taxonID	type	description	language	source
978FA53C235B4ABF4652D1925D22404C.taxon	description	Figs 139 - 142	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
978FA53C235B4ABF4652D1925D22404C.taxon	description	Description. Wing length 3.6 - 4.1 mm (♂), 4.3 mm (♀). Length of ultimate section of vein M 4 divided by penultimate section: 0.6 - 0.7. Eye height divided by gena height: 3.6 - 5.3 (up to 10.0 in German material examined). First flagellomere slightly elongate with distal margin covered with tuft of dense, pale hairs. Fronto-orbital plate and parafacial slightly produced, curving under eye as distinct cheek. Ocellar triangle hemispherical in outline. Epistoma relatively large to narrow. Thorax and abdomen with light greyish pruinosity. Chaetotaxy: Three ori, two ors. Four to six dorsocentrals (four in Nearctic specimen), slightly decreasing in size anteriorly (more so presuturally). Mid tibia with two posteromedial setae. Colouration: Body dark brown with halter white and gena and parafacial light brown; lunule, pedicel, scape and frons (between narrow fronto-orbital plates) brownish orange; first flagellomere orange with deeper brown tint past base, sometimes mostly brown; palpus brownish; posterior 1 / 3 - 1 / 2 of frons sometimes darker; ocellar triangle dark brown, distinct, slightly larger than tubercle; notopleuron slightly paler than rest of notum. Calypter margin and hairs white. Examined European material with paler parts of head lighter orange, parafacial and posterior parts of frons darker, thorax reddish, palpus reddish orange and lunule yellow. Wing veins light brown; coxae and femora paler brown with apices of latter yellow; tibiae and tarsi light brownish orange. Genitalia: (Figs 139 - 142) Surstylus entirely fused to epandrium and with several tubercle-like setae on inner face (concentrated posteriorly). Hypandrium produced at apex. Postgonite broad and flat apically with inner-medial swelling. Phallophorus elongate and narrow, interlocking and partially fused to basiphallus. Left 1 / 2 of basiphallus short, arising apically from phallophorus; right 1 / 2 of basiphallus broad basally and with thin curved apical section; apices of both halves abruptly converging. Hypophallus small and membranous with lightly sclerotised medial section. Mesophallus not much longer than wide, rounded and slightly flattened basally, and with several basal, lateral and anteromedial extensions; distiphallus separate, not much longer than wide, cup-like with internal fringe of hairs and basal 1 / 2 more abruptly narrowed. Ejaculatory apodeme asymmetrical, with distal margin irregular and medial rib offset and annulated.	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
978FA53C235B4ABF4652D1925D22404C.taxon	distribution	Distribution. USA: VA *. Europe.	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
978FA53C235B4ABF4652D1925D22404C.taxon	materials_examined	Material examined. England. Hampstead, 26. vi. 1954, em. 2. viii. [19] 54, CNC 352640 (1 ♀, CNC). Germany. Thuringen: H. Buhr, mine an Cynoglossum Taraxacum officinale, vii. 1964, Hering, CNC 352639, No. 2034 (1 ♂ 1 ♀ [with puparia], CNC). Europe. [illegible], 20. vii. 1953, em. 11. viii. [19] 53, CNC 352638 (1 ♂, CNC), [illegible] viii. 1908 (2 ♂ 1 ♀, USNM). USA. VA: Strausberg, 21. ix. 1980, W. H. Rowe (1 ♂, USNM).	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
38923B5CF4E6ABC71684C106F346154D.taxon	description	Figs 34, 143 - 146	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
38923B5CF4E6ABC71684C106F346154D.taxon	description	Description. Wing length 2.1 - 2.9 mm (♂), 2.5 - 3.5 mm (♀). Length of ultimate section of vein M 4 divided by penultimate section: 0.6 - 0.8. Eye height divided by gena height: 3.6 - 5.6. First flagellomere relatively elongate with dorsoapical corner slightly pointed; velvety with small apical tuft of dense pale hairs (only distinct when viewed anteriorly). Fronto-orbital plate and parafacial slightly pronounced, curving under eye as cheek. Ocellar triangle reaching level of anterior ors, sides concave. Chaetotaxy: Two ors, two or three ori (if three, anterior seta smaller). Four postsutural dorsocentrals, anterior two much shorter. Mid tibia with two posteromedial setae. Colouration: Body black with halter white and wing veins paler and fore knee sometimes very narrowly yellow. Calypter margin and hairs white. Faint greenish shine sometimes evident, mostly on abdomen. Genitalia: (Figs 143 - 146) Surstylus broad and triangular, entirely fused to epandrium, margin darkly pigmented, setae clustered at apex and inner margin with several medial to subapical tubercle-like setae. Inner lobe of hypandrium with furrows leading to base of setae. Postgonite small, flat, lobe-like. Halves of basiphallus converging to point of fusion at base; apices abruptly converging; right 1 / 2 with long membranous extension at midpoint. Distiphallus of " Agromyza nigripes - type " (capsule-shaped with subbasal opening for entry of ejaculatory duct, pronounced dorsobasal collar, and medial convolution), with sides parallel medially, one pair of elongate parallel dark ventromedial swellings, and a slightly broadened apical margin with inner surface minutely spinulose; slightly angled dorsally.	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
38923B5CF4E6ABC71684C106F346154D.taxon	distribution	Distribution. Canada: AB, BC, MB, NB *, NL, NS *, NT, NU *, ON, QC, SK *, YT *. USA: AK, CA, CO, DC *, IA, IL, MA, MD *, MI, NC *, NY, OH, PA *, SC *. Widespread in Palaearctic (Cerny et al 2020).	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
38923B5CF4E6ABC71684C106F346154D.taxon	materials_examined	Additional material examined. Canada. AB: Black Foot Hills, 9. viii. 1940, A. R. Brooks, CNC 352861 (1 ♀, CNC), Lethbridge, 27. vi. 1923, H. L. Seamans, CNC 352860 (1 ♀, CNC), Banff Natl. Pk., Lk. Louise, 1402 m, 7. vii. 1955, R. Coyles, CNC 352693 (1 ♀, CNC), Banff, Jasper Hwy, Sunwapta Pass, 2011 m, 7. vii. 1955, R. Coyles, CNC 352692 (1 ♀, CNC), Elkwater, 11. vi. 1956, CNC 352652 (1 ♂, CNC), Onefour, 49 ° 6 ' 0 " N, 110 ° 24 ' 0 " W, 4. vi. 1955, J. R. Vockeroth, CNC 352653, CNC 352654 (2 ♂, CNC), Elk Island N. P. Wood Bison Trail wetland alongside aspen forest, lots of tall grass, 53.5666 ° N, 112.8514 ° W, 722 m, BIOBus, 1. vii. 2012, BIOUG 06731 - D 05 (1 ♂, CNC), Waterton Lakes NP, Highway 6 pulloff east of 2 Flags Lookout montane forest, douglas fir and lodgepole pine (mostly conifer with aspen / birch understory), 49.065 ° N, 113.7781 ° W, 1562 m, BIOBus, 11. viii. 2012, BIOUG 06502 - C 07 (1 ♀, CNC), BC: Liard Hot Spg. Mi 496 Alaska Hwy, 457 m, 9 - 10. vii. 1959, E. E. MacDougall, CNC 352698 (1 ♀, CNC), Moosehorn Lake, 58 ° 10 ' 0 " N, 132 ° 7 ' 0 " W, 1371 m, 25. vii. 1960, R. Pilfrey, CNC 352658 (1 ♂, CNC), Summit L., Mi 392 Alaska Hwy, 1402 m, 16. vii. 1959, E. E. MacDougall, CNC 352699 (1 ♀, CNC), Terrace, 10. vi. 1960, 5. vi. 1960, C. H. Mann, CNC 352655, CNC 352656, CNC 352657, CNC 352697 (3 ♂ 1 ♀, CNC), Vernon, 3. ix. 1931, R. D. Bird, CNC 352651, 2 s 37, IV 31 (1 ♂, CNC), Bobson, 6. v. 1952, H. R. Foxlee, CNC 352862 (1 ♀, CNC), Oliver, 20. v. 1923, C. B. Garrett, CNC 352863 (1 ♀, CNC), Vernon, 31. vii. 1937, H. Leech, CNC 352864 (1 ♀, CNC), Victoria, 20. v. 1919, W. Downes, CNC 352844 (1 ♂, CNC), MB: Minnedosa, 5 mi N, 8. vii. 1958, R. L. Hurley, CNC 352690 (1 ♀, CNC), Shilo, 5 mi SW, 28. v. 1958, R. B. Madge, CNC 352663 (1 ♂, CNC), Western MB, Riding Mountain Nat. Pk. - North Escarpment Trailhead wet meadow / marsh, 50.674 ° N, 99.65 ° W, 726 m, J. Straka, J. Crossey, 15. viii. 2008, 08 BDIP- 1973 (1 ♀, CNC), Aweme, 26. vi. 1916, N. Criddle, CNC 352842 (2 ♂, CNC), 28. viii. 1917, CNC 352843 (1 ♂, CNC), NB: Kouchibouguac N. P., 8. vii. 1977, J. F. McAlpine, Code- 6020 N, CNC 352688, CNC 352689 (2 ♀, CNC), NL: Gros Morne; Gros Morne Mountain Hiking Trail, 49.5657 ° N, 57.8324 ° W, 39 m, J. Crossey, R. Labbee, A. Smith, M. Zhang, 15. vii. 2009, 09 BBEDI- 0938 (1 ♀, CNC), St. John's, Agric. Exp. Sta., 12. vii. 1967, 15. vii. 1967, J. F. McAlpine, CNC 353033, CNC 353041, CNC 353042 (2 ♂ 1 ♀, CNC), NS: Kentville, 22. viii. 1912, from tortricid larva on apple, [illegible], CNC 352650 (1 ♂, CNC), NT: Ft. McPherson, 19. vii. 1957, R. Hurley, CNC 352695 (1 ♀, CNC), NU: [N. W. T.] Muskox L., 64 ° 45 ' 0 " N, 108 ° 10 ' 0 " W, 2. viii. 1953, J. G. Chillcott, CNC 352696 (1 ♀, CNC), ON: Almonte, 18. v. 1951, J. F. McAlpine, CNC 352679 (1 ♀, CNC), Hailerbury, 12. viii. 1947, G. S. Walley, CNC 352646 (1 ♂, CNC), Marmora, 1. vi. 1952, 13. v. 1952, J. C. Mitchell, J. R. Vockeroth, CNC 352674, CNC 352675, CNC 352676 (3 ♀, CNC), Maynooth, 25. v. 1951, J. F. McAlpine, CNC 352677 (1 ♀, CNC), Minnedosa, 5 mi N, 8. vii. 1958, R. L. Hurley, CNC 352691 (1 ♀, CNC), Normandale, 42 ° 42 ' 0 " N, 80 ° 19 ' 0 " W, 27. v. 1956, J. R. Vockeroth, CNC 352645 (1 ♂, CNC), 29. v. 1956, J. R. Lonsway, CNC 352678 (1 ♀, CNC), Ottawa, 8. vii. 1952, G. E. Shewell, CNC 352647 (1 ♂, CNC), Port Hope, 25. v. 1925, N. K. Bigelow, CNC 352680 (1 ♀, CNC), Port Severn, 3 mi N, 18. v. 1959, J. G. Chillcott, CNC 352681 (1 ♀, CNC), Putnam, 26. vi. 1925, G. S. Walley, CNC 352644 (1 ♂, CNC), St. Williams, 42 ° 40 ' 0 " N, 80 ° 25 ' 0 " W, 23. v. 1956, J. R. Vockeroth, CNC 352649 (1 ♂, CNC), Turkey Pt., 42 ° 39 ' 0 " N, 80 ° 21 ' 0 " W, 25. v. 1956, J. R. Vockeroth, CNC 352683 (1 ♀, CNC), Brockville, 5. viii. 1903, W. Metcalfe, CNC 352847 (1 ♀, CNC), Cottage Beaulieu, 16. vii. 1906, 145, CNC 352854 (1 ♀, CNC), Mer Bleue, 10. v. 1938, G. E. Shewell, CNC 352834 (1 ♂, CNC), Norway Point, Lake of Bays, 31. vii. 1919, J. McDunnough, CNC 352851 (1 ♀, CNC), Orillia, 18. vii. 1923, C. H. Curran, CNC 352848 (1 ♀, CNC), 17. viii. 1923, CNC 352850 (1 ♀, CNC), Ottawa, 15. vii. 1938, A. Brooks, CNC 352830 (1 ♂, CNC), Ottawa, 11. ix. 1947, G. E. Shewell, CNC 352829 (1 ♂, CNC), Ottawa, A. Brooks, 5. vii. 1938, CNC 352852 (1 ♂, CNC), Ottawa, 27. vii. 1912, Beaulieu, CNC 352853 (2 ♂ 2 ♀, CNC), Pt. Ryerse, 1. vi. 1939, G. E. Shewell, CNC 352835 (1 ♂, CNC), St. Johns, Little Montreal River, 9. vii. 1937, G. E. Shewell, CNC 352855 (1 ♀, CNC), Simcoe, 8. vi. 1939, G. E. Shewell, CNC 352849 (1 ♀, CNC), Simcoe, G. E. Shewell, 14. vi. 1939, CNC 352831 (1 ♂, CNC), Simcoe, G. E. Shewell, 22. vi. 1939, CNC 352832 (1 ♂, CNC), Simcoe, G. E. Shewell, 29. v. 1939, CNC 352833 (3 ♂ 1 ♀, CNC), Metcalfe, 2 mi N, 10. vi. 1982, B. E. Cooper, CNC 353037 (1 ♂, CNC), Metcalfe, 25. v. 1983, B. E. Cooper, CNC 353038 (1 ♂, CNC), Ottawa, damp second-growth Acer - Betula wood, 15. viii. 2003, 20. vii. 1974, 29. vi. 1991, J. R. Vockeroth, CNC 353032, CNC 353035, CNC 353036 (2 ♂ 1 ♀, CNC), Port Severn, 3 mi N, black spruce bog, 18. v. 1959, J. G. Chillcott, CNC 353039, CNC 353034 (2 ♂, CNC), QC: Ile de Montreal, 7. vii. 1906, Beaulieu, CNC 352837 (1 ♂, CNC), Old Chelsea, 13. vi. 1961, J. R. Vockeroth, CNC 353040 (1 ♂, CNC), St. Johns, Little Montreal River, 9. vii. 1937, G. E. Shewell, CNC 352836 (1 ♂, CNC), Wakefield, 9. vii. 1946, G. E. Shewell, CNC 352838 (1 ♂, CNC), Woburn, 19. vi. 1923, C. H. Curran, CNC 352859 (1 ♀, CNC), Aylmer, 16. vii. 1959, C. H. Mann, CNC 352684 (1 ♀, CNC), Farnham, 5. vi. 1963, J. R. Vockeroth, CNC 352642, CNC 352682 (1 ♂ 1 ♀, CNC), Hull, 20. vi. 1956, J. R. Vockeroth, CNC 352685 (1 ♀, CNC), Indian House L., 20. vii. 1954, 27. vi. 1954, 27. vii. 1954, R. Coyle, R. Coyles, W. R. Richards, CNC 352648, CNC 352686, CNC 352687 (1 ♂ 2 ♀, CNC), Knowlton, Bolton Pass, 243 m, 5. vi. 1963, J. R. Vockeroth, CNC 352641 (1 ♂, CNC), Mt. Orford, 365 m, 5. vi. 1963, J. R. Vockeroth, CNC 352643 (1 ♂, CNC), Abbotsford, G. Shewell, 29. v. 1936, CNC 352839, CNC 352858 (1 ♂ 1 ♀, CNC), Abbotsford, 10. viii. 1937, G. E. Shewell, CNC 352840 (1 ♂, CNC), Abbotsford, G. Shewell, 20. viii. 1936, CNC 352841 (1 ♂, CNC), 30. v. 1936, CNC 352857 (1 ♀, CNC), Abbotsford, 20. v. 1931, J. B. Maltais, CNC 352856 (3 ♂ 3 ♀, CNC), SK: Christopher L., 27. viii. 1948, A. R. Brooks, CNC 352705, CNC 352706 (2 ♀, CNC), Val Marie, 49 ° 15 ' 0 " N, 107 ° 44 ' 0 " W, 5. vi. 1955, 9. vi. 1955, J. R. Vockeroth, CNC 352659, CNC 352662, CNC 352664, CNC 352665, CNC 352666, CNC 352700, CNC 352701, CNC 352702, CNC 352703, CNC 352704, CNC 352707 (5 ♂ 6 ♀, CNC), Grasslands National Park, Visitor's Center grass cattle pasture, 49.246 ° N, 107.732 ° W, 812 m, J. Cossey, N. Jeffery, J. Straka, 14. vii. 2008, 08 BBDIP- 2742 (1 ♂, CNC), Saskatoon, 12. vii. 1940, 22. vii. 1939, 25. v. 1926, 25. viii. 1923, 28. ix. 1925, sf. wheat, A. P. Robinson, K. M. King, King, 13288; D 679; ' 41, 1328 B; D 676; ' 41, 1328 B; D 677, 1328 B; D 678, 16410 - 3 N 9 B, 16423 1229 B; D 348, 16425 26 BS 5; D 350, 63 AN, D 663, CNC 352845, CNC 352846, CNC 352865, CNC 352866, CNC 352867, CNC 352868, CNC 352869, CNC 352870, CNC 352871 (2 ♂ 7 ♀, CNC), YT: Otter Lake, 1219 m, 15. vii. 1960, J. E. H. Martin, CNC 352694 (1 ♀, CNC). USA. AK: Anchorage, 18. vi. 1951, 3. vii. 1951, IDEMA Illustration, R. S. Bigelow, CNC 352668, CNC 352720 (1 ♂ 1 ♀, CNC), Fairbanks, 13. vi. 1952, J. B. Bartley, CNC 352669 (1 ♂, CNC), Mackenzie Delta, Reindeer Depot, 30. vi. 1948, J. R. Vockeroth, CNC 352661 (1 ♂, CNC), Umiat, 13. vii. 1959, 24. vii. 1959, 5. vii. 1959, 6. vii. 1959, 7. vii. 1959, 7. viii. 1959, 9. viii. 1959, IDEMA Illustration, J. E. H. Martin, R. Madge, CNC 352660, CNC 352667, CNC 352673, CNC 352712, CNC 352713, CNC 352714, CNC 352715, CNC 352716, CNC 352717, CNC 352718, CNC 352719 (3 ♂ 8 ♀, CNC), CO: Walden, 11. viii. 1965, G. F. Knowlton (1 ♂, USNM), Doolittle Ranch, 9800 ', Mt. Evans, 9. vii. 1961, C. H. Mann (1 ♂, USNM), Doolittle Ranch, Mt. Evans, 2987 m, 3. viii. 1961, 9. vii. 1961, C. H. Mann, CNC 352670, CNC 352708 (1 ♂ 1 ♀, CNC), Boulder, 5500 ', 5. vi. 1961, B. H. Poole (1 ♀, USNM), Mt. Evans, 3535 m, 11. vii. 1961, C. H. Mann, CNC 352711 (1 ♀, CNC), Mt. Evans, 3566 m, 22. vii. 1961, B. H. Poole, CNC 352710 (1 ♀, CNC), Nederland, 2529 m, 5. vii. 1961, J. G. Chillcott, CNC 352672 (1 ♂, CNC), Jackson Co., Rabbit Ears Pass, 7. vii. 1961, J. G. Chillcott, CNC 352671, CNC 352709 (1 ♂ 1 ♀, CNC), DC: Theo Roosevlt Id, 4. vi. 1977, W. N. Mathis (1 ♂, USNM), MA: Boston, June (1 ♂ 1 ♀, USNM), Concord, 19. vii. 1961, marsh, W. W. Wirth (2 ♂ 3 ♀, USNM), Forest Hills, 21. ix. 1913, A. L. Melander (2 ♀, USNM), MD: Colesville, 4. vii. 1976, W. W. Wirth (2 ♀, USNM), Colesville, 14. vi. 1975, Malaise trap, W. W. Wirth (1 ♀, USNM), NC: Macon Co., Highlands, Lake Ravenel, 7. vi. 1986, Malaise trap, W. W. Wirth (1 ♂, USNM), NY: Ithaca, 15. viii. 1926, A. L. Melander (1 ♂, USNM), Geneva, 28. v. 1914, A. L. Melander (1 ♂, USNM), Long Island, Cold Spring Harbor, A. L. Melander (1 ♂ 2 ♀, USNM), Allegany State park, 28. v- 3. vi. 1963, mossy woods, W. W. Wirth (1 ♀, USNM), PA: Mineral Spr., 5. ix. 1927, A. L. Melander (1 ♂, USNM), Chester Co., Avondale, Stroud Res. Ctr., 28. ix. 2006, K. Styer (1 ♀, UDCC), SC: Black Falls, 7. viii. 1953, A. L. Melander (1 ♀, USNM).	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
09BEDD998937372822352CFCD3870443.taxon	description	Figs 147 - 151	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
09BEDD998937372822352CFCD3870443.taxon	description	Description. Wing length 2.3 - 2.7 mm (♂), 2.7 - 3.9 mm (♀). Length of ultimate section of vein M 4 divided by penultimate section: 0.5 - 0.7. Eye height divided by gena height: 2.9 - 3.6. First flagellomere slightly longer than wide with apex broadly rounded; without tuft of pale hairs. Fronto-orbital plate and parafacial slightly projecting. Ocellar triangle broadly rounded and short, not extending much past ocelli. Buccal cavity subquadrate with anteromedial margin emarginate. Chaetotaxy: Four or five thinner ori with anterior seta sometimes shorter; one ors. Four postsutural dorsocentrals, decreasing in length anteriorly. Mid tibia with two posteromedial setae. Female sometimes with strong additional seta between acrostichal seta and posterior dorsocentral. Colouration: Body predominantly brown, halter white. Gena (excluding ventral margin), parafacial and frons (excluding posterolateral corner, posterior margin and ocellar triangle) light brownish orange. Scape and pedicel yellow; first flagellomere orange with distal 1 / 2 - 2 / 3 brownish. Lunule orange with yellowish pilosity. Face brown. Palpus and clypeus dark brown. Tarsi yellow (slightly darker on posterior legs), fore tibia light brown and knees narrowly yellow. Calypter margin and hairs white. Female with frons darker (sometimes entirely brown or with anterior margin lighter), gena darker and fore tibia darker medially. Genitalia: (Figs 147 - 151) Surstylus triangular, entirely fused to epandrium; with apical setae and medial tubercle-like setae. Hypandrium long and thin with narrow apical point. Postgonite lobate, directed apically. Phallophorus produced apically and fused to base of basiphallus. Halves of basiphallus widely bowed with bases broadly fused; elongate and narrow with margins irregular. Distiphallus very long, thin, dark, bifid, and strongly curved into semicircle at split; base of distiphallus with transverse dorsal band and paired ventral sclerites. Hypophallus large, membranous, and directed apically. Ejaculatory apodeme dark and very reduced in size. Variation: Female from CA differs as follows: wing length 4.1 mm; anterior (of four) ori small; only three dorsocentrals; eye height divided by gena height 2.5; tibiae yellow to base and apex; gena mostly pale.	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
09BEDD998937372822352CFCD3870443.taxon	distribution	Distribution. Canada: ON. USA: CA, CO, MA, MD, NY, PA, VA *.	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
09BEDD998937372822352CFCD3870443.taxon	materials_examined	Additional material examined. Canada. ON: Belleville, P. Harris, vii. 1969, em. 22. ix. 1969, CNC 352721 (1 ♀ [with puparium], CNC), Ottawa, damp second-growth Acer - Betula woods, 8. viii. 1993, J. R. Vockeroth, CNC 353060 (1 ♂, CNC). USA. CA: Carbon Canyon, 14. vi. 1977, on Artemesia d. (1 ♀, USNM), CO: Chaffee Co., Poncha Springs, South Arkansas River, 8. vii. 2015, C. S. Eiseman, Helianthus, em. 28. vii- 1. viii. 2015, # CSE 1872, CNC 654328 - 654332 (1 ♂ 4 ♀, CNC), MA: Worcester Co., Sturbridge, Leadmine Rd., 6. vii. 2013, em. 20. vii. 2013, C. S. Eiseman, ex Ambrosia artemisiifolia, # CSE 725, CNC 392679, CNC 392680 (2 ♀, CNC), MD: Plummers Isl., 30. v. 1913, R. C. Shannon (1 ♀, USNM), College Park, 7. vii. 1935, C. T. Greene (1 ♂, USNM), Pr. William Co., Woodbridge, 26. vii. 1968, J. W. Adams (1 ♂, USNM), Montgomery Co., Colesville, 26. vi. 1977, Malaise trap, W. W. Wirth (2 ♂, USNM), 30. vi. 1977 (1 ♂, USNM), Colesville, W. W. Wirth, 4. vii. 1976 (2 ♀, USNM), 11. vii. 1974 (2 ♂, USNM), 24. vii. 1974 (1 ♂, USNM), 28. vii. 1976 (2 ♂, USNM), 1. viii. 1976 (2 ♂, USNM), 4 mi SW of Ashton, 1. ix. 1981, Malaise trap, G. F. and J. F. Hevel (1 ♀, USNM), Bethseda, G. Steyskal, 6. vii. 1970 (2 ♂, USNM), 7. vii. 1970 (1 ♂, USNM), Allegeny Co., Little Orleans, Little Orleans campground, 4. vi. 1999, sweeping, C. R. Bartlett (1 ♂, UDCC), nr. West Mifflin, Coal Valley Rd. # 2, 5. vii. 1997, sweeping, C. R. Bartlett (1 ♀, UDCC), PA: Chester Co., Pottstown, Warwick County Park, 10. viii. 2014, ex. Ambrosia trifida, em. 2. ix. 2014, C. S. Eiseman, # CSE 1371, CNC 384846 (1 ♀, CNC), VA: Great Falls, 21. vi. 1931, A. L. Melander (1 ♂, USNM), Alexandria, " viii- 5 ", J. M. Aldrich (1 ♀, USNM), Fairfax Co., Turkey Run Park, nr. mouth of Turkey Run, 38 ° 57.9 ' N, 7 ° 09.4 ' W, Malaise trap, 18 - 30. v. 2007, D. R. Smith (1 ♀, USNM), Turkey Run Park, 0.3 km W mouth Turkey Run, 38 ° 58 ' N, 77 ° 09.6 ' W, Malaise trap, D. R. Smith, river 14 - 17. v. 2006 (1 ♂, USNM), river trap, 17 - 24. v. 2006 (2 ♀, USNM), Great Falls Park, swamp trail, 38 ° 59.4 ' N, 77 ° 15.2 ' W, Malaise trap, trap # 2, 18. iv. 2. v. 2007, D. R. Smith (1 ♀, USNM).	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
ED59C6F14D9C3A956550B467BF1B03C6.taxon	description	Figs 152 - 155	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
ED59C6F14D9C3A956550B467BF1B03C6.taxon	description	Description. Wing length 4.0 - 4.1 mm (♂), 4.4 - 4.8 mm (♀). Length of ultimate section of vein M 4 divided by penultimate section: 0.4 - 0.7. Eye height divided by gena height: 2.1 - 2.4. Ocellar triangle small and rounded. First flagellomere small and rounded; without apical tuft of pale hairs. Fronto-orbital plate slightly projecting and parafacial strongly projecting, partially to strongly continuing under eye as cheek. Wing slightly pointed apically with apex between M 1 and R 4 + 5. Thorax with light to dense grey pruinosity. Chaetotaxy: Three to seven ori (two in Spanish female); two ors. Six or seven dorsocentrals, two or three presutural, decreasing in size anteriorly. Mid tibia without posteromedial setae. Colouration: Body mostly dark brown. Head yellow with back of head, occiput, clypeus, mentum and ventral margin of gena dark brown, distal 2 / 3 of first flagellomere brownish, venter of face light brown and frons slightly darker anteriorly. Knees yellowish orange; tibiae and tarsi paler than femora with tibiae slightly darker medially. Scutum with nearly imperceptible metallic green shine in VA female. Calypter margin and hairs white to dark brown. Halter white, rarely with small lateral spot and ventral margin of knob brown (VA female). Abdomen dark brown with indistinct (VA) or strong coating of grey pruinosity, except on brownish orange male terminalia (sometimes with dark dorsomedial spot on epandrium). European specimens often with fronto-orbital plate, face, apex of palpus, parafacial and ring under eye mostly dark, tibiae often yellowish or more orange on distal 1 / 3, and epistoma usually larger. Genitalia: (Figs 152 - 155) Epandrium relatively broad and shallow, with suture between it and surstylus barely evident. Surstylus slightly curved anteriorly and with numerous small, pointed, tubercle-like setae along inner-basal / medial surface. Phallophorus tapered distally and partially fused to flat, pale sclerites of basiphallus, which are weakest and irregular along dorsal margin, with right sclerite partially separated from darker, curved apical section. Hypophallus sac-like and membranous with partial sclerotisation along anteromedial surface. Distiphallus nearly cylindrical with irregularly sclerotised margins not entirely meeting ventrally; twisted past midpoint. Ejaculatory apodeme minute.	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
ED59C6F14D9C3A956550B467BF1B03C6.taxon	distribution	Distribution. USA: VA *. France, Italy, Malta, Germany, Spain, Croatia (Papp and Cerny 2015). Turkey. Chile (Valparaiso, La Cruz; introduced) and Argentina (Valladares 1998; Coel et al. 2006).	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
ED59C6F14D9C3A956550B467BF1B03C6.taxon	materials_examined	Material examined. France. Perpignan, 10. x. 1959, mine Cynara carduuculus, em. 24. v. 1959, K. A. Spencer, CNC 352745 (1 ♂ [with puparium], CNC). Germany [?]. " Agrom. Apfelbecki Str., det. Hendel " (1 ♀, USNM). Spain. Barcelona, " prat ", 27. iii. 1960, K. A. Spencer (1 ♀, USNM), CNC 352746 (1 ♀, CNC), En Alcachofe, La Cruz, Valpo, Nac. 5. ix. 1959, N. Hichins (5 ♂ 2 ♀ 1?, USNM). USA. VA: Fairfax Co., Turkey Run Park, 0.3 km W mouth Turkey Run, 38 ° 58 ' N, 77 ° 09.6 ' W, Malaise trap, 29. iii- 25. iv. 2007, D. R. Smith (1 ♀, USNM).	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
B9B42F28076E16D54E58C1AD0A86947E.taxon	description	Figs 156 - 160	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
B9B42F28076E16D54E58C1AD0A86947E.taxon	description	Description. Wing length 2.2 - 2.5 mm (♂), 2.5 - 3.2 mm (♀). Length of ultimate section of vein M 4 divided by penultimate section: 0.6 - 0.8. Eye height divided by gena height: 2.2 - 3.4. First flagellomere slightly longer than high with rounded dorsoapical point (pronounced to relatively indistinct), without apical tuft of pale hairs. Fronto-orbital plate and parafacial projecting (more so anteriorly), continuing under eye as cheek. Ocellar triangle longer than wide and subshiny. Costa extending slightly past R 4 + 5. Smaller females with vein dm-m incomplete. Chaetotaxy: Two ori; three ors (or vice versa), sometimes appearing as four ori and one ors. One presutural dorsocentral and three or four postsutural dorsocentrals, decreasing in length anteriorly. Mid tibia with two posteromedial setae. Colouration: Body dark brown with halter white and gena and frons (aside from fronto-orbital plate and ocellar triangle) reddish, fore knee yellow and tarsi dirty yellow. Calypter margin and hairs white. Female from " Turkey Run, headquarters " with light green metallic shine on thorax, abdomen and pleuron (faintest). Genitalia: (Figs 156 - 160) Anterodistal margin of epandrium deeply incised before surstylus. Surstylus triangular, fused to epandrium with suture evident; inner-basal margin with several small tubercle-like setae. Hypandrium slightly produced at apex, inner margin of lobe thickened with several setulae. Postgonite small and lobe-like with thin plate-like base. Phallus relatively small, narrow, and weakly sclerotised. Phallophorus tapering apically, fused to halves of basiphallus, which converge to base. Halves of basiphallus with internal fold apically, with distal portion sharply directed inwards; lateral membrane broad, twisted past midpoint. Distiphallus of " Agromyza nigripes - type " (capsule-shaped with subbasal opening for entry of ejaculatory duct, pronounced dorsobasal collar, and medial convolution); nearly carinate ventromedially, distal section with elongate medial split.	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
B9B42F28076E16D54E58C1AD0A86947E.taxon	distribution	Distribution. Canada: AB, BC, MB, NB *, ON, QC, SK, YT *. USA: IL, MD *, NC *, NH, VA *.	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
B9B42F28076E16D54E58C1AD0A86947E.taxon	materials_examined	Additional material examined. Canada. AB: Banff, C. B. D. Garrett, 8. vi. 1922, CNC 352760 (1 ♀, CNC), MB: Ninette, J. F. McAlpine, 21. v. 1958, CNC 352778 (1 ♀, CNC), 9. v. 1958, CNC 352755 (1 ♂, CNC), R. B. Madge, 9. v. 1958, CNC 352776 (1 ♀, CNC), Shilo, 5 mi SW, J. F. McAlpine, 28. v. 1958, CNC 352777 (1 ♀, CNC), NB: Kouchibouguac N. P., Hanley and Cooper, 23. v. 1977, Code- 5113 Q, CNC 352754, CNC 352774, CNC 352775 (1 ♂, 2 ♀, CNC), W. P. Hanley, 20. v. 1977, Code- 5098 B, CNC 352753 (1 ♂, CNC), ON: Bell's Cor [ner]., J. F. McAlpine, 8. v. 1951, CNC 352766 (1 ♀, CNC), Marmora, J. F. McAlpine, 23. iv. 1952, CNC 352751, CNC 352768, CNC 352769 (1 ♂ 2 ♀, CNC), 24. iv. 1952, CNC 352752, CNC 352767 (1 ♂, 1 ♀, CNC), 25. iv. 1952, CNC 352772 (1 ♀, CNC), 28. iv. 1952, CNC 352770 (1 ♀, CNC), 29. iv. 1952, CNC 352773 (1 ♀, CNC), 9. v. 1952, CNC 352771 (1 ♀, CNC), Maynooth, J. F. McAlpine, 24. v. 1951, CNC 352764 (1 ♀, CNC), Metcalfe, B. E. Cooper, 14. v. 1983, CNC 353020, CNC 353022 (2 ♂, CNC), 25. v. 1983, CNC 353021, CNC 353024 (2 ♂, CNC), 27. iv. 1983, CNC 353019, CNC 353025, CNC 353026 (3 ♂, CNC), 3. v. 1983, CNC 353027 (1 ♂, CNC), 30. iv. 1983, CNC 353018, CNC 353023 (2 ♂, CNC), 7. v. 1994, CNC 353028 - 353031 (4 ♂, CNC), Ottawa, 28. iv. 1955, J. R. Vockeroth, CNC 352765 (1 ♀, CNC), Woodroffe, J. G. Chillcott, 30. iv. 1952, CNC 352763 (1 ♀, CNC), QC: Abbotsford, G. E. Shewell, 27. iv. 1936, CNC 352747, CNC 352748, CNC 352750, CNC 352758 (3 ♂, 1 ♀, CNC), 27. iv. 1966, CNC 352749 (1 ♂, CNC), Shewell, 15. v. 1936, CNC 352759 (1 ♀, CNC), SK: Saskatoon, A. R. Brooks, 28. iv. 1949, CNC 352756 (1 ♂, CNC), 9. v. 1949, CNC 352762 (1 ♀, CNC), YT: Dawson, 14 mi E, P. J. Skitsko, 6. viii. 1962, 396 m, CNC 352761 (1 ♀, CNC). USA. MD: Montgomery Co., Plummers Island, 38 ° 58 ' N, 77 ° 10 ' W, Malaise trap, lower trap, 30. iii- 22. iv. 2006, D. R. Smith and J. W. Brown (1 ♀, USNM), Cabin John Bridge, 23. iv. 1914, R. C. Shannon (1 ♂, USNM), Plummers Isl., R. C. Shannon, 8. iv. 1914 (4 ♂ 3 ♀, USNM; 2 ♂ 2 ♀, CNC), 12. iv. 1914 (1 ♂, USNM), 5. iv. 1914 (1 ♂, USNM), 3. iv. 1914 (1 ♂ 1 ♀, USNM), Plummers Island, Rock Run, 25. iii. 1914, R. C. Shannon (1 ♂, USNM), nr. Plummers Isl., 28. iii. 1915, R. C. Shannon (2 ♂, USNM), NC: Smokies, Andrews Bald, 9. vii. 1914, A. L. Melander (1 ♂, USNM), VA: Fairfax Co., Turkey Run Park, nr. mouth of Turkey Run, 38 ° 57.9 ' N, 7 ° 09.4 ' W, Malaise trap, 29. iii- 25. iv. 2007, D. R. Smith (4 ♂ 1 ♀, USNM), Turkey Run Park, nr. headquarters bldg. 38 ° 57.7 ' N, 77 ° 08.9 ' W, Malaise trap, 29. iii- 17. iv. 2007, D. R. Smith (1 ♀, USNM), Great Falls Park, swamp trail, 38 ° 59.4 ' N, 77 ° 15.2 ' W, Malaise trap, trap # 1, 18. iv- 2. v. 2007, D. R. Smith (1 ♀, USNM).	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
722140FD383C726B642C040F9EAB3760.taxon	description	Figs 37, 161 - 166	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
722140FD383C726B642C040F9EAB3760.taxon	description	Description (Fig. 37). Wing length 2.0 - 2.1 mm (♂), 2.3 - 2.4 mm (♀). Length of ultimate section of vein M 4 divided by penultimate section: 0.6 - 0.9. Eye height divided by gena height: 1.9 - 2.7. First flagellomere subcircular, without apical tuft of pale hairs. Fronto-orbital plate (more so anteriorly) and parafacial strongly projecting and distinctly continuing under eye as cheek. Ocellar triangle relatively small with corners rounded. Palpus relatively ovate. Chaetotaxy: Two ori; two ors. Ocellar seta thinner than postocellar, and sometimes shorter, but never reaching 1 / 2 length. Three postsutural dorsocentrals, decreasing in length anteriorly; possibly two more anteriorly that are not much longer than surrounding setulae. Acrostichal seta not much longer than surrounding setulae. Four scattered rows of acrostichal setulae. Mid tibia without posteromedial setae. Colouration: Head predominantly light yellow; first flagellomere yellow; back of head brown above foramen and with grey pruinosity dorsally; ocellar triangle dark brown; posterolateral corner and posterior margin of frons brownish, with spot extending laterally to just behind level of anterior ors; clypeus light brown; face white. Thorax dark brown, covered with grey pruinosity, halter white. Calypter margin and hairs white to yellow. Legs yellow with mid and hind coxae brown, at least in part. Abdomen dark brown; epandrium yellow or with orange to brown tint with dark brown dorsal spot; if epandrium yellow, sternite 8 sometimes also yellow with medial spot. Genitalia: (Figs 161 - 166) Surstylus fused with epandrium with suture obliterated, shape triangular (nearly equilateral), directed inwards, with several setae along posterior margin. Cercus relatively broad and flat with inner surface covered with pointed tubercle-like setae. Hypandrium setulose, slightly sinuate, and inner lobe with medial desclerotisation. Postgonite short. Phallophorus fused to single sclerite of basiphallus, which originates on left side and is twisted dextrally. Hypophallus membranous with faint left lateral sclerotisation. Mesophallus long, narrow, dark, and flat, lying along ventral margin of membrane; distiphallus short, flat and wrapped ventrally (nearly cylindrical), shortest dorsally. Ejaculatory apodeme minute and finger-like.	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
722140FD383C726B642C040F9EAB3760.taxon	distribution	Distribution. Canada: AB, NB *, ON, QC *. USA: IL, IN, IA, KS *, MI *, NY, OH, PA, VA, VT; known from leaf mines in AL, AR, CO, CT, FL, GA, MA, MD, MN, ND, NJ, TN, TX, WI.	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
722140FD383C726B642C040F9EAB3760.taxon	materials_examined	Additional material examined. Canada. AB: Onefour, on wild cherry blossom, 2. vi. 1956, O. Peck, CNC 353069, CNC 353072, CNC 352809 (2 ♂, 1 ♀, CNC), NB: Curventon, 19. v. 1959, W. W. Moss, C- 2, CNC 352810 (1 ♀, CNC), ON: Almonte, 18. v. 1951, J. F. McAlpine, CNC 352788, CNC 352803 - 352806 (1 ♂, 4 ♀, CNC), Marmora, 16. v. 1952, J. C. Mitchell, CNC 352786 (1 ♂, CNC), 30. iv. 1952, J. F. McAlpine, CNC 352802 (1 ♀, CNC), Marmora, 28. iv. 1952, J. F. McAlpine, CNC 352787 (1 ♂, CNC), Metcalfe, 14. v. 1994, B. E. Cooper, CNC 353066 (1 ♂, CNC), 17. v. 1994, CNC 353067 (1 ♂, CNC), 7. v. 1994, CNC 353068 (1 ♂, CNC), Midland, swampy wood, 26. v. 1959, J. G. Chillcott, CNC 353071 (1 ♂, CNC), Nippising, 27. ii. 1959, # 83, S 58 - 1 - 1381 - 01, CNC 352779 (1 ♂, CNC), Ottawa nr. Uplands Airport, 22. v. 1990, J. M. Cumming, CNC 353064 (1 ♂, CNC), Ottawa, damp second-growth Acer - Betula wood, 1. vi. 1995, J. R. Vockeroth, CNC 353063 (1 ♂, CNC), 28. v. 1995, CNC 353070 (1 ♂, CNC), at sap on Acer stump, 10. v. 1991, J. R. Vockeroth, CNC 353062 (1 ♂, CNC), bleeding elm, 22. v. 1952, J. F. McAlpine, CNC 352791 (1 ♀, CNC), 28. v. 1951, J. F. McAlpine, CNC 352794 (1 ♀, CNC), 5. v. 1952, B. Hartley, CNC 352783 (1 ♂, CNC), J. G. Chillcott, CNC 352783 - 352795, CNC 352780, CNC 352792 (2 ♂, 3 ♀, CNC), 8. v. 1952, J. Chillcott, CNC 352782, CNC 352785, CNC 352796 - 352800 (2 ♂, 5 ♀, CNC), Pt. Pelee, 3. vi. 1929, G. S. Walley, CNC 352801 (1 ♀, CNC), QC: Hemmingford, 10. v. 1931, J. B. Maltais, CNC 352807 (1 ♀, CNC), Old Chelsea, 8. v. 1938, G. E. Shewell, CNC 352808 (1 ♀, CNC). USA. IL: White Heath, 30. iv. 1916 (1 ♀, USNM), Champaign, 28. iv. 1953, J. F. McAlpine, CNC 352789 (1 ♂, CNC), IN: Lafayette, J. M. Aldrich, 4. v. 1916 (1 ♂, USNM), 11. v. 1916 (1 ♀, USNM), KS: Manhattan, C. W. Sabrosky, 27. iv. 1934 (1 ♀, USNM), 17. vi. 1934 (1 ♀, USNM), Lawrence, Nat. Hist. Res., 27. iii. 1954, J. G. Chillcott, CNC 352781 (1 ♂, CNC), 28. v. 1956, J. G. Chillcott, CNC 352811 - 352818 (8 ♀, CNC), MI: Detroit, 24. v. 1935, G. Steyskal (1 ♂, USNM), E Lansing, C. Sabrosky, 2. vi. 1934 (1 ♀, USNM), 29. iv. 1942 (1 ♀, USNM), NC: Scotland Co., Laurinburg, St. Andrews University, 18. iv. 2017, T. S. Feldman, Celtis laevigata, em. ~ 17. iv. 2018, # CSE 4418, CNC 1144090 (1 ♀, CNC), OK: Payne Co., Mehan, 36.014339 ° N, 96.996744 ° W, 5. iv. 2016, em. by 11. iv. 2017, M. W. Palmer, ex Ulmus rubra, # CSE 3448, CNC 939912 (1 ♂, CNC), VA: Chain Bridge, 23. iv. 1922, J. R. Malloch (1 ♀, USNM), Fairfax Co., Great Falls Park, quarry, 38 ° 59.1 ' N, 77 ° 14.8 ' W, Malaise trap, D. R. Smith, 18 - 23. iv. 2007 (2 ♀, USNM), 13 - 24. v. 2007 (1 ♀, USNM), VT: USA. Vermont: Chittenden Co., South Burlington, Winooski Gorge, 16. v. 2015, C. S. Eiseman, Ulmus rubra, em. 24. iii- 6. iv. 2016, # CSE 2264, CNC 654497 - 654499 (3 ♀, CNC).	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
5A3D36355C6E1A29DC20BEE5C76B0268.taxon	description	Figs 38, 41, 42, 167 - 174	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
5A3D36355C6E1A29DC20BEE5C76B0268.taxon	description	Description (Figs 38, 41, 42). Wing length 2.2 - 2.4 mm (♂). Female unknown [see discussion below]. Length of ultimate section of vein M 4 divided by penultimate section: 0.5 - 0.7. Eye height divided by gena height: 4.2 - 6.0. Male first flagellomere large (usually at least 30 % longer than pedicel, but not much longer than pedicel in a minority of specimens) and varying in shape from elongate and subovate to (more commonly) circular; at least distal 1 / 2 (usually distal 2 / 3) covered with long hairs. Ocellar triangle relatively small with corners slightly rounded. Fronto-orbital plate slightly projecting. Chaetotaxy: Two ori; two ors. Three dorsocentrals, decreasing in length anteriorly with anterior seta not much longer than surrounding setulae. Mid tibia with two posteromedial setae. Colouration: Body primarily dark brown with halter white. Base of first flagellomere and distal margin of pedicel orange; orange region sometimes either extending to basal 1 / 3 of first flagellomere or strongly reduced (particularly if spines on surstylus reduced). Gena sometimes paler, excluding ventral margin. Calypter white with margin sometimes yellowish or slightly brown, and hairs light brown. Base of fore tibia paler or segment paler overall. Tarsi yellow to orange-brown. Genitalia: (Figs 167 - 173) Surstylus small, lobate, margin darkly pigmented; with two or three medial setae and two large posterior spines; spines sometimes minute and rounded and distiphallus more elongate with relatively pronounced internally haired medial section; surstylus barely visible when viewed laterally and with basal suture obliterated. Hypandrium relatively narrow and tapered apically with membranous window in lobe. Postgonite relatively small and upcurved. Halves of basiphallus converging to, and overlapping at base; with small mediolateral membranous lobe on each sclerite; twisted medially and broad apically, with converging ventrodistal points. Distiphallus of " Agromyza nigripes - type " (capsule-shaped with subbasal opening for entry of ejaculatory duct, pronounced dorsobasal collar, and medial convolution); relatively narrow and pale with sides parallel, being only slightly wider apically. Variation: Phallus sometimes elongate with pronounced medial section with densely spinulose inner surface and elongate medial membranous projection on right sclerite of mesophallus (Fig. 174); if so, spines on epandrium reduced to absent. Possibly a new species, but " typical " males show intermediate degrees of spine reduction on epandrium that resemble the state seen in these other males.	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
5A3D36355C6E1A29DC20BEE5C76B0268.taxon	distribution	Distribution. Canada: ON, MB *. USA: CT *, GA, IA, MD, NC, NH *, NY, PA *, UT, VA, WV *.	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
0E4C8A0B45DD28C29E367B8475D1BEF3.taxon	description	Figs 1, 2, 7 - 10, 175 - 178	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
0E4C8A0B45DD28C29E367B8475D1BEF3.taxon	description	Description (Figs 1, 2, 7 - 10). Wing length 3.1 - 3.9 mm (♂), 3.3 - 4.0 mm (♀). Length of ultimate section of vein M 4 divided by penultimate section: 0.5 - 0.7. Eye height divided by gena height: 4.2 - 7.3. First flagellomere small and rounded; pale tuft of apical hairs varies from teardrop-shaped to encompassing distal 1 / 3 of segment. Ocellar triangle relatively small with corners rounded. Chaetotaxy: Three or two ori; two ors. Five dorsocentrals (sometimes small fifth seta indistinct), decreasing in size anteriorly. Mid tibia with two posteromedial setae. Colouration: Setae brown. Body predominantly brown with yellowish tint or yellow with brownish tint, with thorax darker and halter white. First flagellomere dark brown to brown and scape and pedicel yellow to brownish; face and lunule dirty yellow in ON specimens; gena (excluding ventral margin), parafacial (excluding inner margin) and anterior margin of postgena light brown in female; postpronotum and notopleuron yellowish in part; lateral and sometimes apical margins of scutellum and postsutural scutum yellow in females and some males. Pleuron paler brown with venter darker and posterior region yellowish; metanotum yellow with brown mottling and dark brown mediotergite; males sometimes darker. Calypter margin and hairs white. Legs yellow with faint brownish tint; tarsi sometimes paler and femora sometimes slightly darker. Abdomen brownish yellow, paler in female with dorsum sometimes brownish and oviscape brown. Genitalia: (Figs 175 - 178) Surstylus indistinct, fused to epandrium; inner surface with many small, rounded tubercle-like setae not reaching anterior corner. Hypandrium relatively narrow with apex pointed; inner lobe small, rounded and with large separate medial sclerite closely associated with postgonite. Postgonite large and flat with partial fusion to hypandrial band; with sparse hairs on outer face. Halves of basiphallus flat, wide and poorly sclerotised; apices broad, converging past internal subapical fold. Distiphallus very large, resembling a thick band with anterior and posterior margins strongly curled outwards; basal portion with small, shallow lateral sculpturing. Ejaculatory apodeme well-developed basally, but reduced, thin and pale apically.	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
0E4C8A0B45DD28C29E367B8475D1BEF3.taxon	distribution	Distribution. Canada: ON, QC *. USA: CA, VA *.	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
0E4C8A0B45DD28C29E367B8475D1BEF3.taxon	materials_examined	Additional material examined. Canada. ON: Hawkeston, 28. vi. 1927, C. H. Curran, CNC 353079 (1 ♂, CNC); Mer Bleu [e], 5 mi E Ottawa, 9. vi. 1966, D. D. Munroe, CNC 353082 (1 ♂, CNC), Ottawa, Montfort Hosp., 17. vii. 1993, J. R. Vockeroth, CNC 353074 (1 ♂, CNC), Ottawa, 18. viii. 1924, G. S. Walley, CNC 353081 (1 ♀, CNC), damp second-growth Acer - Betula woods, 17. viii. 2000, J. R. Vockeroth, CNC 353075 (1 ♀, CNC), 30. v. 1958, J. R. Vockeroth, CNC 353078 (1 ♂, CNC), 30. vi. 1958, J. R. Vockeroth, CNC 353080 (1 ♂, CNC); damp second-growth Acer - Betula woods, 6. viii. 1996, J. R. Vockeroth, CNC 353073 (1 ♂, CNC), QC: Burnett, 13. viii. 1977, J. O'Hara, CNC 353076 (1 ♀, CNC), Old Chelsea, 11. vi. 1959, J. R. Vockeroth, CNC 353077 (1 ♀, CNC). USA. VA: nr. Plummers Island, 20. v. 1914, R. C. Shannon (1 ♂, USNM), Giles Co., Ripplemead, White Riverbend Pk., 37 ° 19 ' N, 80 ° 41 ' W, 9. v. 2006, S. A. Marshall (1 ♀, DEBU), Fairfax Co., Great Falls Park, quarry, 38 ° 59.1 ' N, 77 ° 14.8 ' W, Malaise trap, D. R. Smith, 24. iv- 2. v. 2007 (4 ♀, USNM), 3 - 10. v. 2007 (12 ♀, USNM).	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
F82C883350F0FAD16677E5D6B12A54B9.taxon	description	Description (von Tschirnhaus 2017: figs 6 - 9). Wing length 3.4 mm (♂). Female unknown. Length of ultimate section of vein M 4 divided by penultimate section: 0.4. Eye height divided by gena height: 4.5. Ocellar triangle not much larger than tubercle. Orbital plate narrow, inner margin weakly defined. Epistoma present, margin straight, as long as width of first flagellomere. Ventral margin of gena relatively straight, shallow anteriorly and deep posteriorly. Scutum densely matt. Costa extending to M 1. Tibiae without medial setae Chaetotaxy: Ocellar and postvertical setae strong. Two ori (three ori on right side), decreasing in length anteriorly; two ors. Minute interfrontals anteromedially on frons. Four dorsocentral setae on left side, five on right, decreasing in length anteriorly. Acrostichal seta strong. Acrostichal setulae in six irregular rows. Two or three anepisternal setae, four or five katepisternals. Colouration: Setae dark brown. Mostly dark brown. Face, parafacial, gena and postgena (to point above midpoint of eye) and mouthparts yellowish white with dark brown line along venter of gena; lunule and antenna pale yellow with arista brown; frons light yellow with brownish / orange tint, with ocellar triangle and posterolateral corner of frons dark brown, faded brownish region around ocellar triangle, with brownish stripe along orbital plate almost to base of posterior ori, becoming indistinct anteriorly. Apices of femora and bases of tibiae narrowly yellow. Halter white with stem faintly brownish anteriorly. Calypter margin and hairs brown. Genitalia: (von Tschirnhaus 2017: figs 1 - 3, 5) Cercus large, bent on outer margin and straight on inner; inner-distal surface with numerous pointed tubercle-like setae. Surstylus fused to epandrium, indistinct, without tubercle-like setae. Hypandrium subtriangular; apex rounded with narrow, pointed apodeme that may be 2 x as long as wide; inner lobe with basal section narrowing to point of attachment to thicker, angled distal section bearing row of several sockets, one of which has a moderately long seta. Postgonite with minute setulae in irregular double row; shape presumably similar to that of A. aristata. Phallophorus narrow, width <1 / 3 length. Basiphallus dorsally fused to phallophorus on narrow dorsal / left lateral sclerite, which is apically truncated; right lateral sclerite much narrower, but as long as left sclerite. Paraphallus and hypophallus absent. Ejaculatory duct becoming broader along length of basiphallus, thick along mesophallus. Mesophallus a single band-like ventral sclerite partially fused to distiphallus; nearly as long as basiphallus, strongly curved to form a shallow semicircle. Distiphallus very shallow, band-like, and ventrally curved, obliquely angled. Ejaculatory apodeme unknown.	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
F82C883350F0FAD16677E5D6B12A54B9.taxon	distribution	Distribution. USA: CT, NY, WV.	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
F82C883350F0FAD16677E5D6B12A54B9.taxon	materials_examined	Other material. USA. WV: Morgan County ca. 6 mi NW Hedgesville, 39 ° 37 ' N, 78 ° 03 ' W, ex twig swelling gall Celtis occidentalis, coll. 6 - v- 1998, em. 15 - iii- 1999, R. J. Gagne (1 ♂, USNM). [not examined]	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
ECD5EC681AE681BDEA5975053A783970.taxon	description	Figs 179 - 182	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
ECD5EC681AE681BDEA5975053A783970.taxon	description	Description. Wing length 2.9 - 3.3 mm (♂), 2.9 - 3.8 mm (♀). Length of ultimate section of vein M 4 divided by penultimate section: 0.6 - 0.8. Eye height divided by gena height: 6.1 -- 9.7. First flagellomere sometimes slightly longer than high; with teardrop-shaped tuft of pale hairs at apex. Chaetotaxy: Two ori; two ors. Three or four dorsocentrals, decreasing in length anteriorly. Mid tibia with two or three posteromedial setae. Colouration: Setae black. Body yellow, except as follows: head mostly dark brownish with yellow tint, with mouthparts light yellow, lunule yellow, fronto-orbital plate (narrow) sometimes yellowish to yellow, gena (excluding ventral margin) and face light brown, and ocellar tubercle sometimes yellowish around base of ocellar and postocellar setae; postpronotum, notopleuron and scutellum pale yellow / whitish; halter white; female with oviscape dark brown and face yellow. Calypter margin and hairs white. Genitalia: (Figs 179 - 182) Surstylus not distinguishable from epandrium; inner face of surstylus flat and covered with numerous small, rounded tubercle-like setae that do not extend to anterior corner. Postgonite relatively large, flat, and broad. Halves of basiphallus long and narrow, with right sclerite bent at midpoint; apices not bent inwards. Hypophallus convoluted and with scalloped apical fringe and irregularly sclerotised base. Mesophallus subcylindrical, with sides bulging and with transverse dorsal band; closely associated with distiphallus, which is bulging medially, truncated apically and with subapical constriction.	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
ECD5EC681AE681BDEA5975053A783970.taxon	distribution	Distribution. Canada: ON. USA: IA, IL, IN, IN, MA, MD *, NC, NY, OH, TN, VA, VT.	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
ECD5EC681AE681BDEA5975053A783970.taxon	materials_examined	Additional material examined. Canada. ON: Simcoe, 26. vi. 1939, G. E. Shewell, CNC 352873 (1 ♀, CNC). USA. OH: Delaware Co., Sunbury, Monkey Hollow Rd., 13 - 15. ix. 2014, ex. Laportea canadensis, em. 16 - 24. x. 2014, C. S. Eiseman, # CSE 1432, CNC 384847, CNC 384848 (1 ♂ 1 ♀, CNC), IA: Ames, Pammel Woods, W. H. Robinson, 24. vi. 1970 (2 ♂, USNM), 9. viii. 1969 (1 ♂, USNM), 19. vi. 1970 (1 ♂, USNM), Ames, Pammel Woods, 11. vi. 1970, R. M. Miller (1 ♀, USNM), Ames, 1. viii. 1969, W. H. Robinson (1 ♂, USNM), Allamakee Co., 3 mi ESE Waterville, 43 ° 11.0 ' N, 91 ° 14.1 ' W, 2. viii. 1960, J. Laffoon (1 ♂, USNM), Boone Co., Ledges State Park, 14. vii. 1971, R. M. Miller (1 ♀, USNM), IL: University of Illinois Woods, 2. vii. 1945, " X 526 " (1 ♂, USNM), 15. vii. 1945, " X 527 " (1 ♂, USNM), MD: Montgomery Co., Dickerson, 14. vii. 1974, G. Foster (1 ♂, USNM), OH: Delaware Co., Sunbury, Monkey Hollow Rd., 13 - 15. ix. 2014, em. 16 - 24. x. 2014, C. S. Eiseman, ex Laportea canadensis, # CSE 1432, CNC 384847, CNC 384848 (1 ♂ 1 ♀, CNC), NC: Graham Co., Poplar Cove, 2500 ', 35 ° 21.3 ' N, 83 ° 56.1 ' W, 20. vi. 1958, J. Laffoon (1 ♀, USNM), NY: Ithaca, 15. vi. 1932 (1 ♀, USNM), TN: Davidson Co., Nashville, West Meade Waterfall (36.094655, - 86.913252), 21. viii. 2017, em. 15 - 17. ix. 2017, C. S. Eiseman, ex Laportea canadensis, # CSE 4273, CNC 939958 - 939960 (1 ♂ 2 ♀, CNC), VA: Fairfax Co., Dead Run, 28. vii. 1915, R. C. Shannon (1 ♀, USNM).	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
1FAECAA426D3C71608450D2C7B3D1F31.taxon	description	Figs 232 - 235	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
1FAECAA426D3C71608450D2C7B3D1F31.taxon	description	Description. Externally as described for A. bispinata except as follows: Wing length 2.5 - 2.6 mm (♂). Female unknown. Length of ultimate section of vein M 4 divided by penultimate section: 0.6. Eye height divided by gena height: 4.2. First flagellomere always enlarged in male, broadly ovate, slightly longer than high and covered with long hairs past base. Additional ori sometimes present on one side of frons. Wing veins yellow. Antenna orange with brownish tint, mostly brownish past base of first flagellomere; frons tinted with orange; fore tibia yellow with centre brownish. Genitalia: (Figs 232 - 235) Surstylus large and triangular with numerous long spines along inner margin and with one spine at apex; basal suture obliterated, inner surface flat and easily viewed posteriorly. Hypandrium and postgonite as described for A. bispinata. Halves of basiphallus with medial membranous process that is longer and truncated on right side. Distiphallus of " Agromyza nigripes - type " (capsule-shaped with subbasal opening for entry of ejaculatory duct, pronounced dorsobasal collar, and medial convolution); ventral curve with dark truncated elbow; ventral surface with medial longitudinal suture; sides shallowly rounded and internally spinulose subapically.	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
1FAECAA426D3C71608450D2C7B3D1F31.taxon	distribution	Distribution. USA: MD, TN, VA.	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
1FAECAA426D3C71608450D2C7B3D1F31.taxon	etymology	Etymology. Gr., referring to the characteristic spiny surstylus.	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
FC9B9AC2AB6F4149AA7A079792CCACD7.taxon	description	Figs 183 - 187	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
FC9B9AC2AB6F4149AA7A079792CCACD7.taxon	description	Description (from Eiseman and Lonsdale 2018). Wing length 2.3 mm (♂). Female unknown. Length of ultimate section of vein M 4 divided by penultimate section: 1.0. Eye height divided by gena height: 3.9. First flagellomere small and rounded, without pale tuft of hairs. Fronto-orbital plate slightly projecting (more so anteriorly). Ocellar triangle small and rounded. Thorax with light pruinosity. Chaetotaxy: Two ori; two ors. Three strong dorsocentrals, anterior seta 2 / 3 length of second. Mid tibia without posteromedial setae. Colouration: Setae black. Body mostly dark brown. Head yellowish orange with first flagellomere infuscated on distal 2 / 3, back of head and occiput dark brown, frons dark brown behind level of hind fronto-orbital, face white and clypeus brown to dark brown. Calypter margin and hairs brown. Halter white. Tarsi, base of fore tibia and apex of fore femur yellow. Genitalia: (Figs 183 - 187) Surstylus small, lobate, setulose, and slightly angled anteriorly; fused to anteroventral margin of epandrium with suture partially evident. Cercus broad and emarginate apically; inner surface covered with numerous small tubercle-like setae. Postgonite small and rounded with shallow inner lobe. Single sclerite of basiphallus fused to phallophorus on left side, twisted dextrally; distal margin forming small transverse sclerite. Mesophallus small and flat. Distiphallus composed of a single dark, flat, curved sclerite (shortest dorsally) nearly forming a complete tube; lateral margins fringed and not meeting ventrally.	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
FC9B9AC2AB6F4149AA7A079792CCACD7.taxon	distribution	Distribution. USA: IA, MD, OK, WI.	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
62EF3AE9C3C488309FA07C11545A24BA.taxon	description	Figs 188 - 192	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
62EF3AE9C3C488309FA07C11545A24BA.taxon	description	Description. Wing length 2.3 mm (♂), 2.5 - 2.7 mm (♀). Length of ultimate section of vein M 4 divided by penultimate section: 0.7. Eye height divided by gena height: 4.8 - 7.5. First flagellomere small and rounded; without pale tuft of apical hairs. Ocellar triangle only indicated laterally as subshiny regions. Chaetotaxy: Two ori; two ors. Four strong dorsocentrals, one presutural. Mid tibia with one posteromedial seta. Colouration: Setae golden-brown, distinct from scutum. Scutum with brownish grey pruinosity. Calypter margin and hairs white (brown in Agromyza isolata holotype). Body predominantly brown with halter white; base of first flagellomere and most of pedicel distinctly orange, entirely dark in Agromyza isolata holotype; BC, CA, and CO material with first flagellomere dark, with basal margin slightly lighter; tarsi, tibiae (hind tibia brownish medially) and apices of femora yellow. Wing veins light brown. Genitalia: (Figs 188 - 192) Surstylus broad, not distinct from epandrium and with a number of medial tubercle-like setae along inner-distal margin on posterior 1 / 2. Hypandrium relatively narrow with long, tapered tip. Postgonite small and dome-like. Phallophorus elongate and produced on left side, fusing with single sclerite of basiphallus. Basiphallus short, shallowly curved and restricted to dorsal surface. Mesophallus curved in cross-section, dark, and with long, bifid, tapering " tail ", with bases either separated or fused; distiphallus short, dark, and cap-like. Ejaculatory apodeme relatively small, blade pale.	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
62EF3AE9C3C488309FA07C11545A24BA.taxon	distribution	Distribution. Canada: AB, BC *, ON, NS *, QC, SK. USA: CA, CO, MN [leaf mine only], PA, VA *, VT, WA.	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
62EF3AE9C3C488309FA07C11545A24BA.taxon	materials_examined	Additional material examined. Canada. BC: Terrace, grass, clover and buttercups, 7. vi. 1960, R. Pilfrey, sweeping, CNC 353092 (1 ♂, CNC), Wasa Lk., em. 29. vii. 1959, " 59 - 6779 - 01 ", " Populus trichocarpa ", " R'rd ", CNC 353083, CNC 353084 (2 ♂ [with puparia], CNC), NS: S. Harbour Bch., PG 962943, 6. vii. 1983, J. R. Vockeroth, CNC 353091 (1 ♂, CNC), ON: Grand Bend, 20. vii. 1939, G. E. Shewell, CNC 353089 (1 ♂, CNC), Ottawa, 15. ix. 1997, J. R. Vockeroth, CNC 353090 (1 ♂, CNC), 16. ix. 1952, CNC 353088 (1 ♀, CNC). USA. CO: Doolittle Ranch, Mt. Evans, 2987 m, 3. viii. 1961, C. H. Mann, CNC 353085 (1 ♂, CNC), J. G. Chillcott, CNC 353087 (1 ♀, CNC), Summit L. Flats, Mt. Evans, 3901 m, 24. vii. 1961, C. H. Mann, CNC 353086 (1 ♂, CNC), VA: Falls Church, reared 25. v. 1916, Populus, host: underside tentminer, J. J. deGryse (1 ♂ 2 ♀, USNM), VT: Chittenden Co., South Burlington, Winooski Gorge, 29. vi. 2014, ex. Populus tremuloides, em. 15. vii. 2014, C. S. Eiseman, # CSE 1176, CNC 384839 - 384841 (3 ♂, CNC), Chittenden Co., Williston, Mud Pond, 28. viii. 2016, C. S. Eiseman, Populus grandidentata, em. 18 - 19. ix. 2016, # CSE 3000, CNC 654500 - 654504 (2 ♂ 3 ♀, CNC).	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
FEF1934FCEEB0CB907A26497A0F82BDA.taxon	description	Figs 39, 40, 193 - 197	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
FEF1934FCEEB0CB907A26497A0F82BDA.taxon	description	Description (Figs 39, 40). Wing length 3.6 - 4.0 mm (♂), 3.9 - 4.3 mm (♀). Length of ultimate section of vein M 4 divided by penultimate section: 0.7 - 0.8. Eye height divided by gena height: 2.9 - 3.2. First flagellomere small and rounded with small apical tuft of pale hairs. Ocellar triangle 1 / 2 length of frons, shape equilateral or more tapered apically. Buccal cavity subquadrate and clypeus broad. Costa only extending to R 4 + 5. Thorax with light pruinosity. Chaetotaxy: Two ori; two ors. Four postsutural dorsocentrals, one presutural, decreasing in length anteriorly. Mid tibia with two posteromedial setae. Colouration: Body dark brown with halter white. Gena slightly paler posteriorly. Fore tarsus, apex of fore femur and base of tibiae yellowish. Wing veins light brown. Calypter margin and hairs white. Female fronto-orbital plate slightly paler and less pruinose. Genitalia: (Figs 193 - 197) Surstylus not strongly differentiated from epandrium, which has deep desclerotised anteroventral emargination; with numerous posterior and medial tubercle-like setae and with rounded inner-distal point bearing several small setae. Hypandrium gently arched, not produced apically; inner lobe largely membranous and with two furrows ending in one setula each. Postgonite small, flat and lobate. Halves of basiphallus folded inwards near apex; right sclerite shorter and fused to enlarged distal margin of phallophorus. Distiphallus of " Agromyza nigripes - type " (capsule-shaped with subbasal opening for entry of ejaculatory duct, pronounced dorsobasal collar, and medial convolution); distal portion dark and extremely elongate with wide ventral furrow (dark medial ridge within furrow); inner surface with pronounced spinulose ridge; dorsal surface covered by dark membranous sheath. Ejaculatory apodeme broad and well-developed with distal margin pale and rib pronounced.	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
FEF1934FCEEB0CB907A26497A0F82BDA.taxon	distribution	Distribution. Canada: AB, BC, MB, NL, NS, YT. USA: AK, CA, CO, IA *, NC *, NY *, TN, UT.	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
FEF1934FCEEB0CB907A26497A0F82BDA.taxon	materials_examined	Additional material examined. Canada. AB: Banff, Johnston Canyon, 1432 m, 18. vii. 1962, K. C. Herrmann, CNC 352900, CNC 352937 (1 ♂, 1 ♀, CNC), 30 - 31. vii. 1962, CNC 352938 (1 ♀, CNC), Banff, 19. vii. 1922, E. Hearle, CNC 353102 (1 ♂, CNC), Calgary, 20 mi W, Jumping Pd. Cr., 9. viii. 1962, K. C. Hermann, CNC 352901 (1 ♂, CNC), Wate [illegible], 15. vii. 1923, H. L. Seamans, CNC 352903 (1 ♂, CNC), BC: Bowser, 8. vi. 1955, R. Coyles, CNC 352936 (1 ♀, CNC), Kleanza Cr., 14 mi E Terrace, 4. vii. 1960, C. H. Mann, CNC 352942 (1 ♀, CNC), Mt. Thornhill nr. Terrace, 1066 m, in boggy seepage area, 14. vii. 1960, J. G. Chillcott, CNC 352933 (1 ♀, CNC), Pr. Rupert, Ledum - Kalmia bog, 4. iv. 1960, R. Pilfrey, CNC 352935 (1 ♀, CNC), 4. vi. 1960, C. H. Mann, CNC 352896, CNC 352897 (2 ♂, CNC), Robson, 24. v. 1950, H. R. Foxlee, CNC 352928 (1 ♀, CNC), Summit Lake, Mi 392 Alaska Hwy., 1280 m, 31. vii. 1959, R. E. Leech, CNC 352898 (1 ♂, CNC), Summit Lake, 1280 m, 21. vii. 1959, R. E. Leech, CNC 352899 (1 ♂, CNC), Terrace, Airport area, 4. viii. 1960, C. H. Mann, CNC 352934 (1 ♀, CNC), Terrace, 11. viii. 1960, W. R. Richards, CNC 352895 (1 ♂, CNC), 67 m, 15. viii. 1960, B. Heming, CNC 352929 (1 ♀, CNC), 67 m, 8. vi. 1960, W. W. Moss, CNC 352932 (1 ♀, CNC), 19. vii. 1960, C. H. Mann, CNC 352931 (1 ♀, CNC), 20. vii. 1960, W. R. Richards, CNC 352885 (1 ♂, CNC), 31. iv. 1960, R. J. Pilfrey, CNC 352894 (1 ♂, CNC), 31. v. 1960, C. H. Mann, CNC 352930 (1 ♀, CNC), 31. vi. 1960, J. G. Chillcott, CNC 353099 (1 ♂, CNC), MB: Churchill, 14. vii. 1952, E. F. Pope, CNC 352939 (1 ♀, CNC), Churchill, 58 ° 46 ' N, 94 ° 10 ' W, 5. viii. 1952, J. G. Chillcott, project # NBP, CNC _ Diptera 59120 (1 ex, CNC), Deer River, mile 473 m Hudson Bay Ry., 3. viii. 1952, J. G. Chillcott, CNC 352886 (1 ♂, CNC), Int. Peace Gardens, Turtle Mtn. For. Res., 7. viii. 1958, J. G. Chillcott, CNC 352940 (1 ♀, CNC), NL: Bell Is., 4 - 7. viii. 1967, J. F. McAlpine, CNC 353108 (1 ♂, CNC), Lab., Cartwright, 20. vii. 1955, E. F. Cashman, CNC 352941 (1 ♀, CNC), St. John's, Agric. Exp. Sta., 1. viii. 1967, J. F. McAlpine, CNC 353111 - 353113, CNC 353117 (4 ♂, CNC), 15. vii. 1967, J. F. McAlpine, CNC 353126 (1 ♂, CNC), 16. vii. 1967, J. F. McAlpine, CNC 353124, CNC 353110 (1 ♂, 1 ♀, CNC), on Ranunculus, 18. vii. 1967, J. F. McAlpine, CNC 353103 - 353107 (5 ♂, CNC), Abies balsamea, 19. vii. 1967, J. F. McAlpine, CNC 353109 (1 ♀, CNC), 21. vii. 1967, J. F. McAlpine, CNC 353131, CNC 353135 (2 ♂, CNC), 24. vii. 1967, J. F. McAlpine, CNC 353119 (1 ♀, CNC), 26. vii. 1967, J. F. McAlpine, CNC 353133 (1 ♂, CNC), 27. vii. 1967, J. F. McAlpine, CNC 353128 (1 ♂, CNC), 29. vii. 1967, J. F. McAlpine, CNC 353120, CNC 353129 (1 ♂, 1 ♀, CNC), 3. viii. 1967, J. F. McAlpine, CNC 353114 - 353116 (3 ♂, CNC), 30. vii. 1967, J. F. McAlpine, CNC 353121, CNC 353125 (1 ♂, 1 ♀, CNC), 31. vii. 1967, J. F. McAlpine, CNC 353130 (1 ♂, CNC), 9. viii. 1967, J. F. McAlpine, CNC 353118, CNC 353122, CNC 353123, CNC 353127, CNC 353132, CNC 353134, CNC 353136 (4 ♂, 3 ♀, CNC), NS: Lockeport, Cranberry I., 24. vii. 1958, J. R. Vockeroth, CNC 352902 (1 ♂, CNC), YT: Ogilvie Mts., North Fork Crossing, 1. vii. 1962, P. J. Skitsko, CNC 352893 (1 ♂, CNC), Rampart House, 67 ° 25 ' N, 140 ° 59 ' W, 17. vii. 1951, J. E. H. Martin, project # NBP, CNC _ Diptera 109349 (1 ♀, CNC), Whitehorse, 24. viii. 1959, R. Madge, CNC 352926, CNC 352927 (2 ♀, CNC). USA. AK: Anchorage, 18. vii. 1951, R. S. Bigelow, CNC 352915 (1 ♀, CNC), Cold Bay, on tundra, 18. viii. 1952, W. R. M. Mason, CNC 352892 (1 ♂, CNC), Curry, 29. vi. 1952, W. R. Mason, CNC 352914 (1 ♀, CNC), King Salmon, Naknek, 13. vii. 1952, J. B. Hartley, CNC 352921, CNC 352923, CNC 352925 (3 ♀, CNC), 16. viii. 1952, CNC 352919 (1 ♀, CNC), 3. vii. 1952, CNC 352917 (1 ♀, CNC), 31. vii. 1952, CNC 352924 (1 ♀, CNC), 5. viii. 1952, CNC 352916 (1 ♀, CNC), 6. vii. 1952, CNC 352918, CNC 352920, CNC 352922 (3 ♀, CNC), Mile 315 Richard. Hwy., 8. vi. 1951, W. R. Mason, CNC 352913 (1 ♀, CNC), Naknek, 18. vii. 1952, J. B. Hartley, CNC 352910, CNC 352911 (2 ♀, CNC), 8. vii. 1952, J. B. Hartley, CNC 352907 (1 ♀, CNC), W. R. Mason, CNC 352912, CNC 352908, CNC 352909 (3 ♀, CNC), CO: Doolittle Ranch, Mt. Evans, 2987 m, 22. vii. 1961, J. G. Chillcott, CNC 352905 (1 ♀, CNC), 3. viii. 1961, W. R. M. Mason, CNC 352888 (1 ♂, CNC), B. H. Poole, CNC 352906 (1 ♀, CNC), Echo L., Mt. Evans, 3230 m, 25. vii. 1961, C. H. Mann, CNC 352904 (1 ♀, CNC), IA: Ames, 10. v. 1947, A. R. Brooks, CNC 352943 (1 ♀, CNC), NC: Gt. Smokies, Clingmans Dome, A. L. Melander, 18. vii. 1941 (4 ♂ 3 ♀, USNM), 19. vii. 1941 (4 ♂, USNM), 21. vi. 1941 (1 ♂, USNM), Smokies, Andrews Bald, 9. vii. 1941, A. L. Melander (2 ♂ 1 ♀, USNM), Smokies, Forney Ridge, 26. vi. 1941, A. L. Melander (1 ♂, USNM), Clingman's Dome, Grt. Sm. Mt. Nat. Park, 6. viii. 1957, C. J. Durden, CNC 352891 (1 ♂, CNC), 2011 m, 22. viii. 1957, J. G. Chillcott, CNC 352887 (1 ♂, CNC), NY: White Face Mt., 4000 ', 14. vii. 1958, A. L. Melander (1 ♂, USNM), TN: Indian Gap to Clingman's Dome, Gr. Sm. Mt. Nat. Park Tenn., 1584 - 2011 m, 6. viii. 1957, J. G. Chillcott, CNC 352889, CNC 352890 (2 ♂, CNC).	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
0D28691E139C8883E2E57B9F941DE77A.taxon	description	Description. Wing length 2.3 - 2.4 mm (♀). Male unknown. Length of ultimate section of vein M 4 divided by penultimate section: 0.6. Eye height divided by gena height: 1.6. Head as described for A. aristata except parafacial not as strongly projecting and ocellar seta 1 / 2 length of postocellar seta. Chaetotaxy: As described for A. aristata, except there are four dorsocentrals (one presutural), not three. Colouration: As described for A. aristata except as follows: setae yellow; first flagellomere yellow with basal 1 / 3 very pale; posterolateral corner of frons only dark to level of posterior (not anterior) ors. Variation: Florida specimen (head mostly collapsed) with ocellar seta ~ 2 / 3 length of postocellar and fronto-orbital plate brown to base of anterior fronto-orbital.	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
0D28691E139C8883E2E57B9F941DE77A.taxon	distribution	Distribution. Canada: ON *. USA: DC, FL *.	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
0D28691E139C8883E2E57B9F941DE77A.taxon	materials_examined	Additional material examined. Canada. ON: Ottawa, Arboretum, adult on Celtis occidentalis, 27. v. 2017, O. Lonsdale, CNC 799468 - 799471 (4 ♀, CNC). USA. FL: Torreya St. Park, 29. iv. 1952, O. Peck, on wood mud flat, CNC 352944 (1 ♀, CNC).	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
1D83132A67E214C58A52B214F5322CA9.taxon	description	Figs 198 - 204	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
1D83132A67E214C58A52B214F5322CA9.taxon	description	Description. Wing length 2.5 - 2.7 mm (♂), 2.4 - 2.7 mm (♀). Length of ultimate section of vein M 4 divided by penultimate section: 0.6 - 0.8. Eye height divided by gena height: 3.5 - 6.7. First flagellomere small and rounded; males with small tuft of apical hairs (as wide as base of arista in specimens with entirely white calypter, and several times width of base of arista in males with darker calypter hairs); females with dark calypter also with wide tuft of hairs on first flagellomere. Ocellar triangle short and equilateral in female, longer in male. Scutum shiny to subshiny. Chaetotaxy: Two ori (sometimes small to well-developed additional anterior ori on one side); two ors. Two well-developed dorsocentrals and one or two much smaller setae anteriorly. Mid tibia with two posteromedial setae. Colouration: Body dark brown with halter white, lunule and gena (excluding ventral margin) paler, tarsi dirty yellow and tibiae sometimes yellow at base. Wing veins light brown. Calypter margin white with hairs brown to white. Genitalia: (Figs 198 - 204) Surstylus with weak basal suture and numerous small medial and apical tubercle-like setae on inner margin. Inner lobe of hypandrium broad with several furrows leading to empty sockets. Postgonite small and lobate. Both sclerites of basiphallus with thin mediolateral membranous lobes; apices typically incurved. Distiphallus of " Agromyza nigripes - type " (capsule-shaped with subbasal opening for entry of ejaculatory duct, pronounced dorsobasal collar, and medial convolution); distiphallus split ventromedially with dark subbasal swelling and central ridge; with spinulose inner structures and minute anterodorsal scales; seen ventrally, sides nearly parallel or segment narrowest apically (mostly in specimens with white calypter hairs).	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
1D83132A67E214C58A52B214F5322CA9.taxon	distribution	Distribution. USA: CT *, DC *, IA, MA, MD *, NC, NH *, NJ *, NY *, TN.	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
1D83132A67E214C58A52B214F5322CA9.taxon	materials_examined	Additional material examined. USA. CT: Putnam Park, 20. vii. 1939, A. L. Melander (1 ♂, USNM), Redding, 3. vi. 1935, A. L. Melander (2 ♀, USNM), DC: 11. vi. 1926, J. M. Aldrich (1 ♂, USNM), IA: Allamakee Co., Footbridge Farm, 22. vii. 2018, J. van der Linden, Poaceae, em. by 14. viii. 2018, # CSE 4946, CNC 1643675 - 1643677 (2 ♂ 1 ♀, CNC), MA: Concord, 17. vii. 1961, W. W. Wirth (2 ♂ 1 ♀, USNM), Lavale, 9. v. 1970, G. Steyskal (1 ♂, USNM), Hampshire Co., Pelham, Arnold Rd., 2. vii. 2013, C. S. Eiseman, ex Dichanthelium clandestinum em. 20 - 22. vii. 2013, # CSE 724, CNC 392666, CNC 392667 (1 ♂, 1 ♀, CNC), em. 20 - 23. iv. 2014, # CSE 1089, CNC 384728, CNC 384729 (2 ♀, CNC), Plymouth Co., West Bridgewater, Maple St., 15. viii. 2013, C. S. Eiseman, ex Dichanthelium clandestinum em. 2 - 5. ix. 2013, # CSE 866, CNC 392683 - 392687 (2 ♂ 3 ♀, CNC), MD: Colesville, W. W. Wirth, 4. vi. 1977 (1 ♂, USNM), 1. viii. 1976 (1 ♀, USNM), Bethseda, G. Steyskal, 12. ix. 1981 (1 ♂, USNM), 14. v. 1981 (1 ♀, USNM), Plummers Isl., at light, 3. viii. 1915, R. C. Shannon (1 ♂, USNM), nr. Plummers Isl., 14. v. 1915, R. C. Shannon (1 ♀, USNM), Montgomery Co., Carderock Park, 18. v. 1989, M. J. and R. Molineaux (1 ♀, USNM), NC: Chatham Co., Haywood, 5. vi. 1986, G. C. Steyskal (1 ♂, USNM), Durham Co., Durham, 17 - Acre Wood Preserve, 36 ° 1 ' 27.82 " N, 78 ° 55 ' 29.73 " W, 8. v. 2017, T. S. Feldman, Dichanthelium, em. 4. v. 2018, # CSE 4482, CNC 1135677, CNC 1135678 (1 ♂ 1 ♀, CNC), Scotland Co., Laurinburg, St. Andrews University, 10. v. 2017, T. S. Feldman, Dichanthelium, em. 6 - 14. v. 2018, # CSE 4502, CNC 1144099, CNC 1144100 (1 ♂ 1 ♀, CNC), Wake Co., Morrisville, Lake Crabtree County Park, 35 ° 50 ' 37.77 " N, 78 ° 47 ' 43.02 " W, 6. vi. 2018, T. S. Feldman, Dichanthelium scoparium, em. 25. vi. 2018, # CSE 4695, CNC 1135686 (1 ♂, CNC), NH: White Mts., Stinson Lake, 23. vii. 1961, W. W. Wirth (1 ♀, USNM), NJ: Lakehurst, 1. vi. 1962, J. E. Puleston (1 ♂, USNM), NY: Bear Mt., 30. v. 1941, A. L. Melander (1 ♀, USNM).	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
7A5A7C1080AEB23847EF40750B9EACFC.taxon	description	Figs 205 - 209	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
7A5A7C1080AEB23847EF40750B9EACFC.taxon	description	Description. Wing length 2.5 - 2.7 mm (♂), 3.2 - 3.4 (♀). Length of ultimate section of vein M 4 divided by penultimate section: 0.7. Eye height divided by gena height: 2.5 - 2.8. First flagellomere slightly longer than high and broadly rounded, without apical tuft of pale hairs. Ocellar triangle relatively small and rounded. Chaetotaxy: Two ori; two ors. Two well-developed dorsocentrals and one smaller anterior seta. Mid tibia with two posteromedial setae. Colouration: Body dark brown with halter white, and gena and antenna sometimes slightly paler, with first flagellomere orange on inner-basal 1 / 3 and tarsi slightly paler. Calypter white with hairs dark brown; hairs sometimes yellowish in females. Genitalia: (Figs 205 - 209) Surstylus narrow and rounded, entirely fused to epandrium and with numerous medial tubercle-like setae. Hypandrium with broadly rounded subtriangular apex; inner lobe with membranous base and inner-distal emargination. Postgonite small and lobate. Halves of basiphallus interlocking at base and with inner margins dark; outer margin weakly sclerotised, wide, wing-like and pointed; distal section distinct with long processes flanking distiphallus. Hypophallus lobate with pointed medial process. Distiphallus of " Agromyza nigripes - type " (capsule-shaped with subbasal opening for entry of ejaculatory duct, pronounced dorsobasal collar, and medial convolution); distiphallus with dark enlarged sclerite above insertion of ejaculatory duct; distal section dark and elongate with medial suture and subapical texturing; transverse dorsobasal band produced ventrally. Ejaculatory apodeme with narrow rounded blade with numerous striations, long stem, and stout base.	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
7A5A7C1080AEB23847EF40750B9EACFC.taxon	distribution	Distribution. USA: TN, VA *.	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
7A5A7C1080AEB23847EF40750B9EACFC.taxon	materials_examined	Material examined. USA. VA: Fairfax Co., Turkey Run Park, nr. mouth of Turkey Run, 38 ° 57.9 ' N, 7 ° 09.4 ' W, Malaise trap, D. R. Smith, 25. v- 6. vi. 2006 (1 ♂ 4 ♀, USNM), 18 - 30. v. 2007 (3 ♂, USNM), Turkey Run Park, 0.3 km W mouth Turkey Run, 38 ° 58 ' N, 77 ° 09.6 ' W, Malaise trap, D. R. Smith, 17 - 24. v. 2006 (4 ♂ 1 ♀, USNM), river, 14 - 17. v. 2006 (4 ♂ 5 ♀, USNM), Great Falls Park, quarry, 38 ° 59.1 ' N, 77 ° 14.8 ' W, Malaise trap, 18 - 24. v. 2007, D. R. Smith (1 ♂ 3 ♀, USNM).	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
2F511CFF500499ADF555005B3862D30A.taxon	description	Figs 210 - 214	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
2F511CFF500499ADF555005B3862D30A.taxon	description	Description. Wing length 2.5 - 3.2 mm (♂), 2.6 - 2.9 mm (♀). Length of ultimate section of vein M 4 divided by penultimate section: 0.6 - 0.7. Eye height divided by gena height: 2.1 - 3.6. First flagellomere small and rounded with minute tuft of pale apical hairs. Fronto-orbital plate projecting and anterior 1 / 2 of frons soft and buckled. Chaetotaxy: Two ori (sometimes three on one side); two ors. Two dorsocentrals, sometimes with very small third seta present anteriorly. Two posteromedial setae on mid tibia. Colouration: Body mostly dark brown with orange tint, first flagellomere brown with base orange (more extensive on inner surface); frons brownish orange with ocellar triangle, posterior margin and fronto-orbital plate to level of anterior or posterior ors dark brown, sometimes dark laterally along entire margin of eye; lunule yellowish; parafacial beige and gena (excluding ventral margin) light brown; halter white; fore knee and tarsus yellowish. Calypter white with hairs light brown; uncommonly dark brown. Genitalia: (Figs 210 - 214) Surstylus visible laterally as small lobe; inner surface with more than a dozen tubercle-like setae. Hypandrium and postgonite as described for A. bispinata. Halves of basiphallus converging to base where both sclerites are fused to each other and phallophorus; with internal fold past midpoint and apices converging as broad triangular lobes. Distiphallus of " Agromyza nigripes - type " (capsule-shaped with subbasal opening for entry of ejaculatory duct, pronounced dorsobasal collar, and medial convolution); base of distiphallus narrow, distal portion broadly rounded, widest subapically and with internal spinulose processes. Ejaculatory apodeme well-developed with central rib visible near base; blade pale.	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
2F511CFF500499ADF555005B3862D30A.taxon	distribution	Distribution. Canada: BC, ON, QC (Zhu et al. 2004). USA: " Widespread, present in most states " (Frick 1959). Argentina, Cuba, Guadeloupe, Puerto Rico, Dominican Republic, Saint Vincent (Valladares 1998; Martinez and Etienne 2002).	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
2F511CFF500499ADF555005B3862D30A.taxon	materials_examined	Material examined. Canada. BC: Milner, 12. vii. 1953, G. J. Spencer, CNC 352949 (1 ♂, CNC), ON: Ottawa, Fletcher Wildlife Gardens, 45 ° 23 ' 7 " N, 75 ° 42 ' 11.01 " W, 9. vi. 2013, O. Lonsdale, CNC 1144190 (1 ♂, CNC), Ottawa, 8. vii. 1925, F. Ide, CNC 352950 (1 ♂, CNC), Point Pelee, 8. ix. 1954, C. D. Miller, CNC 352954, CNC 352955 (2 ♀, CNC), Simcoe, 26. vi. 1939, G. E. Shewell, CNC 352952 (1 ♂, CNC), 29. vi. 1939, CNC 352953 (1 ♂, CNC), St. Lawrence Is. Nat. Park, Grenadier I. Centre, 26. vi. 1975, H. C. W. Walther, Code 1 - 2406 - 25, CNC 352951 (1 ♂, CNC), Picton, 10. vii. 1970, J. F. McAlpine, CNC 353093 (1 ♂, CNC), QC: Ile de Montreal, 17. vi. 1966, Beaulieu, CNC 352956 (1 ♀, CNC). USA. AZ: Sunnyside Canyon, Huachua Mts., 9. vii. 1940, D. E. Hardy (1 ♂, USNM), DE: Wilmington, 31. vii. 1951, D. F. Bray (1 ♂, USNM), Sussex Co., Dewey Beach, 21. xiii. 2003, sweeping, K. Bennett (1 ♂, UDCC), IN: Lafayette 13. [?]. 1915, J. M. Aldrich (1 ♀, USNM), MA: Concord, vii. 1960, E. H. Wheeler, reared ex. Zea mays (2 ♂ 3 ♀, USNM), Franklin Co., Northfield, 276 Old Wendell Rd., 42 ° 38 ' 48.74 " N, 72 ° 25 ' 32.15 " W, 31. viii. 2017, C. S. Eiseman, Zea mays, em. 2 - 23. vi. 2018, # CSE 4580, CNC 1135703 - 1135712 (5 ♂ 5 ♀, CNC), MD: Montgomery Co., Colesville, Malaise trap, W. W. Wirth, 7. viii. 1975 (1 ♀, USNM), 14. vi. 1973 (1 ♂, USNM), 20. viii. 1975 (1 ♂, USNM), Bethseda, 6. viii. 1967, G. Steyskal (1 ♂, USNM), Colesville, 24. vii. 1974, W. W. Wirth (1 ♂, USNM), 4 mi SW of Ashton, Malaise trap, G. F. and J. F. Hevel, 3. ix. 1981 (1 ♂, USNM), 1. ix. 1981 (2 ♂, USNM), NY: L. I. Veg. Res. Fm, Riverhead, at light, 1 - 7. viii. 1938, 30. viii. 1938, 7 - 20. viii. 1938, CNC 352957, CNC 352958, CNC 352959, CNC 352960, CNC 352961, CNC 352962, CNC 352963, CNC 352964, CNC 352965, CNC 352966, CNC 352967, CNC 352968 (11 ♂ 1 ♀, CNC), TN: Nashville, G. G. Ainslie, Webster No. 9467 C (1 ♂ [with puparium], USNM), VA: Chain Bridge, 14. v. 1924, J. R. Malloch (1 ♀, USNM).	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
93542114D66EF7B7352A204DA26E9A71.taxon	description	Fig. 215	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
93542114D66EF7B7352A204DA26E9A71.taxon	description	Description. Wing length 2.2 - 2.4 mm (♂), 2.2 - 2.5 (♀). Length of ultimate section of vein M 4 divided by penultimate section: 0.6 - 0.7. Eye height divided by gena height: 2.8 - 3.4. First flagellomere small and rounded, sometimes with very small tuft of pale hairs apically. Scutum shiny. Chaetotaxy: Two ori (sometimes three on one side); two ors. Two well-developed dorsocentrals with smaller third seta anteriorly. Hind tibia with two posteromedial setae. Colouration: As described for A. parvicornis, except fronto-orbital plate usually brownish orange around base of all fronto-orbital setae. Genitalia: (Fig. 215) Genitalia as described for A. parvicornis except as follows: basiphallus short, only slightly longer than distiphallus; distal section of distiphallus narrow, with sides only slightly bulging subapically. Variation: MD male from Anne Arundel Co. with distal 2 / 5 of first flagellomere covered with pale hairs; genitalia as described above, but surstylus relatively small and spherical; distal 2 / 3 of first flagellomere dark and pedicel orange distally; frons dark brown. VA female with relatively large ovate distoventral patch of pale hairs on first flagellomere; body entirely dark with pedicel slightly paler, calypter entirely white, notopleuron and postpronotum reddish, and wing veins whitish on basal 1 / 2. The female is only tentatively allied with the MD male on the basis of similar dark colouration and the increased size of the pale haired patch on the first flagellomere.	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
93542114D66EF7B7352A204DA26E9A71.taxon	distribution	Distribution. Canada: MB. USA: DE *, FL, MA *, MD *, NY, VA (?).	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
93542114D66EF7B7352A204DA26E9A71.taxon	materials_examined	Additional material examined. USA. DE: Newark, 30. vii. 1974 (1 ♂, UDCC), Stanton, 8. viii. 1951, D. F. Bray (1 ♂, USNM), MA: Greenfield, 6. [?]. 1914, A. L. Melander (1 ♂, USNM), Wayland, 28. [?], J. J. Pratt, LT (1 ♂, USNM), MD: Bethseda, 12. ix. 1981, G. C. Steyskal (1 ♀, USNM), Colesville, 15. viii. 1975, Malaise trap, W. W. Wirth (1 ♂, USNM), Anne Arundel Co., nr. Edgewater, Smithsonian Envir. Res. Centre, 38 ° 53 ' N, 76 ° 33 ' W, 10. vii. 1993, G. F. Hevel (1 ♂, USNM), VA: Sherando Lake, 10 mi SW Waynesboro, 25. vi. 1970, L. V. Knutson (1 ♀, USNM).	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
47B4AB4AF98AE554B80BB68278D4B3A3.taxon	description	Figs 216 - 220	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
47B4AB4AF98AE554B80BB68278D4B3A3.taxon	description	Description. Wing length 2.4 - 2.6 mm (♂), 2.0 - 2.6 mm (♀). Length of ultimate section of vein M 4 divided by penultimate section: 0.7 - 0.9. Eye height divided by gena height: 4.8 - 4.9. First flagellomere small and ovate with small tuft of apical hairs in male. Ocellar triangle small and rounded (smaller in holotype). Scutum shiny. Chaetotaxy: Two ori (sometimes three on one side); two ors. Three dorsocentral setae with anterior seta reduced. Mid tibia with two posteromedial setae. Colouration: Body dark brown with orange tint; first flagellomere dark brown with faint orange tint towards base sometimes evident; lunule paler; parafacial sometimes with orange tint; halter white; tarsi and base of fore tibia yellow. Wing veins light brown. Calypter white with hairs usually brown (white in some females). Genitalia: (Figs 216 - 220) Genitalia largely as described for A. parvicornis, except as follows: basiphallus long and well-sclerotised, halves overlapping at base, weakened point present past midpoint and apex split with dark ventral branch; distiphallus narrow, with broad medial constriction and with elongate ventral sulcus below distomedial ridge; ejaculatory apodeme small with blade pale.	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
47B4AB4AF98AE554B80BB68278D4B3A3.taxon	distribution	Distribution. Canada: ON *. USA: AR, CT *, DC *, GA, MA, MD *, MN, NC, OH, OK, NY *, SC *, VA *.	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
47B4AB4AF98AE554B80BB68278D4B3A3.taxon	materials_examined	Additional material examined. Canada. ON: Algonquin Pk., 45 ° 50 ' 0 " N, 77 ° 38 ' 0 " W, 19. vii. 1991, J. R. Vockeroth, CNC 353094 (1 ♂, CNC), Metcalfe, 2 mi N, 15. v. 1982, B. E. Cooper, CNC 353095 (1 ♂, CNC), 10. vi. 1982, CNC 353097 (1 ♂, CNC), 25. v. 1982, CNC 353096 (1 ♂, CNC), Ottawa, damp second-growth forest in Acer - Betula wood, 27. vi. 1989, J. R. Vockeroth, CNC 353098 (1 ♂, CNC). USA. CT: Waterton, 5. vi. 1931, A. L. Melander (1 ♀, USNM), Putnam Park, A. L. Melander, 18. vii. 1939 (1 ♂, USNM), 20. vii. 1939 (1 ♂, USNM), 24. vii. 1939 (1 ♀, USNM), Redding, A. L. Melander, 26. vi. 1929 (1 ♂, USNM), 1. vi. 1929 (1 ♀, USNM), 10. vi. 1929 (1 ♀, USNM), 8. vi. 1930 (1 ♂ 2 ♀, USNM), 11. vi. 1929 (1 ♀, USNM), 27. vii. 1938 (1 ♀, USNM), DC: 11. vi. 1926, J. M. Aldrich (2 ♂, USNM), Chain Bridge, 8. v. 1928, J. M. Aldrich (1 ♂, USNM), Washington, 17. viii. 1913, A. L. Melander (2 ♂, USNM), MA: Concord, 17. vi. 1961, W. W. Wirth (1 ♂, USNM), Franklin Co., Northfield, 276 Old Wendell Rd., 4. vii. 2016, C. S. Eiseman, Dichanthelium acuminatum ssp. fasciculatum, em. 21. vii. 2016, # CSE 2787, CNC 654200 - 654202 (1 ♂ 2 ♀, CNC), MD: Bethseda, 30. v. 1980, G. C. Steyskal (1 ♀, USNM), Plummers Isl., 3. vi. 1914, R. C. Shannon (1 ♂, USNM), Montgomery Co., 4 mi S of Ashton, 24. vii. 1982, G. F. and J. F. Hevel (2 ♀, USNM), NC: Scotland Co., Laurinburg, St. Andrews University, 18. v. 2016, T. S. Feldman, Dichanthelium em. 13. vi. 2016, # CSE 2572, CNC 634813 - 634815 (3 ♂, CNC), Durham Co., Durham, 17 - acre Wood Preserve, 15. v. 2016, T. S. Feldman, Dichanthelium clandestinum, em. 4. vi. 2016, # CSE 2542, CNC 654303 - 654306 (4 ♂, CNC), Scotland Co., Laurinburg, St. Andrews University, 11. v. 2016, T. S. Feldman, Dichanthelium scoparium, em. 3. vi. 2016, # CSE 2540, CNC 653948, CNC 653949 (1 ♂ 1 ♀, CNC), NY: Lk. George, 26. vii. 1929, A. L. Melander (1 ♀, USNM), Yonkers, 3. vi. 1927, A. L. Melander (1 ♀, USNM), 5. vi. 1927 (1 ♀, USNM), Peekskill, 11. vi. 1927, A. L. Melander (1 ♂, USNM), Bear Mt., 31. v. 1941, A. L. Melander (1 ♂, USNM), OH: Hocking Co., South Bloomingville, Deep Woods Farm, 5. viii. 2016, C. S. Eiseman, Dichanthelium clandestinum, em. 20 - 22. viii. 2016, # CSE 2925, CNC 654480 - 654482 (1 ♂ 2 ♀, CNC), SC: Beaufort Co., Fripp Island, 26. ix. 1973, G. C. Steyskal (1 ♂, USNM), Highland Fall, 6. vii. 1941, A. L. Melander (1 ♀, USNM), Cobleskill, 11. viii. 1970, L. Knutson (1 ♀, USNM), VA: Glencarlyn, 23. v. 1925, J. R. Malloch (1 ♂, USNM), Falls Church, Holmes Run, 24. viii. 1960, light trap, W. W. Wirth (1 ♀, USNM), Rosslyn, 25. vi. 1913, R. C. Shannon (1 ♀, USNM), Fairfax Co., Great Falls Park, swamp trail, 38 ° 59.4 ' N, 77 ° 15.2 ' W, Malaise trap, trap # 1, 3 - 7. v. 2007, D. R. Smith (1 ♂, USNM).	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
D9FA11D5A2DB67470B1691E95BA0A9E9.taxon	description	Figs 221 - 224	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
D9FA11D5A2DB67470B1691E95BA0A9E9.taxon	description	Description (from Eiseman and Lonsdale 2018). Wing length 2.3 - 2.5 mm (♂), 2.3 - 3.0 mm (♀). Length of ultimate section of vein M 4 divided by penultimate section: 0.6 - 0.7. Eye height divided by gena height: 6.9 - 9.2. Ocellar triangle relatively small and rounded. First flagellomere small and nearly circular or slightly longer than high, with nearly indistinct apical tuft of pale hairs. Notum pruinose. Chaetotaxy: Two or three ori (anterior seta small if present); two ors. Ocellar and postvertical setae subequal to outer vertical seta. Five dorsocentrals, strongly decreasing in length anteriorly. Eight irregular rows of acrostichal setulae. Mid tibia with one (male paratype) or two posteromedial setae. Colouration: Setae dark brown with light brown reflection. Body predominantly dark brown (female darker) with light pruinosity; antenna dirty orange with distal 1 / 2 of first flagellomere infuscated (more so dorsally) in holotype, entirely brown in paratypes, with antenna entirely dark brown in female; frontal vitta, gena and postgena paler; apices of fore or all femora narrowly yellow; tarsi yellow; fore tibia light brown, fading to yellow at base. Calypter white with hairs brown. Halter white. Genitalia: (Figs 221 - 224) Surstylus not distinct from epandrium, barely visible laterally, flat on inner surface and with four large spines. Cerci narrow and convergent. Hypandrium broad with thick arch, small apical process, and large inner lobe with two distal setae and several minute basal pits. Postgonite lobate and downturned. Proepiphallus and metepiphallus strongly reduced, flattened. Phallophorus elongate on left side. Halves of basiphallus strongly diverging from, and partially fused to phallophorus; lateromedially with lightly sclerotised membranous lobe; apex folded inwards, with pointed basal process and elongate distal process that is fused to mesophallus. Hypophallus broad, flat, and heavily sclerotised; apically split in dissected NC male. Mesophallus cylindrical, dark, basally rounded, slightly longer than wide, fused to distiphallus. Distiphallus broad, black, ventrally tilted and cup-like with constricted opening enclosing haired inner process. Ejaculatory apodeme well-developed with blade paler, no medial rib evident.	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
D9FA11D5A2DB67470B1691E95BA0A9E9.taxon	distribution	Distribution. USA: CT, NC, VA.	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
AAD218ABDF592EA4BAA0928D2557E5DE.taxon	description	Figs 225 - 231	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
AAD218ABDF592EA4BAA0928D2557E5DE.taxon	description	Description (Fig. 225). Externally as described for A. bispinata except as follows: Wing length 2.3 - 3.3 mm (♂). Length of ultimate section of vein M 4 divided by penultimate section: 0.5 - 0.8. Eye height divided by gena height: 2.7 - 4.8. Small additional ori present in male with five spines on surstylus. First flagellomere sometimes paler with orange tint or predominantly orange with distal 1 / 2 infuscated; always enlarged in male. Postpronotum sometimes light brown or with orange tint. Wing veins brown to yellow. Fore tibia of MD male yellow with centre brownish. Genitalia: (Figs 226 - 231) Surstylus fused to epandrium, easily viewed laterally, with dark anterior lobe and dark pronounced protuberances at base of marginal spines (three to five in number). Hypandrium, postgonite and ejaculatory apodeme as described for A. bispinata. Left sclerite of basiphallus overlapping base of right sclerite, which is fused to phallophorus; both halves with lateromedial membranous projection, and with weak connection to incurved distal section. Distiphallus of " Agromyza nigripes - type " (capsule-shaped with subbasal opening for entry of ejaculatory duct, pronounced dorsobasal collar, and medial convolution); ventral curve with truncated sclerotised elbow; distal section with bulging, internally spinulose medial section. Variation: Dissected paratype with two spines on surstylus (as in A. bispinata), but surstylus and remaining genitalia otherwise identical to holotype. Variation: female paratypes: Wing length 2.9 - 3.1 mm. Length of ultimate section of vein M 4 divided by penultimate section: 0.4. Eye height divided by gena height: 8.7 - 11.8. First flagellomere smaller, ovate; base always orange, reminder orange to brown. Anterior 1 / 2 of frons sometimes orangish.	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
AAD218ABDF592EA4BAA0928D2557E5DE.taxon	distribution	Distribution. Canada: AB *, MB [?], NB *, ON, QC. USA: MD *, MO, NH *, NY *, UT *, VA *.	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
AAD218ABDF592EA4BAA0928D2557E5DE.taxon	materials_examined	Additional material examined. Canada. AB: Elkwater L., 21. vii. 1956, O. Peck, CNC 353101 (1 ♂, CNC), NB: Kouchibouguac N. P., 11. vii. 1977, J. F. McAlpine, Code- 6035 C, CNC 352990 - 352992 (3 ♂, CNC), 12. vii. 1977, J. F. McAlpine, Code- 6040 H, CNC 352989 (1 ♂, CNC), 13. vii. 1977, G. A. Calderwood, Code- 5599 I, CNC 352993 (1 ♂, CNC), 30. vi. 1977, J. R. Vockeroth, Code- 5456 V, CNC 352986, CNC 352987, CNC 352981 - 352985 (7 ♂, CNC), 6. vii. 1977, G. A. Calderwood, Code- 54900, CNC 352988 (1 ♂, CNC), 9. vii. 1977, J. F. McAlpine, Code 6024 R, Code- 6024 R, CNC 352979, CNC 352980 (2 ♂, CNC), ON: Ottawa, on leaf of Philadelphus coronarius, 13. vii. 1959, J. R. Vockeroth, CNC 353100 (1 ♂, CNC). USA. MD: Plummers Isl., 14. vi. 1913, R. C. Shannon (1 ♂, USNM), NH: Jefferson Notch, 30. vii. 1961, creek margin, W. W. Wirth (1 ♂, USNM), NY: Bear Mt., 31. v. 1941, A. L. Melander (1 ♂, USNM), UT: Cache Co., Green Canyon, 23. vii. 1964, Malaise trap, W. J. Hanson (1 ♂, USNM), VA: Shenandoah, Big Meadows, 3. vii. 1939, A. L. Melander (1 ♂, USNM), Fairfax Co., Dead Run, 9. vi. 1915, R. C. Shannon (1 ♂, USNM).	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
F7F0C28C922D3F7E97AA7051328B9849.taxon	description	Figs 236 - 242	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
F7F0C28C922D3F7E97AA7051328B9849.taxon	description	Description. Wing length 1.7 - 2.2 mm (♂), 1.8 - 2.3 mm (♀). Length of ultimate section of vein M 4 divided by penultimate section: 0.9 - 1.0. Eye height divided by gena height: 3.5 - 10.0. Arista pubescent. First flagellomere small and rounded, without pale tuft of hairs. Fronto-orbital plate slightly projecting (more so anteriorly). Ocellar triangle small and rounded. Chaetotaxy: Two ori; two ors. Orbital setulae in one row. Ocellar and postvertical setae subequal to fronto-orbitals. Two strong dorsocentral setae, with second seta ~ 3 / 4 length of first seta; much weaker third dorsocentral not much larger than acrostichal seta. Acrostichal seta ~ 2 x length of setulae. Acrostichal setulae in 8 scattered rows, tapering posteriorly to level of first dorsocentral. Mid tibiae without posteromedial setae. Colouration: Setae dark brown. Antenna yellow to orange; first flagellomere darker orange with basal margin paler and with small brown curved spot around base of arista posteriorly and along outer surface. Frons yellow with posterolateral corner and posterior margin dark brown; orbital plate darker, brownish orange behind anterior ors, becoming darker posteriorly, and with narrow brownish line continuing anteriorly along eye margin beside ori; ocellar spot rounded, dark brown, slightly larger than tubercle; remaining posterior 1 / 2 or less of frontal vitta brownish orange, becoming darker posteriorly, sometimes with this dark region restricted to large circle around ocellar spot. Lunule light yellow. Gena yellow with ventral brownish line. Parafacial yellow. Face whitish yellow. Mouthparts yellow; clypeus with brown tint that is darker laterally. Postgena, back of head and remainder of body mostly dark brown; body subshiny. Apex of fore femur yellowish orange for length equal to width of femur apex; apex of mid femur narrowly paler brown apically; tibiae sometimes paler brown with base and apex yellowish, and mid tibia sometimes with yellow mottling medially; tarsi yellow, becoming more brown tinted on posterior legs; wing veins brown; halter yellow with orange-brown tint on stem; calypter margin and hairs brown. Variation: Posterior 1 / 2 of frons brownish in holotype and FL specimen. IL male with first flagellomere entirely light yellow, head brighter and scutum shiny. Genitalia: (Figs 236 - 242) Epandrium as long as high; fused to small, inwardly directed surstylus. Cercus large, well-developed, venter of inner surface covered with tubercle-like setae. Hypandrium with large apical apodeme and narrow basal arms; medially with weakly sclerotised region connected to L-shaped inner lobe bearing row of minute setae. Postgonite in lateral view with short, flat globose body with extremely long tail; inner surface with apically setose shelf. Phallophorus elongate cylindrical, apicodorsal margin irregularly sclerotised to base of basiphallus. Basiphallus with small left basolateral plate partially fused to large dorsal plate that is strongly curved ventrally at base and with medial and apical lobes that wrap along right lateral surface of shaft. Ejaculatory duct widening to mesophallus, which is round, bulbous, and clear with thick triangular sclerotisation ventrally. Distiphallus composed of one pair of upturned " wings " that nearly meet ventrally and are very narrowly connected dorsally; each wing with small, dark, smooth base expanding into densely haired, distally pointed lobes. Ejaculatory apodeme weakly sclerotised, with broad slanted base and short stem grading into thick blade with faint apical striations; sperm pump with slight basal sclerotisation.	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
F7F0C28C922D3F7E97AA7051328B9849.taxon	distribution	Distribution. Canada: ON, QC. USA: AK, DC, FL, IA, IL, KS, MS, NY, PA, TX, VA *.	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
F7F0C28C922D3F7E97AA7051328B9849.taxon	materials_examined	Additional material examined. USA. FL: Hialeah, em. 10. v. 1963, mine Celtis laevigata, 22. ix. 1963 (1 ♂ 1 ♀ [same pin, with puparia]), Gainesville, Newman's Lake, 26. iv. 1952, O. Peck, CNC 352994 (1 ♂, CNC), Hialeah, 22. ix. 1963, mine Celtis laevigata, Em. 5. x. 1963, [K. A. Spencer], CNC 352996 (1 ♂ 1 ♀ [with puparia], CNC), IL: [illegible], 15. v. 1919 (1 ♀, USNM), NY: Suffolk Co., Stony Brook Village, larva coll. 19. vi. 1993, S. J. Scheffer, 93 - 187 (1 ♂ [illustrated], USNM), eclosed 9. vii. 1993 (1 ♂, USNM), eclosed 8. vii. 1993 (1 ♀, USNM), eclosed 10. vii. 1993 (3 ♂, USNM), eclosed 11. vii. 1993 (1 ♀, USNM), elcosed 17. vii. 1993 (1 ♂, USNM), TX: Kerrville, 4. iv. 1959, J. F. McAlpine, CNC 352995 (1 ♂, CNC), Welder Wildlife Ref. nr Sinton, 19 - 23. iii. 1965, J. G. Chillcott, CNC 352997 (1 ♀, CNC), VA: Fairfax Co., Turkey Run Park, nr. mouth of Turkey Run, 38 ° 57.9 ' N, 7 ° 09.4 ' W, Malaise trap, 26. iv- 2. v. 2007, D. R. Smith (3 ♀, USNM), Turkey Run Park, 0.3 km W mouth Turkey Run, 38 ° 58 ' N, 77 ° 09.6 ' W, Malaise trap, D. R. Smith, 18 - 30. v. 2007 (1 ♀, USNM), 29. iii- 25. iv. 2007 (1 ♂, USNM), Great Falls Park, quarry, 38 ° 59.1 ' N, 77 ° 14.8 ' W, Malaise trap, D. R. Smith, 24. iv- 2. v. 2007 (3 ♂ 1 ♀, USNM), 10 - 17. v. 2007 (1 ♂, USNM), 3 - 10. v. 2007 (1 ♂, USNM).	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
30A6500B411EDF1CFC5F1A03A67A7B9A.taxon	description	Fig. 151	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
30A6500B411EDF1CFC5F1A03A67A7B9A.taxon	description	Description. Wing length 3.2 mm. Length of ultimate section of vein M 4 divided by penultimate section: 0.6. Eye height divided by gena height: 3.4. First flagellomere longer than wide with rounded apex; apical margin possibly with longer, paler hairs. Fronto-orbital plate and parafacial slightly projecting. Ocellar triangle broadly rounded and short, not extending much past ocelli. Buccal cavity subquadrate. Chaetotaxy: Four ori; one ors (not two as reported by previous authors). Four postsutural dorsocentrals, decreasing in length anteriorly. Mid tibia with two posteromedial setae. Colouration: Body predominantly brown with halter white. Gena (excluding ventral margin), parafacial and frons (excluding posterolateral corner, posterior margin and ocellar triangle) light brownish orange, with fronto-orbital plate lightly pigmented posteriorly to base of posterior ori. First flagellomere, scape and pedicel orange, sometimes with dark spot at base of arista. Lunule orange. Face brown. Palpus and clypeus dark brown. Calypter margin and hairs white. Legs dark brown with knees yellow and tibiae and tarsi with orange tint (brighter on tarsi). Genitalia: (Fig. 151) Surstylus triangular with basal suture obliterated; with minute apical setae and medial tubercle-like setae. Hypandrium relatively long and narrow with minute apical point. Postgonite very broad, flat, and lobate. Halves of basiphallus long with ventral margin weakly defined, apices hooked, and right sclerite with broader base. Distiphallus very long, cylindrical, dark and with distal 2 / 5 bifid and not strongly curved. Ejaculatory apodeme small and thin, without apical blade. Variation: Canadian material differs as follows: wing length 3.0 - 3.2 mm (♂), 3.4 - 3.8 mm (♀); eye height divided by gena height 5.1 - 10.6; first flagellomere with relatively discrete ovate pilose patch; 2 ors and 2 - 3 ori; first flagellomere brownish on distal and dorsal margins anterior to arista base; posterior 1 / 3 of frons much darker; fronto-orbital plate with ill-defined brown margin along length; parafacial dark brown; distiphallus only split on distal 1 / 10.	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
30A6500B411EDF1CFC5F1A03A67A7B9A.taxon	distribution	Distribution. Canada: ON *. USA: VA.	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
30A6500B411EDF1CFC5F1A03A67A7B9A.taxon	materials_examined	Additional material examined. Canada. ON: Orleans, Chapel Hill, at flowers of Phyllocarpus, 23. vi. 1994, J. R. Vockeroth, CNC 353052 (1 ♀, CNC), Ottawa, Damp second-growth Acer - Betula woods, 12. vii. 1994, J. R. Vockeroth, CNC 353053 (1 ♀, CNC), 15. vi. 1998, CNC 353059 (1 ♀, CNC), 16. viii. 1992, CNC 353046 (1 ♂, CNC), 17. vi. 2003, CNC 353056 (1 ♀, CNC), 2. vii. 1993, CNC 353044 (1 ♂, CNC), 24. vii. 2000, CNC 353049 (1 ♂, CNC), 29. vi. 1994, CNC 353058 (1 ♀, CNC), 29. vi. 1997, CNC 353047 (1 ♂, CNC), 29. vii. 1992, CNC 353045 (1 ♂, CNC), 30. vi. 1991, CNC 353054 (1 ♀, CNC), 30. vii. 1993, CNC 353051 (1 ♀, CNC), 6. viii. 1993, CNC 353043, CNC 353057 (1 ♂, 1 ♀, CNC), 7. viii. 1993, CNC 353050 (1 ♂, CNC), 7. viii. 2000, CNC 353055 (1 ♀, CNC), 9. vii. 2000, CNC 353048 (1 ♂, CNC).	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
4A92738683BCAC667666A9BBE6895CAD.taxon	description	Figs 243 - 249	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
4A92738683BCAC667666A9BBE6895CAD.taxon	description	Description. Externally as described for A. isolata except as follows: Wing length 2.4 - 2.7 mm (♂), 2.4 mm (♀). Length of ultimate section of vein M 4 divided by penultimate section: 0.6 - 0.8. Eye height divided by gena height: 3.8 - 6.5. Sometimes three ori on one side of frons. Overall colour slightly darker, with antenna dark brown and calypter margin and hairs always brown; mid and hind tibiae brown with apex and sometimes base yellowish. First flagellomere sometimes appearing slightly angulate and with some longer apical hairs. Genitalia: (Figs 243 - 249) Surstylus not distinct from epandrium (which has desclerotised distal emargination), and with several setae and tubercle-like setae on inner margin. Hypandrium long and narrow, sides nearly parallel and with tapered apical process. Postgonite small, dome-like with several outer setulae. Phallophorus atrophied on right side, produced and slightly setulose on left side, fused to right sclerite of basiphallus, twisting around shaft; left sclerite of basiphallus narrow, curving around venter at base. Basiphallus broad and fringed basally with dextral twist. Hypophallus composed of weak, long narrow band. Mesophallus short, cylindrical, with longer ventral plate. Distiphallus short, subcylindrical with ventral break, and fringed along distal and ventral margins.	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
4A92738683BCAC667666A9BBE6895CAD.taxon	distribution	Distribution. Canada: AB, BC, ON, NS. USA: CT *, DC *, MA, MD *, NC, NH *, NY *, PA *, TN, VA *.	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
4A92738683BCAC667666A9BBE6895CAD.taxon	materials_examined	Material examined. Canada. BC: 20 km E Pemberton, 14. viii. 1991, A. Borkent, CNC 353014, CNC 353015 (2 ♂, CNC), Hagensborg, 12. vii. 1992, A. Borkent, CNC 353016 (1 ♂, CNC), 42 km NE Hope, 2. viii. 1991, A. Borkent, CNC 353015 (1 ♂, CNC), 32 mi SW of Terrace, 9. vii. 1960, J. G. Chillcott, CNC 353017 (1 ♂, CNC), ON: St. Lawrence Is. Nat. Park, Aubrey Island, 4. ix. 1976, W. Reid, Code 4618 - R, CNC 353006 (1 ♂, CNC), St. Lawrence Is. Nat. Park, Cedar Island, 31. viii. 1976, W. Reid, Code 4586 - L, CNC 353007 (1 ♀, CNC), St. Lawrence Is. Nat. Park, McDonald Is., 14. vi. 1976, 6. ix. 1976, A. Carter, W. Reid, Code 4092 - J, Code 4633 - G, CNC 353005, CNC 353008 (1 ♂ 1 ♀, CNC), St. Lawrence Is. Nat. Park, Thwartway Is., 24. vii. 1976, W. Reid, Code 4198 - L, CNC 353009 (1 ♀, CNC). USA. CT: Kent Fall, 28. viii. 1940, A. L. Melander (1 ♂, USNM), Redding, 28. v. 1939, A. L. Melander (1 ♂, USNM), DC: Washington, " v- 17 ", J. M. Aldrich (1?, USNM), MA: Franklin Co., Northfield, Crag Mountain, 11. x. 2013, ex. Rubus (blackberry), em. 27. iii. 2014, C. S. Eiseman, # CSE 1030, CNC 384794 (1 ♂, CNC), MD: Glen Echo, 21. viii. 1921, J. R. Malloch (1 ♂, USNM), Colesville, 1. v. 1977, W. W. Wirth (1 ♀, USNM), Montgomery Co., Dickerson, 14. vii. 1974, G. A. Foster (1 ♀, USNM), NC: Highlands, Wilson's Gap, 944 m, 12. v. 1957, J. R. Vockeroth, CNC 353011 (1 ♀, CNC), Mitchell Co., Roan Mtn, 1889 m, 13. viii. 1957, J. G. Chillcott, CNC 353010 (1 ♀, CNC), Wyah Bald, 13. vi. 1957, C. J. Durden, CNC 353012 (1 ♀, CNC), NH: White Mts., Stinson Lake, 23. vii. 1961, W. W. Wirth (1 ♂, USNM), NY: Allegany St. Pk., 28. v- 3. vi. 1963, stream margin, W. W. Wirth (1 ♂, USNM), Orleans Co., Albion, 11. vi. 1963, Burma woods, W. W. Wirth (1 ♂, USNM), Monroe Co., Braddock Bay, 12. vi. 1963, near marsh, W. W. Wirth (1 ♂, USNM), PA: Mineral Spr., 5. ix. 1927, A. L. Melander (2 ♂, USNM), Monroe Co., Mt. Pocono, 28. vii. 1985, G. F. and J. F. Hevel (1 ♂, USNM), TN: Smokies, Chimneys, A. L. Melander, 25. vi. 1941 (1 ♀, USNM), 20. vi. 1941 (1 ♂, USNM), Indian Gap to Clingman's Dome, 5200 - 6600 ', 6. viii. 1957, J. G. Chillcott, CNC 353004 (1 ♂, CNC), VA: Luray, 24. vi. 1923, A. L. Melander (1 ♂, USNM), Fairfax Co., Turkey Run Park, nr. mouth of Turkey Run, 38 ° 57.9 ' N, 7 ° 09.4 ' W, Malaise trap, river trap, 17 - 24. v. 2006, D. R. Smith (1 ♀, USNM).	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
72016D3B153A9F6EA5A55BE09AF826E0.taxon	description	Figs 413 - 417	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
72016D3B153A9F6EA5A55BE09AF826E0.taxon	description	Description. Wing length 1.8 - 2.2 mm (♂), 2.2 - 2.7 mm (♀). Length of ultimate section of vein M 4 divided by penultimate section: 1.3 - 2.5. Eye height divided by gena height: 2.3 - 3.1. Gena broad, ventral margin straight, highest posteriorly. Epistoma ~ 2 / 3 length of clypeus with anterior margin relatively straight. Fronto-orbital plate and parafacial projecting, visible laterally but less pronounced than in A. karli. First flagellomere ~ 1 / 3 longer than high and with anterodistal corner slightly to indistinctly angulate. Lunule height <1 / 2 width. Distance between cross-veins distinctly longer than dm-m. Thorax with light pruinosity. Chaetotaxy: Three ori (uncommonly two or four); two ors. Postocellar and ocellar setae as long as ors. Setulae on tubercle slender, as long as ocellus. Orbital setulae short and indistinct to absent, reclinate. Four dorsocentrals: one presutural, posterior two well-developed, posterior-most slightly longer, anterior two short. Acrostichal setulae in four scattered rows. Colouration: Setae dark brown. Entire body (including knob of halter, which is only paler around sutures) brown except as follows: gena, parafacial, lunule and frons light brown; lateral and posterior margins of frons darker, with dark stripe on margin extending to surround bases of fronto-orbitals; clypeus and lower margin of gena very dark and shiny; face darker towards centre. Calypter margin and hairs pale brown. Genitalia: (Figs 413 - 417) Hypandrium stout and broadly arched; inner lobe weakly sclerotised, separated by suture and with several medial setae on narrow, well-sclerotised strip. Halves of basiphallus separate, plate-like; hypophallus weakly sclerotised, split. Paraphallus small, lobate, membranous. Mesophallus approximately as long as wide, slightly compressed dorsoventrally. Distiphallus dense, dark, globular; surrounded by minute spinules apically and larger spicules basally (also see comments below). Ejaculatory apodeme broad on distal 2 / 3 with margin pale; stem broad; sperm pump bowl-shaped, broadly rounded, lightly sclerotised.	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
72016D3B153A9F6EA5A55BE09AF826E0.taxon	distribution	Distribution. Canada: BC, MB, NB *, ON, QC. USA: AZ, CA, CO *, DC, IA, KS, MD *, MO *, NM. Mexico. Germany (Cerny et al. 2020). While previously reported Palaearctic records of A. abnormalis were determined to represent A. chenopodivora Spencer (Spencer 1976; Boucher 2012 b), Cerny et al. (2020) listed specimens of A. abnormalis collected at a single locality in Germany that they suggest result from introduction of its New World host Amaranthus retroflexus in Europe.	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
72016D3B153A9F6EA5A55BE09AF826E0.taxon	materials_examined	Additional material examined. Canada. CANADA. BC: Robson, 13. vi. 1952, H. R. Foxlee, CNC 358588 (1 ♀, CNC), MB: Brandon, 10. viii. 1958, J. G. Chillcott, CNC 358587 (1 ♀, CNC), NB: Dannebrog, 18. viii. 1960, W. F. Rapp (1 ♀, USNM), ON: Chatham, 29. viii. 1928, A. B. Baird, 18333 A, CNC 358590 (1 ♀, CNC), Ottawa, 11. vii. 1957, J. E. H. Martin, CNC 358589 (1 ♀, CNC), QC: Abbotsford, 19. vi. 1937, G. Shewell, CNC 358591 (1 ♂, CNC). USA. CO: Custer Co., 10 mi SW of Wetmore, 8. viii. 1973, G. F. and S. Hevel (1 ♀, USNM), IA: Ames, 16. viii. 1924, H. L. Sweetman, " 2690 " (1 ♀, USNM), Mills Co., 2 mi SW Glenwood, 27. viii. 1969, R. R. Pinger (1 ♂, USNM), MD: Montgomery Co., 4 mi S of Ashton, Malaise trap, G. F. and J. F. Hevel, 6. ix. 1981 (1 ♂, USNM), 31. v. 1986 (1 ♂, USNM), MO: Boone Co.: Columbia, Malaise trap, 7 am- 4 pm, 9. ix. 1967, P. D. Parker (1 ♂, USNM), Columbia, Malaise trap, F. D. Parker, 17 - 31. viii. 1968 (1 ♂ 1 ♀, USNM), 16 - 31. vii. 1968 (1 ♂ 2 ♀, USNM), 1 - 15. vii. 1968 (1 ♂, USNM), 6. vii. 1968 (1 ♀, USNM), 6. ix. 1968 (1 ♀, USNM), 7. viii. 1968 (4 ♀, USNM).	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
6E4BE576EE91386E9C64495EF7D8629E.taxon	description	Figs 84, 85, 418 - 424, 429	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
6E4BE576EE91386E9C64495EF7D8629E.taxon	description	Description (Figs 84, 85, 429). Wing length 1.8 - 2.3 mm (♂), 2.0 - 2.4 mm (♀). Length of ultimate section of vein M 4 divided by penultimate section: 2.3 - 3.3. Eye height divided by gena height: 3.9 - 4.7. Gena shallow, highest posteriorly and strongly angled upwards anteriorly. Epistoma shallow and broadly rounded. Fronto-orbital plate and parafacial soft, fronto-orbital plate somewhat visible laterally. Lunule height ~ 0.6 - 0.8 x width. First flagellomere subcircular, with minute tuft of slightly longer hairs apically. Distance between cross-veins approximately as long as dm-m or shorter. Chaetotaxy: Two or three ori; two or three ors (rarely one). Orbital setulae short, dark and erect, but sometimes strengthened and appearing as shorter additional ori. Setulae on tubercle strong, erect. Postocellar and ocellar setae as long as ors, with ocellar slightly shorter. Four dorsocentrals, one presutural; decreasing in length anteriorly; sometimes with additional strengthened setula near suture. Acrostichal setulae in four to five scattered rows. Colouration: Setae dark brown. Body colour faintly to strongly infused with orange tint. Head mostly yellow; first flagellomere light brown to brown excluding base, but sometimes more broadly yellowish; pedicel brownish (sometimes yellow apically); back of head dark brown; posterolateral corner of frons dark brown to base of vertical setae; palpus, face, clypeus, and lower margin of gena brown; gena sometimes brownish. Thorax dark brown with light dusting of pruinosity. Halter yellow. Calypter margin and hairs brown. Legs dark brown with apex of fore femur yellow. Abdomen dark brown. Genitalia: (Figs 418 - 424) Epandrium fused with surstylus, interface evident by partial suture; surstylus setose, short, broadly lobate; surstylus and posterodistal margin of epandrium curved inwards. Subepandrial sclerite consisting of one pair of well-sclerotised lateral plates (one seta each apically) joined by broad membranous space medially; with weakly sclerotised triangular lobe underneath cerci. Epiphallus weakly sclerotised, but divided into one pair of ill-defined plates with four strong ridges on anterior plate that are weakly attached to strong saddle-shaped basal plate meeting phallophorus. Hypandrium small, broadly rounded and stout. Postgonite bare, curved medially, with weak inner-medial lobe, apically subcircular with distal 1 / 2 weakly sclerotised. Ejaculatory duct broad, lightly pigmented, becoming darker and slightly wider apically. Basiphallus with weak subquadrate dorsobasal plate distally branching (from left side) into two darker bands, the right band wider with dorsum paler; apically narrowed and paler, medially fusing with broad, black ventral extension of distiphallus (possibly homologous to paraphalli). Mesophallus not discernible, likely fused into base of distiphallus. Distiphallus as long as distance from its base to apex of phallophorus; black, split along most of length into two stout processes that slightly widen apically; membrane surrounding distiphallus with minute clear spinulae around apex with medial line smoother. Ejaculatory apodeme paler to apex, broad blade continuous with stem, gradually tapering to base; sperm pump sclerotised, broadly bowl-shaped or somewhat pointed ventromedially.	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
6E4BE576EE91386E9C64495EF7D8629E.taxon	distribution	Distribution. Canada: BC, ON, QC. USA: DE, IL, MA, MD *, MI, MN, NC *, NY, OH, OR, PA, VA *, VT, WA; leaf mines only in CT, IA, ID, KY, WI (Eiseman and Lonsdale 2018). Tunisia, Western Europe to the Kyrghyz Republic and North Korea (Spencer 1976; Cerny et al. 2020).	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
6E4BE576EE91386E9C64495EF7D8629E.taxon	materials_examined	Material examined. Canada. BC: Vancouver, Point Grey, 17. ix. 1972, J. R. Vockeroth (3 ♂, CNC), ON: Ottawa, 695 Malibu Tr., 45 ° 22 ' 16.29 " N, 75 ° 42 ' 57 " W, 20. vi. 2017, O. Lonsdale, ex Silene vulgaris, em. 6. vii. 2017, CNC 799453, CNC 799454 (2 ♀, CNC), Ottawa, 23. viii. 1971, ex wild Aster, H. J. Teskey (2 ♀, CNC), Ottawa, winter 1965 - 66, bred from leaf mine in Dianthus, M. Hildebrand, reared in lab (1 ♂, CNC), Ottawa, 23. v. 1975, H. C. W. Walther (1 ♀ 4 puparia, CNC), Ottawa, 21. viii. 1974, J. R. Vockeroth (1 ♂, CNC), Ottawa, damp second-growth Acer - Betula wood, J. R. Vockeroth, 21. v. 1991 (1 ♂, CNC), 25. v. 1991 (2 ♂, CNC), 26. vi. 1991 (2 ♀, CNC), 6. vii. 1991 (1 ♀, CNC), 9. vii. 1991 (1 ♀, CNC), 11. vii. 1991 (1 ♀, CNC), 17. vii. 1993 (5 ♂, CNC), 8. viii. 1993 (1 ♀, CNC), 13. viii. 1993 (1 ♂, CNC), 28. viii. 1993 (1 ♂, CNC), 12. vii. 1994 (4 ♂, CNC), 30. v. 1995 (1 ♂, CNC), 29. viii. 1997 (1 ♂, CNC), 1. ix. 1997 (1 ♂, CNC), 6. xi. 1997 (1 ♂, CNC), 14. viii. 1998 (1 ♂, CNC), 5. vii. 2000 (1 ♂, CNC), 11. vii. 2000 (1 ♂, CNC), 12. vii. 2000 (1 ♂, CNC), 12. viii. 2000 (1 ♂, CNC), 15. viii. 2000 (1 ♂, CNC), 21. viii. 2000 (1 ♂, CNC), 27. viii. 2000 (1 ♂, CNC), 29. viii. 2000 (1 ♂, CNC), 2. x. 2000 (1 ♀, CNC), 16. vii. 2002 (1 ♂, CNC), 22. viii. 2002 (1 ♂, CNC), 16. ix. 2002 (1 ♂, CNC), 14. vii. 2003 (2 ♂, CNC), 15. vii. 2003 (2 ♂, CNC), 3. viii. 2003 (1 ♂, CNC), 21. viii. 2003 (1 ♂, CNC), 24. viii. 2002 (2 ♂, CNC), Thornhill, J. R. Vockeroth, 30. v. 1964 (29 ♂ 33 ♀, CNC), Metcalf, 28. vii. 1993, B. E. Cooper (2 ♂, CNC), St. Lawrence Is. N. P., Grenadier I. Centre, 28. vii. 1975, E. Sigler (2 ♂, CNC), QC: Gatineau Pk., Old Chelsea, H. J. Teskey, 28, vii. 1971 (1 ♂ 1 ♀ [with puparium], CNC), viii. 1971 (1 ♀, CNC), Hull, Diptera on Bidens, 25. viii. 1960, C. D. Miller (1 ♀ [with puparium and host leaf], CNC). England. Torcross, Devon, 14. vii. 1942, G. E. Shewell (1 ♀, CNC). Europe. No data, " Dizygom. flavifrons Mg. ♂ det. Hendel " (1 ♂, USNM), " Dizygom. flavifrons Mg. det. Hendel " (1 ♂, USNM). Germany. Mine an: Cerastium holosteoides, Hering Z: Crossen a. O., 1964, Muehlhausen Thueringen, H. Buhr, 2298 (2 ♂ [same pin], CNC), Mine an: Coronaria floscuculi [= Lychnis flos-cuculi L.], Crossen a. O., Hering: Z. (1 ♀, CNC). Hungary. Budapest, Janoshed, em. 21. vi. 1964, mine Melandrium sp. 28. v. 1964, K. A. Spencer (1 ♀ [with puparium], CNC). USA. MD: Colesville, W. W. Wirth, 11. vii. 1974 (1 ♀, USNM), 24. vii. 1974 (1 ♂ 2 ♀, USNM), 14. vi. 1975 (1 ♀, USNM), 4. vii. 1976 (2 ♀, USNM), 28. vii. 1976 (2 ♀, USNM), 14. vi. 1977 (1 ♀, USNM), 18. vi. 1977 (1 ♀, USNM), 28. v. 1977 (1 ♂, USNM), 26. vi. 1977 (2 ♂, USNM), Montgomery Co., Colesville, 3. viii. 1979, Malaise trap, W. W. Wirth (1 ♀, USNM), OH: Portage Co., 3 mi E Kent, 10. vi. 1969, Biol. Note No. 6901, S. Whitney (1 ♀, USNM), Hocking Co., South Bloomingville, Deep Woods Farm, 24. x. 2013, em. 26 - 28. iii. 2014, C. S. Eiseman, ex Silene rotundifolia, # CSE 1028, CNC 384742 - 384747 (6 ♀, CNC), OR: Lane Co., Blue River, 24. vii. 2016, M. W. Palmer, Silene coronaria em. 18 - 30. vii. 2016, # CSE 3037, CNC 638887 - 638890 (3 ♂, 1 ♀, CNC), NC: Jackson Co., Dulaney Bog, 7 mi S Cashiers, 19. vi. 1986, Malaise trap, W. W. Wirth (1 ♀, USNM), VA: Giles Co., Mountain Lake, 7. ix. 1976, G. C. Steyskal (1 ♂, USNM), Fairfax Co., Turkey Run Park, 0.3 km W mouth Turkey Run, 38 ° 58 ' N, 77 ° 09.6 ' W, Malaise trap, 12 - 26. vii. 2007, D. R. Smith (1 ♀, USNM).	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
8761E932D320D14F7072FC10740956EF.taxon	description	Figs 86, 87, 425 - 428, 430	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
8761E932D320D14F7072FC10740956EF.taxon	description	Description (Figs 86, 87, 430). Wing length 1.7 - 2.0 mm (♂), 2.0 - 2.5 mm (♀). Length of ultimate section of vein M 4 divided by penultimate section: 1.8 - 2.3. Eye height divided by gena height: 1.6 - 1.8. Gena broad, highest posteriorly; cheek distinct. Epistoma at least as long as very narrow clypeus, strongly pointed anteriorly. Fronto-orbital plate and parafacial produced, visible laterally and strongly projecting anteriorly. First flagellomere ~ 1 / 3 longer than high with anterodistal corner somewhat angulate, sometimes slightly shorter, and more rounded. Lunule height <1 / 2 width. Distance between cross-veins distinctly longer than dm-m. Chaetotaxy: Cephalic setae very slender and relatively short. Vibrissa barely larger than genal setae. Three ori; one ors. Orbital setulae short and indistinct to absent, reclinate. Postocellar and ocellar setae slightly longer than ocellar tubercle; setulae on tubercle slender, as long as ocellus. Four to six dorsocentrals; one or two presutural with anterior two short. Acrostichal setulae in 2 - 4 straight to scattered rows. Colouration: Setae light brown. Head light yellow with ocellar tubercle and back of head above foramen brown, posterolateral corner of frons with brown spot encompassing vertical setae or just reaching base of inner vertical; base of ors sometimes with brownish spot; clypeus brownish to brown. Thorax dark brown (notopleuron paler) with colour largely obscured by silvery pruinosity. Halter yellow. Calypter white with margin and fringe often lemon yellow, but sometimes slightly brownish. Legs brown with fore coxa light brown, and trochanters, apices of femora (sometimes distal 1 / 3) and sometimes apices of coxae light yellow; base of tibiae sometimes yellow. Abdomen brown. Genitalia: (Figs 425 - 428) Hypandrium stout and broadly rounded; inner lobe separated by suture, largely membranous and with several setae on small sclerotised medial plate. Plates of basiphallus short, distinct, approximate. Hypophallus membranous medially and with lateral margins sclerotised. Length of mesophallus ~ 2 x width. Distiphallus very dark, laterally " haired ", C-shaped; entirely split and narrowly divided sagittally; base dorsal, narrower, stem-like; surrounding membrane with minute dark spinules laterally. Ejaculatory apodeme paler to apex, blade gradually narrowing basally to stout stem; sperm pump sclerotised, broad, hemispherical.	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
8761E932D320D14F7072FC10740956EF.taxon	distribution	Distribution. Canada: AB, BC *, MB, NS *, ON, QC, SK *. USA: MD *. Europe, Mongolia, South Korea (Cerny et al. 2020).	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
8761E932D320D14F7072FC10740956EF.taxon	materials_examined	Material examined. CANADA. BC: Yoho N. P., Kicking Horse Cmpgrnd, forested cmpgrnd, 51.4245 ° N, 116.4294 ° W, 1317 m asl, BIOBus (1 ♀, CNC), NS: Cumberland Co., Malagash Blue Sea Beach Day Park, 45 ° 48 ' 17 " N, 63 ° 18 ' 15 " W, 4. viii. 2013, O. Lonsdale (1 ♂, CNC), Kouchibouguac N. P., 2. vii. 1977, J. R. Vockeroth (1 ♂, CNC), ON: Ottawa, 45 ° 19 ' 1.20 " N, 75 ° 43 ' 12 " W, 90 m, 20. vi. 2016, J. E. O'Hara, Malaise trap, CNC 629539, CNC 629543 (2 ♂, CNC), Ottawa, 23. vi. 1964 (1 ♀, CNC), Essex Co., Kingsville, ex Chenopodium album, em. i. 1990, 17. ix. 1989, K. L. P. Heal (2 ♂ 1 ♀, CNC), SK: near Clavet, quinoa field, 6. ix. 2017, CNC 939976 (1 ♂, CNC), vii-viii. 2017, CNC 939980, CNC 939982 - 939984 (1 ♂ 3 ♀, CNC), near Colonsay, quinoa field, 5. vii. 2017, NIS 2017 - 298, CNC 939974, CNC 939975 (2?, CNC). USA. MD: Montgomery Co., Colesville, 26. vi. 1977, Malaise trap, W. W. Wirth (1 ♂, USNM), 30. vi. 1977 (1 ♂, USNM), 21. v. 1977 (1 ♂, USNM), 14. vi. 1977 (1 ♀, USNM), 4. vii. 1976 (1 ♀, USNM), 18. ix. 1977 (1 ♂ 1 ♀, USNM), 4 mi SW of Ashton, Malaise trap, G. F. and J. F. Hevel, 1. ix. 1981 (1 ♂ 1 ♀, USNM), 6. vi. 1986 (1 ♂, USNM), Bethseda, 10. vii. 1970, G. Steyskal (1 ♀, USNM).	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
9B895E3BCDD0DEDE8FA2CFB3047487FC.taxon	description	Figs 88, 431 - 434, 435	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
9B895E3BCDD0DEDE8FA2CFB3047487FC.taxon	description	Description (Figs 88, 435). Wing length 1.9 - 2.0 mm (♂), 1.9 - 2.2 mm (♀). Length of ultimate section of vein M 4 divided by penultimate section: 2.4 - 2.8. Eye height divided by gena height: 3.7 - 5.0. First flagellomere relatively narrow, not higher than pedicel. Fronto-orbital plate slightly projecting, especially anteriorly. Gena horizontal on posterior 1 / 2, angled upwards on anterior 1 / 2. Proboscis relatively narrow, elongate, and geniculate. M 1 + 2 weak. Cross-veins separated by length of dm-m. Ocellar triangle as long as wide. Chaetotaxy: Three ori; two ors (slightly curved inwards, difficult to differentiate from ori). Ocellar seta as long as or slightly longer than tubercle, sometimes narrower than postocellar; postocellar longer, well-developed. Orbital setulae very few in number, weak, slightly reclinate. Two dorsocentrals, anterior seta 1 / 2 - 3 / 5 length. Six irregular rows of acrostichal setulae. Colouration: Setae dark brown. Body predominantly dark brown, subshiny. Antenna brownish yellow with distal 2 / 3 or more of first flagellomere brown; clypeus and back of head brown; frons brownish yellow with ocellar triangle dark brown and dark spot at base of vertical setae extending to posterior or anterior ors along eye margin; remainder of fronto-orbital plate variably brownish from lateral margin; lunule, gena, palpus and parafacial yellow with shiny brown strip along ventral margin of gena; mouthparts brownish, partly brown along proboscis; face brown to dark brown, sometimes becoming paler laterally. Postpronotum light yellow to dirty white with brown anterior spot or anterior region fading to brown, but sometimes only posterior margin pale; notopleuron often paler brown with posterior margin sometimes yellowish. Fore knee (and occasionally mid and hind knees) yellowish. Halter yellow. Calypter margin and hairs dark brown. Wing veins brown. Genitalia: (Figs 431 - 434) Surstylus separate from epandrium, minutely setose, small and rounded with extended posterobasal margin. Cerci separated by membranous region with weakly sclerotised transverse striations. Subepandrial sclerite composed of two converging lateral arms that are weakly connected to one pair of apical setae. Hypandrium stout and broadly rounded with apex slightly produced; inner lobe with small medial floating setose sclerite, and separate, narrow, curved sclerite with several basal setulae. Postgonite long and narrow with apex cleft and setulose. Phallus weakly sclerotised. Plates of basiphallus broad with bases converging and interlocking. Paraphallus small and leaf-like with apices pointed and bent. Mesophallus short, curved dorsally, laterally flattened, fused to distiphallus. Distiphallus bifid on distal 1 / 2 with slightly wider apical cups. Ejaculatory apodeme short and not strongly widened apically.	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
9B895E3BCDD0DEDE8FA2CFB3047487FC.taxon	distribution	Distribution. Canada: AB. USA: CO *, CT *, DC *, IA, IL, KS, MD, NC, NY *, VA, WA *.	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
9B895E3BCDD0DEDE8FA2CFB3047487FC.taxon	materials_examined	Additional material examined. Canada. AB: George Lk., 21. vi. 1966, K. A. Spencer, CNC 165181 (1 ♀, CNC). USA. CO: Boulder, Flagstaff Cn., 1767 m, on side of stream, 10. vi. 1961, C. H. Mann, CNC 358592 (1 ♀, CNC), CT: Stamford, 18. v. 1919, A. H. Stutevant Collection, 1970 (1 ♀, USNM), DC: 11. vi. 1926, J. M Aldrich (1 ♀, USNM), IL: White Heath, 8. v. 1915, J. M. Aldrich (1 ♂, USNM), KS: Nat. Hist. Res., Lawrence, 26. v. 1956, J. G. Chillcott, CNC 391383, CNC 391384 (2 ♂, CNC), 27. iii. 1954, CNC 358595, CNC 358596 (2 ♂, CNC), 28. iv. 1956, CNC 391380 - 391382, CNC 391385 - 391393, CNC 358593 - 358594, CNC 358597 - 358598 (16 ♂, CNC), MD: Lavale, 9. v. 1970, G. Steyskal (1 ♂, USNM), Montgomery Co., Bethseda, 5. v. 1968, L. V. Knutson (1 ♀, USNM), Bethseda, 4. v. 1969, G. Steyskal (1 ♂, USNM), NY: Tuxedo, 29. v. 1926, A. L. Melander (1 ♂, USNM), VA: Chain Bridge, 23. iv. 1922, J. R. Malloch (1 ♀, USNM), Fairfax Co., Turkey Run Park, nr. Headquarters bldg. 38 ° 57.7 ' N, 77 ° 08.9 ' N, Malaise trap, 29. iii- 17. iv. 2007, D. R. Smith (2 ♂, USNM), Turkey Run Park, 0.3 km W mouth Turkey Run, 38 ° 58 ' N, 77 ° 09.6 ' W, Malaise trap, 29. iii- 25. iv. 2007, D. R. Smith (2 ♂ 6 ♀, USNM), Great Falls Park, swamp trail, 38 ° 59.4 ' N, 77 ° 15.2 ' W, Malaise trap, 18. iv- 2. v. 2007, D. R. Smith, trap # 2 (1 ♂ 1 ♀, USNM), WA: Vashon, 28. v. 1937, A. L. Melander (1 ♀, USNM).	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
43C0505FE324F987F61BD6FE8289A0E2.taxon	description	Figs 436 - 441	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
43C0505FE324F987F61BD6FE8289A0E2.taxon	description	Description (Fig. 436). Wing length 1.8 - 2.4 mm (♂), 2.1 - 2.6 mm (♀). Vein dm-m absent. M 1 + 2 nearly spectral. First flagellomere slightly longer than high. Eye height divided by gena height: 4.8 - 8.1. Parafacial very narrow. Gena straight, angled upwards. Ocellar triangle length ~ 2 / 3 width with posterior ocelli widely spaced. Lunule shallow, semi-circular. Chaetotaxy: Two ori (anterior seta sometimes reduced); two ors. Postocellar and ocellar setae well-developed. Orbital setulae very small, fine, reclinate or more erect, in one row. Five to six dorsocentrals, four postsutural, decreasing in length anteriorly. Four relatively straight to scattered rows of acrostichal setulae. Prescutellar acrostichal seta small to strong. Small seta medial to presutural supra-alar. Colouration: Setae brown to dark brown. Base colour of body dark brown with brown pruinosity. Head dirty yellow to brownish; antenna yellow to brownish with first flagellomere brown to dark brown (inner base sometimes yellowish); frons with broad brown spot surrounding base of vertical setae that sometimes extends along eye margin lateral to posterior fronto-orbital; fronto-orbital plate sometimes brownish; ocellar triangle dark brown with broadly rounded corners that only slightly extend outside tubercle; gena brown below cheek with ventral margin dark brown; palpus light brown; face with brown mottling that predominates laterally, or face brown with yellow tint and yellow vertical stripe medially; back of head and clypeus dark brown. Postpronotum light yellow with large dark brown spot reaching anterior margin; notopleuron light yellow; anterolateral corner of postsutural scutum usually narrowly light yellow; posterolateral corner of scutum lateral to scutellum with ill-defined light yellow spot. Pleuron dark with limited light yellow margins posterodorsally on anepisternum. Halter yellow. Calypter pale with hairs brown. Wing veins brown. Legs with apex of femora yellow for length approximately equal to width of femur apex; fore tibia dirty yellow to yellow, sometimes brownish medially; base of mid and hind tibiae sometimes narrowly yellow; tarsi dirty yellow. Genitalia: (Figs 437 - 441) Epandrium shallow, loosely articulated with surstylus. Surstylus small, lobate, short setose. Cercus small, narrow. Hypandrium relatively thin with inner lobe broad and wrapped around dorsum of postgonite; lobe with two long inner setae and anteromedial process with several sockets. Postgonite long and narrow with dorsomedial tooth and upcurved split apex with two subapical setae. Phallus slightly twisted. Phallophorus short. Basiphallus composed of two broad, narrow plates, right 1 / 2 emarginate ventromedially; weakly connected to lobate paraphallus. Mesophallus not evident. Distiphallus 1 / 2 length of basiphallus, subcylindrical with base swollen and basally desclerotised, with indistinct ventromedial suture, apically widened and fringed; surrounded by subspherical sclerotised ball that is open dorsoapically and strengthened by transverse band dorsobasally. Ejaculatory apodeme evenly pigmented with narrow stalk and relatively broad apex.	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
43C0505FE324F987F61BD6FE8289A0E2.taxon	distribution	Distribution. Canada: AB, BC *, MB, ON *, QC *, SK *. USA: CA, CO *, IA, ID, IL *, KS, MA, MD *, MI, NC, OK, WA, WI *.	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
43C0505FE324F987F61BD6FE8289A0E2.taxon	materials_examined	Additional material examined. Canada. AB: Edmonton, " Em. 31 - 8 - 71 ", ex honeysuckle (1 ♀, CFS), Edmonton, White Mud Creek, G. C. D. Griffiths, died after spraying, 9. vii. 1975 (2 ♂ 1 ♀, CNC), 14. vii. 1975 (3 ♂ 3 ♀, UASM), 23. vii. 1975 (6 ♂ 8 ♀, UASM), Elk Island Nat. Park, 19. vi. 1971, from larvae on Symphoricarpos occidentalis, emerged 13 - 14. v. 1972, E 50, G. C. D. Griffiths (3 ♂ [with puparia], UASM), Elk Island Nat. Park, 4. vii. 1971, from larva on Symphoricarpos occidentalis, emerged 11 - 13. v. 1972, E 87, G. C. D. Griffiths (6 ♂ 4 ♀ [with puparia], UASM), Edmonton, 15. ix. 1973, from larvae on Lonicera dioica, emerged 18 - 26. iv. 1974, E 203, G. C. D. Griffiths (1 ♂ 2 ♀ [with puparia], UASM), Edmonton, White Mud Creek, 11 - 12. vi. 1975, from larvae on Symphoricarpos occidentalis, emerged 5 - 7. vii. 1975, E 220, G. C. D. Griffiths (8 ♂ 6 ♀ [with puparia], UASM), Edmonton, White Mud Creek, 19. vi. 1975, from larva on Symphoricarpos albus, emerged 11 - 13. vii. 1975, E 226, G. C. D. Griffiths (3 ♂ 1 ♀ [with puparia], UASM), Edmonton, White Mud Creek, 23. ix. 1975, from larvae on Symphoricarpos occidentalis, emerged 18. iv. 1976, E 286, G. C. D. Griffiths (1 ♀ [with puparium], UASM), C. E. Lee Sanctuary, Devon Sandhills, 25. viii. 1979, from larvae on Symphoricarpos occidentalis, emerged 27. iv. 1980, E 396, G. C. D. Griffiths (3 ♂ [with puparia], UASM), George Lake, near Busby, 12. vi. 1973, from larva on Symphoricarpos albus, emerged 22 - 24. iv. 1974, G 12, G. C. D. Griffiths (4 ♂ 4 ♀ [with puparia], UASM), George Lake, near Busby, 2. vii. 1975, from larva on Symphoricarpos albus, emerged 21. vii. 1975, 19 - 21. iv. 1976, G 41, G. C. D. Griffiths (2 ♂ 2 ♀ [with puparia], UASM), George Lake, near Busby, 27. vii. 1875, from larvae on Lonicera dioica, emerged 11. v. 1976, G 52, G. C. D. Griffiths (1 ♂ 1 ♀ [with puparia], UASM), Brandon, 18. vii. 1958, R. B. Madge (1 ♀, CNC), Morrin, 12. vi. 1929, G. F. Manson (1 ♂, CNC), Lethbridge, J. H. Pepper, 3. vi. 1929 (1 ♂, CNC), 5. vi. 1929 (1 ♂, CNC), Okotoks, K. A. Spencer, 10. vi. 1966 (1 ♀, CNC), 11. vi. 1966 (1 ♀, CNC), BC: Robson, H. R. Foxlee, 10. v. 1947 (1 ♀, CNC), viii. 1947 (1 ♀, CNC), 6. v. 1950 (1 ♀, CNC), 26. v. 1947 (1 ♂, CNC), Elkwater L., 20. vii. 1956, O. Peck (1 ♂ 1 ♀, CNC), Trinity Valley, 22. vi. 1937, H. B. Leech (1 ♀, CNC), Hagensborg, 12. vii. 1992, A. Borkent (1 ♂, CNC), 50 km E Bella Coola, 8. vii. 1992, A. Borkent (1 ♂, CNC), ON: Simcoe, 29. v. 1939, G. E. Shewell (1 ♀, CNC), Ottawa, 5. vii. 1938, G. E. Shewell (1 ♀, CNC), Ottawa, 16. x. 1956, J. R. Vockeroth (1 ♀, CNC), St. Lawrence Is. Nat. Park, Thwartway Is., 20. vi. 1976, W. Reid (1 ♀, CNC), QC: Wakefield, 26. vi. 1946, G. E. Shewell (1 ♀, CNC), Mt. St. Hilare, 500 - 700 ', 3. vi. 1964, J. R. Vockeroth (1 ♀, CNC), SK: 18 km S Maple Creek, by small clear stream, 49 ° 45 ' N, 109 ° 29 ' W, 10. vii. 2005, J. R. Vockeroth, yellow pan trap, CNC 287400 (1 ♀, CNC). USA. CA: San Diego Co., Julian, Symphoricarops, 4300 ', 9. iv. 1977, K. A. Spencer (1 ♀, USNM), Cuyamaca, S. P, 20. iv. 1977, 4200 ', K. A. Spencer (1 ♀, USNM), Alameda Co., Berkeley, [illegible], 15. v. 1977, on Lonicera involucrata, K. A. Spencer (1 ♀, USNM), CO: Boulder, Flagstaff Cn., 5800 ', 10. vi. 1961, C. H. Mann (1 ♂, CNC), IA: Winneshiek Co., 43 ° 26 ' 32.50 " N, 92 ° 0 ' 10.32 " W, 17. vi. 2013, em. by 6. vii. 2013, M. J. Hatfield, ex Triosteum aurantiacum (1 ♂, CNC), ID: Waha, 30. v. 1924, A. L. Melander (1 ♀, USNM), IL: White Heath, 18. v. 1917 (1 ♀, USNM), 2. vi. 1917 (1 ♀, USNM), KS: Nat. Hist. Res., Lawrence, 28. iv. 1936, J. G. Chillcott (1 ♂, USNM), Nat. Hist. Res., Lawrence, J. G. Chillcott, 27. iii. 1954 (4 ♂, CNC), 28. iii. 1956 (1 ♂, CNC), 28. iv. 1956 (2 ♂, CNC), 27. iii. 1957 (1 ♂, CNC), MA: Hampshire Co., Pelham, Butter Hill Wildlife Sanctuary, 2. vi. 2015, em. 23 - 27. vi. 2015, C. S. Eiseman, ex Diervilla lonicera, # CSE 1646, CNC 564730, CNC 564731 (2 ♂, CNC), MD: Chesapeake Bch., 5. vii. 1924, J. R. Malloch (1 ♀, USNM), NC: Scotland Co., Laurinburg, St. Andrews University, 14. iv. 2016, T. S. Feldman, Lonicera sempervirens, em. 13. v. 2016, # CSE 2460, CNC 653946, CNC 653947 (2 ♀, CNC), WI: Valleyford, A. L. Melander, 25. vi. 1924 (3 ♂, USNM), 19. vi. 1924 (1 ♀, USNM), 17. v. 1924 (1 ♀, USNM).	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
54AF877161C72C9E5CD5C4EAED47CEBE.taxon	description	Figs 89, 442 - 445	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
54AF877161C72C9E5CD5C4EAED47CEBE.taxon	description	Description (Fig. 89). Wing length 1.6 mm (♂), 2.2 mm (♀). Vein dm-m absent. Eye height divided by gena height: 1.8 - 2.1. Gena very high and broadly rounded. Fronto-orbital plate projecting, but not as prominent as broad, rounded parafacial and cheek. Ocellar triangle slightly larger than tubercle, weakly defined, corners rounded. Vein M 1 + 2 spectral and close to wing apex, M 4 and CuA + CuP similarly weak. Body with faint greyish pruinosity that is slightly denser on thorax. Chaetotaxy: Two ori; two ors (possibly three ors and one ori). Postocellar and ocellar setae well-developed. Orbital setulae few, minute, slightly reclinate. Four dorsocentrals; one presutural, length decreasing anteriorly. Four rows of acrostichal setulae, becoming two irregular rows posteriorly. Colouration: Setae light yellow to slightly brownish, with notal setae brown to black in female and sometimes browner posteriorly on notum in male. Body predominantly lemon yellow; ocellar tubercle brown; small brown spots sometimes present lateral to vertical setae; back of head with broad brown stripe extending from foramen; mediotergite and sometimes anterior region of anatergite brown; scutum with medial stripe ending before posterior dorsocentral, fused anteriorly (examined European specimen) or completely to one pair of posteriorly narrowing intra-alar stripes that reach neither anterior nor posterior margins; pleuron with small light greyish brown spots ventrally on katatergite and meron. Halter yellow. Calypter white. Wing veins light yellow. Genitalia: (Figs 442 - 445) Epandrium pale and broad. Surstylus large, broadly rounded and twisted so that setulose inner face visible posteriorly. Subepandrial sclerite subrectangular, flat, weakly sclerotised and bare. Hypandrium small, thin, and broadly rounded; inner lobe with two setae. Postgonite large, broad, and thick with flat dorsum, inner-posterior ridge, long posterobasal extension, and pointed apical process on inner face. Phallophorus fused to base of single plate of basiphallus, which is membranous on right margin and bifid apically. Distiphallus membranous and flagellate; paraphallus distinct, narrow, and medially curved. Ejaculatory apodeme small and pale past base and with apex clear.	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
54AF877161C72C9E5CD5C4EAED47CEBE.taxon	distribution	Distribution. USA: CO, DE *, MD *. Europe, extending eastward to Kazakh Republic.	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
54AF877161C72C9E5CD5C4EAED47CEBE.taxon	materials_examined	Material examined. GERMANY. Berlin, Dahlem, 19. v. 1953, mine an Salix alba, No. 5941, CNC 165187 (1 ♂, CNC). USA. DE: Bridgeville, 14. vii. 1960, willow, P. Burbutis (2 ♂ 2 ♀ [with mined leaf], USNM), Bridgeville, 15. vi. 1960, willow leaf miner, P. Burbutis (1 ♂, USNM), MD: Montgomery Co., Colesville, 26. vi. 1977, Malaise trap, W. W. Wirth (1 ♀, USNM).	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
0E37BE8AA257D80C5C00DF634D5E7B16.taxon	description	Figs 446 - 451	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
0E37BE8AA257D80C5C00DF634D5E7B16.taxon	description	Description (from Eiseman and Lonsdale 2018). Wing length 2.1 - 2.5 mm (♂), 2.6 mm (♀). Length of ultimate section of vein M 4 divided by penultimate section: 2.1 - 2.3. Eye height divided by gena height: 4.5 - 5.3. First flagellomere rounded. Arista pubescent. Notum subshiny. Chaetotaxy: Two ori; two ors. Postocellar and ocellar setae well-developed. Three dorsocentral setae, third thin, <1 / 2 length of second dorsocentral. Six rows of acrostichal setulae. Two posteromedial setae on mid tibia. Colouration: Setae dark brown. Head yellow with back of head, clypeus, palpus, ocellar tubercle and antenna dark brown; frons brownish in posterolateral corner, with faint stripe to base of posterior ors along fronto-orbital plate that is slightly darker in tentatively associated female. Thorax dark brown with postpronotum (excluding dark anteromedial spot confluent with margin), notopleuron (excluding dark elongate sublateral spot) and small anterolateral spot behind suture yellow; posterodorsal corner of anepisternum yellow along suture. Calypter margin yellow and hairs brown. Halter white. Legs and abdomen dark brown with fore knee yellow. Genitalia: (Figs 446 - 451) Basiphallus composed of one pair of lateral sclerotised bars on distal 1 / 2. Paraphallus absent. Hypophallus short and entirely membranous. Mesophallus short, slightly longer than wide, round and slightly compressed dorsoventrally; minute, dark medial sclerite present between mesophallus and distiphallus. Distiphallus short with tubules fused and folded, lateral margins sclerotised at stem-like base, short medial bowl with inner face heavily spinulose. CT males with bowl of distiphallus narrower and inner processes separate and not as strongly haired.	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
0E37BE8AA257D80C5C00DF634D5E7B16.taxon	distribution	Distribution. USA: CT, MA, NC, NY, WV.	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
0E37BE8AA257D80C5C00DF634D5E7B16.taxon	materials_examined	Additional material examined. USA. MA: Plymouth Co., W Bridgewater, 41 ° 59 ' 44.50 " N, 71 ° 3 ' 18.48 " W, 15. viii. 2013, ex. Bidens frondosa, em. by 5. v. 2014, C. S. Eiseman, # CSE 1101, CNC 384790 (1 ♀, CNC).	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
86BF6ED9B25F6FD0FEA69F4C36DC9035.taxon	description	Figs 452 - 455	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
86BF6ED9B25F6FD0FEA69F4C36DC9035.taxon	description	Description. Wing length 1.8 mm (♂). Female unknown. Length of ultimate section of vein M 4 divided by penultimate section: 1.6 - 2.4. Eye height divided by gena height: 3.4 - 3.6. First flagellomere rounded. Notum shiny. Chaetotaxy: Two ori; two ors. Postocellar and ocellar setae well-developed, the latter slightly smaller. Two well-developed dorsocentral setae. Six rows of acrostichal setulae. Ocellar seta slightly less developed than postocellar. Two posteromedial setae on mid tibia. Colouration: Setae dark brown. Head yellow with back of head, clypeus, palpus, ocellar tubercle and antenna dark brown; frons brownish in posterolateral corner with light brown stripe extending from posterior margin to base of posterior ors along fronto-orbital plate Thorax dark brown with postpronotum (excluding dark anteromedial spot confluent with margin), notopleuron (excluding dark elongate sublateral spot) and small anterolateral spot behind suture yellow. Halter white. Calypter margin light brown with brown hairs. Legs and abdomen dark brown with fore knee narrowly yellow. Genitalia: (Figs 452 - 455) Epandrium and surstylus with dense patch of tubercle-like setae on inner-distal margin. Hypandrium narrow, inner lobe following dorsal margin of postgonite and with two short setae on inner face. Postgonite short, pointed apically, with two outer-distal setulae. Basiphallus broadly sclerotised dorsally. Paraphallus nearly vestigial, produced as lightly sclerotised triangular extensions of membrane. Hypophallus large and broad with basolateral margins and triangular medial section well-sclerotised. Distiphallus and mesophallus short and subequal in length, fused; mesophallus constricted medially; distiphallus subcylindrical, undivided, widest at base; medial floating sclerite absent.	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
86BF6ED9B25F6FD0FEA69F4C36DC9035.taxon	distribution	Distribution. USA: CA, DE *, KS *, MO *, SC *, TX *.	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
86BF6ED9B25F6FD0FEA69F4C36DC9035.taxon	materials_examined	Material examined. USA. CA: Riverside, 2. xii. 1934, A. L. Melander (1 ♂, USNM), DE: Georgetown, 3. viii. 1977, W. R. Allen, " 79 - 3513 ", ex. trap in soy bean plot (1 ♂, USNM), KS: Riley Co., 4. ix. 1967, G. F. Hevel (1 ♂, USNM), MO: Boone Co., Columbia, 4. ix. 1968, Malaise trap, F. D. Parker (1 ♂, USNM), SC: " Spartanbrg ", G. G. Ainslie, Webster No. 4853 (1 ♂, USNM), TX: San Antonio, 2. iv. 1942, A. L. Melander (1 ♂, USNM).	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
0E686491700F68CCDA16B9FD7516D787.taxon	description	Figs 98, 456 - 459	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
0E686491700F68CCDA16B9FD7516D787.taxon	description	Description (Fig. 98). Wing length 2.8 - 3.5 mm (♂), 3.0 - 3.7 mm (♀). Length of ultimate section of vein M 4 divided by penultimate section: 1.9 - 2.6. Eye height divided by gena height: 4.7 - 6.0. First flagellomere circular, slightly longer than wide. Fronto-orbital plate slightly visible anteriorly (viewed laterally). Notum subshiny. Chaetotaxy: Two ors, three or four ori. Postocellar and ocellar setae well-developed. Three dorsocentral setae; anterior seta <1 / 2 length of second dorsocentral. Eight to ten rows of acrostichal setulae. Two posteromedial setae on mid tibia. Colouration: Setae dark brown. Head yellow with back of head, clypeus, palpus and ocellar tubercle dark brown; antenna dark brown with scape and pedicel paler and / or with distal margin yellowish; frons brown to dark brown in posterolateral corner with spot usually reaching base of inner vertical seta Thorax dark brown with postpronotum (excluding dark anteromedial spot confluent with margin), notopleuron (excluding dark elongate sublateral spot), lateral postsutural margin and large posterolateral spot on scutum yellow; most sutures on pleuron yellow with posterodorsal corner of anepisternum and anepimeron around wing base more widely yellow. Halter white. Calypter margin and hairs brown. Legs and abdomen dark brown with fore knee and male cercus and perianal region yellow. Genitalia: (Figs 456 - 459) Epandrium and surstylus with dense patch of tubercle-like setae on inner-distal margin. Hypandrium thin, inner lobe extending to surround outer surface of postgonite, with one seta. Postgonite small and simple. Basiphallus sclerotised laterally and anterodorsally, confluent with hypophallus. Paraphallus absent. Hypophallus long and narrow with sides sclerotised on basal 2 / 3. Distiphallus and mesophallus subequal in length; mesophallus dorsoventrally compressed, subovate in ventral view. Distiphallus with tubules short, with narrow, mostly clear basal stem, outer cover short and spinulose, and inner process coiled, long-haired and widely exposed.	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
0E686491700F68CCDA16B9FD7516D787.taxon	distribution	Distribution. Canada: ON. USA: CA *, MA, MD *, ME, MN, NY, PA, VA *, WI.	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
0E686491700F68CCDA16B9FD7516D787.taxon	materials_examined	Additional material examined. Canada. ON: Bells Corners, 30. viii. 1984, H. J. Teskey, ex Arctium, " REARED Assoc. Vial ", CNC 391398, CNC 391399 (1 ♂ 1 ♀, CNC), Ottawa, Central Experimental Farm, 8. vii. 2014, O. Lonsdale, Arctium sp., em. 28. vii. 2014, CNC 352948, CNC 349315 - 349318 (10 ex, CNC), St. Lawrence Is. Nat. Park, McDonald Is., 23. viii. 1976, A. Carter, Code 4497 - A, CNC 391403 (1 ♀, CNC), St. Lawrence Is. Nat. Park, Thwartway Is., 10. viii. 1976, G. Calderwood, Code 4382 - P, CNC 391402 (1 ♀, CNC), Wallacetown, 18. ii. 1980, " no host ", det. lot 80 - 1283, 9, 795 - 2319 - 01, CNC 391400 (1 ♂, CNC). USA. CA: Mpls. Orium, Minnehaha, [illegible], 3. viii. 1980, mine Eupatorium rugosum, 29. vi. 1980 (1 ♂, USNM), IL: White Heath, 25. vi. 1939, J. C. Dirke, herb No. 45 (1 ♂, USNM), MA: Berkshire Co., Savoy, Tannery Falls, 12. vii. 2012, C. S. Eiseman, ex leaf mine Eupatorium perfoliatum, em. 31. vii. 2012, # CSE 15, CNC 391394 - 391396 (1 ♂ 2 ♀, CNC), Franklin Co., Northfield, 276 Old Wendell Rd., 8. ix. 2013, C. S. Eiseman, ex Arctium minus, em. 11. x. 2013, em. 17. iv. 2014, # CSE 936, # CSE 1083, CNC 392639, CNC 384749 - 384753 (3 ♂, 3 ♀, CNC), MD: Elkron, 84 - 31, DFB, em. viii. 1984, " Hoor? " (1 ♂, USNM), VA: Great Falls, 9. vii. 1936, A. L. Melander (1 ♂, USNM).	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
FDE602CC3B4110294BB1DA98A920B599.taxon	description	Figs 460 - 463	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
FDE602CC3B4110294BB1DA98A920B599.taxon	description	Description (Fig. 463). Wing length 2.3 - 2.5 mm (♂), 2.5 - 2.9 mm (♀). Length of ultimate section of vein M 4 divided by penultimate section: 1.9 - 2.6. Eye height divided by gena height: 3.8 - 4.8. First flagellomere circular. Notum subshiny. Chaetotaxy: Two ori; two ors; third ori sometimes present on one side. Ocellar seta long, but sometimes not much longer than tubercle. Postocellar well-developed. Two well-developed dorsocentral setae, with setula in front of anterior dorsocentral short but well-developed, appearing as third dorsocentral. Six rows of acrostichal setulae. Two posteromedial setae on mid tibia. Colouration: Setae dark brown. Head yellow with back of head, clypeus, palpus, ocellar tubercle and antenna dark brown; frons brownish in posterolateral corner. Thorax dark brown with postpronotum (excluding dark anteromedial spot confluent with margin), notopleuron (excluding dark elongate sublateral spot) and lateral margin of postsutural scutum yellow. Halter white. Calypter margin and hairs brown. Legs and abdomen dark brown with fore knee yellow. Genitalia: (Figs 460 - 462) Epandrium and surstylus with dense patch of tubercle-like setae on inner-distal margin. Hypandrium narrow, lobe wrapped around postgonite, with one anteromedial seta. Postgonite narrow posteriorly and strongly tapered apically. Basiphallus sclerotised laterally and subapically, ventral membrane also slightly sclerotised. Hypophallus short, rounded and lightly sclerotised laterally at base. Paraphallus pointed, strongly sclerotised, not connected medially by membrane. Mesophallus as long as basiphallus and subcylindrical. Distiphallus globular and undivided with subbasal constriction and paired ventromedial sclerotised bands.	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
FDE602CC3B4110294BB1DA98A920B599.taxon	distribution	Distribution. USA: IL, IN, MD, MN, NY, PA, SD, VA, WI (?).	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
FDE602CC3B4110294BB1DA98A920B599.taxon	materials_examined	Additional material examined. USA. MD: Elkton, 84 - 53, DFB, em. 28. viii. 1984, a leaf miner (1 ♀, USNM), VA: Fairfax Co., Turkey Run Park, nr. Mouth of Turkey Run, 38 ° 57.9 ' N, 7 ° 09.4 ' W, Malaise trap, 4 - 27. ix. 2007, D. R. Smith (1 ♀, USNM).	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
E164D970853CCD8264D5728A63EC9BE2.taxon	description	Figs 464, 465	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
E164D970853CCD8264D5728A63EC9BE2.taxon	description	Description. Wing length 3.1 - 3.2 mm (♂), 2.9 - 3.3 mm (♀). Length of ultimate section of vein M 4 divided by penultimate section: 2.3 - 2.5. Eye height divided by gena height: 3.4 - 4.1. First flagellomere circular. Notum with relatively dense greyish pruinosity. Chaetotaxy: Three or four ori, with anterior seta sometimes smaller; two ors. Postocellar and ocellar setae well-developed. Six closely spaced dorsocentrals, two presutural, decreasing in size anteriorly. Acrostichal setulae usually in five to six irregular rows; relatively long and sparse. Two posteromedial setae on mid tibia. Colouration: Setae dark brown. Head yellow with back of head, clypeus, palpus, ventral margin of gena, ocellar triangle (slightly larger than tubercle with corners rounded) and antenna dark brown; frons dark brown in posterolateral corner with stripe extending anteriorly to base of anterior ors, with stripe sometimes broadly enclosing both ors and (sometimes) posterior ori and with lateral margin of eye thinly brown, or fronto-orbital plate with variable mottling near bases of ori (fainter anteriorly); dorsomedial section of parafacial sometimes brown; face evenly dark brown or with pigment faded medially and ventrally. Thorax dark brown with postpronotum (excluding dark anteromedial spot confluent with margin), notopleuron (excluding dark elongate sublateral spot) and supra-alar spot yellow. Halter white. Calypter margin and hairs dark brown. Legs dark brown. Abdomen dark brown, tergites 1 - 5 with narrow yellow band along posterior margin. Genitalia: (Figs 464, 465) Epandrium and surstylus with dense patch of tubercle-like setae on inner-distal margin. Hypophallus broad and membranous with medial sclerotisation that is divided on basal 1 / 2 and with short supapical projection. Basiphallus sclerotised dorsally. Paraphallus absent. Mesophallus slightly broader at midpoint and ~ 2.5 x longer than wide. Distiphallus bifid, widest apically, and with inner fringe of hairs concealed within small apical cup; floating medial sclerite minute. Ejaculatory apodeme dark and fan-shaped with sublateral sclerotised band and marginal striations on blade; sperm pump sclerotised ventrally.	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
E164D970853CCD8264D5728A63EC9BE2.taxon	distribution	Distribution. Canada: ON, QC. USA: MD, IL, CA, NY, VA, WV *.	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
E164D970853CCD8264D5728A63EC9BE2.taxon	materials_examined	Additional material examined. Canada. ON: Wellington Co., Guelph, Stone Rd. E, 16. ix. 1991, Malaise, R. A. Cannings (1 ♀, RBCM). USA. VA: Blacksburg, 2100 ', 28. v. 1962, J. G. Chillcott, CNC 391405 (1 ♀, CNC), WV: Elk Garden, 25. vi. 1968, R. and E. Froeschner (1 ♀, USNM), Logan Co., Island Creek, 2 mi N Mountain View, 19. vi. 1991, S. M. Clark (1 ♀, VPIC).	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
F84DDCBDC42ED1F2B06D0DB44384AE24.taxon	description	Figs 94, 95, 466 - 469	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
F84DDCBDC42ED1F2B06D0DB44384AE24.taxon	description	Description (Figs 94, 95). Wing length 1.4 - 1.6 mm (♂), 1.6 - 2.0 mm (♀). Length of ultimate section of vein M 4 divided by penultimate section: 2.6 - 3.5. Eye height divided by gena height: 1.5 - 4.1. First flagellomere with shallow angle on anterodorsal margin. Notum with light pruinosity. Chaetotaxy: Two ori; two ors. Ocellar seta thin, not much longer than tubercle to slightly longer. Postocellar well-developed. Two well-developed dorsocentral setae, setula in front of anterior dorsocentral relatively well-developed but short, sometimes appearing as third dorsocentral. Six rows of acrostichal setulae, less commonly four. One posteromedial seta on mid tibia that is sometimes reduced to absent. Colouration: Setae dark brown. Head yellow with back of head, clypeus, palpus, ocellar triangle (slightly larger than tubercle and rounded) and antenna dark brown; frons brownish to brown in posterolateral corner to base of posterior ors; sometimes fronto-orbital plate brownish to brown to level of anterior ors, sometimes with lateral margin very thinly brownish along margin of eye and around base of fronto-orbitals (less commonly with plate entirely brown to base of anterior fronto-orbital); face and lower margin of gena dark brown with face often slightly paler along midline; dorsomedial region of parafacial brownish. Thorax dark brown with postpronotum (excluding dark anteromedial spot confluent with margin), notopleuron (excluding dark elongate sublateral spot) and sometimes small anterolateral spot behind suture yellow. Halter white. Calypter margin and hairs white. Legs and abdomen dark brown. Genitalia: (Figs 466 - 469) Epandrium and surstylus with dense patch of tubercle-like setae on inner-distal margin. Hypandrium with one seta on inner lobe that surrounds postgonite. Postgonite rounded apically and deeply cleft. Basiphallus well-sclerotised dorsolaterally on left side and dorsoapically. Hypophallus with one pair of long, narrow sclerites approximately as long as basiphallus with irregular outline and small inner-basal process. Paraphallus rod-like with base wider; paraphalli diverging, angled anteroventrally, joined basally by narrow transverse sclerite. Mesophallus slightly longer than basiphallus, slightly bulbous at base; small sclerite between mesophallus and distiphallus absent. Distiphallus with two short, dark, completely divided tubules that are relatively broadly separated, especially at tapered base; base slightly compressed in lateral view, apex slightly swollen and cup-like with apical opening constricted and directed distally; inner fringed structure slightly emerged apically. Ejaculatory apodeme similar to that of C. platyptera.	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
F84DDCBDC42ED1F2B06D0DB44384AE24.taxon	distribution	Distribution. Canada: AB *, ON, QC, SK, YT. USA: widespread, but not known from FL. Africa. Australia. Argentina. Chile. Europe. Oriental Region.	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
F84DDCBDC42ED1F2B06D0DB44384AE24.taxon	materials_examined	Material examined. 45 ♂ 64 ♀, CNC, USNM (USA: AR, AZ, CA, DC, IN, KS, MA, MD, MS, NC, NM, NV, OH, OK, SC, TX, UT, VT, WA, WI; Canada: SK; Germany).	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
7D535149C7A4BAFCF8CB6D85D04EB438.taxon	description	Figs 97, 475 - 477	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
7D535149C7A4BAFCF8CB6D85D04EB438.taxon	description	Description (Fig. 97). Wing length 1.8 - 2.0 mm (♂), 1.9 - 2.2 mm (♀). Length of ultimate section of vein M 4 divided by penultimate section: 2.3 - 2.8. Eye height divided by gena height: 4.6 - 5.0. First flagellomere circular. Notum subshiny. Chaetotaxy: Two ori; two ors. Ocellar seta slightly thinner and shorter than well-developed postocellar. Two well-developed dorsocentral setae. Six rows of acrostichal setulae. Two or three posteromedial setae on mid tibia. Colouration: Setae dark brown. Head yellow with back of head, clypeus, palpus, ocellar triangle (restricted to, or barely larger than tubercle) and antenna dark brown; frons brown in posterolateral corner to base of posterior ors along fronto-orbital plate, and lateral margin of frons usually brownish to level of anterior ors; if fronto-orbital plate with stripe reduced to faded brownish stripe reaching posterior ors (uncommon), apex of fore femur narrowly yellow; face usually yellow with small brownish spot below base of antenna faintly, but sometimes light brown to brown on dorsal 1 / 2. Thorax dark brown with postpronotum (excluding dark anteromedial spot confluent with margin), notopleuron (excluding dark elongate sublateral spot) and small anterolateral spot behind suture yellow. Halter white. Calypter margin and hairs brown. Legs and abdomen dark brown. Genitalia: (Figs 97, 475 - 477) Epandrium and surstylus with dense patch of tubercle-like setae on inner-distal margin. Hypandrium thin, with one seta on broad inner lobe. Postgonite bare, simple. Basiphallus sclerotised along distal and left lateral margins. Paraphalli leaf-like, not meeting, lightly and gradually sclerotised medially; left lobe reduced. Hypophallus broad apically, sclerotised along base and right lateral margin. Mesophallus nearly as wide as long, slightly expanded distolaterally. Distiphallus entirely divided with stalk absent, base bulbous and subspherical, outer cover narrow and pointed laterally, and inner process well-developed. Ejaculatory apodeme as long as phallus, stem stout and blending into slightly flared blade with clear distal margin.	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
7D535149C7A4BAFCF8CB6D85D04EB438.taxon	distribution	Distribution. Canada: ON. USA: AZ, CA, DC, FL, IN, MA, MD, MS, NC, NM, NY, OK, PA, TX, VA *, WI. Argentina. Bahamas. Brazil. Chile. Dominican Republic *. Jamaica. Mexico. Panama. Venezuela.	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
7D535149C7A4BAFCF8CB6D85D04EB438.taxon	materials_examined	Additional material examined. Bahamas. New Providence Isl.: Nassau, 3. i. 1953, E. B. Hayden and L. Giovannoli, A. M. N. H. Bahama Isls. Exped., CNC 391453 (1 ♂, CNC). Canada. ON: Harrow, 29. ix. 1968, H. R. Boyce, leaf mine Abutilon theophrasti, CNC 391459, CNC 391460 (1 ♂, 1 ♀, CNC). Dominican Republic. Espaillat Prov., 24. viii. 1967, L. H. Rolston, CNC 391451 (1 ♂, CNC). USA. AZ: Tempe, V. L. Wilder, Webster No. 7286 (1 ♀ 3 ♂, USNM), FL: Gainesville, 25. iv. 1952, O. Peck, CNC 391452 (1 ♂, CNC), Homestead, 28. iii. 1952, G. S. Walley, CNC 391455 (1 ♀, CNC), J. R. Vockeroth, CNC 391454 (1 ♂, CNC), 4. iv. 1952, G. S. Walley, CNC 391457 (1 ♀, CNC), J. R. Vockeroth, CNC 391456, CNC 391458 (2 ♀, CNC), IN: Lafayette, leaf-miner in Abutilion theophrasti, J. M. Aldrich (1 ♂ 1 ♀ [with puparia], USNM), Lafayette, bred from hollyhock 16. xi. 1913, J. M. Aldrich (2 ♂ 2 ♀, USNM), Lafayette, hollyhock leaf miner 2 - 5. viii, emerged? (1 ♂ [with puparium], USNM), " x- 17 ", " leaf miner in Malva rot .. folia ", J. M. Aldrich (1 ♂ 2 ♀, USNM), Lafayette, cage No. C 1367 a, issued by x. 18.15, reared from Sida spinosa, Satterthwalt (1 ♀, USNM), Lafayette, 19. ix. 1915, cage No. C 1367 b, issued by Jan 10, reared from Sida spinosa, Satterthwalt (1 ♀, USNM), Lafayette, from Malva rotundifolia (1 ♂, USNM), Lafayette, from Malva rotundifolia, 15. xi. 1913 (1 ♂, USNM), MA: Hampshire Co., Pelham, Quarry St., 2. vii. 2013, ex. Malva cf. rotundifolia, em. 13 - 15. vii. 2013, C. S. Eiseman, # CSE 686, CNC 384778 (1 ♂, CNC), MS: Shaw, 24. x. 1979, H. Walker, ex. leaf mines on Abutilon theophrasti (1 ♂ 2 ♀, USNM), NC: Scotland Co., Laurinburg, St. Andrews University, 17. viii. 2015, T. S. Feldman, Sida rhombifolia, em. 28. viii-ix. 2015, # CSE 2119, CNC 653958 - 653965 (5 ♂ 3 ♀, CNC), 29. vi. 2016, T. S. Feldman, em. 14. vii. 2016, # CSE 2754, CNC 659975 (1 ♀, CNC), OK: Payne Co., Perkins, 30. vi. 2015, M. W. Palmer, Senna marilandica, em. by 12. vii. 2015, # CSE 1821, CNC 564700 - 564702 (2 ♂ 1 ♀, CNC), Payne Co., Mehan, 7. vii. 2016, M. W. Palmer, Senna marilandica, em. by 31. vii. 2016, # CSE 3047, CNC 653983, CNC 653984 (1 ♂ 1 ♀, CNC), VA: Fairfax Co., Great Falls Park, quarry, 38 ° 59.1 ' N, 77 ° 14.8 ' W, Malaise trap, 30. x- 28. xi. 2007, D. R. Smith (1 ♂, USNM).	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
27560F1ACD3C169EEBD2F9F567D85552.taxon	description	Figs 478, 479	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
27560F1ACD3C169EEBD2F9F567D85552.taxon	description	Description. Wing length 2.3 - 2.7 mm (♂), 2.7 mm (♀). Length of ultimate section of vein M 4 divided by penultimate section: 2.3 - 2.7. Eye height divided by gena height: 2.5 - 2.6. First flagellomere circular. Notum subshiny. Chaetotaxy: Setae relatively stout, including dark brown orbital setulae. Two ori, sometimes with additional ori present anteriorly; two ors. Postocellar and ocellar setae both long, well-developed. Two well-developed dorsocentral setae, setula in front of anterior dorsocentral slightly enlarged. Six rows of acrostichal setulae. Two posteromedial setae on mid tibia. Colouration: Setae dark brown. Head yellow with back of head, clypeus, palpus, ventral margin of gena, ocellar tubercle and antenna dark brown; frons dark brown in posterolateral corner and along orbital plate to anterior ors or slightly past level of posterior ors; with minute brown spots at base fronto-orbitals anterior to stripe; dorsal 1 / 2 of face brown. Thorax dark brown with postpronotum (excluding dark anteromedial spot confluent with margin), notopleuron (excluding dark elongate sublateral spot) and small anterolateral spot behind suture yellow. Halter white. Calypter margin and hairs golden yellow with margin sometimes brownish. Legs and abdomen dark brown. Genitalia: (Figs 478, 479) Epandrium and surstylus with dense patch of tubercle-like setae on inner-distal margin. Hypandrium with one seta on broadly rounded and partially membranous inner lobe. Postgonite bare. Basiphallus sclerotised dorsolaterally and anteromedially, slightly produced on left lateral margin. Hypophallus approximately as long as mesophallus, subrectangular with apex downcurved, nearly parallel-sided. Paraphallus 2 / 3 length of mesophallus, abruptly widened on distal 1 / 3, inner margin ill-defined. Mesophallus narrow, dark, subcylindrical with slight ventral curve at apex, broader and rounded at base, and slightly widening apically; small narrow floating sclerite near ventroapical margin of mesophallus. Distiphallus dark, short inner structures concealed, widest when viewed laterally with rounded apex and narrower stem (~ 2 / 3 width of distal part); when viewed ventrally, stem-like basal section narrowing to midpoint and distal section abruptly widened.	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
27560F1ACD3C169EEBD2F9F567D85552.taxon	distribution	Distribution. USA. ME, NY, TN, VA.	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
5A0F96E99B3DAF29057F35B0F3172B12.taxon	description	Figs 472 - 474	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
5A0F96E99B3DAF29057F35B0F3172B12.taxon	description	Description. Wing length 1.5 - 1.8 mm (♂), 1.6 - 2.2 mm (♀). Length of ultimate section of vein M 4 divided by penultimate section: 2.4 - 3.1. Eye height divided by gena height: 3.7 - 5.1. First flagellomere circular. Notum subshiny to variably pruinose. Chaetotaxy: Two ori; two ors. Ocellar seta relatively thin and ~ 2 / 3 length of postocellar. Two well-developed dorsocentral setae. Acrostichal setulae in six straight to irregular rows. Two posteromedial setae on mid tibia, with one or both reduced to absent. Colouration: Setae dark brown. Head yellow with back of head, clypeus, palpus, ocellar tubercle and antenna dark brown; frons brown in posterolateral corner to base of posterior ors along fronto-orbital plate; dorsal 1 / 2 of face variably brown Thorax dark brown with postpronotum (excluding dark anteromedial spot confluent with margin), notopleuron (excluding dark elongate sublateral spot) and small anterolateral spot behind suture yellow. Halter white. Calypter margin and hairs white. Legs and abdomen dark brown. Genitalia: (Figs 472 - 474) Epandrium and surstylus with dense patch of tubercle-like setae on inner-distal margin. Inner lobe of hypandrium surrounding outer margin of postgonite and with one seta. Basiphallus broadly sclerotised on dorsal / left-lateral surface with apical corner on left side well-sclerotised and distinctly pointed. Hypophallus ca. as long as basiphallus, made up of one pair of narrow, irregular, rod-like sclerites. Paraphalli ill-defined, elongate, and pale with base darker; diverging at base and nearly parallel apically, fused to transverse bar emerging from base of mesophallus in front of point of duct insertion. Mesophallus slightly longer than basiphallus with base especially bulbous, contrasting longer, more slender sclerite in C. humeralis and C. solidaginis; small medial sclerite between mesophallus and distiphallus present. Distiphallus divided into two short tubules that have a dorsoventrally flattened " stem " that is marked laterally by a subbasal constriction; distal section slightly angled dorsally, relatively pale and with thin cover enclosing small fringed inner structure. Ejaculatory apodeme with stout asymmetrical base grading into sclerotised origin of duct and sclerotised bar across sperm pump; stem stout, blade not especially large, pale marginally.	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
5A0F96E99B3DAF29057F35B0F3172B12.taxon	distribution	Distribution. Canada: MB, NS, ON, SK. USA: CA, CO, FL, GA *, IA, IL *, IN *, KS, LA *, MA, MD *, MI *, MO *, MS, NC, OH *, OK, TN *, TX *, VA *, WV *. Argentina. Brazil. Cuba. Grand Cayman. Ecuador. Guadeloupe. Jamaica.	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
5A0F96E99B3DAF29057F35B0F3172B12.taxon	materials_examined	Material examined. Canada. MB: Aweme, 4. ix. 1912 [?], N. Criddle (1 ♀, USNM), Brandon, 1. vii. 1946, P. H. Westdal, coll. on potato (1 ♂, CFS), ON: Wellington Co., Stone Rd E, 16. ix. 1991, Malaise, R. A. Cannings (1 ♂, RBCM), Moose Factory, 10. vi. 1949, D. P. Whillans, CNC 391482 (1 ♂, CNC), SK: Sintaluta, 23. vii. 1987, A. Paton, reared from Iva xanthifolia, CNC 391466, CNC 391467 (1 ♂ 1 ♀, CNC). Grand Cayman: Georgetown, 15 - 30. iii. 1965, J. R. McLintock, Malaise trap, CNC 391471 (1 ♀, CNC). USA. CA: Los Angeles Co., " ace 255 ", ex. Zinnia leaf blotches, 1. ix. 1940, R. M. Bohart (1 ♀, USNM), Los Angeles, leaf-miner of Aplopappus squarrosa, bred in June, Coquillett (2 ♀, USNM), Los Angeles Co., Coquillett (1 ♂ 1 ♀, USNM), Napa / Lake Co., McLaughlin Reserve, 13. vii. 2015, E. LoPresti and C. S. Eiseman, Helianthus exilis em. 20. vii- 11. viii. 2015, # CSE 1811, CNC 564639 - 564646 (4 ♂, 4 ♀, CNC), CO: Boulder, 1828 m, 4. vi. 1961, B. H. Poole, CNC 391469 (1 ♀, CNC), FL: Orlando, 28. ii. 1918, " GGA ", J. M. Aldrich (1 ♀, USNM), Bade Co., farm near Royal Palm Hammock, 4. xii. 1961, Munroe, Holland and Chillcott, CNC 391477 (1 ♂, CNC), Chattahoochee, 26. iv. 1952, O. Peck, CNC 391480 (1 ♀, CNC), Everglades N. P., Paradise Key, 30. iii. 1953, W. R. M. Mason, CNC 391472 (1 ♂, CNC), Gainesville, 26. iv. 1952, O. Peck, CNC 391481 (1 ♂, CNC), Homestead, 4. iv. 1952, J. R. Vockeroth, CNC 391474 (1 ♂, CNC), Key Largo, 5 - 6. xii. 1961, Munroe, Holland and Chillcott, mercury vapour light, CNC 391473 (1 ♂, CNC), Miami-Dade Co., Redlands, 25 ° 31 ' N, 80 ° 30 ' W, 7. xi. 2011, R. Diaz and J. McClurg, reared from leaves of Mikania micrantha, CNC 391491, CNC 391490 (1 ♂ 1 ♀, CNC), Pasco Co., Moon L., 16. iv. 1952, J. R. Vockeroth, CNC 391479 (1 ♂, CNC), Quincy, 13. v. 1964, [K. A. Spencer], mine Xanthium, em. 18 - 26. v. 1964, CNC 391476 (2 ♂ / ♀, CNC), Sanford, 12. vi. 1964, [K. A. Spencer], ex Ambrosia artemisifolia, CNC 391478 (2 ♂, CNC), St. Lucie Co., Fort Pierce, U of FL quarantine, greenhouse # 3, 27 ° 26 ' N, 80 ° 25 ' W, 10. xi. 2011, R. Diaz and J. McClurg, colony, CNC 391485 - 391489 (1 ♂ 4 ♀, CNC), St. Lucie Co., Fort Pierce, near U of FL campus, 27 ° 26 ' N, 80 ° 25 ' W, 12. xi. 2011, R. Diaz and J. McClurg, reared from leaves of Mikania scandens CNC 391492 - 391494 (1 ♂ 2 ♀, CNC), E. D. Bennett, leaf miner Baccharis halimifolia, Lakewales, v. 1960 (1?, USNM), North Fort Charlotte (1 ♂, USNM), O'Neil (1 ♂ 1 ♀, USNM), Summerville S. C. (1 ♂, USNM), Daytona Beach, v. 1960, F. D. Bennett (1 ♀, USNM), GA: Richmond Hill, v. 1960, F. D. Bennett, coll. as adult on Baccharis halimifolia (1 ♀, USNM), Tifton, x. 1896, J. M. Aldrich (1 ♂, USNM), IA: Howard Co., Hayden Prairie State Preserve, 15. vii. 2015, C. S. Eiseman, Silphium perfoliatum, em. by 19 - 23. vii. 2015, # CSE 1743, CNC 654359, CNC 654360 (1 ♂ 1 ♀, CNC), IL: K-hook, " 6 - 7.32 ", hack, " 262 amb. ", ex. Ambrosia trifina, " Lawson, ' 33 ", IN: Logansport, 10. viii. 1915, J. M. Aldrich (1 ♀, USNM), Lafayette, J. M. Aldrich, 10. iv. 1915 (1 ♀, USNM), v. 1927 (2 ♀, USNM), " x. 13 " (2 ♂, USNM), " x. 15 " (2 ♂, USNM), " x. 16 " (1 ♀, USNM), Lafayette, J. M. Aldrich, from star-shaped mine in burdock, 29. ix. 1913 (1 ♀, USNM), Shelby, 24. v. 1914, J. M. Aldrich (1 ♀, USNM), KS: Riley Co., Konza Prairie, 3. vii. 2015, C. S. Eiseman, Helianthus annuus em. 13. vii. 2015, # CSE 1702, CNC 564652 (1 ♀, CNC), Medora, sand dunes, 17. iv. 1982, G. W. Sabrosky (1 ♀, USNM), Manhattan, D. A. Wilbur, 17. x. 1933 (1 ♀, USNM), 2. v. 1930 (1 ♀, USNM), 8. x. 1930 (1?, USNM), 17. ix. 1933 (1 ♂ 1 ♀, USNM), LA: Baton Rouge, 28. v. 1917, collected on Globe artichoke, T. H. Jones, Chittenden No. 4257 - 1, issued iv. 1917 (1 ♀, USNM), issued iii. 17 (1 ♂, USNM), issued 12. iii. 1917 (1 ♂, USNM), Lake Charles, 9. vi. 1917, J. M. Aldrich (2 ♀, USNM), MA: Franklin Co., Northfield, 263 Capt. Beers Plain Rd., 11. vii. 2012, C. S. Eiseman, ex Ambrosia artemisiifolia, em. 14. vii. 2012, CNC 391483, CNC 391484 (2 ♀, CNC), MD: Cabin john Bridge, 28. iv, " 19 / 2 ", Knab and Malloch (1 ♀, USNM), P. G. Co., Camp Springs, 16. vii. 1979, Malaise trap, G. F. Hevel (1 ♀, USNM), Colesville, 4. vi. 1977, W. W. Wirth (1 ♀, USNM), Cabin John, " x- 21 ", J. M. Aldrich (1 ♂, USNM), MI: S Haven, 23. vi. 1938, C. W. Sabrosky (1 ♀, USNM), Nottawa, 8. vi. 1941, C. W. Sabrosky (1 ♀, USNM), Hart, 20. vi. 1989, C. W. Sabrosky (1 ♀, USNM), E Lansing, 29. vii. 1941, C. Sabrosky (1 ♀, USNM), E Lansing, 6. viii. 1941, B. Wilson (1 ♀, USNM), St. Joseph, 28. vi. 1942, C. W. Sabrosky (1 ♂, USNM), Manhattan, 1. x. 1933, H. M. Smith (1 ♂, USNM), MO: McDonald Co., nr. Lanagan, 8. v. 1984, G. F. and J. F. Hevel (1 ♀, USNM), NC: Carteret Co., Atlantic Beach, 3 - 4. ix. 1986, G. F. and J. F. Hevel (1 ♂ 3 ♀, USNM), OH: Champion Co., Kiser Lake S. P., 40 ° 11.6 ' N, 83 ° 58.8 ' W, 5. ix. 1976, S. A. Steinly (1 ♀, USNM), OK: Payne Co., Mehan, 20. v. 2016, M. W. Palmer, Silphium laciniatum, em. 1. vi. 2016, # CSE 2666, CNC 654004 (1 ♂, CNC), TN: East Ridge, 9. v. 1952, O. Peck, CNC 391470 (1 ♂, CNC), TX: Welder Wildlife Ref. nr Sinton, 19 - 23. iii. 1965, J. G. Chillcott, CNC 391468 (1 ♂, CNC), Clarendon, 19. ix. 1905, on Grindelia squarrosa, " 9 / 23 / 05, VI ia ", Hunter No. 108 a, W. D. Pierce (1 ♀, USNM), Colemon, 6. xi. 1936, R. H. Painter (1 ♂, USNM), VA: Arlington, 23. viii. 1906, leaf mine on Zinnia, issued 25. viii. 1926 (1 ♀, USNM), issued 24. viii. 1926 (1 ♂ 1 ♀, USNM), Great Falls, 21. vi. 1931, A. L. Melander (3 ♀, USNM), WV: Morgan Co., nr. Great Cacapon, 3. vii. 1983, G. F. and J. F. Hevel (1 ♀, USNM).	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
35F393EFD10E259820F5E88BD069257C.taxon	description	Figs 480 - 483	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
35F393EFD10E259820F5E88BD069257C.taxon	description	Description. Wing length 1.8 - 2.1 mm (♂), 2.3 - 2.6 mm (♀). Length of ultimate section of vein M 4 divided by penultimate section: 2.1 - 2.6. Eye height divided by gena height: 5.0 - 5.9. First flagellomere circular (one female with angulate segment reported in Spencer 1969). Thorax with light pruinosity. Chaetotaxy: Two ori; two ors. Ocellar seta stout and straight, with length ranging from that of tubercle to that of postocellar. Two large, well-developed dorsocentrals posteriorly, third dorsocentral 1 / 2 - 4 / 5 length of second dorsocentral, fourth dorsocentral sutural and barely larger than surrounding setule. Six rows of acrostichal setulae. Usually two posteromedial setae on mid tibia, sometimes one. Colouration: Setae dark brown. Head yellow with back of head, clypeus, palpus, ocellar tubercle and antenna dark brown; male frons brownish in posterolateral corner to just past posterior ors along fronto-orbital plate, female with posterolateral spot extending to midpoint between vertical setae and ocellar tubercle, distant from base of posterior ors; posteroventral margin of gena brown. Thorax dark brown with postpronotum (excluding dark anteromedial spot confluent with margin), notopleuron (excluding dark elongate sublateral spot) and small anterolateral spot behind suture yellow. Calypter white. Halter white. Legs and abdomen dark brown. Genitalia: (Figs 480 - 483) Epandrium and surstylus with dense patch of tubercle-like setae on inner-distal margin. Hypandrium with two setae on inner lobe. Postgonite bare and simple with broadly rounded medial process. Basiphallus sclerotised along apical and left lateral margins. Paraphallus narrow, pointed, exclinate. Hypophallus broad and ill-defined with J-shaped medial sclerite. Mesophallus short, wide, and broadly rounded. Distiphallus with outer cover pale, bulging medially and with slight apical flare, and inner process small, broad, and short-haired. Ejaculatory apodeme very broad, well-sclerotised, stem short, base confluent with sclerotised base of duct and margin of sperm pump.	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
35F393EFD10E259820F5E88BD069257C.taxon	distribution	Distribution. Canada: MB, ON. USA: CA, CO, DE *, FL (leaf mines and females), KS *, LA, MA, MI *, NC, NY, OK. Widespread from southern Canada to FL and CA (Spencer 1990).	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
35F393EFD10E259820F5E88BD069257C.taxon	materials_examined	Additional material examined. Canada. MB: Aweme, N. Criddle, 27. viii. 1917, CNC 391562 (1 ♂, CNC), 28. viii. 1917, CNC 391563 (1 ♀, CNC), USA. CO: Park Co., High Creek Fen, 13. vii. 2015, C. S. Eiseman, Symphotrichum cf. lanceolatum em. 25. vii. 2015, # CSE 1828, CNC 564673 (1 ♂, CNC), Larimer Co., Estes Park, 1. ix. 2015, N. D. Charney, Symphyotrichum, # CSE 2041, CNC 654334 (1 ♂, CNC), DE: Newark, 31. v. 1974 (1 ♂, USNM), KS: Manhattan, D. A. Wilbur, 24. x. 1930 (1 ♂, USNM), LA: Alexandria, 11 mi SW, J. G. Chillcott, 21. iii. 1960, CNC 391564, CNC 391565 (2 ♂, CNC), MA: Berkshire Co., Stockbridge, Agawam Lake, 14. viii. 2017, em. 20. viii. 2017, C. S. Eiseman, ex Symphyotrichum puniceum, # CSE 4152, CNC 939711 (1 ♀, CNC), Franklin Co., Northfield, 276 Old Wendell Rd., 4. viii. 2017, em. 10. viii. 2017, C. S. Eiseman, ex Symphyotrichum lateriflorum, # CSE 4101, CNC 939663 (1 ♂, CNC), MI: Midland, 6 - 7. vi. 1936, C. W. Sabrosky (1 ♂, USNM), NC: Durham Co., Durham, 20. v. 2015, T. S. Feldman, Symphotrichum, em. by 25. v. 2015, # CSE 1581, CNC 564611, CNC 564612 (1 ♂ 1 ♀, CNC), Scotland Co., Laurinburg, St. Andrews University, 15. v. 2015, T. S. Feldman, Symphotrichum, em. v. 2015, # CSE 1563, CNC 564633 (1 ♂, CNC), 17. viii. 2015, T. S. Feldman, Symphotrichum cf. pilosum, em. 18. viii. 2015, # CSE 2122, CNC 564666 (1 ♀, CNC), Scotland Co., Laurinburg, St. Andrews University, 11. v. 2016, T. S. Feldman, Symphyotrichum pilosum, em. 18. v. 2016, # CSE 2469, CNC 653957 (1 ♀, CNC), 15. ix. 2015, T. S. Feldman and C. S. Eiseman, Symphyotrichum cf. pilosum, em. 24 - 28. ix. 2015, # CSE 2098, CNC 653942, CNC 653943 (2 ♂, CNC), x. 2015, T. S. Feldman, Symphyotrichum, em. by xi. 2015, # CSE 2160, CNC 653937 (1 ♀, CNC), OK: Payne Co., Mehan, 23. iii. 2016, M. W. Palmer, Symphyotrichum drummondii, em. by iv. 2016, # CSE 2657, CNC 653987 (1 ♂, CNC), 24. iii. 2016, M. W. Palmer, Symphyotrichum oolentangiensis, em. 30. iii. 2016, # CSE 2659, CNC 653995 (1 ♀, CNC), Payne Co., Mehan, 36 ° 0 ' 51.62 " N, 96 ° 59 ' 48.28 " W, 6. vi. 2016, M. W. Palmer, Symphyotrichum ericoides, em. by 17. vi. 2016, # CSE 2596, CNC 634974, CNC 634975 (2 ♂, CNC).	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
35F393EFD10E259820F5E88BD069257C.taxon	materials_examined	Tentatively identified material. USA. FL: Lake Co., Alexander Springs, 26. iii. 2013, em. 12 - 18. iv. 2013, C. S. Eiseman, ex Ampelaster carolinianus, # CSE 270, CNC 384821 - 384824 (4 ♀, CNC).	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
5DCE0E58F5CA915F91098B0478CC5477.taxon	description	Figs 470, 471	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
5DCE0E58F5CA915F91098B0478CC5477.taxon	description	Description. Wing length 1.6 - 2.0 mm (♂), 2.0 - 2.3 mm (♂). Length of ultimate section of vein M 4 divided by penultimate section: 2.1 - 2.9. Eye height divided by gena height: 1.8 - 3.6. First flagellomere with shallow angle on anterodorsal margin. Notum subshiny to heavily dusted. Chaetotaxy: Two ori; two ors. Ocellar seta sometimes thinner and / or shorter than postocellar. Two well-developed dorsocentral setae, setula in front of anterior dorsocentral small to long and well-developed, sometimes reaching 2 / 3 length anterior dorsocentral. Six rows of acrostichal setulae. One posteromedial seta on mid tibia. Colouration: Setae dark brown. Head yellow with back of head, clypeus, palpus, ocellar tubercle and antenna dark brown; frons brownish in posterolateral corner; lateral margin of frons sometimes either with narrow brown infuscation along fronto-orbital plate that occasionally extends to encompass base of fronto-orbitals, or with brown stripe extending from vertical setae to posterior or anterior ors; dorsal margin to dorsal 1 / 3 of face brown. Thorax dark brown with postpronotum (excluding dark anteromedial spot confluent with margin), notopleuron (excluding dark elongate sublateral spot) and small anterolateral spot behind suture yellow. Calypter white. Halter white. Legs and abdomen dark brown. Genitalia: (Figs 470, 471) Epandrium and surstylus with dense patch of tubercle-like setae on inner-distal margin. Hypandrium and postgonite as in C. humeralis. Basiphallus sclerotised along dorsal / left-lateral surface. Hypophallus with one pair of long, narrow sclerites approximately as long as basiphallus with irregular outline and small inner-basal process. Paraphallus rod-like with base wider and darker; diverging, angled anteroventrally; joined basally by narrow transverse sclerite. Mesophallus as long as basiphallus, slightly bulbous basally, with dark basal plate in front of point of duct insertion; small medial sclerite between mesophallus and distiphallus present. Distiphallus entirely divided into two short tubules, dark, very closely spaced; base stem-like (lateral view) and most of distal region broader, cup-like, angled slightly dorsally; inner fringed structure slightly emerging apically. Ejaculatory apodeme similar to that of C. platyptera.	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
5DCE0E58F5CA915F91098B0478CC5477.taxon	distribution	Distribution. Canada: AB *, NB *, NS, ON, QC, YT. USA: widespread outside of AK and HI. Europe. Russia *. China, Yemen (Papp and Cerny 2017).	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
5DCE0E58F5CA915F91098B0478CC5477.taxon	materials_examined	Material examined. Canada: AB: Killen, 13. iv. 1941, A. Stone (1 ♂, USNM), Kananaskis, 0.5 km SE Barrier Lk. Univ. Fld. Stn., 2. viii. 2001, 51 ° 02 ' N, 115 ° 02 ' W, C. J. Borkent (1 ♂, RBCM), C. E. Lee Sanctuary, Devon Sandhills, on Erigeron glabellus, larva collected 8. viii. 1980, emerged 28. viii. 1980, G. C. D. Griffiths, E 432 (1 ♀, UASM), larva collected 9. vi. 1980, emerged 20. vi. 1980, G. C. D. Griffiths (1 ♀, UASM), Elk Island Nat. Park, on Aster modestus, puparium collected 20. vii. 1975, emerged 1. viii. 1975, G. C. D. Griffiths, E 260 (1 ♂ 2 ♀, UASM), Swan Hills, 54 ° 42 ' N, 115 ° 49 - 50 ' W, 3700 - 3750 ft, on Aster ciliolatus, puparium collected 7. viii. 1977, emerged 26. viii. 1977, G. C. D. Griffiths, SW 79 (1 ♀, UASM), emerged 17. viii. 1977 (1 ♂, UASM), NB: Pt. Lepreau, 10. viii. 1956, A. H. Sturtevant (1 ♀, USNM), NS: Bridgetown, 29. viii. 1912, [illegible], CNC 391417 (1 ♀, CNC), Truro, 5. ix. 1973, CNC 391424 (1 ♂, CNC), ON: Ancaster, 22. vii. 1946, T. N. Freeman, CNC 391420 (1 ♀, CNC), Grand Bend, 10. vii. 1939, G. E. Shewell, CNC 391461, CNC 391423, CNC 391427 (2 ♂ 1 ♀, CNC), 11. vii. 1939, G. E. Shewell, CNC 391419 (1 ♂, CNC), 12. vii. 1939, G. E. Shewell, CNC 391418 (1 ♀, CNC), Harwood Plains, Constance Bay Rd., 19. vii. 1967, G. E. Shewell, CNC 391428, CNC 391429 (2 ♀, CNC), Ottawa, 16. ix. 1952, J. R. Vockeroth, CNC 391426 (1 ♂, CNC), 22. v. 1946, A. R. Brooks, CNC 391425, CNC 391561 (1 ♂ 1 ♀, CNC), 30. viii. 1963, O. Peck, CNC 391465 (1 ♀, CNC), Rockliffe, E of, 18. viii. 1941, O. Peck, CNC 391464 (1 ♀, CNC), Simcoe, 14. vi. 1930, G. E. Shewell, CNC 391463 (1 ♀, CNC), 23. vi. 1930, G. E. Shewell, CNC 391462 (1 ♀, CNC), St. Lawrence Is. Nat. Park, Grenadier I. Centre, 24. vi. 1975, B. E. Cooper, Code 220 M- 15, CNC 391430 (1 ♀, CNC), St. Lawrence Is. Nat. Park, McDonald Is., 4. ix. 1976, W. Reid, Code 4620 - T, CNC 391444 (1 ♀, CNC), ON: Wellington Co., Stone Rd E, Malaise, R. A. Cannings, 21. ix. 1991 (1 ♂, RBCM), 2. vii. 1992 (1 ♀, RBCM), 5. vii. 1992 (1 ♂, RBCM), 7. x. 1992 (1 ♀, RBCM), QC: Ottawa River, 13. vii. 1967, [K. A. Spencer], CNC 391422 (1 ♂, CNC). RUSSIA. Moscow Oblast: Moskau-Wladykino, mine an Solidago virgaurea, 27. vi. 1956, Buhr, 1175, CNC 391421 (2 ♀, CNC). USA. AZ: Cochise Co., Rustler park, 9. vi. 1972, W. W. Wirth (1 ♀, USNM), CA: Meyers Sta., 10. viii. 1921, 7000 ', A. H. Sturtevant (1 ♀, USNM), Riverside, 22. ii. 1955, A. L. Melander (1 ♂, USNM), Lakeside Tahoe, 29. vi. 1929, J. M. Aldrich (1 ♂, USNM), Mentone, 13. v. 1953, A. L. Melander (1 ♂, USNM), CO: Tenn. Pass, JMA, 23. vii. 1917 (1 ♀, USNM), 24. vii. 1917 (1 ♀, USNM), CT: Goose Island, 21. vii. 1913 (1 ♀, USNM), Doolittle Ranch, Mt. Evans, 2987 m, poplar woods, 22. vii. 1961, J. G. Chillcott, CNC 391446 (1 ♀, CNC), Idaho Springs, 3 mi SW, 2438 m, 27. vii. 1961, C. H. Mann, CNC 391449 (1 ♀, CNC), Jackson Co., Muddy Pass, 2682 m, 15. viii. 1961, B. Poole, CNC 391443 (1 ♂, CNC), Loveland Pass, W slope, 3002 m, 28. vii. 1961, J. G. Chillcott, CNC 391448 (1 ♀, CNC), 8. viii. 1961, B. H. Poole, CNC 391447 (1 ♀, CNC), DC: Washington, " AP ", 21. x. 1956, P. H. Arnaud, Jr. (2 ♂, USNM), Washington, 17. viii. 1913, A. L. Melander (1 ♀, USNM), FL: Jackson Co., Florida Caverns St. Park, 26. v. 1973, Malaise trap, W. W. Wirth (1 ♀, USNM), Leon Co., Tall Timber Res. Sta., 29. v. 1973, Malaise trap, W. W. Wirth (1 ♀, USNM), GA: Waynesboro, 26. v. 1943, leaf-miner of goldenrod, emerged 7. vi. 1943, C. H. Hoffman (1 ♂, USNM), IA: Winneshiek Co., Decorah, Community Prairie, 43 ° 18 ' 5.04 " N, 91 ° 48 ' 6.60 " W, 18. vi. 2017, J. van der Linden, Solidago, em. vii. 2017, # CSE 4949, CNC 1288659 (1 ♂, CNC), ID: Chateolet, viii. 1915, A. L. Melander (1 ♀, USNM), IN: Lafayette, 30. iv. 1915, swept from grass, J. M. Aldrich (1 ♀, USNM), Lafayette, J. M. Aldrich, 15. iv. 1915 (1 ♀, USNM), " x- 15 " (1 ♂, USNM), " x- 13 " (1 ♂, USNM), MA: Vineyard Haven, 17. viii. 1954, A. H. Sturtevant (1 ♂, USNM), Woods Hole, viii. 1922, A. H. Sturtevant (1 ♂, USNM), Forest Hills, 22. ix. 1913, A. L. Melander (1 ♀, USNM), Nantucket Co., Nantucket, Dead Horse Valley, 6. viii. 2012, C. S. Eiseman, ex Solidago leaf mine, em. 15. viii. 2012, # CSE 32, CNC 391435 - 391439 (4 ♂ 1 ♀, CNC), Nantucket Co., Nantucket, Ice Pond Lot, 26. vii. 2014, C. S. Eiseman, ex. Solidago latissimifolia, em. 5. viii. 2014, # CSE 1269, CNC 384825, CNC 384826 (2 ♀, CNC), 5. viii. 2012, em. 8 - 15. viii. 2012, # CSE 22, CNC 391431 - 391434 (3 ♂ 1 ♀, CNC), Nantucket Co., Nantucket, Squam Swamp, 12. vi. 2013, C. S. Eiseman, ex. Solidago latissimifolia, em. 23. vi. 2013, # CSE 587, CNC 384812 (1 ♀, CNC), Nantucket Co., Tuckernuck Island, 14. vii. 2012, C. S. Eiseman, J. A. Blyth, leaf mine in Solidago, em. 22. vii. 2012, # CSE 58, CNC 391440 (1 ♂, CNC), MD: Montgomery Co., Colesville, 4. ix. 1977, Malaise trap, W. W. Worth (1 ♂, USNM), P. G. Co., Camp Springs, 25. viii. 1979, G. F. Hevel (1 ♂, USNM), MI: E Lansing, 20. v. 1939, C. Sabrosky (1 ♀, USNM), Leelanau Co., 22. vi. 1937, C. Sabrosky (1 ♂, USNM), Mio, 29. v. 1937, H. Millron (2 ♀, USNM), NC: Hyde Co., 3 mi E Swan Quarter, 19. iv. 1981, G. F. and J. F. Hevel (2 ♂, USNM), Base of Wayah Bald, 10. viii. 1957, W. R. Richards, CNC 391442 (1 ♂, CNC), Bubbling Spring Creek, nr. Tennessee Bald, 1554 m, 17. vii. 1957, J. G. Chillcott, CNC 391445 (1 ♀, CNC), SC: Aiken, 13. vi. 1957, J. R. Vockeroth, CNC 391441 (1 ♂, CNC), Coosawhatche, 1. i. 1972, J. R. Vockeroth, CNC 391450 (1 ♀, CNC), NC: Scotland Co., Laurinburg, St. Andrews University, 31. iii. 2016, T. S. Feldman, Solidago canadensis, em. 12 - 15. iv. 2016, # CSE 2374, CNC 653966 - 653969 (4 ♂, CNC), NH: Mt. Wash., Alpine Garden, 30. viii. 1957, A. L. Melander (1 ♂, USNM), NJ: Morristown, 1. v. 1925, A. H. Sturtevant (1 ♂, USNM), NY: L. I., Cold Spring Harbor, July, A. L. Melander (2 ♂ 2 ♀, USNM), Bear Mt., 31. v. 1941, A. L. Melander (1 ♂, USNM), OH: Indian Cr. C. P., nr. Oxford, 25. v. 1976, S. A. Steinly (1 ♂, USNM), Woodside, 8. vi. 1940, A. L. Melander (1 ♂, USNM), OR: Mt. Hood, 29. vii. 1921, A. L. Melander (1 ♀, USNM), PA: York Co., 2 mi W of Airville, 29. viii. 1981, G. F. and J. F. Hevel (1 ♀, USNM), SC: Florence, " 6 - 1 - 43 ", emerged 5. vi. 1943, leaf-miner of goldenrod (1 ♀, USNM), UT: Timpanogos Mt., 25. vi. 1940, A. L. Melander (1 ♂, USNM), VA: Alexandria, v. 1915, J. M. Aldrich (1 ♀, USNM) reene (1 ♀, USNM), Great Falls, 8. vi. 1938, C. T. Greene (1 ♀, USNM), WY: Yellowstone Park, W Craigs Pass, 7900 ', 8. viii. 1918 (1 ♂, USNM), Yellowstone Park, 9. viii. 1918, A. L. Melander (1 ♂, USNM), Yellowstone Park, Biscuit Basin, 2. viii. 1934, A. L. Melander (1 ♂, USNM).	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
2256E5C5E6E6A5FA085D1AF16BDF2D6B.taxon	description	Figs 484 - 489	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
2256E5C5E6E6A5FA085D1AF16BDF2D6B.taxon	description	Description. Wing length 1.8 - 2.1 mm (♂), 2.0 - 2.4 mm (♀). Length of ultimate section of vein M 4 divided by penultimate section: 1.8 - 3.0. Eye height divided by gena height: 4.5 - 5.4. First flagellomere circular. Notum subshiny. Chaetotaxy: Two ori; two ors. Postocellar and ocellar setae well-developed. Two well-developed dorsocentral setae, setula in front of anterior dorsocentral thin and nearly 1 / 2 the length of that seta, appearing as third dorsocentral. Six rows of acrostichal setulae. Two posteromedial setae on mid tibia. Colouration: Setae dark brown. Head yellow with back of head, clypeus, palpus, ocellar tubercle and antenna dark brown; frons brownish in posterolateral corner with faint stripe extending from posterior margin of frons to base of posterior ors Thorax dark brown with postpronotum (excluding dark anteromedial spot confluent with margin), notopleuron (excluding dark elongate sublateral spot), small anterolateral spot behind suture yellow, and scutum faintly to distinctly yellowish on suture near sides of scutellum. Halter white. Calypter margin brownish and hairs brown. Legs and abdomen dark brown with fore knee yellow. Genitalia: (Figs 484 - 489) Epandrium and surstylus with dense patch of tubercle-like setae on inner-distal margin. Hypandrium with one seta on broad inner lobe. Postgonite large, broad, rounded apically. Basiphallus sclerotised along apical and left lateral margins. Paraphallus absent. Hypophallus broad, wider apically and with sclerotised lateral margins. Mesophallus relatively broad with base bulbous and with strong ventral curve subapically. Distiphallus medially divided with halves closely adjoined, very dark; outer cover broadly rounded, slightly angled dorsally, enclosing dark inner process that slightly protrudes. Ejaculatory apodeme stout, typical of genus.	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
2256E5C5E6E6A5FA085D1AF16BDF2D6B.taxon	distribution	Distribution. USA: AZ, DC, FL, IA, IL, IN, NC, NJ, NM, OH; verification required for GA, MD, MS, NY, PA; leaf mines requiring verification from KS, MA, MD (Eiseman and Lonsdale 2018). Brazil.	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
2256E5C5E6E6A5FA085D1AF16BDF2D6B.taxon	materials_examined	Additional material examined. USA. DC: Washington, 23. viii. 1928, reared from Verbena, W. H. White, Chittenden No. 1084 (2 ♀ [one with puparium], USNM), Washington, 23. viii. 1915, leaf miner on Verbena, W. H. White (1 ♀, USNM), IL: Algonquin, Coquillett (1 ♂, USNM), Chicago, A. L. Melander (1 ♂, USNM), IN: Bluffton, 15. viii (1?, USNM), Bluffton, 1905, Verbena leaf miner (1 ♂ 1 ♀ 1 puparium, USNM), Layfayette, " x- 13 ", J. M. Aldrich (1 ♂, USNM), OH: Dayton, 13. vi. 1906, mining in Verbena leaf, N. B. Jervett (2 ♂, USNM), Dayton, 13. vi. 1906, mining in Verbena leaf, issued 28. vi. 1906 (1 ♀, USNM), Dayton, 18. vi. 1906, mining in Verbena leaf, issued 28. vi. 1906 (1 ♀, USNM), TX: Llano Co., Enchanted Rock, 15. vi. 1953 (1 ♂, USNM). State unknown [likely IN]: Verbena leaf miner, " 7 / 30, 82, Agromyza jucunda v. d. Wulp " (1 ♂ 4 ♀ [with puparia, all on same pin], USNM), " 5465 (?), Oscinis malvae Burg. " (3 ♂ 2 ♀ [with puparia, all on same pin], USNM), " 5465 (?), July 20 / 74 ", collection C. V. Riley (1 ♂, USNM), " 214 L (?), Oscinis malvae Bur. On Verbena " (2 ♂ 1 ♀ 1 destroyed, USNM). No locality data: Verbena leaf miner, 30. vii. 1882 (1 ♂ 4 ♀ [two with puparia, same pin], USNM), [illegible] (3 ♂ 2 ♀ [four with puparia, same pin), USNM], [illegible], 20. vii. 1914, C. V. Riley (1 ♂, USNM), Dept. Noja [?] 35, 31. x. 1881 (1 ♀, USNM), No. 1035, leaf miner on Verbena, 1. x. 1881 (1 ♂ [with puparium], USNM), 214 L [?], Oscinis malvae on Verbena (2 ♂ 1 ♀ 1?, USNM), Dept. No. 1035, Oscinis malvae, on 26. x. 1881 (1 ♂ [with puparium], USNM).	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
3A4138E92B7FE8858AF2509FA327AEB8.taxon	description	Figs 99, 490 - 494, 495 - 502	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
3A4138E92B7FE8858AF2509FA327AEB8.taxon	description	Description (Fig. 99). Wing length 2.0 - 2.7 mm (♂), 2.1 - 2.8 mm (♀). Length of ultimate section of vein M 4 divided by penultimate section: 0.7 - 1.2. Eye height divided by gena height: 10.6 - 18.6. First flagellomere small, rounded, higher than long; with longer hairs on anterior margin above middle that may appear as a more or less discrete tuft. Lunule as high, or slightly higher than wide, subtriangular; minutely tomentose, velvety. Fronto-orbital plate and ocellar triangle not distinct. Posterior ocelli slightly displaced laterally. Chaetotaxy: Two ori (anterior seta slightly shorter, straighter, and more angled inwards); two ors. Orbital setulae in one reclinate row. Ocellar and postocellar setae sometimes longer than fronto-orbitals. Four dorsocentrals slightly decreasing in length anteriorly. Acrostichal seta small to well-developed. Acrostichal setulae in five or six irregular rows. Colouration: Setae brown to dark brown. Base colour of body pale brown, sometimes appearing yellowish, with surface subshiny; ocellar tubercle and ventral margin of gena dark brown; clypeus either dorsally or entirely dark brown; palpus, face, parafacial, back of head (sometimes excluding yellowish dorsomedial region) and abdomen darker brown; if posterolateral corner of frons to inner vertical also darker brown, then darker region sometimes extending to base of posterior fronto-orbital; postpronotum and notopleuron slightly more yellowish with posterior corner of both sometimes light yellow; lateral margin of postsutural scutum narrowly yellow; wing veins light brown, becoming light yellowish to white at base; calypter yellowish white; halter white; femora yellow apically for length equal to femur width; fore tibia yellowish; tarsi yellowish; dorsomedial region of epandrium, including process above anus, yellow to yellowish brown. Genitalia: (Figs 490 - 502) Epandrium with small rounded process above anus. Cercus small, setulose. Surstylus small, incurved, fused to epandrium; with shallow oblique ridge of pronounced tubercle-like setae on inner surface. Subepandrial sclerite divided medially with one pair of flat plate-like dorsal sclerites with one ventral seta, and one pair of darker rod-like ventral processes with one outer subapical spine. Hypandrium subtriangular with apex broadly rounded; inner lobe with narrow, weak attachment to outer frame, with several empty sockets, weak inner plate, and long basal arm. Postgonite small, narrow, dark. Phallophorus subcylindrial, dorsally fused to basiphallus. Basiphallus composed of a single bifid sclerite; left branch flat, pale, narrow to thick plate with apex shallowly divided; right branch produced into long dark arm. Hypophallus with left sclerite L-shaped with basal section darker, thicker, and mirroring extended arm of basiphallus; right sclerite pale, small, vestigial. Paraphallus (one pair) rounded, membranous, lobate, flanking base of mesophallus, venter sclerotised. Mesophallus ca. as long as distance from base of phallophorus to base of mesophallus; stalk slightly narrower than high; apical bulb 2 / 5 length of segment, broadly ovate in ventral view. Distiphallus slightly longer than mesophallus, entirely divided into one pair of sinuate arms with short, shallowly curved basal section and more sharply curved apical section with relatively straight intervening space; apex of distiphallus sometimes unwidened or slightly flared at opening, but sometimes apex more broadly subconical (Fig. 501) or barrel-shaped (Nowakowski 1973: fig. 145 L and Fig. 502 for specimens from NC: Indian Gap discussed by Spencer and Steyskal 1986 b). Ejaculatory apodeme with short, apically widened stem grading into large, pale blade; base dark, asymmetrical; sperm pump with ventral sclerotised plate widening into one pair of large lateral rounded extensions; sperm pump clear with one pair of floating sclerotised bars at either end in Indian Gap male. Variation: Many specimens from North Carolina and Tennessee (including Indian Gap male discussed and illustrated in Spencer and Steyskal 1986 b) differ as follows. Acrostichal setulae in straight or irregular rows. Pigment darker overall, including on all antennal segments, which more sharply contrast paler regions; wing veins darker brown; tibiae and tarsi either darker or as described above for " typical " specimens. A male from Massachusetts with acrostichal setulae in straight rows. Head dark brown to brown with fronto-orbital plate slightly paler; mid and hind femora entirely brown. Subepandrial sclerite with large hook on ventral process; apex of distiphallus swollen, barrel-like. Males from Washington State also similarly dark externally, but otherwise as above for " typical " specimens, with acrostichal setulae in mostly straight rows. Variation: tentatively included: Specimens from northeastern states sometimes differ as follows. Acrostichal setulae in straight rows. Setae brown; pigment on head and thorax sometimes darker in females; first flagellomere slightly darker; clypeus entirely dark brown; notopleuron and postpronotum more evenly yellowish; legs entirely dark brown with apex of fore femur and sometimes apical margin of mid femur yellow. Spine on process of subepandrial sclerite highly reduced with surrounding area minutely textured, except in CNC male from Maryland, where spine is long, but more basally situated and angled towards base; paraphallus more produced; left lateral plate of basiphallus wider apically; distal section of distiphallus broadly rounded and C-shaped.	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
3A4138E92B7FE8858AF2509FA327AEB8.taxon	distribution	Distribution. Canada: AB, ON. USA: widespread. Widespread in Palaearctic (Cerny et al. 2020).	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
3A4138E92B7FE8858AF2509FA327AEB8.taxon	materials_examined	Additional material examined. Canada. ON: Ottawa, Stony Swamp, Beaver Trail, 45 ° 18 ' 0 " N, 75 ° 49 ' 16 " W, 13. vi. 2015, O. Lonsdale, CNC 441055, CNC 441087 (1 ♂ 1 ♀, CNC), 7. vi. 2015, CNC 440794, CNC 440870 (2 ♀, CNC), Rattlesnake Point Conservation Area, 11. vi. 2011, Lonsdale and Richard, sweeping, CNC 481026, CNC 481027 (2 ♀, CNC), Wellington Co., Smith Property Trail nr. Arkell, 43 ° 32 ' 55 " N, 80 ° 11 ' 0 " W, 23. vi. 2015, O. Lonsdale, CNC 441179, CNC 441188 (2 ♀, CNC), Kent Co., Rondeau Prov. Pk., South Point, east parking lot, 42 ° 15 ' 42 " N, 81 ° 50 ' 49 " W, oak savannah, Malaise, 3 - 15. v. 2003, S. A. Marshall, debu 01121095 (1 ♀, DEBU). USA. CT: Redding, 31. v. 1930, A. L. Melander (1 ♀, USNM), IN: Lafayette, vii. 1931, J. M. Aldrich (1 ♀, USNM), MA: Franklin Co., Northfield, 42.648774, - 72.429433, 26. x. 2015, em. 30. iii- 3. v. 2016, C. S. Eiseman, ex Carex, pupation external, # CSE 2296, CNC 654203 - 654211 (1 ♂ 8 ♀, CNC), em. 17. iv. 2016, pupation internal, # CSE 2400, CNC 654195 (1 ♀, CNC), 276 Old Wendell Rd., 1. xi. 2015, em. 3. v. 2016, C. S. Eiseman, ex Carex, pupation external, # CSE 2443, CNC 654170 (1 ♀, CNC), 18. vii. 2016, puparium 19. vii. 2016, em. 4. viii. 2016, C. S. Eiseman, ex Dichanthelium clandestinum, # CSE 2842, CNC 654169 (1 ♂, CNC), 23. vii. 2016, em. 11. viii. 2016, C. S. Eiseman, ex Scirpus hattorianus, # CSE 2868, CNC 659970 (1 ♀, CNC), Hampshire Co., Northampton, 42.366360, - 72.671754, 15. vi. 2017, em. 6. vii. 2017, C. S. Eiseman, ex Carex stipata, # CSE 3899, CNC 939710 (1 ♀, CNC), Pelham, Quarry St., 4. vii. 2013, em. 18. vii. 2013, C. S. Eiseman, ex Dichanthelium clandestinum, # CSE 713, CNC 392665 (1 ♂, CNC), Pelham, Butter Hill Wildlife Sanctuary, 19. iv. 2015, em. 8. v. 2015, C. S. Eiseman, ex Luzula, # CSE 1543, CNC 564618 (1 ♀, CNC), Nantucket Co., Nantucket, 41.289665, - 70.010519, 30. vii. 2017, em. 18. viii. 2017, C. S. Eiseman, ex Carex crinita, # CSE 4140, CNC 939651 (1 ♂, CNC), Worcester Co., Charlton, Flint Rd., 21. ix. 2016, em. 25. ix. 2016, C. S. Eiseman, ex Dichanthelium clandestinum, # CSE 3010, CNC 638884 (1 ♀, CNC), MD: Calvert Co., 8 km S Prince Frederick, 2. v. 1987, J. M. Cumming, CNC 481028, CNC 481029 (1 ♂ 1 ♀, CNC), Bethseda, 17. v. 1981, G. C. Steyskal (2 ♂, USNM), Montgomery Co., Colesville, 19. ix. 1977, Malaise trap, W. W. Wirth (1 ♂, USNM), 26. vi. 1977 (1 ♀, USNM), Cabin John, 24. v. 1931, J. M. Aldrich (1 ♀, USNM), NC: Gt Smokies NP, Clingman Dome, 21. vi. 1941, A. L. Melander (1 ♀, USNM), Smokies, Andrews Bald, 9. vii. 1941, A. L. Melander (1 ♂ 2 ♀, USNM), Durham Co., Durham, Leigh Farm Park, 9. v. 2017, em. 13. vi. 2017, T. S. Feldman, ex Dichanthelium, # CSE 3826, CNC 939783 (1 ♂, CNC), 14. vi. 2017, em. 3. vii. 2017, T. S. Feldman, ex Dichanthelium, # CSE 3891, CNC 939773 (1 ♂, CNC), Pelham Road, 13. v. 2017, em. 3 - 6. vi. 2017, T. S. Feldman, ex Dichanthelium acuminatum ssp. acuminatum, # CSE 3784, CNC 939827 - 939829 (1 ♂ 2 ♀, CNC), Sandy Creek Park, 16. v. 2017, em. 8. vi. 2017, T. S. Feldman, ex Dichanthelium, # CSE 3806, CNC 939841 (1 ♀, CNC), Scotland Co., Laurinburg, St. Andrews University, 10. i. 2017, em. 15. ii. 2017, T. S. Feldman, ex Carex, # CSE 3150, CNC 939737 (1 ♀, CNC), 18. i. 2017, em. 6. iii. 2017, T. S. Feldman, ex Dichanthelium, # CSE 3158, CNC 939751 (1 ♂, CNC), NY: Bear Mt., 31. v. 1941, A. L. Melander (2 ♂ 3 ♀, USNM), PA: Ono, 7. vi. 1940, Melander (1 ♂, USNM), VA: Hawksbill, Shenandoah, 1097 - 1234 m, 7. vi. 1962, J. R. Vockeroth, CNC 480663 (1 ♀, CNC), Shenandoah, Big Meadows, 3. vii. 1939, Alexander (1 ♂, USNM), 15. vi. 1941, A. L. Melander (2 ♂, USNM), Blacksburg, 2100 ', 29. v. 1962, J. R. Vockeroth (1 ♂, USNM), Chain Bridge, 29. vii. 1923, J. M. Malloch (1 ♂, USNM), Giles Co., Jefferson Nat. Forest, Cascades Trail, 16. v. 1977, D. C. Caloren (1 ♂, DEBU), Giles Co., Mountain Lake Biol. Stn., 37 ° 22 ' 31 " N, 80 ° 31 ' 18 " W, 24. v. 2001, O. Lonsdale, debu 1007754 (1 ♂, DEBU), Alexandria Co., Maywood, 21. v. 1922, W. L. McAtee (1 ♀, USNM), Fairfax Co., Dead Run, 28. vii. 1915, R. C. Shannon (1 ♂, USNM), VT: Essex Co., 5 mi W Bloomfield, 28. vi. 1972, H. J. Teskey, CNC 481030 (1 ♀, CNC), WA: Jefferson Co., 10. x. 2012, em. 4. v. 2013, C. S. Eiseman, ex broad-leaved wetland Carex, # CSE 412, CNC 358502 (1 ♂, CNC), 11. x. 2012, em. 20. v. 2013, C. S. Eiseman, ex narrow-leaved upland Carex, # CSE 528, CNC 358501 (1 ♂, CNC), WV: Parkersburg, 21. vi. 1970, G. Steyskal (1 ♂, USNM), Parkersburg, 21. vi. 1970, G. Steyskal (1 ♂, USNM), State unknown: Gt. Smokie NP, Newf'nd Ridge, 11. vii. 1941, A. L. Melander (1 ♂ 1 ♀, USNM).	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
3A4138E92B7FE8858AF2509FA327AEB8.taxon	materials_examined	Additional material examined [" variation "]. USA. MA: Hampshire Co., Pelham, Quarry St., 4. vii. 2013, C. S. Eiseman, ex Dichanthelium clandestinum, em. 18. vii. 2013, # CSE 713, CNC 392665 (1 ♂, CNC), Worcester Co., Charlton, Flint Rd., 21. ix. 2016, C. S. Eiseman, Dichanthelium clandestinum, em. 25. ix. 2016, # CSE 3010, CNC 638884 (1 ♀, CNC), Franklin Co., Northfield, 276 Old Wendell Rd., 1. xi. 2015, C. S. Eiseman, Carex, em. 3. v. 2016, # CSE 2443, CNC 654170 (1 ♀, CNC), 18. vii. 2016, C. S. Eiseman, Dichanthelium clandestinum, em. 4. viii. 2016, # CSE 2842, CNC 654169 (1 ♂, CNC), by beaver pond, 26. x. 2015, C. S. Eiseman, Carex, em. 17. iv. 2016, # CSE 2400, CNC 654195 (1 ♀, CNC), 26. x. 2016, C. S. Eiseman, Carex, em. 30. iii- 3. v. 2016, # CSE 2296, CNC 654203 - 654211 (1 ♂ 8 ♀, CNC), NC: Gr. Smoky Mt. Nat. Pk., Clingman's Dome, 1920 - 2024 m, 28. v. 1957, J. R. Vockeroth, CNC 480667 (1 ♂, CNC), Highlands, Little Bear Pen Mt., 5. viii. 1957, W. R. Richards, CNC 480665 (1 ♂, CNC), Highlands, Whitesides Cove, 853 m, 11. viii. 1957, J. G. Chillcott, CNC 480662 (1 ♀, CNC), Highlands, Wilson's Gap, 944 m, 25. v. 1957, J. R. Vockeroth, CNC 480664 (1 ♂, CNC), Highlands, 1158 m, 12. vii. 1957, J. G. Chillcott, CNC 480668 (1 ♂, CNC), 12. viii. 1957, W. R. Richards, CNC 480654 (1 ♂, CNC), 1158 m, 29. viii. 1957, J. G. Chillcott, CNC 480659 (1 ♀, CNC), 8. vi. 1957, J. R. Vockeroth, CNC 480657 (1 ♀, CNC), Macon Co., Wayah Gap, 1249 m, 28. vii. 1957, J. G. Chillcott, CNC 480658 (1 ♀, CNC), 29. vii. 1957, CNC 480660, CNC 480661 (2 ♀, CNC), Wilkes Co., Doughton Gap, 853 m, 6. vi. 1962, J. G. Chillcott, CNC 480655 (1 ♂, CNC), TN: East Ridge, 6. v. 1952, O. Peck, CNC 480656 (1 ♂, CNC), 9. v. 1952, G. S. Walley, CNC 480669 (1 ♂, CNC), Gr. Smoky Mt. Nat. Pk., Greenbrier Cove, 609 m, 18. v. 1957, J. R. Vockeroth, CNC 480666 (1 ♂, CNC), Indian Gap, G. S. M. N. P., 1584 m, 3. vi. 1957, C. D. Hines, CNC 480653 (1 ♂, CNC), WA: Jefferson Co., 10. x. 2012, C. S. Eiseman, ex Carex, em. 20. v. 2013, # CSE 412, CNC 358502 (1 ♂, CNC), 11. x. 2012, ex Carex, em. 20. v. 2013, # CSE 528, CNC 358501 (1 ♂, CNC).	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
A142A0E96EADFED5005A83F4FD3B8330.taxon	description	Figs 503 - 507	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
A142A0E96EADFED5005A83F4FD3B8330.taxon	description	Description (NC male). As described for Cerodontha (Butomomyza) angulata, except as follows. Wing length 2.6 mm (♂). Female unknown. Length of ultimate section of vein M 4 divided by penultimate section: 1.1. Eye height divided by gena height: 11.9. Acrostichal seta well-developed; acrostichal setulae in six straight rows. Frons between fronto-orbital plates rougher, pitted. Setae dark brown; frons darker brown, but dark brown pigment only present on tubercle; remainder of head brown to dark brown with clypeus, palpus and back of head clearly darker; brown pigment on remainder of body darker, contrasting more with paler regions; colour of postpronotum and notopleuron blotchier, with anterior and posterior regions of notopleuron yellower; wing veins brown to light brown, only yellow basal to basal cells; apices of all femora distinctly yellow, base and apex of fore tibia yellowish, and tarsi brownish yellow with apical one or two segments darker. Sclerotized portion of paraphallus flatter, band-like; distiphallus relatively straight, especially on distal 2 / 3, and with apex not swollen (Fig. 503); paired tubules of distiphallus very closely held along length. Variation: The Illinois holotype, based on the original description, differs as follows: additional ors present, possibly up to eight rows of acrostichal setulae, eye ~ 8 x higher than gena, palpus yellowish apically, apices of mid and hind femora not yellow; additionally, the length of vein dm-m is the same as the distance from vein r-m; distiphallus slightly more curved with apex slightly swollen (Figs 504 - 507).	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
A142A0E96EADFED5005A83F4FD3B8330.taxon	distribution	Distribution. USA: IL. Possibly MD, NC.	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
A142A0E96EADFED5005A83F4FD3B8330.taxon	materials_examined	Additional material examined. USA. NC: Haywood Co., Pisgah Nat. Forest, Chestnut Bald, 5900 ', 2. viii. 1957, J. G. Chillcott (1 ♂, CNC).	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
6A6A4DE2ADC9BBA62D79FDD6F965F941.taxon	description	Figs 106, 508 - 512	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
6A6A4DE2ADC9BBA62D79FDD6F965F941.taxon	description	Description (Fig. 106). Wing length 2.0 - 2.4 mm (♂), 2.0 - 2.9 mm (♀). Length of ultimate section of vein M 4 divided by penultimate section: 0.8 - 1.1. Eye height divided by gena height: 2.6 - 3.7. Arista relatively stout and thickened on basal 1 / 2, distinctly thicker than width of distal 1 / 2. First flagellomere slightly longer than high, longest subdorsally, where segment ends in pronounced spine; sometimes very stout apically, appearing almost subrectangular, but often more gradually tapering to apex; distal margin to distal 1 / 2 of ventral margin with relatively long, white hairs. Fronto-orbital plate slightly visible laterally, with anterior region more strongly projecting, continuing as narrow parafacial; cheek evident on anterior 1 / 2 of gena. Chaetotaxy: One ori, slightly inset, usually also with additional weak ori anteriorly; two subequal ors. Orbital setulae sparse, in single row; partially reclinate, but becoming erect to proclinate anteriorly. Postocellar subequal to fronto-orbitals. Ocellar longer than fronto-orbitals. Four dorsocentral setae, slightly decreasing in length anteriorly. Anterior notopleural seta, lateral scutellar seta, acrostichal seta and acrostichal setulae absent. Colouration: Setae black. Base colour of head light yellow to slightly whitish, contrasting rest of body; yellower between fronto-orbital plates on frons, on face, palpus, scape, pedicel and gena; first flagellomere dark brown; fronto-orbital plate with narrow dark brown marking posterolaterally to base of anterior or posterior ors; posterolateral corner of frons dark brown to dorsal margin of eye and outer vertical seta; clypeus yellow to brown with lateral arms usually browner; back of head dark brown. Notum mostly dark brown with sparse grey pruinosity, but often with yellowish to distinctly yellow pattern, usually including a vestige of the following: most or all of posterior margin, one pair of postsutural intra-alar stripes and one stripe between dorsocentral rows to approximate level of the second dorsocentral seta that continue to transverse suture along dorsocentral rows as one pair of very narrow lines; at least part of notopleuron and scutellum (usually wide central stripe) yellow, and postpronotum yellow with dark anteromedial spot that may predominate; metanotum usually yellow lateral scutellum. Pleuron dark brown with at least part of anepisternum yellow. Legs yellow with tibiae and tarsi light brown to brown. Halter white. Calypter margin greyish, hairs brown. Abdomen dark brown. Variation: Darker forms differ as follows: dark posterolateral spot on frons sometimes reaching base of inner vertical seta; scutum, scutellum and anepisternum entirely dark, sometimes excluding yellowish medial marking on scutellum; femora sometimes with dark striping or mottling, at least basally. Paler forms with distinct yellow markings on notum; scutellum widely yellow medially with lateral margins dark; anepisternum usually entirely yellow with venter sometimes darker, katepisternum entirely yellow or with variable dark brown ventral spot. Genitalia: (Figs 508 - 512) Epandrium rounded, without process protruding above anus. Cercus small, setose. Surstylus setose, produced inwards anterodorsally. Subepandrial sclerite with one pair of strong setae and one pair of stout ventrolateral processes; rounded apically and with shallow outer subapical point. Hypandrium thin, halves approximate, with one pair of sockets on inner lobe. Postgonite small, bare. Phallophorus not much longer than wide, narrower to base, left distolateral margin more produced. Basiphallus with one broad left lateral sclerite slightly extending onto dorsal and left ventolateral surfaces. Hypophallus asymmetrical, with left sclerite darker, well-defined and with regular margin; right sclerite much larger but irregular, ill-defined, with minute sclerotised patches and hairs distally, and with base narrow, darker and discrete; clear tubule emerging from between sclerites. Mesophallus with dark, swollen irregular base enclosing apex of duct; otherwise cylindrical with basal 1 / 2 swollen, narrowest point at 2 / 3 length, and distoventral margin produced basally as thick lip. Distiphallus entirely divided into one pair of long tubules equal to length of phallophorus + basiphallus; somewhat S-shaped with basal curve short and apex directed anterodorsally; distal 1 / 3 thicker, darker, barrel-shaped, with narrow seam ventromedially. Ejaculatory apodeme with short, stout base and stem, blade relatively small with clear margin; sperm pump with one pair of sclerotisations continuing onto base of duct.	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
6A6A4DE2ADC9BBA62D79FDD6F965F941.taxon	distribution	Distribution. Canada: AB, BC, MB, NB, NS, ON, QC, SK. USA: " probably present in all states " (Spencer and Steyskal 1986 b). Brazil. Colombia. Ecuador. Guatemala. Jamaica. Mexico. Peru. Puerto Rico. Eastern Russia. Mongolia.	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
6A6A4DE2ADC9BBA62D79FDD6F965F941.taxon	materials_examined	Additional material examined. Canada. AB: Waterton Lakes National Park, 49 ° 5 ' N, 113 ° 53 ' W, 1347 m, meadow, 5. vi. 2005, Goulet and Boudreault, CNC 480672, CNC 480676 (1 ♂ 1 ♀, CNC), BC: Agassiz, Res. Sta., rhodo patch, 49 ° 15 ' N, 121 ° 46 ' W, 23. vii. 2004, S. A. Marshall, Malaise trap, CNC 287186, CNC 287220, CNC 287251, CNC 287283 (2 ♂ 2 ♀, CNC), Mt. Kobau, 49 ° 5 ' N, 119 ° 38 ' W, fallow field, 23. v. 2005, Goulet and Boudreault, sweeping, CNC 480673 - 480685 (11 ♂ 1 ♀, CNC), Osoyoos, 49 ° 2 ' N, 119 ° 27 ' W, alfalfa, 26. v. 2005, Goulet and Boudreault, site 8, CNC 480687 (1 ♀, CNC), Apex Mt. Ski Area, 2. viii. 2004, 49 ° 28 ' 56 " N, 119 ° 56 ' 04 " W, J. E. Swann (1 ♂, CNC), MB: Aweme, Criddle homestead, 49 ° 43 ' N, 99 ° 35 ' W, mixed grass prairie, 24. vii. 2007, H. Goulet, sweeping, CNC 480686 (1 ♂, CNC), Assiniboine River Conservation Area, 49 ° 40 ' 42.48 " N, 99 ° 36 ' 46.56 " W, 1. vi. 2007, Goulet, Boudreault and Fernandez, CNC 352493 (1 ♀, CNC), NB: Madawaska Co., Saint-Jacques, Baisley Rd. at QC border, 27. vii. 2013, O. Lonsdale, CNC 271171, CNC 271188 (2 ♂, CNC), ON: Moose Factory, 51 ° 16 ' N, 80 ° 36 ' W, 11. vi. 1949, D. P. Whillans, CNC _ Diptera 109362 (1 ex, CNC), Ottawa, 3. vi. 2007, J. R. Vockeroth, CNCDiptera 164460 (1 ♂, CNC), Algonquin Provincial Park, Whitefish Lake Group Campground, 45 ° 33 ' 47.01 " N, 78 ° 26 ' 13 " W, 414 m, 28. vi- 2. vii. 2008, J. andA. Skevington, Malaise trap, CNC 339235, CNC 339249 (1 ♂ 1 ♀, CNC), Almonte, Burnt Lands Provincial Park, 45 ° 15 ' 43 " N, 76 ° 9 ' 8 " W, 5. vii. 2015, O. Lonsdale, sweeping, CNC 454712 (1 ♂, CNC), Sudbury Dist., Killarney Provincial Park, Cranberry Bog Trail, 46 ° 1 ' 8 " N, 81 ° 23 ' 42 " W, 1. ix. 2014, O. Lonsdale, CNC 380415 (1 ♀, CNC), Sudbury Dist., Killarney Provincial Park, Lake of the Woods Trail, 46 ° 6 ' 36 " N, 81 ° 11 ' 48 " W, 2. ix. 2014, O. Lonsdale, CNC 380790, CNC 380793 (2 ♂, CNC), SK: Maple Creek, mowed grass, 15. vii. 2005, J. R. Vockeroth, CNCDiptera 166564 (1 ♂, CNC), 7 km E Leask, 10. viii. 2005, J. R. Vockeroth, CNCDiptera 193131 (1 ♀, CNC), Cypress Hills Provincial Park, E Block, 9. vii. 2005, J. R. Vockeroth, CNCDiptera 166367 (1 ♂, CNC). USA. CO: Chaffee Co., Poncha Springs, South Arkansas River, 8. vii. 2015, em. by 21. vii. 2015, C. S. Eiseman, ex x Triticosecale, # CSE 1777, CNC 634812 (1 ♀, CNC), Boulder Co., Corona Pass, 3230 m, marshy meadow at timberline, 6. vii. 1961, J. G. Chillcott, CNC 480693 (1 ♂, CNC), Doolittle Ranch, Mt. Evans, 2987 m, 12. vii. 1961, C. H. Mann, CNC 480720 (1 ♂, CNC), 27. vii. 1961, J. G. Chillcott, CNC 480717 - 480719, CNC 480722 (4 ♂, CNC), 3. viii. 1961, CNC 480725 (1 ♀, CNC), 8. vii. 1961, C. H. Mann, CNC 480721, CNC 480723, CNC 480724 (1 ♂ 2 ♀, CNC), Echo L., Mt. Evans, 3230 m, 11. viii. 1961, C. H. Mann, CNC 480696 (1 ♀, CNC), 12. viii. 1961, CNC 480694 (1 ♂, CNC), 24. viii. 1961, CNC 480695 (1 ♂, CNC), Idaho Springs, 5 mi SW, 2621 m, 27. vii. 1961, C. H. Mann, CNC 480713 (1 ♂, CNC), Lake Co., Independence Pass, 3688 m, tundra, 31. vii. 1961, J. G. Chillcott, CNC 480714 (1 ♂, CNC), 8. viii. 1961, B. H. Poole, CNC 480715, CNC 480716 (2 ♂, CNC), Mt. Evans, 3566 m, timberline, 22. vii. 1961, W. R. M. Mason, CNC 480698 (1 ♀, CNC), 3962 m, on tundra, 28. vii. 1961, C. H. Mann, CNC 480699 (1 ♀, CNC), 4267 m, 4. viii. 1961, B. H. Poole, CNC 480697 (1 ♀, CNC), Nederland, 3 mi N, 2590 m, marshy stream margin, 2. vii. 1961, J. G. Chillcott, CNC 480711 (1 ♀, CNC), dry gravelly meadow, CNC 480710 (1 ♂, CNC), Nederland, Science Lodge, 2895 m, 27. vi. 1961, B. H. Poole, CNC 480712 (1 ♀, CNC), Nederland, 2529 m, seepage area, 5. vii. 1961, J. G. Chillcott, CNC 480700 - 480709 (7 ♂ 3 ♀, CNC), Niwot Ridge, nr. Ward, 3444 m, 28. vi. 1961, C. H. Mann, CNC 480690, CNC 480692 (2 ♂, CNC), Vernon Cn., nr. Golden, 2194 m, 31. vii. 1961, C. H. Mann, CNC 480688, CNC 480689, CNC 480691 (2 ♂ 1 ♀, CNC), 2003, CNC 484171 (4 ex, CNC), CT: Litchfield Co., Canaan, Falls Village, 21. vii. 2015, em. 27. vii. 2015, C. Vispo, ex Elymus, # CSE 2170, CNC 564678 (1 ♂, CNC), NC: Clingmans Dome, 35 ° 35 ' 45 " N, 83 ° 29 ' 54 " W, 6500 ', 28. v. 1999, J. R. Vockeroth, CNCDiptera 193694 (1 ♀, CNC), Durham Co., Durham, Pelham Rd., 29. iv. 2017, em. ~ 17 - 22. v. 2017, T. S. Feldman, ex Dichanthelium, # CSE 3675, CNC 939801 - 939802 (2 ♀, CNC), 29. iv. 2017, em. ~ 17. v. 2017, T. S. Feldman, ex Elymus virginicus, # CSE 3676, CNC 939821 (1 ♀, CNC), 13. v. 2017, em. 19. v. 2017, T. S. Feldman, ex Dichanthelium dichotomum ssp. nitidum, # CSE 3693, CNC 939803 (1 ♀, CNC), Scotland Co., Laurinburg, St. Andrews University, 18. iv. 2017, em. 18. v. 2017, T. S. Feldman, ex Agrostis hyemalis, # CSE 3685, CNC 939750 (1 ♂, CNC).	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
7FD9650C8F3D98F05DEFCC6851A280B3.taxon	description	Figs 513 - 518	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
7FD9650C8F3D98F05DEFCC6851A280B3.taxon	description	Description. Wing length 2.3 - 2.6 mm (♂), 2.7 - 2.8 mm (♀). Length of ultimate section of vein M 4 divided by penultimate section: 1.3 - 1.7. Eye height divided by gena height: 6.0 - 10.8. Male first flagellomere much enlarged, circular or slightly higher than long with anterodorsal margin sometimes slightly angled; covered with long, whitish hairs that end before base; female first flagellomere not enlarged or haired as for male, but with anterodorsal margin sometimes slightly angled. Arista slightly thickened on basal 1 / 4 - 1 / 3. Male orbital not strongly projecting, but evident along length when viewed laterally with anterior margin most prominent; female fronto-orbital plate weakly visible laterally. Lunule large, broadly semi-circular with lateral margin meeting fronto-orbital plate; slightly narrower in female. Fronto-orbital plate widest medially, not exceeding 1 / 5 frons width. Posterior ocelli slightly displaced. Chaetotaxy: Two ori (anterior seta slightly shorter); two ors; sometimes with additional ors or minute anterior ori on one side. Orbital setulae in one sparse row; erect with anterior setulae slightly proclinate. Postocellar and ocellar setae subequal to fronto-orbitals. Apex of palpus sometimes with two slightly stronger setae. Four dorsocentrals, decreasing in length anteriorly, anterior dorsocentral almost 1 / 2 length of posterior dorsocentral. Six irregular rows of acrostichal setulae, reduced to two rows posteriorly, nearly attaining posterior margin of scutum; slightly longer posteriorly with one pair sometimes appearing as prescutellar acrostichal setae. Colouration: Setae dark brown, paler when reflecting light. Antenna brown to dark brown with first flagellomere darker; frons dirty yellowish brown with greyish pruinosity, palest on fronto-orbital plate, region between triangle and fronto-orbital plate darker, speckled with minute brown pits; lateral margin of fronto-orbital plate darker brown and base of setae sometimes with minute brown spot; ocellar triangle dark brown, slightly larger than tubercle, confluent with dark brown margin along back of head; slightly paler triangular region surrounding ocellar triangle; dark brown spot in posterolateral corner of frons reaching base of inner vertical seta; lunule smooth, velvety greyish, sometimes slightly darker brown dorsally; clypeus and venter of gena dark brown, remainder of gena dorsally with colour and texture as seen medially on frons; face dark brown with paler regions medially and ventrally. Thorax dark brown with faint pruinosity that is thicker on notum and dorsally on pleuron; notopleuron yellowish, at least in posterolateral corner, where yellow may be more pronounced; scutum with minute light yellow spot at lateral corner of scutellum and sometimes anterior corner of postpronotum. Calypter margin and hairs yellowish white. Wing veins yellow basal to medial 1 / 2 of basal cells. Halter yellow. Legs dark brown; apex of fore femur light yellow for length equal to width of femur; similar faint yellowish pigment often evident on mid and hind femora with hind leg darker; tarsi paler. Abdomen dark brown. Genitalia: (Figs 513 - 518) Epandrium with pronounced process above anus that has base constricted (absent in male from Ohio); surstylus fused to epandrium, small, directed inwards, with three stout tubercle-like setae. Subepandrial sclerite with weak transverse dorsal band and one pair of medial setae; ventral lobe dark, apically tapering and medially curved; outer margin of process minutely serrated subapically and with shallow apical point. Phallophorus with narrow process on left margin, dorsally confluent with basiphallus. Basiphallus with dorsal plate that extends along right side as downturned, pointed process mirroring single sclerite of hypophallus, which is L-shaped and narrow and paler apically; left sclerite of basiphallus dark, clavate and weakly attached to dorsobasal section. Paraphallus (one pair) clear, lobate, with weak comma-shaped sclerotisation. Mesophallus very dark, rod-shaped, narrowest basally; with complete ventral suture; distal 2 / 5 slightly swollen to enclose chamber, with dorsum, ventral surface and lateroventral plate better-sclerotised. Distiphallus S-shaped, divided into one pair of separate parallel tubules; darker to base with clear basal section meeting mesophallus; with small basal curve and larger apical curve both semi-circular in outline; apex slightly swollen for length equal to 2 x width. Ejaculatory apodeme with basally tapering stem with broad base; blade large, clear; sperm pump with basal mottling.	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
7FD9650C8F3D98F05DEFCC6851A280B3.taxon	distribution	Distribution. Canada: AB, BC *, NS *, ON. USA: MA *, MD *, MI *, NC, NY *, OH *, VA *, WV *. Europe (Papp and Cerny 2016).	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
7FD9650C8F3D98F05DEFCC6851A280B3.taxon	materials_examined	Material examined. Canada. AB: Jumping Pd. Cr., 20 mi W Calgary, 28. vi. 1962, K. C. Hermann, CNC 480756 (1 ♂, CNC), BC: Atlin, 6. vii. 1955, B. A. Gibbard, CNC 480770 (1 ♀, CNC), Royston, 7. vi. 1955, R. Coyles, CNC 480760 (1 ♂, CNC), Terrace, marshy meadow, 11. vi. 1960, J. G. Chillcott, CNC 480740 - 480742 (3 ♂, CNC), 31. v. 1960, C. H. Mann, CNC 480743 - 480747, CNC 480771 - 480778 (5 ♂ 8 ♀, CNC), R. J. Pilfrey, CNC 480779 (1 ♀, CNC), 31. vi. 1960, J. G. Chillcott, CNC 480748 - 480754, CNC 480780 - 480785 (7 ♂ 6 ♀, CNC), Zymagotitz River, 6 mi W Terrace, 57 m, 20. iii. 1960, R. Pilfrey, CNC 480739 (1 ♂, CNC), NS: Kentville, 6. viii. 1958, J. R. Vockeroth, CNC 480757, CNC 480768, CNC 480769 (1 ♂ 2 ♀, CNC), ON: Dresden, 2. vii. 1962, S. M. Clark, CNC 480767 (1 ♀, CNC), Midland, swamp woods, balsam poplar, 2. v. 1959, J. G. Chillcott, CNC 480765 (1 ♀, CNC), North Gower, 14. vii. 1985, D. Bell, light trap, CNC 480758 (1 ♂, CNC), Ottawa, 14. v. 1957, J. G. Chillcott, CNC 480766 (1 ♀, CNC), swept from Sagittaria, 3. ix. 1989, J. R. Vockeroth, CNC 480759 (1 ♂, CNC), St. Lawrence Is. Nat. Par., McDonald Is., 14. vii. 1976, A. Carter, Code 4092 - J, CNC 480761 (1 ♂, CNC), St. Lawrence Is. Nat. Park, Thwartway Is., 17. vii. 1976, A. Carter, Code 4133 - Y, CNC 480762 (1 ♂, CNC), St. Lawrence Is., Thwartway Is., 4. viii. 1976, W. Reid, Code 4322 - H, CNC 480764 (1 ♀, CNC), Bells Corners, 5. vii. 1973, F. Crombie and P. Nash, CNC 480763 (1 ♂, CNC). USA. MA: Concord, 17. vii. 1961, W. W. Wirth (1 ♂, USNM), Woods Hole, vii. 1918, A. H. Sturtevant (1 ♂, USNM), MD: Lavale, 9. v. 1970, G. Steyskal (1 ♂, USNM), Montgomery Co., Clarksburg, Little Bennett Reg. Park, 21. ix. 1990, W. E. Steiner and M. J. and R. Molineaux (1 ♂, USNM), Montgomery Co., Bethseda, 4. v. 1969, G. Steyskal (1 ♂, USNM), Montgomery Co., 4 mi SW of Ashton, 25. iv. 1987, G. F. and J. F. Hevel (1 ♂, USNM), 28. iv. 1985 (1 ♂, USNM), MI: Isle Royale, 3 - 7. viii. 1936, C. Sabrosky (1 ♂, USNM), NC: Mitchell Co., Roan Mtn., 1889 m, 13. viii. 1957, J. G. Chillcott, CNC 480755 (1 ♂, CNC), NY: Geneva, 28. v. 1914, A. L. Melander (1 ♂, USNM), OH: Columbiana Co., Beaver Creek, 40 ° 43.8 ' N, 80 ° 36.5 " W, 7. vii. 1976, B. A. Steinly (1 ♂, USNM), Stark Co., Berlin Reservoir, 40 ° 58.9 ' N, 81 ° 06.0 ' W, 7. vii. 1976, B. A. Steinly, sand shore, 200 net sweeps (1 ♂, USNM), VA: Big Meadows, 3. vii. 1939, A. L. Melander (1 ♂, USNM), WV: Greenbrier Co., Charmco, 6. ix. 1982, G. F. and J. F. Hevel (1 ♂, USNM), Morgan Co., near Great Cacapon, 3. vii. 1983, G. F. and J. F. Hevel (1 ♂, USNM), White Sulfur Springs, 16. vi. 1970, G. Steyskal (1 ♂, USNM).	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
4C3E6D9D21EBC2F9BF113ED96F79E186.taxon	description	Figs 519 - 524	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
4C3E6D9D21EBC2F9BF113ED96F79E186.taxon	description	Description. Wing length 2.4 - 3.0 mm (♂), 2.8 - 3.2 mm (♀). Length of ultimate section of vein M 4 divided by penultimate section: 1.2 - 1.3. Eye height divided by gena height: 4.9 - 8.5. Male first flagellomere much enlarged, broadly kidney-shaped to subcircular, and covered with long, whitish hairs that end before base; female first flagellomere ovate, not enlarged as in male, but with slightly longer hairs along anterior margin. Arista slightly thickened on basal 1 / 4. Eye prominent anteriorly above midpoint. Fronto-orbital plate not projecting except slightly in front of prominent anterior margin of eye; fronto-orbital plate widest medially, not exceeding 1 / 4 frons width. Lunule large, broadly semi-circular with lateral margin meeting fronto-orbital plate; slightly narrower in female. Posterior ocelli slightly displaced. Chaetotaxy: Two ori (anterior seta slightly shorter, entirely absent in Glen Echo male); two ors. Orbital setulae erect to reclinate, in one sparse row. Postocellar and ocellar setae subequal to fronto-orbitals. Two or three (rarely four) stronger apical setae on palpus. Four dorsocentral setae, slightly decreasing in length anteriorly, with anterior seta as small as 2 / 3 length of posterior seta. Four to five scattered rows of acrostichal setulae not reaching level of posterior dorsocentral; posterior pair of setulae larger, almost seta-like. Colouration: Setae dark brown. Body dark brown with faint pruinosity that is moderately dense on notum and dorsally on pleuron. Frons slightly paler, inner margin of fronto-orbital plate narrowly yellowish; ocellar triangle (slightly larger than tubercle), face, clypeus, palpus and venter of gena darker; pedicel and remainder of gena slightly yellowish; centre of frons and gena with minute brown pits; lunule velvety and slightly iridescent. Notopleuron and postpronotum slightly paler brown with yellowish mottling. Calypter margin and hairs yellowish white. Wing veins yellowish basally. Halter yellow. Apex of fore femur light yellow for length equal to femur width; apices of mid and hind femora narrowly and faintly yellowish, darker on hind leg; base of fore tibia narrowly light yellow. Abdominal segments 1 - 5 light yellow, with faint, elongate medial spot on tergites 2 - 5, which becomes larger on successive tergites; tergite 1 sometimes with brownish dorsal infuscation; sometimes tergite 5 brownish to brown with centre darker, and specimens from USA with tergite 5 dark brown. Genitalia: (Figs 519 - 524) Epandrium with pronounced, rounded process above anus. Surstylus fused to epandrium, directed inwards, with irregular row of long tubercle-like setae. Subepandrial sclerite with transverse dorsal band nearly divided medially with one pair of setae; ventral lobe dark, elongate, slightly curved and with minute outer-apical point. Phallophorus with thin left lateral extension, dorsally fused to mesophallus. Mesophallus extends along dorsal to right lateral surface where it produces narrow dark process distally that mirrors strong left sclerite of hypophallus; with irregular dorsomedial sclerite and thin, apically clavate left lateral sclerite. Left lateral sclerite of hypophallus dark, mostly straight with slight medial bend; with small, very faint to absent rod-like right lateral sclerite. Paraphallus directed ventrally, relatively dark and curved, appearing pointed when viewed laterally. Mesophallus dark, with complete ventral suture (largely indistinct), relatively short and stout with apical swelling 2 / 5 length of segment; stem strongly swollen medially, tapered at base and apex; apical bulb most heavily sclerotised along dorsum, ventrolaterally and along ventral suture. Distiphallus divided into one pair of tubules that are S-shaped in profile, as long as distance from apex of mesophallus to apex of phallophorus, and diverging on distal 1 / 2; basal curve nearly as long as distal curve, but shallower and with irregularly sclerotised base; distal curve semi-circular with apical segment that is paler and as long as wide. Ejaculatory apodeme with wide stem that is nearly symmetrical; blade paler to margin; sperm pump pale but base of duct lightly pigmented.	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
4C3E6D9D21EBC2F9BF113ED96F79E186.taxon	distribution	Distribution. Canada. NB *, ON *. USA: CA, MA *, MD *, NC *, NY *, TN *.	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
4C3E6D9D21EBC2F9BF113ED96F79E186.taxon	materials_examined	Material examined. Canada. NB: Kouchibouguac N. P., 12. vii. 1977, J. F. McAlpine, Code - 6041 I, CNC 480799 (1 ♀, CNC), 6. vii. 1977, Code - 6039 G, CNC 480793 - 480798 (4 ♂ 2 ♀, CNC), 9. vii. 1977, Code - 6023 Q, CNC 480788 - 480792 (5 ♂, CNC), 13. vii. 1977, Code - 6042 J, CNC 480800 (1 ♀, CNC), 26. vi. 1977, J. R. Vockeroth, CNC 480787 (1 ♂, CNC), 30. vi. 1977, Code - 5456 V, CNC 480801 (1 ♀, CNC), ON: Iroquois Falls, nearly bare damp sand, 30. vi. 1987, J. R. Vockeroth, sweeping, CNC 480786 (1 ♂, CNC). USA. MA: Greenfield, 1. vi. 1914, A. L. Melander (1 ♂, USNM), Boston, May, A. L. Melander (1 ♂, USNM), MD: Glen Echo, 26. v. 1923, J. R. Malloch (1 ♂, USNM), NC: Gt Smokies N. P., Clingman's Dome, 21. vi. 1941, A. L. Melander (1 ♂, USNM), NY: Bear Mt., 31. v. 1937, A. L. Melander (2 ♂, USNM), Smokies, Andrews Bald, 9. vii. 1941, A. L. Melander (3 ♂, USNM), TN: Smokies, Chimneys, 21. vi. 1941, A. L. Melander (1 ♂, USNM), Gt Smokies N. P., Newfnd Ridge, 11. vii. 1941, A. L. Melander (1 ♂, USNM). Locality unknown. [illegible], 5. vii. 1913, CNC 480802 (1 ♂, CNC).	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
5038C8AF3FE6A7D4C92FD48DBBA9A18C.taxon	description	Figs 525 - 528	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
5038C8AF3FE6A7D4C92FD48DBBA9A18C.taxon	description	Description. Wing length 2.0 - 2.4 mm (♂), 2.3 - 2.6 mm (♀). Length of ultimate section of vein M 4 divided by penultimate section: 1.1 - 1.6. Eye height divided by gena height: 4.5 - 6.2. Male first flagellomere much enlarged, circular or slightly higher than long, and covered with long, whitish hairs that end before base; female first flagellomere not enlarged as for male, but with anterodorsal margin sometimes slightly angled and with slightly longer whitish hairs anteromedially. Arista slightly thickened on basal 1 / 4 - 1 / 3. Eye large and rounded, projecting anteromedially. Fronto-orbital plate weakly visible laterally, widest medially, not more than 1 / 5 width of frons. Lunule large, broadly semi-circular with lateral margin meeting fronto-orbital plate; slightly narrower in female. Posterior ocelli slightly displaced. Chaetotaxy: Two ori (anterior seta shorter, but rarely absent); two ors. Orbital setulae erect to reclinate, in one sparse row. Postocellar and ocellar setae subequal to fronto-orbitals. Four dorsocentral setae, slightly decreasing in length anteriorly with anterior seta as short as 2 / 3 length of posterior seta. Acrostichal seta present. Five irregular rows of acrostichal setulae. Apex of palpus with one or two slightly longer setae. Colouration: Setae dark brown. Head brown with face and first flagellomere darker; ocellar triangle (slightly larger than tubercle), back of head, venter of gena and clypeus dark brown; male fronto-orbital plate and pedicel dark brown, female sometimes with pigment faded anteriorly on fronto-orbital plate and pedicel; lunule paler, dorsum beige. Gena and frons between triangle and fronto-orbital plates with minute brown pits. Thorax dark brown with greyish pruinosity strongest on notum and dorsally on pleuron; postpronotum and notopleuron light yellow to whitish yellow excluding dark narrow lateral spot on notopleuron and small to large anteromedial spot on postpronotum; supra-alar margin of scutum sometimes yellowish. Calypter margin and hairs yellowish white. Wing veins light brown to brown, becoming whitish on basal 1 / 3 - 1 / 2. Halter yellow. Legs dark brown with apices of femora distinctly light yellow for length equal to width of femur. Abdomen dark brown with pregenital tergites narrowly and faintly yellow laterally. Genitalia: (Figs 525 - 528) Epandrium with very shallow dorsal process above anus. Surstylus fused to epandrium, turned inwards and expanding dorsally, with row of six to seven tubercle-like setae. Subepandrial sclerite with transverse dorsal rod that is medially broken and with one pair of setae; ventral lobe long, curved, narrow and with slight outer-distal point. Phallophorus produced along left lateral margin, dorsally fused to relatively broad dorsomedial section of basiphallus that extends along right lateral surface as flat downturned process mirroring left sclerite of hypophallus; left lateral process plate-like, slightly longer than wide, abutting dorsal sclerite on basal 1 / 2, dark along concave apical margin; basiphallus relatively short and compact. Hypophallus dominated by left lateral sclerite that is dark and rod-like medially with paler, broad, curved lateral extension; sometimes with small, dark right lateral sclerite. Paraphallus weak, lobate, with small, faint irregular sclerotised patch ventrally. Mesophallus dark, narrow, rod-like, with distal 1 / 3 abruptly swollen and with dorsal, ventrolateral, and ventromedial surfaces darker. Distiphallus entirely divided into two tubules, relatively short, as long as mesophallus; S-shaped, darker to base, with middle either perpendicular to long axis of phallus or slightly more angled (as in figure); tapering apically with minutely textured and sclerotised dorsolateral membrane; curves shallow, basal curve slightly shorter. Ejaculatory apodeme not observed.	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
5038C8AF3FE6A7D4C92FD48DBBA9A18C.taxon	distribution	Distribution. Canada: BC [unconfirmed record from Frick (1959)], MB *, NB *, NS *, ON *, QC *. USA: CO, CT *, DC, DE *, IA, IL, IN, MI, NC *, NH, NY *, OH, OK, PA, TN, VA *.	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
5038C8AF3FE6A7D4C92FD48DBBA9A18C.taxon	materials_examined	Material examined. Canada. MB: Aweme, 18. vii. 1916, N. Criddle, Teste Aldrich, CNC 480810 (1 ♂, CNC), 28. viii. 1917, CNC 480803, CNC 480806 (1 ♂ 1 ♀, CNC), 30. viii. 1917, CNC 480815 (1 ♀, CNC), Ninette, Oak-Aspen community, 11. vi. 1958, J. F. McAlpine, CNC 480827 (1 ♂, CNC), Maple-Elm floodplain community, 12. vi. 1958, J. F. McAlpine, CNC 480828 (1 ♀, CNC), ex Betula glandulosa, 15. vii. 1958, CNC 480826 (1 ♂, CNC), NB: Chamcook, 9. viii. 1957, G. E. Shewell, CNC 480824, CNC 480825 (1 ♂ 1 ♀, CNC), NS: Smith's Cove, 6. viii. 1925, A. Gibson, CNC 480804 (1 ♂, CNC), ON: Bell's Cor., 16. vi. 1954, D. Cobb, CNC 480820 (1 ♂, CNC), Britannia, 17. vi. 1938, G. E. Shewell, CNC 480805 (1 ♂, CNC), Grand Bend, 15. vii. 1939, G. E. Shewell, CNC 480813 (1 ♀, CNC), Iroquois Falls, overgrown wet shrubby bog, 18. vi. 1987, J. R. Vockeroth, CNC 480819 (1 ♂, CNC), Marmora, 25. viii. 1952, C. Boyle, CNC 480823 (1 ♂, CNC), Midland, 20. v. 1959, J. G. Chillcott, CNC 480821 (1 ♂, CNC), Ottawa, 3. vi. 1958, J. R. Vockeroth, CNC 480822 (1 ♂, CNC), Simcoe, 9. vi. 1939, G. E. Shewell, CNC 480808, CNC 480812 (1 ♂ 1 ♀, CNC), Smith's Falls, 22. vi. 1984, J. R. Vockeroth, CNC 480816 (1 ♀, CNC), Strathroy, 9. viii. 1916, H. G. Crawford, CNC 480809 (1 ♂, CNC), QC: Wakefield, 9. vii. 1946, G. E. Shewell, CNC 480814 (1 ♀, CNC). USA. CO: Middle St., Vrain Cr., 3 mi SW Raymond, 2499 m, 11. viii. 1961, J. G. Chillcott, CNC 480811 (1 ♀, CNC), CT: Redding, 12. viii. 1930, A. L. Melander (1 ♂, USNM), DE: Gumboro, 2. viii. 1952, C. Sabrosky (1 ♂, USNM), IA: Ames, 10. vii. 1947, A. R. Brooks, CNC 480817, CNC 480818 (1 ♂ 1 ♀, CNC), MI: Leelanau Co., 22. vi. 1937, C. Sabrosky (4 ♂, USNM), NC: Macon Co., Highlands Lake Revenel, 17. vi. 1986, W. W. Wirth, Malaise trap (1 ♂, USNM), NY: Orleans Co., Albion, Burma Woods, 11. vi. 1963, W. W. Wirth (1 ♂, USNM), OH: Columbiana Co., Beaver Creek S. P., 40 ° 43.8 ' N, 80 ° 36.5 ' W, 7. vii. 1976, B. A. Steinly (1 ♂, USNM), Champion Co., Kiser Lake S. P., 41 ° 22.9 ' N, 82 ° 19.0 ' W, 22. ix. 1976, B. A. Steinly (1 ♂, USNM), Lorain Co., Vermillion River, Mill Hollow C. P., 41 ° 22.9 ' N, 82 ° 19.0 ' W, 22. ix. 1976, B. A. Steinly, grass shore, temporary pool, 200 net sweeps (2 ♂, USNM), PA: Erie Co., Lake Erie, Presque Isle S. P., 42 ° 08.3 ' N, 80 ° 08.5 ' W, 6. v. 1977, B. A. Steinly (1 ♂, USNM), TN: Knoxville, Univ. Farm, 20. v. 1957, J. R. Vockeroth, CNC 480807 (1 ♂, CNC), VA: Montgomery Co., Jefferson Nat. Forest, Poverty Creek Trail, 15. v. 1997, D. C. Caloren (1 ♂, DEBU), Giles Co., Mountain Lk. Biol. Stn., trail to Bear Cliff, 23. v. 1997, D. C. Caloren (1 ♂, DEBU), M. Lk. Biological Stn., 37 ° 22 ' 31 " N, 80 ° 31 ' 18 " W, Malaise trap, 13 - 26. v. 2001, Sylvatica Pond, J. Knopp (1 ♂, DEBU), Big Meadows, 1. vii. 1939, A. L. Melander (1 ♀, USNM).	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
201DA6FC992A67689EB4D39DECAE0621.taxon	description	Figs 105, 529 - 534	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
201DA6FC992A67689EB4D39DECAE0621.taxon	description	Description (Fig. 105). Wing length 2.3 - 2.8 mm (♂), 2.4 - 2.8 mm (♀). Length of ultimate section of vein M 4 divided by penultimate section: 1.2 - 1.4. Eye height divided by gena height: 5.4 - 11.8. Male first flagellomere much enlarged, circular or slightly higher than long, and covered with long, whitish hairs that end before base; female first flagellomere not enlarged as for male, but with slightly longer whitish hairs anteromedially. Arista slightly thickened on basal 1 / 4 - 1 / 3. Fronto-orbital plate weakly visible laterally, most prominent anteriorly, widest medially, not more than 1 / 5 width of frons. Lunule large, broadly semi-circular with lateral margin meeting fronto-orbital plate; slightly narrower in female. Posterior ocelli slightly displaced. Chaetotaxy: Two ori (anterior seta slightly shorter to 2 / 3 length posterior ori); two ors. Orbital setulae erect to reclinate, in one sparse row. Postocellar and ocellar setae subequal to fronto-orbital setae, but fronto-orbitals sometimes reduced to 1 / 2 of normal length. Four dorsocentral setae varying in length, sometimes only slightly decreasing in length anteriorly, but anterior seta as small as 1 / 3 length posterior seta. Colouration: Setae dark brown. Antenna brown to dark brown with first flagellomere darker; pedicel and scape dark brown in female; frons brown to dirty yellowish brown with greyish pruinosity; fronto-orbital plate dark brown, but sometimes brown (not yellowish) with darker pigment reduced to posterolateral vestige; ocellar triangle dark brown, slightly larger than tubercle, confluent with dark brown margin along back of head; dark brown spot in posterolateral corner of frons reaching base of inner vertical seta; slightly paler triangular region bordering ocellar triangle; lunule smooth, velvety greyish; clypeus, venter of gena and face dark brown; gena and frons between triangle and fronto-orbital plates with minute brown pits. Thorax dark brown with notopleuron and postpronotum slightly paler brown with posterolateral corners sometimes yellowish to yellow; with greyish pruinosity that is strong on notum and dorsally on pleuron. Calypter margin and hairs yellowish white. Wing veins brown, yellowish white from base to basal cells. Halter yellow. Legs dark brown with apex of fore femur light yellow for length equal to width of femur; apices of mid and hind femora varying from slightly yellowish to broadly light yellow as seen on fore leg. Genitalia: (Figs 529 - 534) Epandrium with strong process above anus that is constricted basally. Subepandrial sclerite with transverse dorsal bar that is broken medially and with one pair of setae; ventral lobe long, dark, relatively straight and with minute outer-apical point. Surstylus fused to epandrium, directed inwards, with double row of many long tubercle-like setae. Phallophorus dorsally fused to dorsomedial plate of mesophallus. Mesophallus medially split into curved, pointed arms, with right lateral arm elongate and mirroring left sclerite of hypophallus. Left sclerite of hypophallus dark, rod-like and with outer carina that can be pronounced or much reduced; right sclerite apparently absent. Paraphallus clear, lobate. Mesophallus and distiphallus narrow, elongate, and dark. Mesophallus with slight apical swelling. Distiphallus divided into one pair of subparallel S-shaped tubules; basal curve very small, shallow; apical curve longer than mesophallus, sometimes recurved apically (curve less pronounced in smaller specimens) and with middle slightly to more obviously flattened / straightened. Ejaculatory apodeme relatively dark, with stem expanding into broad blade that is slightly clearer marginally; base of sperm pump and base of duct pigmented.	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
201DA6FC992A67689EB4D39DECAE0621.taxon	distribution	Distribution. Canada: NB *, ON *, QC * [previous records considered magnicornis (Spencer and Steyskal 1986 b)]. USA: CA, DE *, MA, MO, NC *, OH *, OK (tentatively identified females; Eiseman et al. 2021), PA *, TN *, VA *, WV *; records from IL, IN, MD, MI and SD (Frick 1959; Priest et al. 2020) require verification. Europe, Canary Islands, China, Japan, North Korea, Russia, India, Philippines (Papp and Cerny 2016).	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
201DA6FC992A67689EB4D39DECAE0621.taxon	materials_examined	Material examined. Canada. NB: Kent Co., Sainte-Anne-de-Kent, 46 ° 34 ' N, 64 ° 47 ' W, 28 - 29. vii. 2013, O. Lonsdale, CNC 480850 (1 ♀, CNC), ON: Normandale, 42 ° 42 ' N, 80 ° 19 ' W, 22. v. 1956, J. R. Vockeroth, CNC 480868, CNC 480869 (1 ♂ 1 ♀, CNC), 24. v. 1956, CNC 480870 (1 ♀, CNC), 27. v. 1956, CNC 480867 (1 ♂, CNC), Ottawa, Dow's Swamp, 3. vi. 1958, L. Smith, CNC 480865 (1 ♀, CNC), Ottawa, 19. vi. 1954, W. R. M. Mason, CNC 480866 (1 ex, CNC), 19. vii. 1954, CNC 480858 (1 ♂, CNC), 26. vii. 1959, J. R. Vockeroth, CNC 480862 (1 ♂, CNC), 30. v. 1958, CNC 480864 (1 ♀, CNC), 31. v. 1959, CNC 480860 (1 ♂, CNC), 9. vi. 1958, CNC 480861, CNC 480863 (1 ♂ 1 ♀, CNC), 8. vii. 1952, G. E. Shewell, CNC 480859 (1 ♂, CNC), QC: Old Chelsea, summit of King Mt., 350 m, 21. vi. 1959, J. R. Vockeroth, CNC 480857 (1 ♀, CNC), Old Chelsea, 11. viii. 1959, C. H. Mann, CNC 480855 (1 ♂, CNC), 13. ix. 1956, J. R. Vockeroth, CNC 480854 (1 ♂, CNC), 16. ix. 1958, CNC 480856 (1 ♀, CNC), sweeping, Pedicularis canadensis L., 14. v. 1987, J. R. Vockeroth, CNC 480851 (1 ♂, CNC), Perkins Mills, 25. viii. 1949, G. E. Shewell, CNC 480853 (1 ♀, CNC). USA. DE: New Castle Co., Newark, Rittenhouse, 6. ix. 2003, K. Bennett, sweeping (1 ♀, UDCC), MA: Berkshire Co., Lenox, Mahanna Cobble, 23. vi. 2016, C. S. Eiseman, Carex gracillima em. 28. vi. 2016, # CSE 2644, CNC 634778 (1 ♂, CNC), Berkshire Co., Lenox, Mahanna Cobble, 23. vi. 2016, C. S. Eiseman, Carex hitchcockiana, em. 30. vi- 4. vii. 2016, # CSE 2678, CNC 654235, CNC 654236 (1 ♂ 1 ♀, CNC), MD: Lavale, 9. v. 1970, G. Steyskal (3 ♂, USNM), Montgomery Co., Bethseda, 5. v. 1968, L. V. Knutson (1 ♂, USNM), 9. iv. 1968, G. Steyskal (5 ♂, USNM), 13. iv. 1968, G. Steyskal (1 ♂, USNM), Colesville, 11. vii. 1974, W. W. Wirth (1 ♂, USNM), NC: Grt. Sm. Mt. Nat. Park, Clingman's Dome, 6. viii. 1957, C. J. Durden, CNC 480830, CNC 480844 - 480849 (5 ♂ 2 ♀, CNC), Highlands, 14. vii. 1957, W. R. Richards, CNC 480843 (1 ♀, CNC), OH: Hancock Co., Rocky Ford River, 41 ° 06.7 ' N, 83 ° 45.6 ' W, 21. ix. 1976, B. A. Steinly (1 ♂, USNM), PA: Allegheny Co., nr. Clairton, 4. vii. 1997, C. R. Bartlett, sweeping (1 ♀, UDCC), Chester Co., Avondale, Stroud Water Rsch. Ctr., 15. ix. 2000, A. L. Park, sweep net (2 ♀, UDCC), TN: Gr. Sm. Mt. Nat. Park, Collins Gap, 1737 m, 22. viii. 1957, J. G. Chillcott, CNC 480842 (1 ♀, CNC), Gr. Sm. Mt. Nat. Park, Indian Gap to Clingman's Dome, 1584 - 2011 m, 6. viii. 1957, J. G. Chillcott, CNC 480829, CNC 480832 - 480840 (8 ♂ 2 ♀, CNC), 6. viii. 1957, CNC 480841 (1 ♂, CNC), VA: Giles Co., Mountain Lake, 1158 m, sedge meadows, 31. v. 1962, J. G. Chillcott, CNC 480852 (1 ♂, CNC), Great Smoky Mt. N. P., NC Tenn., Indian Gap, 1584 m, 23. v. 1957, W. R. M. Mason, CNC 480831 (1 ♂, CNC), Giles Co., Mountain Lake Biol. Stn., 37 ° 22 ' 31 " N, 80 ° 31 ' 18 " W, 24. v. 2001, O. Lonsdale (1 ♀, DEBU), Giles Co., Mountain Lake, 7. ix. 1976, G. C. Steyskal (2 ♂, USNM), Northampton Co., Kiptopeke, 4 - 6. x. 1986, W. E. Steiner et al., Malaise trap, dunes between cliff and beach (1 ♂, USNM), Chain Bridge, 20. iv. 1924, J. R. Malloch (1 ♂, USNM), WV: White Sulfur Springs, 16. vi. 1970, G. Steyskal (1 ♂, USNM).	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
201DA6FC992A67689EB4D39DECAE0621.taxon	materials_examined	Tentatively identified material. USA. OK: Payne Co., Marena, 28. v. 2016, em. 8 - 13. vi. 2016, M. W. Palmer, ex Carex festucacea, # CSE 2568, CNC 634779 (1 ♀, CNC), Mehan, 36.014339 ° N, 96.996744 ° W, 6. v. 2016, em. 8. v. 2016, M. W. Palmer, ex Carex festucacea, # CSE 2665, CNC 634805 (1 ♀, CNC).	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
357B372B237386382D8B2BE85688B6B3.taxon	description	Figs 103, 535 - 538	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
357B372B237386382D8B2BE85688B6B3.taxon	description	Description (Fig. 103). Wing length 1.6 - 2.6 mm (♂), 2.5 - 2.9 mm (rarely 1.9 - 2.2 mm) (♀). Length of ultimate section of vein M 4 divided by penultimate section: 1.0 - 1.1. Eye height divided by gena height: 5.6 - 7.7. Lunule semi-circular, slightly higher than wide. Fronto-orbital plate not defined. Ocellar triangle ill-defined, apparently ending at or before lunule. Chaetotaxy: Two ori (anterior seta slightly reduced to absent, but usually 1 / 2 - 2 / 3 length); two ors. Ocellar and postocellar setae slightly longer than fronto-orbitals. Four dorsocentral setae, slightly decreasing in length anteriorly, but sometimes two anterior setae both short. Acrostichal seta absent. Apparently six irregular rows of acrostichal setulae ending in front of level of posterior dorsocentral. Colouration: Body subshiny with frons slightly velvety. Setae dark brown with paler shine. Antenna dirty orange to brownish, with pedicel browner and distal margin yellow, and male first flagellomere browner on basal 1 / 2 of inner surface and along dorsal margin; female first flagellomere dark brown to brown with orange tint that may predominate along base; frons light yellow, becoming whitish anteriorly on fronto-orbital plate; ocellar spot larger than tubercle, dark brown; posterolateral corner of frons dark brown to base of inner vertical seta or slightly beyond; dark brown posteriorly to base of posterior or anterior ors, with pigment often fading to absent in front of posterior ors; lunule light yellow; occiput, gena, parafacial and face yellowish white; mouthparts, including palpus yellow; clypeus brown with centre paler brown to yellow; back of head dark brown. Thorax dark brown with moderate greyish pruinosity. Calypter margin and hairs light yellow. Wing veins brown with base yellow. Halter yellow. Legs dark brown with tibiae and tarsi paler brown; distal 1 / 2 of coxae variably yellowish, at least apically on mid coxa; distal 35 - 50 % of femora light yellow, but this sometimes reduced to 25 % on mid and hind legs; tibiae narrowly yellow basally. Abdomen dark brown. Genitalia: (Figs 535 - 538) Epandrium with process above anus well-developed. Surstylus fused to epandrium, with four to seven tubercle-like setae. Cercus large, prominent. Lobe of subepandrial sclerite dark, tapering apically. Hypandrium tapering to a point. Basiphallus with right lateral process emerging medially. Hypophallus narrow, rod-like. Paraphallus absent. Mesophallus very narrow, elongate, cylindrical, constricted medially and with abruptly narrower, darker base; narrowed basal section of variable length, ranging from 1 / 4 - 1 / 3 length of segment. Distiphallus divided into one pair of very narrow tubules that become paler apically and are slightly flared at opening; broadly arched backwards, sometimes reaching midpoint of mesophallus. Ejaculatory apodeme with moderately large blade that becomes paler marginally; sperm pump with basal pigment. See Boucher (2012) for discussion of variation of northern and western specimens.	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
357B372B237386382D8B2BE85688B6B3.taxon	distribution	Distribution. Canada: AB, BC, MB, NT, NS, ON, QC, SK. USA: AK, AR, CA, CT, FL, IA, ID, IL, IN, KS, LA, MA, MD, ME, MI, MN, MS, MT, NC, NE, NH, NJ, NV, NY, OK, OR, PA, SD, TN, TX, VA, VT, WA, WI, WV, WY.	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
357B372B237386382D8B2BE85688B6B3.taxon	materials_examined	Material examined. Canada. AB: Lethbridge, 5. vi. 1929, J. H. Pepper, CNC 480922 (1 ♂ CNC), McMurray, 6. viii. 1963, G. E. Ball, CNC 480978 (1 ♀, CNC), BC: Terrace, 10 mi N, 16. vii. 1960, B. Heming, CNC 481008 (1 ♀, CNC), MB: Aweme, 24. viii. 1916, N. Criddle, CNC 480933 (1 ♂ CNC), 27. viii. 1917, CNC 480905, CNC 480934, CNC 480982 (2 ♂ 1 ♀, CNC), 28. viii. 1917, CNC 480981 (1 ♀, CNC), 4. ix. 1923, H. A. Robertson, CNC 480935 (1 ♂ CNC), Treesbank, 18. x. 1927, N. Criddle, CNC 480979 (1 ♀, CNC), NB: St. Andrews, 8. vii. 1957, G. E. Shewell, CNC 480977 (1 ♀, CNC), NT: Yellowknife, Kam Lake, 20. vi. 1966, G. E. Shewell, CNC 480908 (1 ♂ CNC), ON: Algonquin Provincial Park, Whitefish Lake Group Campground, 45 ° 33 ' 47.01 " N, 78 ° 26 ' 13 " W, 414 m, 28. vi- 2. vii. 2008, J. andA. Skevington, Malaise trap, CNC 339240 (1 ♀, CNC), Ottawa, Stony Swamp, Beaver Trail, 45 ° 18 ' 0 " N, 75 ° 49 ' 16 " W, 13. vi. 2015, O. Lonsdale, CNC 441040, CNC 441081, CNC 441097 (2 ♂ 1 ♀, CNC), Sudbury Dist., Killarney Provincial Park, Lake of the Woods Trail, 46 ° 6 ' 36 " N, 81 ° 11 ' 48 " W, 2. ix. 2014, O. Lonsdale, CNC 380796 (1 ♀, CNC), Bell's Cor., 21. ix. 1951, J. F. McAlpine, CNC 480880, CNC 480912, CNC 480971 (2 ♂ 1 ♀, CNC), Bells Corners, 28. vi. 1971, H. J. Teskey, CNC 480915 (1 ♂ CNC), Constance Bay Rd., Harwood Plains, 19. vii. 1967, G. E. Shewell, CNC 480972, CNC 480973 (2 ♀, CNC), Grand Bend, 15. vii. 1939, G. E. Shewell, CNC 480970 (1 ♀, CNC), Marmora, 12. viii. 1952, J. F. McAlpine, CNC 481014 (1 ♀, CNC), on weeds by water, 7. viii. 1952, CNC 481015 (1 ♀, CNC), Mattawa, 16. vi. 1987, J. R. Vockeroth, CNC 480911 (1 ♂ CNC), Metcalfe, 30. vii. 1983, B. E. Cooper, CNC 480907 (1 ♂ CNC), Midland, 20. v. 1959, J. G. Chillcott, CNC 480909 (1 ♂ CNC), 20. viii. 1955, J. G. Chillcott, CNC 480969 (1 ♀, CNC), Miners B., 26. v. 1939, G. E. Shewell, CNC 480920, CNC 480960 - 480962 (1 ♂ 3 ♀, CNC), Newtonville, 26. ix. 1983, J. R. Vockeroth, CNC 481011 (1 ♀, CNC), Normandale, 42 ° 42 ' N, 80 ° 19 ' W, 2. vi. 1956, J. R. Vockeroth, CNC 480963, CNC 480964 (2 ♀, CNC), Ottawa, Black Rapids, 28. vii. 1959, J. R. Vockeroth, CNC 481013 (1 ♀, CNC), Ottawa, 12. vi. 1957, J. G. Chillcott, CNC 480872 (1 ♂ CNC), 14. v. 1957, CNC 480879, CNC 480954 (1 ♂ 1 ♀, CNC), 19. vi. 1957, CNC 480951 (1 ♀, CNC), 23. v. 1957, CNC 480953 (1 ♀, CNC), 26. v. 1958, CNC 480878, CNC 480952 (1 ♂ 1 ♀, CNC), 12. vii. 1956, J. R. Vockeroth, CNC 480950 (1 ♀, CNC), 2. vi. 1958, CNC 480946 (1 ♀, CNC), 3. vi. 1958, CNC 480873 - 480877, CNC 480947 - 480949 (5 ♂ 3 ♀, CNC), 19. vii. 1946, G. E. Shewell, CNC 480871 (1 ♂ CNC), Point Pelee, 9. ix. 1954, W. R. Mason, CNC 480966, CNC 480967, CNC 480968 (3 ♀, CNC), W. R. M. Mason, CNC 480924, CNC 480925 (2 ♂ CNC), Port Severn, 3 mi N, Black spruce bog, 18. v. 1959, J. G. Chillcott, CNC 480910, CNC 480917, CNC 480965 (2 ♂ 1 ♀, CNC), Pr. Edward Co., Outlet Beach, 14. viii. 1968, J. R. Vockeroth, CNC 480914 (1 ♂ CNC), Pt. Pelee Nat. Pk., 1. ix. 1983, S. Marshall, C. Logan and S. Grigsby, dry Malaise, CNC 480916 (1 ♂ CNC), Rockport, 12. v. 1959, J. R. Vockeroth, CNC 481012 (1 ♀, CNC), Rondeau Park, 7. ix. 1954, W. R. M. Mason, CNC 480926, CNC 480927, CNC 480928 (3 ♂ CNC), Simcoe, 13. vi. 1939, G. E. Shewell, CNC 480929 (1 ♂ CNC), 24. vi. 1939, CNC 480958 (1 ♀, CNC), 29. v. 1939, CNC 480930 (1 ♂ CNC), 30. v. 1939, CNC 480931, CNC 480932 (2 ♂ CNC), 6. vi. 1939, CNC 480959 (1 ♀, CNC), St. Williams, 42 ° 40 ' N, 80 ° 25 ' W, 23. v. 1956, J. R. Vockeroth, CNC 480919 (1 ♂ CNC), Thornhill, 30. v. 1964, J. R. Vockeroth, CNC 480881 - 480884, CNC 480904, CNC 480918, CNC 480955 - 480957 (6 ♂ 3 ♀, CNC), QC: Gatineau Park, Lac Philippe, 45 ° 36 ' N, 76 ° 0 ' W, 23. v. 2011, O. Lonsdale, CNC 481032 (1 ♀, CNC), Beech Grove, 15. v. 1961, J. F. McAlpine, CNC 480975 (1 ♀, CNC), Beechgrove, 45 ° 39 ' N, 76 ° 8 ' W, 5. vii. 1984, J. R. Vockeroth, CNC 480906, CNC 481010 (1 ♂ 1 ♀, CNC), Cap Rouge, 4. vii. 1953, R. Lambert, CNC 480974 (1 ♀, CNC), Wakefield, 9. vii. 1946, G. E. Shewell, CNC 480921, CNC 480976 (1 ♂ 1 ♀, CNC), SK: Hudson Bay, 15. ix. 1959, J. R. Vockeroth, CNC 481009 (1 ♀, CNC), Waskesiu Lake, 12. vii. 1939, A. R. Brooks, CNC 480923 (1 ♂ CNC), Yorkton, 15. ix. 1959, J. R. Vockeroth, CNC 480980 (1 ♀, CNC). USA. IL: 5 mi S Bath, 21. v. 1953, J. F. McAlpine, CNC 480890 (1 ♂ CNC), Champagne Co., 26. iv. 1926, J. Savage, CNC 480983 (1 ♀, CNC), Champagne, 3. x. 1956, J. F. McAlpine, CNC 480985 - 480987 (3 ♀, CNC), Champaigne, 2. x. 1956, J. F. McAlpine, CNC 480887 (1 ♂ CNC), nr. Forest City, Mason St. Forest, 21. v. 1953, J. F. McAlpine, CNC 480984, CNC 480888 (1 ♂ 1 ♀ CNC), KS: Lawrence, Nat. Hist. Res., 28. iv. 1956, J. G. Chillcott, CNC 480886 (1 ♂ CNC), LA: Alexandria, 11 mi SW, Palmetto swamp, 26. iii. 1960, J. G. Chillcott, CNC 480899 - 480903, CNC 480988 - 480990 (5 ♂ 3 ♀, CNC), MN: Crookston, river valley, 21. v. 1960, J. G. Chillcott, CNC 481016 (1 ♀, CNC), NC: Highlands, 1158 m, 23. viii. 1957, J. G. Chillcott, CNC 481006 (1 ♀, CNC), 27. viii. 1957, CNC 481007 (1 ♀, CNC), 10. v. 1957, J. R. Vockeroth, CNC 480940 (1 ♂ CNC), 16. vi. 1957, CNC 481001 (1 ♀, CNC), 5. v. 1957, CNC 480885, CNC 480938, CNC 480939, CNC 481002 - 481005 (3 ♂ 4 ♀, CNC), 6. v. 1957, CNC 480891 (1 ♂ CNC), 1158 m, leaf mine in submerged Carex in stream, 8. vii. 1957, CNC 480889 - 481000 (1 ♂ 2 ♀, CNC), PA: Union Co., Lewisburg, 26. viii. 1981, J. R. Vockeroth, CNC 480936, CNC 480937 (2 ♂ CNC), TN: East Ridge, 9. iv. 1952, G. S. Walley, CNC 480945 (1 ♂ CNC), 9. v. 1952, CNC 480997, CNC 480998 (2 ♀, CNC), TX: Big Bend N. P., Oak Springs, 1371 m, 1. v. 1959, J. F. McAlpine, CNC 480894 (1 ♂ CNC), Big Bend N. P., Oak Spring, 1. v. 1959, J. F. McAlpine, CNC 480895 (1 ♂ CNC), Brazos Co., College Station, 26. iii. 1966, D. M. Wood, CNC 480892, CNC 480893, CNC 480991 (2 ♂ 1 ♀, CNC), Kerrville, cedar, 1. iv. 1959, J. F. McAlpine, CNC 480913, CNC 480941 - 480944, CNC 480992, CNC 480993 (5 ♂ 2 ♀, CNC), VA: Giles Co., Mountain Lake, 1158 m, 26. v. 1962, J. G. Chillcott, CNC 480995 (1 ♀, CNC), Giles Co., Stony Creek, 609 m, 26. v. 1962, J. R. Vockeroth, CNC 480994 (1 ♀, CNC), Patrick Co., Fairy Stone St. Pk., 304 m, 30. v. 1962, J. R. Vockeroth, CNC 480896 - 480898, CNC 480996 (3 ♂ 1 ♀, CNC).	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
15E84A7B1BB12D76859F3723DB8A90DC.taxon	description	Figs 539, 540	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
15E84A7B1BB12D76859F3723DB8A90DC.taxon	description	Description. Wing length 2.2 mm (♂), ~ 2.9 mm (♀). Length of ultimate section of vein M 4 divided by penultimate section: 1.2. Eye height divided by gena height: 6.9 - 5.0. Frons slightly projecting anteriorly. Fronto-orbital plate ill-defined; ocellar triangle ill-defined, appearing to nearly reach lunule. Arista densely pubescent, narrow along length. First flagellomere small, circular. Lunule semi-circular, slightly higher than wide. Chaetotaxy: Three thin ori (as long as ors or ~ 3 / 4 length, with anterior setae often shortest); two stout ors. Ocellar and postocellar setae slightly longer than fronto-orbitals. Four dorsocentral setae, decreasing in length anteriorly; second dorsocentral apparently shifted anteriorly. Four scattered rows of acrostichal setulae reaching level of third dorsocentral. Colouration: Setae dark brown. Body subshiny with frons micropubescent, almost velvety. Frons brown with faint orange tint, becoming darker posteriorly to vertex and laterally along fronto-orbital plate past ors, paler along fronto-orbital plate anteriorly; dark brown spot encompassing ocellar tubercle; lunule contrastingly light yellow; back of head, clypeus and palpus dark brown; lunule and face light yellow; dorsum of gena, parafacial and narrow region around base of scape orange with brown tint. Thorax dark brown. Calypter margin yellow, hairs light brown. Wing veins dark brown, becoming yellowish orange to base. Halter yellow. Legs dark brown with apices of femora light yellow for length equalling width of femur; bases of tibiae narrowly light yellow. Abdomen dark brown. Genitalia: (Figs 539, 540) (from Boucher 2012: figs 83 - 86). Hypophallus appearing rod-like, apically split. Paraphallus simple, rod-like, small. Mesophallus subequal in length to distiphallus, narrow with slight basal swelling. Distiphallus split into one pair of narrow tubules that are divergent and curved upwards. Ejaculatory apodeme small with narrow blade.	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
15E84A7B1BB12D76859F3723DB8A90DC.taxon	distribution	Distribution. Canada: ON. USA: VA.	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
D0BF3A9A4B5EFF637DE5D13A1F06B316.taxon	description	Figs 102, 541 - 544	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
D0BF3A9A4B5EFF637DE5D13A1F06B316.taxon	description	Description (Fig. 102). Wing length 2.3 - 3.0 mm (♂), 2.6 - 3.4 mm (♀). Length of ultimate section of vein M 4 divided by penultimate section: 1.7 - 2.0. Eye height divided by gena height: 6.8 - 10.7. First flagellomere ovate, slightly longer than high. Arista pubescent. Lunule as high as wide, with dorsum strongly tapering, narrow; minutely pitted. Fronto-orbital plate 1 / 4 width of frons along most of length, but widening anteriorly to cover base of lunule laterally, sometimes reaching 1 / 3 width of frons. Cheek evident anteriorly on gena. Chaetotaxy: Two ori; two ors; slightly decreasing in length anteriorly, sometimes with additional ori on one side. Ocellar and postocellar setae subequal to fronto-orbitals. One strong row of ocellar setulae. One pair of prominent setae apically on each palpus. Four dorsocentral setae decreasing in length anteriorly, with fourth dorsocentral ~ 1 / 3 length of first dorsocentral; third dorsocentral sometimes also 1 / 3 length of first dorsocentral, sometimes duplicated (i. e., five dorsocentral setae). Approximately six rows of scattered acrostichal setulae. Acrostichal seta uncommonly present. Colouration: Setae dark brown. Head dark brown with gena paler brown (excluding ventral margin) and inner margin of ocellar triangle and fronto-orbital plate sometimes narrowly yellow; centre of frons outside ocellar triangle and fronto-orbital plate with dense blackish pits that are also present sparsely on gena centrally; buccal cavity inside clypeus with minute dark brown spicules. Remainder of body mostly dark brown with apex of fore femur light yellow for length not exceeding width of femur apex; apex of mid and hind femora with much narrower brownish to yellowish region; base of fore tibia sometimes narrowly light yellow to yellowish, and fore tibia and tarsus often paler brown, especially on tarsus and apex of tibia; wing veins light brown, becoming yellow to base; halter light yellow; calypter entirely white. Genitalia: (Figs 541 - 544) Epandrium with shallow supra-anal process. Surstylus directed inwards, fused to epandrium, with scattered short stout setae. Ventral process of subepandrial sclerite short, with broad stout base and narrow apical portion with outer wrinkles. Basiphallus fused to anteroventral margin of phallophorus, developed on left surface of shaft and narrowly along dorsomedial surface where it extends to become a narrow right dorsolateral bar; left distal margin continuing as narrow process flanking paraphallus. Hypophallus flat, broad, M-shaped, with thick basomedial ridge. Paraphallus only present on left side, elongate and directed laterally with margin irregular and base fused to mesophallus. Mesophallus tubular with base slightly swollen and distal section dorsoventrally compressed to narrow point of fusion with distiphallus; apically with bulging bilobed base that partially overlaps stem. Distiphallus tubules question mark-shaped, fused to mesophallus, as long as mesophallus, with narrow sclerotised band along inner-basal surface and band along outer surface that meets small, sclerotised apical cup.	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
D0BF3A9A4B5EFF637DE5D13A1F06B316.taxon	distribution	Distribution. Canada: AB, NT, ON, QC, SK, YT. USA: AK, " widespread in the northern 1 / 2 of the united states " (Frick 1959), NC, WY. Europe, Turkey, Uzbekistan, Russia, China, Japan, Pakistan (Papp and Cerny 2016).	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
D0BF3A9A4B5EFF637DE5D13A1F06B316.taxon	materials_examined	Additional material examined. Canada. AB: Banff, Johnston Canyon, 1432 m, 18. vii. 1962, K. C. Hermann, CNC 481039 (1 ♂, CNC), BC: Bowser, 5. vi. 1955, R. Coyles, CNC 481143 (1 ♀, CNC), Miracle Beach nr. Oyster River, 11. vi. 1955, J. R. McGillis, CNC 481145 (1 ♀, CNC), Oliver, 20. vi. 1953, J. R. McGillis, CNC 481144 (1 ♀, CNC), Osoyoos, 2 km S, 12. v. 1989, A. Borkent, CD 1034, CNC 481126 (1 ♀, CNC), Salmon Arm, 6 km E, 28. vii. 1989, A. Borkent, CD 1061, CNC 481125 (1 ♀, CNC), Summit Lake, Mi 392 Alaska Hwy., 1280 m, 21. vii. 1959, R. E. Leech, CNC 481147, CNC 481149, CNC 481150 (3 ♀, CNC), 31. vii. 1959, CNC 481148 (1 ♀, CNC), 1524 m, 6. vii. 1959, CNC 481146 (1 ♀, CNC), 1371 m, 2 - 4. vii. 1959, CNC 481153 (1 ♂, CNC), 1280 m, 31. vii. 1959, CNC 481086, CNC 481154 (2 ♂, CNC), NB: Kouchibouguac N. P., 23. v. 1977, Hanley and Cooper, Code- 5113 Q, CNC 481082 (1 ♂, CNC), NL: St. John's, Agric. Exp. Sta., 29. vii. 1967, J. F. McAlpine, CNC 481142 (1 ♀, CNC), NT: Salmita Mines, 64 ° 5 ' N, 111 ° 15 ' W, 4. vii. 1953, J. G. Chillcott, CNC 481122 (1 ♀, CNC), Yellowknife, 5. vi. 1953, J. G. Chillcott, CNC 481121 (1 ♀, CNC), NS: CBHNt. Pk., French L., slope fen, 24 - 30. vi. 1984, H. J. Teskey, PG 633770, CNC 481083 (1 ♂, CNC), Cranberry I., Lockeport, 9. viii. 1958, J. R. Vockeroth, CNC 481124 (1 ♀, CNC), ON: Belwood, 23. vi. 1968, D. H. Pengelly (1 ♀, DEBU), Ancaster, 26. vi. 1955, O. Peck, CNC 481114 (1 ♀, CNC), Atikokan, 4 mi E on Hwy. 11, 5. vii. 1978, H. J. Teskey, CNC 481111 (1 ♀, CNC), Chatham, 25. vii. 1928, Baird, 18333 A, CNC 481113 (1 ♀, CNC), Marmora, 2. vii. 1952, J. R. Vockeroth, CNC 481157 (1 ♂, CNC), Mer Bleue, 23. viii. 2014, O. Lonsdale, CNC 380695 (1 ♀, CNC), Milton, 7161 Appleby Line, 23 ° 28 ' 19 " N, 79 ° 54 ' 40 " W, 23 - 25. vii. 2015, O. Lonsdale, CNC 461884 (1 ♂, CNC), Ottawa, 695 Malibu Tr., 45 ° 22 ' 16.29 " N, 75 ° 42 ' 57 " W, 19. vii. 2019, O. Lonsdale, leaf mine Triticeae em. 21. vii. 2019, CNC 1482941 (1 ♀, CNC), Ottawa, 20 mi NW, 17. v. 1963, H. Rutz, CNC 481081 (1 ♂, CNC), Ottawa, C. E. Farm, Arboretum, 29. vii. 1962, W. G. Dore, ex leaf mine in Zizania aquatica L. CNC 481056 - 481110, CNC 481078, CNC 481042 (3 ♂ 4 ♀, CNC), Ottawa, Can. Exp. Farm, W. G. Dore, leaf mine in Zizania aquatica var. angustifolia em. 14. vii- 18. viii. 1962, CNC 481043 - 481055, CNC 481057 - 481075, CNC 481077 (13 ♂ 20 ♀, CNC), Ottawa, 11. ix. 1947, G. E. Shewell, CNC 481106 (1 ♀, CNC), 14. v. 1946, A. R. Brooks, CNC 481076 (1 ♂, CNC), Ottawa, marshy river shore, 2. ix. 1984, J. R. Vockeroth, CNC 481137 (1 ♀, CNC), 26. viii. 1984, CNC 481155 (1 ♂, CNC), Ottawa, damp, second growth Acer - Betula wood, 20. vi. 2003, J. R. Vockeroth, CNC 481102 (1 ♀, CNC), 9. viii. 1993, CNC 481103 (1 ♀, CNC), 4. vii. 2003, CNC 481104 (1 ♀, CNC), 5. vii. 1989, CNC 481139 (1 ♀, CNC), Ottawa, 5. vi. 1946, G. E. Shewell, CNC 481041 (1 ♂, CNC), 6. v. 1987, J. R. Vockeroth, CNC 481105 (1 ♀, CNC), iv-vii. 1956, J. R. Vockeroth, CNC 481138 (1 ♀, CNC), Picton, 10. vii. 1970, J. F. McAlpine, CNC 481140 (1 ♀, CNC), Port Severn, 3 mi N, Black spruce bog, 18. v. 1959, J. G. Chillcott, CNC 481141 (1 ♀, CNC), Simcoe, 26. vi. 1939, G. E. Shewell, CNC 481087 (1 ♂, CNC), 29. vi. 1939, CNC 481112 (1 ♀, CNC), Simcoe, 22. vi. 1939, G. E. Shewell, CNC 481079 (1 ♂, CNC), St. Lawrence Is. Nat. Park, McDonald Is., 12. vii. 1976, W. Reid, Code 4174 - N, CNC 481101 (1 ♀, CNC), 22. viii. 1976, Code 4492 - V, CNC 481100 (1 ♀, CNC), 5. viii. 1976, A. Carter, Code 4334 - T, CNC 481099 (1 ♀, CNC), Thornhill, 30. v. 1964, J. R. Vockeroth, CNC 481080 (1 ♂, CNC), Wilno, ex Pineus - infested white pine, 16. v. 1960, J. F. McAlpine, CNC 481156 (1 ♂, CNC), QC: Abbotsford, 2. vii. 1936, G. E. Shewell, CNC 481118 (1 ♀, CNC), 20. viii. 1936, CNC 481117 (1 ♀, CNC), Breckenridge, 14. vii. 1959, C. H. Mann, CNC 481133, CNC 481134 (2 ♀, CNC), Farnham, 7. vii. 1937, G. E. Shewell, CNC 481084, CNC 481119 (1 ♂ 1 ♀, CNC), Hemmingford, 8. vii. 1925, Hammond, leaf miner in Timothy, CNC 481085, CNC 481115 (1 ♂ 1 ♀, CNC), 9. vii. 1925, CNC 481116 (1 ♀, CNC), Kingsmere, 26. v. 1958, J. G. Chillcott, CNC 481136 (1 ♀, CNC), Old Chelsea, 16. v. 1958, J. R. Vockeroth, CNC 481135 (1 ♀, CNC), SK: 18 km S Maple Creek, by small clear stream, 49 ° 44 ' 31.93 " N, 109 ° 28 ' 40.77 " W, 10. vii. 2005, J. R. Vockeroth, yellow pan trap, CNC 287490 (1 ♂, CNC), Saskatoon, 9. v. 1949, A. R. Brooks, CNC 481123 (1 ♀, CNC), YT: North Fork Crossing, mi. 43, Peel Plt. Rd., 1066 m, 3. vii. 1962, P. J. Skitsko, CNC 481040 (1 ♂, CNC), Whitehorse, 24. viii. 1959, R. Madge, CNC 481120 (1 ♀, CNC). Germany. Mecklenburg-Vorpommern: Mecklenburg, Rostock 270, 10. viii. 1932, H. Buhr, Zea mays CNC 481098 (1 ♂, CNC). Norway. Heia, S. Grong NT, 8. vii. 1972, Phalaris erundinacea em. 23. vii. 1962, em. 23. vii. 1972, CNC 481093, CNC 481092 (2 ♀, CNC). Spain. Granada, 700 m, 10. vii. 1960, J. R. Vockeroth, CNC 481094 (1 ♀, CNC), Veleta, Sierra Nevada, N. slope, 2800 - 3000 m, 20. vii. 1960, J. R. Vockeroth, CNC 481095 (1 ♀, CNC), 2300 - 2550 m, 22. vii. 1960, J. R. Vockeroth, CNC 481097 (1 ♀, CNC), 2200 m, 30. vii. 1960, J. R. Vockeroth, CNC 481096 (1 ♀, CNC). USA. AK: Anchorage, 27. vi. 1959, R. S. Bigelow, CNC 481130 (1 ♀, CNC), 29. vi. 1959, CNC 481129 (1 ♀, CNC), Big Delta, 18. vi. 1951, W. R. M. Mason, CNC 481088 (1 ♂, CNC), Umiat, 11. vii. 1959, J. E. H. Martin, CNC 481089 (1 ♂, CNC), 12. vii. 1959, CNC 481091 (1 ♂, CNC), 13. vii. 1959, CNC 481131, CNC 481132 (2 ♀, CNC), 23. vii. 1959, R. Madge, CNC 481090 (1 ♂, CNC), CO: Boulder, 1828 m, 4. vi. 1961, B. H. Poole, CNC 481152 (1 ♀, CNC), DC: " Dist Columbia ", 11. vi. 1926, J. M. Aldrich (1 ♀, USNM), DE: New Castle Co., Port Penn, Port Penn Nature Trail, 7. ix. 2006, sweeping, K. Styler (1 ♀, UDCC), IA: Howard Co., Hayden Prairie State Preserve, 15. vii. 2015, em. 30. vii. 2015, C. S. Eiseman, ex? Phalaris, # CSE 1910, CNC 564724 (1 ♀, CNC), IN: LaFayette, 12. vii. 1915, CNC 481127 (1 ♀, CNC), MA: Franklin Co., Northfield, 263 Capt. Beers Plain Rd., 11. vii. 2012, em. by 27. vii. 2012, C. S. Eiseman, ex Phalaris arundinacea, CNC 358500 (1 ♀, CNC), 276 Old Wendell Rd., 2. viii. 2014, em. 11. viii. 2014, C. S. Eiseman, ex Phleum pratense, # CSE 1302, CNC 384827 - 384829 (1 ♂ 2 ♀, CNC), Plymouth Co., West Bridgewater, 41.991852, - 71.033550, 7. viii. 2013, em. 17. viii. 2013, C. S. Eiseman, ex Cinna arundinacea, # CSE 816, CNC 392642 (1 ♀, CNC), Bridgewater, 16. viii. 2013, em. 18 - 29. viii. 2013, C. S. Eiseman, ex Cinna arundinacea, # CSE 826, CNC 384722 - 384724 (2 ♂ 1 ♀, CNC), Worcester Co., Phillipston, along Burnshirt River (42.52149046, - 72.09219652), 4. vii. 2017, em. 15. vii. 2017, C. S. Eiseman, ex Calamagrostis canadensis, # CSE 3955, CNC 939733 (1 ♂, CNC), MD: Montg. Co., Clarksburg, Little Bennett Reg. Park, 21. ix. 1990, W. E. Steiner, M. J. and R. Molineaux (1 ♂, USNM), Prince Georges Co., Patuxent Wildlife Research Center, 14. vii. 1978, W. W. Wirth (1 ♂, USNM), Montgomery Co., Bethseda, 9. iv. 1968, G. Steyskal (1 ♂, USNM), Bethseda, 27. viii. 1981, G. C. Steyskal (1 ♂, USNM), Mg. Co., 4 mi SW of Ashton, 25. iv. 1987, G. F. and J. F. Hevel (2 ♀, USNM), 8. vi. 1981, Malaise trap (1 ♀, USNM), Mg. Co., Camp Springs, 15. ix. 1979, Malaise trap, G. Hevel (1 ♀, USNM), Montgomery Co., Forest Glen, 25. vi. 1967, W. W. Wirth (1 ♀, USNM), Cab. John Br, 14. vi. 1913, R. C. Shannon (1 ♀, USNM), NC: Macon Co., Highlands, Lake Ravenel, 15. vi. 1986, Malaise trap, W. W. Wirth (1 ♀, USNM), Cecil Co., Fair Hill, 771 Hill Top Rd, 22. vii. 2003, Malaise trap, M. Spellman (1 ♀, UDCC), Highlands, Whitesides Cove, 853 m, 11. viii. 1957, J. G. Chillcott, CNC 481151 (1 ♀, CNC), NY: Columbia Co., Ghent, Wolfe wild meadow, 17. vii. 2015, C. Vispo, Phalaris arundinacea, em. 3. viii. 2015, # CSE 2172, CNC 654350 (1 ♂, CNC), Payne Co., Mehan, 36.014339 ° N, - 96.996744 ° W, 2. vi. 2017, em. 21. vi. 2017, M. W. Palmer, ex Elymus canadensis, # CSE 3935, CNC 939907 (1 ♀, CNC), TN: East Ridge, 9. v. 1952, G. S. Walley, CNC 481128 (1 ♀, CNC), WV: Hardy Co., Lost R. St. Pk., 11. vii. 1974, G. C. Steyskal (1 ♂, USNM), Morgan Co., near Great Cacapon, 3. vii. 1983, G. F. and J. F. Hevel (1 ♀, USNM), WY: Battle L. Road, Sierra Madre Range, 2590 m, seepage area, 18. vii. 1961, J. G. Chillcott, CNC 481038 (1 ♂, CNC).	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
D0BF3A9A4B5EFF637DE5D13A1F06B316.taxon	materials_examined	Tentatively identified material. USA. MA: Nantucket Co., Nantucket, Squam Swamp, 27. vii. 2017, em. by 22. viii. 2017, C. S. Eiseman, ex Juncus tenuis, # CSE 4157, CNC 939650 (1 ♀, CNC).	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
1A8682ECB985D803242560552A3F999A.taxon	description	Description. Wing length 1.7 mm (♂), 1.7 - 2.1 mm (♀). Length of ultimate section of vein M 4 divided by penultimate section: 1.2 - 1.8. Eye height divided by gena height: 6.8 - 8.7. Chaetotaxy and colour as described for C. (P.) muscina, except as follows: anterior ori reduced to absent; dorsocentral setae strongly decreasing in length anteriorly with fourth dorsocentral barely evident; fronto-orbital plate always at least partially brown anterior to anterior ors; cheek sometimes dark brown; apex of fore coxa yellow; basal 1 / 5 - 1 / 4 of femora brown with pigment on fore femur more reduced; tibiae and tarsi light brown with fore leg palest, and apical segments on mid and hind tarsi darker with apical segment sometimes brown. Paratypes with only extreme base of femora brown and notopleuron with distinct, large irregular light yellow spot. Genitalia: Not examined. Illustrated in Zlobin (1997: figs 7 - 9).	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
1A8682ECB985D803242560552A3F999A.taxon	distribution	Distribution. Canada: ON. USA: MD *, NC *, PA, TX, VA *, WV *.	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
1A8682ECB985D803242560552A3F999A.taxon	materials_examined	Additional material examined. USA. MD: P. G. Co., Camp Springs, 15. vii. 1979, Malaise trap, G. F. Hevel (1 ♀, USNM), NC: Highlands, 16. viii. 1957, W. R. Richards, CNC 481161 (1 ♀, CNC), VA: Shenandoah, Big Meadows, 2. vii. 1939, A. L. Melander (1 ♂, USNM), WV: Hardy Co., Lost River St. Park, 10. vii. 1977, Malaise trap, W. W. Wirth (1 ♀, USNM).	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
315BB2B184EE33A3D20624ADF1F74C85.taxon	description	Figs 101, 545 - 549	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
315BB2B184EE33A3D20624ADF1F74C85.taxon	description	Description (Fig. 101). Wing length 1.7 - 2.5 mm (♂), 1.4 - 2.3 mm (♀). Length of ultimate section of vein M 4 divided by penultimate section: 1.2 - 1.8. Eye height divided by gena height: 5.4 - 7.3. First flagellomere short, ovate. Arista pubescent. Lunule appearing as high or higher than wide when fronto-orbital plates cover base laterally; surface minutely pitted. Fronto-orbital plate ~ 1 / 4 frons width, smooth, well-sclerotised, contrasting soft, often buckled medial section of frons. Chaetotaxy: Two ori (sometimes additional ori present on one side); two ors; slightly decreasing in length anteriorly overall, even if one seta sometimes slightly longer or shorter; sometimes with only anterior ori shorter. One sparse, irregular row of orbital setulae. Four dorsocentral setae, decreasing in length anteriorly with fourth dorsocentral more abruptly shortened, being ~ 1 / 3 - 1 / 2 length of first dorsocentral. Approximately six irregular rows of acrostichal setulae. Acrostichal seta absent. One pair of prominent setae apically on each palpus. Colouration: Setae dark brown. Antenna brown with first flagellomere dark brown and pedicel yellowish, but sometimes entirely dark brown; fronto-orbital plate light yellow to yellow, with variable light brown to brown pigment that is darker anteriorly; fronto-orbital plate sometimes appearing entirely yellow, but minute brownish spots always present at base of setae and setulae medially and anteriorly; frons with minute dark brown markings between fronto-orbital plates that are denser and darker anteriorly; ocellar spot dark brown, slightly larger than tubercle, enclosed within larger, smooth yellow triangle; back of head, posterolateral corner of frons to base of inner vertical, clypeus and mentum dark brown; gena yellow to brown with cheek light brown, ventral margin dark brown, and minute, sparsely arranged medial pits below cheek dark brown; parafacial dirty yellow; lunule, face and palpus brown to dark brown; buccal cavity within clypeus covered with dense dark brown spicules. Remainder of body dark brown, subshiny, with postpronotum and notopleuron slightly paler; distal 1 / 3 - 1 / 2 of femora yellow, fore femur always more extensively yellow with yellow region uncommonly extending below midpoint; tibiae and tarsi slightly paler with fore leg palest; some specimens from the north uncommonly darker with fore femur only yellow on distal 1 / 3 and mid and hind femora yellow for length slightly exceeding width of femur apex; abdomen sometimes yellowish laterally on tergites 1 - 3. Wing veins brown to light brown, whitish to yellow at base. Halter light yellow. Calypter margin light brown to whitish (uncommonly darker), and hairs brown. Genitalia: (Figs 545 - 549) Epandrium with or without supra-anal process; shorter dorsally, fused to surstylus. Surstylus directed inwards with scattered stout, short setae. Ventral process of subepandrial sclerite with broad, stout base and highly reduced, rounded distal section. Phallophorus fused ventrally to basiphallus. Basiphallus sclerotised along left surface of shaft, and partially along venter; produced anterodorsally as short, flat process. Hypophallus divided into one pair of broad, flat, distally narrowed plates. Mesophallus and distiphallus with very distinct torsion to right and slight asymmetry. Mesophallus with slightly widened, uneven base; length of stem ~ 2 x width; apical chamber globular. Distiphallus tubules relatively short, strongly twisted to right, dark and with narrow, slightly differentiated cups. Sperm pump with faint basal sclerotised patch; ejaculatory apodeme with short base expanding into narrow base of blade, which is distally expanded with margin dark.	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
315BB2B184EE33A3D20624ADF1F74C85.taxon	distribution	Distribution. Canada: AB, BC, MB, NB *, NL, NS, NT, NU, ON, QC, SK *, YT. USA: AK, CA, CT *, DC, DE *, GA, ID, IL, IN, MA, MD, MI, MN, NC, NH *, NY, OR, PA, TN, VA *, WA, WV *. Europe, Kyrgyzstan, Russia, South Korea (Cerny et al. 2020).	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
315BB2B184EE33A3D20624ADF1F74C85.taxon	materials_examined	Additional material examined. 363 ♂ 299 ♀ (CNC, UDCC, USNM). New provincial / state records: Canada. NB: Chamcook, 16. viii. 1957, G. E. Shewell, CNC 481036 (1 ♀, CNC), Kouchibouguac N. P., 21. v. 1977, B. E. Cooper, Code- 5107 K, CNC 481033 (1 ♂, CNC), St. Andrews, 8. viii. 1957, G. E. Shewell, CNC 481035 (1 ♀, CNC), SK: Saskatoon, 9. ix. 1959, J. R. Vockeroth, CNC 481034 (1 ♀, CNC). USA. CT: Redding, 8. vi. 1928, A. L. Melander (1 ♀, USNM), DE: Rehoboth, 18. vii. 1976, Malaise trap, W. W. Wirth (3 ♀, USNM), New Castle Co., Newark, White Clay Creek, 11. vi. 2001, sweeping, C. R. Bartlett (1 ♀, UDCC), NH: Mt. Madison, Dolly Copp Cmpgrd., 8 - 9. vii. 1986, J. M. and S. H. Cumming, CNC 481037 (1 ♀, CNC), VA: Arlington, vi. 1938, J. R. Malloch (2 ♀, USNM), Falls Church, Holmes Run, 17. vii. 1960, light trap, W. W. Wirth (1 ♀, USNM), 1. vii. 1961 (1 ♀, USNM), 27. vii. 1968 (1 ♂, USNM), Grayson Co., 15 km S Galax at Chestnut Creek, 28. vi. 1986, W. E. Steiner (1 ♂, USNM), Giles Co., Mountain Lake, 7. ix. 1976, G. C. Steyskal (2 ♂, USNM), WV: Great Cacapon to Largent, 2 - 3. vii. 1977, Malaise trap, W. W. Wirth (1 ♀, USNM), Morgan Co., near Great Cacapon, 3. vii. 1983, G. F. and J. F. Hevel (1 ♂, USNM).	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
4B4CC527E948C8DBF2AB46E81B210B5B.taxon	description	Figs 550 - 554	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
4B4CC527E948C8DBF2AB46E81B210B5B.taxon	description	Description. Wing length 2.1 - 2.5 mm (♂), 2.4 - 3.2 mm (♀). Length of ultimate section of vein M 4 divided by penultimate section: 1.9 - 2.2 (2.4 - 3.2 in European specimens). Eye height divided by gena height: 6.0 - 8.3. Arista short pubescent. First flagellomere ovate, length equal to or slightly greater than height. Ring around eye narrow but strong. Lunule narrow, up to 1 / 2 length of frons, minutely pitted. Frons slightly wider compared to other Poemyza, resulting in fronto-orbital plate being less than 1 / 4 width of frons. Anterior region of fronto-orbital plate slightly expanded, covering lateral base of lunule; inner margin clearly delimited, but not as strongly sclerotised or raised, as in other Poemyza. Chaetotaxy: Two ori; two ors; relatively stout. Ocellar and postocellar setae slightly shorter and thinner than fronto-orbitals. Orbital setulae in single row. One pair of prominent setae apically on each palpus. Four dorsocentral setae, decreasing in length anteriorly with fourth seta 1 / 3 - 2 / 5 length first seta. Acrostichal setulae in six scattered to irregular rows. Acrostichal seta relatively strong to slightly developed, not much larger than surrounding setulae. Colouration: Setae dark brown. Head dark brown, with back of head, ventral margin of gena, face, clypeus and palpus darker; ocellar spot darker, relatively small; centre of frons with dense, deep minute pits; gena often slightly paler; space between clypeus with minute dark brown spicules. Body dark brown, subshiny, with moderate greyish brown pruinosity; postpronotum and notopleuron slightly paler; apex of fore femur and base of fore tibia light yellow for length equal to width of femur apex; apex of mid and hind femora faintly and narrowly yellowish, or entirely dark brown. Wing veins brown, only yellow at very base. Halter light yellow. Calypter margin and hairs dark brown. Variation: Delmarva specimens with highly reduced pruinosity on body, appearing shinier; acrostichal setae absent. English specimens with apex of mid femur nearly as pale as fore femur. Genitalia: (Figs 550 - 554) Epandrium with supra-anal process; anteroventral margin weakly sclerotised; fused to surstylus. Surstylus small, directed inwards, with short thin setae. Ventral process of subepandrial sclerite with broad, stout base and short apical section with irregular outer margin. Basiphallus ventrally fused to phallophorus; sclerotised along ventral and left lateral surfaces with anterodorsal process extending along right distal surface. Hypophallus broad and flat, becoming thinner and paler apically; M-shaped with slight basomedial carina and other lesser striations. Left paraphallus present, directed laterally, meeting base of mesophallus. Mesophallus stem swollen subbasally in ventral view, much more so in lateral view, and dorsoventally compressed to narrow distal point of fusion with apical chamber; apical chamber with broad, bilobed base that broadly overlaps stem. Distiphallus tubules elongate, question mark-shaped, clear, with narrow sclerotised band on inner surface on basal 1 / 2, and complete narrow outer band reaching small apical cup. Ejaculatory apodeme with small, narrow blade.	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
4B4CC527E948C8DBF2AB46E81B210B5B.taxon	distribution	Distribution. Canada: BC *, NL, ON, QC. USA: AK, DE *, MD *, NY, TN *, WV *. Europe. Russia.	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
4B4CC527E948C8DBF2AB46E81B210B5B.taxon	materials_examined	Additional material examined. Austria. Oberoesterreich: Linz, 16. vii. 1962, Hering, mine an Dactylis glomerata Nr. 6804, CNC 481163 (1 ♀, CNC). Canada. BC: Terrace, 50 mi SW, around and on wet cliff face, 9. vii. 1960, J. G. Chillcott, CNC 481213 (1 ♀, CNC), NL: St. John's, Agric. Exp. Sta., 12. vii. 1967, J. F. McAlpine, Malaise trap, CNC 481218, CNC 481219 (2 ♀, CNC), 9. viii. 1967, CNC 481216, CNC 481217 (2 ♀, CNC), St. John's, Agric. Exp. Sta., on Ranunculus, 18. vii. 1967, J. F. McAlpine, CNC 481214, CNC 481215 (2 ♀, CNC), Stevenville, 19. vi. 1979, B. V. Peterson, CNC 481220 (1 ♀, CNC), ON: Dundas, 27. v. 1955, O. Peck, CNC 481209 (1 ♀, CNC), Normandale, 29. v. 1956, J. R. Lonsway, CNC 481185 (1 ♂, CNC), Point Pelee, 7. vii. 1980, D. L. Krailo, CNC 481210 (1 ♀, CNC), Pt. Pelee, 7. vii. 1980, S. Beierl, CNC 481211 (1 ♀, CNC), Simcoe, 2. vi. 1939, G. E. Shewell, CNC 481167 (1 ♂, CNC), QC: Fort Chimo, on Solidago, 2. vii. 1954, J. G. McAlpine, CNC 481208 (1 ♀, CNC). USA. AK: Anchorage, 15. vi. 1953, R. S. Bigelow, CNC 481189, CNC 481190 (2 ♀, CNC), 18. vii. 1953, CNC 481171 (1 ♂, CNC), 26. vi. 1951, CNC 481168 (1 ♂, CNC), 27. vi. 1951, CNC 481186, CNC 481188 (2 ♀, CNC), 27. vi. 1953, CNC 481169 (1 ♂, CNC), 29. vi. 1951, CNC 481187 (1 ♀, CNC), 29. vi. 1953, CNC 481170 (1 ♂, CNC), Chowiet Island (Aleutian), 56 ° 2 ' 5.82 " N, 156 ° 44 ' 25.14 " W, prairie meadow, 10. vii. 2009, Goulet and Boudreault, sweeping, CNC 340749 (1 ♂, CNC), Cold Bay, on tundra, 21. viii. 1952, W. R. Mason, 163 ° W, CNC 481173 (1 ♂, CNC), King Salmon, Naknek, 11. vii. 1952, W. R. Mason, CNC 481198 (1 ♀, CNC), 6. vii. 1952, CNC 481184, CNC 481199 (1 ♂ 1 ♀, CNC), 4. vii. 1952, CNC 481200 (1 ♀, CNC), 3. viii. 1952, CNC 481182, CNC 481183 (2 ♂, CNC), 13. vii. 1952, J. B. Hartley, CNC 481205 (1 ♀, CNC), 13. viii. 1952, CNC 481207 (1 ♀, CNC), 3. vii. 1952, CNC 481201 - 481203 (3 ♀, CNC), 4. vii. 1952, CNC 481204 (1 ♀, CNC), 4. viii. 1952, CNC 481181 (1 ♂, CNC), 5. viii. 1952, CNC 481180 (1 ♂, CNC), 8. viii. 1952, CNC 481206 (1 ♀, CNC), Naknek, on tundra, 2. viii. 1952, W. R. Mason, CNC 481179 (1 ♂, CNC), 21. vii. 1952, CNC 481174 (1 ♂, CNC), CNC 481172 - 481196 (1 ♂ 4 ♀, CNC), 8. viii. 1952, CNC 481178 (1 ♂, CNC), 9. viii. 1952, CNC 481176 (1 ♂, CNC), 3. vii. 1952, J. B. Hartley, CNC 481175, CNC 481177, CNC 481197 (2 ♂ 1 ♀, CNC), Unalakleet, 18. vii. 1961, R. Madge, CNC 481191 (1 ♀, CNC), 24. vii. 1961, CNC 481192 (1 ♀, CNC), DE: Rehoboth, 18. vii. 1976, Malaise trap, W. W. Wirth (1 ♀, USNM), MD: Colesville, 28. v. 1977, W. W. Wirth (1 ♀, USNM), 4. vi. 1977 (1 ♀, USNM), 14. vi. 1977 (1 ♀, USNM), TN: Gr. Sm. Mt. Nat. Park, Indian Gap, 1554 m, 24. vii. 1957, J. G. Chillcott, CNC 481212 (1 ♀, CNC), WV: Morgan Co., near Great Cacapon, 3. vii. 1983, G. F. and G. F. Hevel (1 ♀, USNM). England. Chippenham Fen., Cambs., 5. vii. 1958, [K. A. Spencer], Brachypodium Syl. em. 19. vii. 1958, CNC 481166 (1 ♀, CNC), Hering, mine an Brachypod. silvaticum em. 27. vii. 1958, 6315, CNC 481162 (1 ♂, CNC), Marlow, Buck., 11. vii. 1954, [K. A. Spencer], Gramineae [em.] 26. vii. 1954, CNC 481164 (2 ♂ / ♀, CNC), Scratch Wood, Mddx., [K. A. Spencer], em. 20. vii. 1956, CNC 481165 (1 ♀, CNC).	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
D657E093BFEC0E5F06F1119EA81BC9CD.taxon	description	Figs 555 - 558	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
D657E093BFEC0E5F06F1119EA81BC9CD.taxon	description	Description. Wing length 1.8 - 2.2 mm (♂). Female unknown. Length of ultimate section of vein M 4 divided by penultimate section: 1.5 - 1.7. Eye height divided by gena height: 7.1 - 8.9. Arista short pubescent. First flagellomere small, ovate, slightly longer than high. Fronto-orbital plate 1 / 4 frons width. Lunule minutely pitted, appearing as high as wide or slightly higher if lateral base concealed by fronto-orbital plate. Chaetotaxy: Two ori; two ors. Orbital setulae in one row. Ocellar and postocellar setae subequal to fronto-orbitals. Four dorsocentral setae, strongly decreasing in length anteriorly, with fourth seta almost setula-like and sometimes apparently absent. One pair of prominent setae apically on each palpus. Colouration: Setae dark brown. Head mostly brown to dark brown; if head paler, first flagellomere, anterior region of frons, face, back of head, ventral margin of gena, clypeus and palpus always darker, fronto-orbital plate, ocellar triangle, gena and pedicel light brown, and ocellar tubercle brown; if darker than surrounding frons, pigment on ocellar tubercle ill-defined and often faded (not dark and sharply delimited); soft central region of frons heavily pitted with dark brown to orange spots, always dark brown anteriorly, brownish yellow to dark brown posteriorly; pedicel sometimes yellowish apically. Body dark brown with postpronotum and notopleuron slightly paler and apices of femora light yellow for length equal to width of femur apex; wing veins light brown to yellowish, light yellow to base; halter light yellow; calypter white. Genitalia: (Figs 555 - 558) Epandrium with small supra-anal process; fused to surstylus. Anterior portion of surstylus small, rounded, directed inwards but with longer anteroventral section; with small setae. Ventral process of subepandrial sclerites with arm as long as stout base, smooth, and with shallow outer subapical point. Basiphallus fused to venter of phallophorus; sclerotised along ventral surface of shaft, with broad, bifid apical section flanking base of mesophallus; left distal margin extended as long process. Hypophallus weakly sclerotised along surface of membranous fold and with right lateral carina; ventrally continuous with basiphallus. Paraphallus absent. Mesophallus fused to distiphallus, stem ~ 6 x longer than wide; apical chamber small, bilobate, slightly overlapping stem. Distiphallus tubule lightly sclerotised, gradually widening to broad apical cup with inner marginal row of bumps; with broad, shallow medial curve that ends very close to base.	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
D657E093BFEC0E5F06F1119EA81BC9CD.taxon	distribution	Distribution. USA: CA, CO, MD *, VA *, WV *.	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
D657E093BFEC0E5F06F1119EA81BC9CD.taxon	materials_examined	Additional material examined. USA. CO: Boulder, Flagstaff Cn., 1767 m, on side of stream, 10. vi. 1961, C. H. Mann, CNC 481158 (1 ♂, CNC), MD: Seaside, 23. vi. 1931, A. L. Melander (1 ♂, USNM), VA: Chain Bridge, 23. iv. 1922, J. R. Malloch (1 ♂, USNM), WV: Bluefield, 17. vi. 1970, G. Steyskal (2 ♂, USNM).	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
CB8706B104E91302C80E446B0BB4CD02.taxon	description	Figs 559 - 563	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
CB8706B104E91302C80E446B0BB4CD02.taxon	description	Description. Wing length 2.3 - 2.8 mm (♂), 2.5 - 3.0 mm (♀). Length of ultimate section of vein M 4 divided by penultimate section: 0.9 - 1.2. Eye height divided by gena height: 4.3 - 5.0. Lunule higher than wide, smooth with broad, shallow pits, relatively well-sclerotised and sharply bent medially to follow curve of frons; with comparatively smooth, level interface with soft portion of frons. Chaetotaxy: Two ori; two ors; length equal or decreasing anteriorly, or only with posterior seta long; often relatively short and straight, at least for ori, with length not exceeding width of soft portion of frons. One pair of prominent setae apically on each palpus. Colouration: Setae dark brown. Frons light yellow to brownish with minute brown spots at base of fronto-orbitals and setulae; soft central region of frons with rows of dark pits that predominate towards lunule; back of head, first flagellomere, ocellar spot (larger than tubercle), clypeus, ventral margin of gena and palpus dark brown; postocellars on yellowish region; face mottled yellow, light brown and brown; pedicel, scape and ring around eye excluding venter of cheek brown; lunule brownish around base of antennae; lateral region of fronto-orbital plate narrowly brownish to orange with margin along eye sometimes brown, fading inwards to base of fronto-orbitals; central pitted region of gena light brown. Body dark brown with moderate greyish brown pruinosity; postpronotum light yellow with large anteromedial dark brown spot; notopleuron light yellow with small, lateral brown stripe; apex of fore femur light yellow for distance slightly more or less than width of femur apex; base of fore tibia light yellow; dorsal transverse carina on epandrium paler brown or yellowish. Halter light yellow. Calypter white. Genitalia: (Figs 559 - 563) Epandrium very flattened dorsally, further emphasizing large, unusual supra-anal process, which is thick, flat, shelf-like and nearly as wide as epandrium. Surstylus rounded, small, and with additional broad, flat inwardly (and slightly ventrally) directed lobe; cluster of tubercle-like setae on surstylus proper and inner lobe. Basiphallus ventrally fused to phallophorus; sclerotised along left lateral surface, dividing into one pair of bands on distal 1 / 2, one of which extends to left distal margin and again bifurcates, and one of which wraps around dorsum to right distal margin. Hypophallus with one pair of long plate-like sclerites that fade distally and are irregularly fused via ridges medially. Paraphalli directed laterally at base, then sharply angled towards venter at midpoint; right sclerite reduced. Mesophallus stem swollen at base (bulge exaggerated in lateral view) and distal 2 / 3 dorsoventrally compressed; with basal process in front of duct insertion and with small shallow bump ventromedially; apical chamber swollen, bilobed, mostly produced below stem. Distiphallus tubules S-shaped with basal curve smaller and not straightened at origin (apex more strongly curved in figure provided in Nowakowski 1973); basal 1 / 2 well-sclerotised, distal 1 / 2 mostly clear with small apical cup and single lateral band sclerotised. Ejaculatory apodeme well-developed with darker base and slightly darker margin; sperm pump with venter sclerotised.	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
CB8706B104E91302C80E446B0BB4CD02.taxon	distribution	Distribution. Canada: AB, BC *, MB, NB, NS *, NT, ON, QC, SK, YT. USA: " many of the States in the northern 1 / 2 of the United States "; published state occurrences include AK, CA, CO, IN, KS, MA, ND, NH, NV, OH, PA, VT. Europe, Russia, China, Japan (Papp and Cerny 2016).	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
CB8706B104E91302C80E446B0BB4CD02.taxon	materials_examined	Additional material examined. Canada. AB: Banff Natl. Park, Eisenhower Junction, 1432 m, 6. vi. 1955, J. R. McGillis, CNC 481240 (1 ♂, CNC), Banff, 1357 m, along roadside, 26. v. 1960, B. S. Heming, CNC 481295 (1 ♀, CNC), Black Foot Coulee, 9. viii. 1940, A. R. Brooks, CNC 481278, CNC 481288 (2 ♀, CNC), Black Foot Hills, 9. viii. 1940, A. R. Brooks, CNC 481226 - 481233, CNC 481279 - 481287 (8 ♂ 9 ♀, CNC), Elkwater L., swept from range grass, 2. vii. 1956, O. Peck, CNC 481292 (1 ♀, CNC), Lethbridge, Oldman River, 22. vi. 1956, O. Peck, CNC 481296 (1 ♀, CNC), BC: Atlin, 24. vi. 1955, B. A. Gibbard, CNC 481251 (1 ♂, CNC), Oliver, 18. viii. 1953, J. R. McGillis, CNC 481250 (1 ♂, CNC), Osoyoos, 49 ° 1 ' 40.68 " N, 119 ° 27 ' 8.10 " W, alfalfa, 26. v. 2005, Goulet and Boudreault, Site 8, CNC 481269 (1 ♀, CNC), Summit Lake, mi 392 Alaska Hwy, 1371 m, 8. vii. 1959, R. E. Leech, CNC 481297 (1 ♀, CNC), MB: 1 km NW of Winnipegosis, Hwy 20, 51 ° 39 ' 3.96 " N, 99 ° 56 ' 42.96 " W, prairie habitat, 16. vi. 2007, Goulet and Boudreault, sweeping, CNC 481270 (1 ♀, CNC), 5 mi N Minnedosa, 8. vii. 1958, R. L. Hurley, CNC 481293, CNC 481294 (2 ♀, CNC), Aweme, 18. vii. 1916, N. Criddle, CNC 481225 (1 ♂, CNC), 4. vii. 1917, CNC 481289, CNC 481290 (2 ♀, CNC), 3. vii. 1922, H. A. Robertson, CNC 481291 (1 ♀, CNC), Shilo, 5 mi SW, 13. vii. 1958, J. G. Chillcott, CNC 481234 (1 ♂, CNC), floodplain comminuty nr. tamarack bog, open grassy marsh, 2. viii. 1958, CNC 481235, CNC 481274, CNC 481276, CNC 481277, CNC 481275 (1 ♂ 4 ♀, CNC), Treesbank, 23. vii. 1915, N. Criddle, CNC 481236 (1 ♂, CNC), 6. viii. 1915, N. Criddle, Teste Aldrich, CNC 481237 - 481239, CNC 481271, CNC 481272 (3 ♂ 2 ♀, CNC), Whitewater L., 4 mi N Whitewater, swept from Hordeum jubatum, 14. viii. 1958, J. G. Chillcott, CNC 481273 (1 ♀, CNC), NB: Richibucto, on tidal flat, 12. vii. 1977, J. R. Vockeroth, CNC 481267 (1 ♂, CNC), NT: Yellowknife, 64 ° 5 ' 0 " S, 111 ° 15 ' 0 " W, 5. vi. 1953, J. G. Chillcott, CNC _ Diptera 59172, CNC 481252 (2 ♂, CNC), NS: S. Harbor, 11. vii. 1984, H. J. Teskey, PG 961944, CNC 481268 (1 ♂, CNC), ON: Atikokan, 4 mi E of Hwy. 11, 5. vii. 1978, H. J. Teskey, CNC 481257 (1 ♂, CNC), Grand Bend, 19. vii. 1939, G. E. Shewell, CNC 481259 (1 ♂, CNC), One Sided Lake, 29. vi. 1960, Kelton and Whitney, CNC 481310 (1 ♀, CNC), Ottawa, 24. v. 1946, A. Brooks, CNC 481311 (1 ♀, CNC), Penetang, 1. viii. 1955, J. G. Chillcott, CNC 481258 (1 ♂, CNC), Simcoe, 15. vi. 1939, G. E. Shewell, CNC 481260 - 481263 (4 ♂, CNC), Stratford, 5. vii. 1916, CNC 481256 (1 ♂, CNC), Waubamick, vi. 1915, H. S. Parish (1 ♂, USNM), QC: Breckenridge, 28. vi. 1959, C. H. Mann, CNC 481266 (1 ♂, CNC), Ile de Montreal, 5. viii. 1906, Beaulieu, CNC 481264, CNC 481313 (1 ♂ 1 ♀, CNC), Mi. 139 Rte. 58, La Verendrye Prov. Pk., 28. vi. 1965, D. M. Wood, CNC 481312 (1 ♀, CNC), Rupert House, 29. vii. 1949, E. J. LeRoux, CNC 481265 (1 ♂, CNC), SK: 11 km S Empress, AB, riverine cottonwood, maple, 12 - 19. viii. 1986, J. Acorn, Malaise trap, CNC 481298, CNC 481299 (2 ♀, CNC), Buchanan, 6. viii. 1925, K. M. King, CNC 481303 (1 ♀, CNC), Great Deer, 8. ix. 1950, J. R. Vockeroth, CNC 481300 (1 ♀, CNC), Indian Head, 6. ix. 1920, S. Stewart, CNC 481242 (1 ♂, CNC), Pheasant City, 13. vii. 1937, A. R. Brooks, CNC 481241 (1 ♂, CNC), Saskatoon, 16. viii. 1939, A. R. Brooks, CNC 481243, CNC 481302 (1 ♂ 1 ♀, CNC), 6. viii. 1939, CNC 481301 (1 ♀, CNC), Saskatoon, 22. vii. 1933, K. M. King, 16447 - 1129 B, CNC 481305 (1 ♀, CNC), 22. viii. 1927, 16446 - 126 BG, CNC 481248 (1 ♂, CNC), 25. viii. 1923, 16410 - 3 N 9 B, CNC 481244, CNC 481245 (2 ♂, CNC), 26. vi. 1930, 16424 - 330 B, D 360, CNC 481246 (1 ♂, CNC), 27. vii. 1923, 16410 - 4 N 10 B, CNC 481304 (1 ♀, CNC), 4. vii. 1930, 16448 - 1227 AN, CNC 481306 (1 ♀, CNC), 6. viii. 1931, 164464 - 832 B, CNC 481247 (1 ♂, CNC), 6. viii. 1935, 164464 - 832 B, CNC 481249 (1 ♂, CNC), YT: Kusawa Lake Road, 60 ° 42 ' 12.66 " N, 136 ° 4 ' 18.72 " W, 699 m, 6. vii. 2006, Goulet and Boudreault, sweeping, CNC 481221 - 481224 (4 ♂, CNC), Rampart House, 67 ° 25 ' 26.56 " N, 140 ° 59 ' 0.68 " W, 2. vi. 1951, C. C. Loan, CNC _ Diptera 59173 (1 ♀, CNC), Whitehorse, 23. viii. 1959, R. Madge, CNC 481253 (1 ♂, CNC). Denmark. Gudhjem, Bornholm, F. Budman, mine an Ammophila arenaria coll. Hypon., M. Hering, 3329, CNC 481315 (1 ♂, CNC), Maribo, Bota [?], Soenderup, 3. viii. 1932, mine an Psamma arenaria coll. Hypon., M. Hering, CNC 481314 (1 ♀, CNC). USA. AK: Fairbanks, 13. vi. 1952, J. B. Hartley, CNC 481307 (1 ♀, CNC), CO: Boulder Co., Corona Pass, 3230 m, 6. vii. 1961, J. G. Chillcott, CNC 481309 (1 ♀, CNC), Mt. Evans, 3566 m, timberline, 22. vii. 1961, W. R. M. Mason, CNC 481254 (1 ♂, CNC), Niwot Ridge, nr. Ward, 3505 m, on tundra, 4. vii. 1961, C. H. Mann, CNC 481308 (1 ♀, CNC), C. N. Ainslie, reared from Agromyza in Agrobyron Webster No. 13784, Wimbeldon NBJ 16915, CNC 481255 (1 ♂, CNC), Crook, 15. vi. 1940, A. L. Melander (1 ♂, USNM), NH: Mt. Wash., Alpine Garden, 2. vii. 1956, 5900 ', A. L. Melander (1 ♂, USNM).	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
474527D67CB44BA0D95B1BE68593EEA5.taxon	description	Figs 564 - 566	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
474527D67CB44BA0D95B1BE68593EEA5.taxon	description	Description. Wing length 2.1 mm (♂), 2.3 - 2.4 mm (♀). Length of ultimate section of vein M 4 divided by penultimate section: 1.1 - 1.6. Eye height divided by gena height: 3.0 - 4.1. First flagellomere slightly longer than high, dorsal margin with very shallow angle between apex and middle. Arista short pubescent. Lunule angled posteriorly near base, visible portion (lateral base concealed by fronto-orbital plate) not much higher than wide, small, separated from ocellar triangle by its own height. Fronto-orbital plate and parafacial prominent, appearing thick when viewed laterally, continuing under eye as strong cheek; fronto-orbital plate, parafacial and anterior region of frons slightly bulging outwards so that anterior surface of head not appearing flat when viewed from above; fronto-orbital plate well-sclerotised, appearing continuous with ocellar triangle. Gena comparatively broad and rounded, not as projecting posteriorly. Chaetotaxy: Two ori (sometimes three ori on one side); two ors; slightly decreasing in length anteriorly. Ocellar and postocellar setae subequal to fronto-orbitals. One row of strong orbital setulae. One pair of prominent setae apically on each palpus. Four dorsocentral setae, strongly decreasing in length anteriorly, with fourth seta barely larger than surrounding setulae. Four rows of acrostichal setulae. Acrostical seta absent; one female with duplicated dorsocentral in one acrostichal row. Colouration: Setae dark brown with paler brown shine. Head dark brown; slightly darker or paler centrally on frons, which is covered with blackish pits; lunule and gena slightly paler; ocellar spot, back of head, clypeus, face, and venter of gena darker; ocellar triangle yellowish around dark ocellar spot; buccal cavity within arms of clypeus with dense orange to brown spicules. Remainder of body dark brown with notopleuron slightly paler and fore femur yellow for length less than apical width of femur; mid femur sometimes with slight yellowish tint apically. Wing veins light brown, becoming yellower towards base and often whitish posteriorly. Halter light yellow. Calypter margin and hairs light brown. Genitalia: (Figs 564 - 566) Epandrium without supra-anal process. Surstylus small, rounded, directed inwards, with small setae. Ventral process of subepandrial sclerites with arm length equal to base width; smooth, with very small subapical point on outer surface. Basiphallus fused to ventroapical margin of phallophorus; sclerotised along left lateral and ventral surfaces, with nearly separate dorsal to right dorsolateral plate on distal 2 / 3. Hypophallus with one pair of flat, apically narrowing and desclerotised plates. Only left paraphallus evident as clear lobe. Mesophallus stem slightly wider at base, width ~ 1 / 4 length; apical chamber small with simple rounded base, wider than long. Distiphallus tubule slightly longer than base + mesophallus, relatively straight with slight basal curve, lightly sclerotised, narrow with apex widened into darker, textured cup. Ejaculatory apodeme as long as basiphallus + phallophorus. Variation: Delaware female with first flagellomere darker and as long as high; paler brown or yellowish pigment absent from head, which is entirely dark brown; fourth dorsocentral more closely set to third dorsocentral.	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
474527D67CB44BA0D95B1BE68593EEA5.taxon	distribution	Distribution. USA: DE, MI.	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
474527D67CB44BA0D95B1BE68593EEA5.taxon	etymology	Etymology. The specific name is Latin for " finger ring ", referring to the pronounced ring around the eye.	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
E0B7F15AD8D280D7085873A867A1AB23.taxon	description	Figs 104, 567 - 573	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
E0B7F15AD8D280D7085873A867A1AB23.taxon	description	Description (Fig. 104). Wing length 2.0 - 2.2 mm (♂), 2.2 - 2.4 mm (♀). Length of ultimate section of vein M 4 divided by penultimate section: 1.5 - 2.0. Eye height divided by gena height: 9.0 - 10.0. First flagellomere slightly longer than high, anterodorsal margin forming strong angle. Arista pubescent. Frons slightly narrowing anteriorly, very soft, not smoothly meeting lunule. Fronto-orbital plate 1 / 4 width of frons, slightly visible laterally; ocellar triangle large, approximately equilateral with sides rounded; parafacial very narrow, continuing as narrow " cheek "; gena angled upwards. Gena and frons with minute scattered pits that are much denser and darker on frons; pits not present on fronto-orbital plate, reduced on ocellar triangle, becoming absent medially on tubercle. Chaetotaxy: Two to three ori; two ors; decreasing in length anteriorly with anterior seta as small as 2 / 3 length of posterior ors. Orbital setulae relatively long, scattered, in one or two rows on either side of fronto-orbitals. Ocellar and postocellar setae subequal to ors; ocellar setae slightly displaced laterally to level of outer ocelli. Four dorsocentral setae strongly decreasing in length anteriorly, with fourth seta often indistinguishable from surrounding setulae (not visible in material examined), and third at most 1 / 3 length of first seta. Acrostichal seta absent. Approximately eight scattered rows of acrostichal setulae reaching level of posterior dorsocentral. Lateral scutellar seta absent. Colouration: Setae dark brown. Body dark brown; fronto-orbital plate and region around margin of ocellar triangle paler; antenna paler with first flagellomere darkest of segments; apex of fore femur yellow for length less than width of femur. Calypter margin and hairs brown. Halter yellow. Wing veins brown, only yellow at very base. Genitalia: (Figs 567 - 573) Epandrium without process above anus; fused to surstylus with suture absent. Surstylus broad, short, slightly produced past margin of epandrium, directed inwards, margin setose. Subepandrial sclerite with ventral lobe narrow, dark, apically tapering and with slight outer-distal point. Basiphallus apically split. Hypophallus flat, long, faded and narrowed apically. Paraphallus absent. Mesophallus fused to distiphallus, forming long, clear, narrow tubule that is longer than remainder of phallus; slightly swollen basally and appearing partially split apically. Ejaculatory apodeme with small, rounded, mostly clear blade, and dark, narrow stem with minute clear subbasal process; sperm pump clear.	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
E0B7F15AD8D280D7085873A867A1AB23.taxon	distribution	Distribution. Canada: ON. USA: IL, MS *, TN, VA, VT *, WV *.	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
E0B7F15AD8D280D7085873A867A1AB23.taxon	materials_examined	Additional material examined. Canada. ON: Ottawa, Stony Swamp, Beaver Trail, 45 ° 18 ' 0 " N, 75 ° 49 ' 16 " W, 13. vi. 2015, O. Lonsdale, CNC 441042, CNC 441054, CNC 441059, CNC 441073, CNC 441084 (5 ♂, CNC), Ottawa, 17. vi. 1954, C. D. Miller, CNC 481023 (1 ♀, CNC). USA. MS: Winston Co., Noxubee NWR, Loakfoma Crk., at Dummy Line Rd., 33 ° 15 ' 9 " N, 88 ° 50 ' 53.01 " W, 17 - 21. v. 2013, J. M. Cumming, Malaise trap, CNC 481024 (1 ♀, CNC), TN: East Ridge, 4. v. 1952, O. Peck, CNC 481021 (1 ♂, CNC), 6. v. 1952, CNC 481022 (1 ♀, CNC), VA: Fairfax Co., Dead Run, 19. vi. 1915, R. C. Shannon (1 ♂, USNM), VT: Rutland Co., nr. Benson, hwy 22 A, 1 mi N hwy 144, 22. vi. 1997, sweeping, C. R. Bartlett (1 ♀, UDCC), WV: Grafton, 25. vi. 1970, G. Steyskal (1 ♂, USNM), Summers Co., Pipestem, 18. vi. 1970, G. Steyskal (1 ♂, USNM).	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
F291924A1DBF34E6E37D430739AB73A5.taxon	description	Figs 47, 48	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
F291924A1DBF34E6E37D430739AB73A5.taxon	description	Description (Figs 47, 48). Wing length 1.9 mm (♂ ♀). Length of ultimate section of vein M 4 divided by penultimate section: 1.2. Eye height divided by gena height: 8.6. Ocellar triangle large, glossy outside of tubercle and sharply pointed anteriorly. First flagellomere broadly rounded. Clypeus broadly rounded anteriorly. Distance between crossveins as long as dm-m. Costa not extending much past R 4 + 5. Lunule broad, very shallow. Base of antennae broadly separated. Face flat. Fronto-orbital plate narrow. Chaetotaxy: One strongly incurved ori; three ors; setae decreasing in width and length anteriorly. Ocellar and postocellar setae well-developed. Orbital setulae reclinate. Two well-developed dorsocentrals. Acrostichal setulae in eight rows. Posteromedial tibial setae absent. Colouration: Calypter and wing entirely white with veins brownish (costa darker). Halter brown. Body entirely brown to dark brown with gena and centre of frons paler. Genitalia: Unknown.	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
F291924A1DBF34E6E37D430739AB73A5.taxon	distribution	Distribution. Canada: ON. USA: MD. Gall attributed to this species observed in AB (Spencer, 1969).	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
BE40F1DB1D220C9E8A79CC91764D5F15.taxon	description	Figs 120, 574 - 581	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
BE40F1DB1D220C9E8A79CC91764D5F15.taxon	description	Description (Figs 120, 581). Wing length 1.3 - 1.4 mm (♂), 1.5 - 1.6 mm (♀). Vein dm-m absent. Eye height divided by gena height: 2.6 - 3.3. First flagellomere sometimes with shallow anterodorsal angle. Frons soft medially. Fronto-orbital plate and parafacial somewhat visible laterally. Clypeus narrow along length. Lunule semi-circular. Chaetotaxy: Three ori (slender with length ~ 1 / 2 width of frons); one ors. Postocellar and ocellar setae as long as ocellar tubercle. Orbital setulae few, minute, erect to proclinate, in a single row. Four dorsocentrals, one presutural, decreasing in length anteriorly. Acrostichal setulae in two sparse rows on anterior 1 / 2 of scutum. Colouration: Head light yellow with ocellar tubercle, back of head (often excluding margins) and clypeus brown; vertical setae on yellow. Notum dark with pale grey pruinosity, with notopleuron (excluding dark sublateral spot) and postpronotum (excluding small anteromedial spot) light yellow, and scutellum broadly light yellow along midline. Metanotum brown. Pleuron yellow with dark spot on anterior margins of anepisternum and anepimeron, meron dark medially and posteriorly, and ventral 4 / 5 of katepisternum brown, not including base of seta; dark portions obscured by grey pruinosity. Halter white. Calypter white. Legs light yellow with base of mid and hind coxae brown, and tarsi brownish; fore coxa sometimes brown basally. Abdomen brown on tergites 1 (2) - 4 with lateral margin yellow and posterior margin of latter three tergites yellow; tergites 5 and 6 yellow with one pair of confluent anterior spots (very small on tergite 6). Female as described for male except as follows: abdomen brown with oviscape dark and posterior margin of tergites 2 - 5 yellow (medially emarginate on tergite 5), and tergite 6 yellow with one pair of confluent anterior spots. Variation: BC male as above except outer vertical seta sometimes near dark spot emerging from back of head; first flagellomere with anterior margin brown infuscated, pigment extending to outer 1 / 2; fore femur sometimes with dorsal streak. One female (CA) with distal 1 / 2 of first flagellomere brown. Genitalia: (Figs 574 - 580) Epandrium broad and shallow, with width 3 x length; posterodistal margin with one tubercle-like seta. Surstylus small and rounded with three apical tubercle-like setae. Hypandrium thin with bare, ovate inner lobe; lightly sclerotised membrane uniting both sides along length. Postgonite with ventral extension and tapered apex. Ejaculatory apodeme finger-like, only slightly widened at base, and sperm pump only slightly sclerotised to one side. Phallus short, clear and highly reduced; boundary between basiphallus and distiphallus indistinct; ejaculatory duct only gradually widened at apex, where it emerges from surrounding basiphallus / distiphallus. Phallophorus narrowest at midpoint.	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
BE40F1DB1D220C9E8A79CC91764D5F15.taxon	distribution	Distribution. Canada: BC *, SK. USA: CA, FL, KS, ND, NM, TX, UT *, VA *, WA. Cuba. Guadeloupe (?).	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
BE40F1DB1D220C9E8A79CC91764D5F15.taxon	materials_examined	Additional material examined. Canada. BC: Kinbasket Lake, Cooper Beauchesne and Assoc. Ltd., 21. vi. 2010, BC Hydro drawdown study (12 MTRT 01) CNC 391566 (1 ♂, CNC). USA. CA: Bakersfield, 9. viii. 1948, ex. Amaranthus sp., W. H. Lange (1 ♀, USNM), Imp. Co., Meloland, 27. iv. 1977, Chenopodium, K. A. Spencer (1 ♀, USNM), Orange Co., Irving, 24. iv. 1977, Chenopodium murale, K. A. Spencer (1 ♀, USNM), Riverside Co., Corona, 19. x. 1958, P. Rude (1 ♀, USNM), KS: Manhattan, 26. viii. 1949, C. Stegmaier, No. 146 50 - 228, ex. Amaranthus retroflexus (1 ♂, USNM), ND: Bismarck, 14. vi. 1918 (1 ♂, USNM), NM: Las Cruces, J. M. Aldrich, 16. vi. 1917 (1 ♂, USNM), 14. vi. 1917 (1 ♀, USNM), Las Lunas, 17. vii. 1963, I. G. Watts, prairie sandroad (1 ♂, USNM), TX: Marfa, 13. vi. 1917, J. M. Aldrich (1 ♀, USNM), Crystal City, reared from pigweed, J. A. Harding, 16. iv. 1962 (1 ♂, USNM), 21. vi. 1962 (1 ♀, USNM), 15. viii. 1962 (1 ♀ 1?, USNM), 14. v. 1962 (2 ♀, USNM), UT: Corinne, on celery, 9 / 7 / 49, G. F. Knowlton (1 ♀, USNM), Farmington, on celery, 31. viii. 1949, G. F. Knowlton (1 ♀, USNM), VA: Northhampton Co., Kiptopeke, 2 - 5. x. 1987, on flowers of Solidago sepmervirens, W. E. Steiner, J. M. Swearingen, J. M. Hill and J. J. Marshall (1 ♂, USNM).	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
E2ADA554D82B22AFB7061A452E4939E3.taxon	description	Figs 49 - 51, 251 - 256	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
E2ADA554D82B22AFB7061A452E4939E3.taxon	description	Description (Figs 49 - 51). Wing length 2.7 - 3.2 mm (♂), 3.1 - 3.2 mm (♀). Length of ultimate section of vein M 4 divided by penultimate section: 0.6 - 0.7. Eye height divided by gena height: 8.0 - 8.3. Ocellar triangle faintly outlined. Fronto-orbital plate and ocellar tubercle subshiny. Lunule height 1 / 2 width, silvery pruinose; lunule and face broad and well-sclerotised with face flat. Clypeus broadly rounded. Notum and head with light dusting of pruinosity. Arista virtually bare. Chaetotaxy: All setae well-developed and setulae short and sparse. Two ori; two ors (widely separated). Two postsutural dorsocentrals. Ten rows of acrostichal setulae; acrostichal setula present. Postocellar and ocellar setae well-developed. Fore tibia with one lateral seta; mid tibia with two posteromedial setae. Colouration: Setae black (setulae on ocellar tubercle sometimes golden-brown). Body predominantly dark brown; thorax (less so on pleuron) and abdomen with metallic green reflection, and epandrium faintly to distinctly reddish brown. Wing veins brown. Calypter and halter white. Genitalia: (Figs 251 - 256) Surstylus fused to epandrium; suture obliterated; very narrow, apex rounded, nearly as high as epandrium; inner surface with patches of numerous tubercle-like setae distally and basally; twisted, inner face visible posteriorly. Hypandrium large, elongate with very long, stout, apical process; inner lobe bare, narrow and transverse. Postgonite broad, ovate, flat, and bare. Phallophorus small, fused to basiphallus. Basiphallus a single plate dorsal to right lateral. Hypophallus slightly shorter than basiphallus, dark, linear. Distiphallus very long, pale, and relatively straight, composed of longer flagellum on left side and shorter flagellum on right side, connected by thin membrane; often longer than illustrated. Mesophallus indistinct. Ejaculatory apodeme narrow, blade reduced with very shallow basolateral process; sperm pump unsclerotised with minutely spinulose ventral surface.	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
E2ADA554D82B22AFB7061A452E4939E3.taxon	distribution	Distribution. Canada: NB *, NS, ON, QC *. USA: DC, GA, IN, KS, MA, ME, NC, OK, PA, SC, TN, VA. Puerto Rico.	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
E2ADA554D82B22AFB7061A452E4939E3.taxon	materials_examined	Additional material examined. 142 ♂ 97 ♀ 1?, CNC, USNM. Canada. NB: Kouchibouguac N. P., 8. vi. 1977, J. R. Vockeroth, Code - 5222 V, Code - 52336, CNC 358580, CNC 358581, CNC 358582 (3 ♀, CNC), 9. vii. 1977, J. F. McAlpine, Code - 6023 Q, CNC 358583 (1 ♀, CNC), QC: Rigaud, 11. vi. 1981, J. R. Vockeroth, CNC 358579 (1 ♂, CNC).	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
1F39C719918A7815B955831C4829C5FB.taxon	description	Figs 582 - 587	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
1F39C719918A7815B955831C4829C5FB.taxon	description	Description. Wing length 2.0 - 2.1 mm (♂), 1.9 - 2.3 mm (♀). Length of ultimate section of vein M 4 divided by penultimate section: 1.3 - 1.4. Eye height divided by gena height: 5.3 - 7.0. Eye with small, scattered hairs. Chaetotaxy: Two ori (anterior seta small); two ors. Acrostichal setulae in four rows; posteromedial setulae inclinate. Third dorsocentral from back reduced to absent. Mid tibia with two small posteromedial setae. Colouration: Head yellow with ocellar tubercle, back of head above foramen and posterior margin of frons lateral to vertical setae brown; clypeus sometimes brown. Scutum very shiny and yellow with dark medial stripe on anterior 2 / 3, one pair of lateral presutural spots and one pair of postsutural bifid stripes; markings usually fused medially, and (south of Canada) sometimes forming large spot nearly reaching lateral and posterior margins. Scutellum yellow, sometimes with lateral corner brown. Metanotum yellow with mediotergite dark brown and venter of katatergite and anatergite brown. Pleuron and legs yellow with faint triangular spot on katepisternum; southern specimens sometimes with spot more distinct and meron with small spot. Calypter margin and hairs dark. Abdomen mostly yellow, sometimes with faint dorsal stripe narrowing to tergite 5 or 6. Genitalia: (Figs 582 - 587) Epandrium large with sides broadly rounded; posterodistal corner with wide, elongate bar on inner surface. Surstylus subtriangular with apex elongate and dark. Hypophallus broad, faintly sclerotised, lateral margin thicker and folded, with small, weak medial plate with small apical hairs; basomedial region elaborated into one pair of thick folds that meet medially. Basiphallus with dorsal plate fused to phallophorus. Mesophallus indistinct, possibly evident as basal stem of distiphallus and sclerotised ventromedial folds, the latter of which may also be modified paraphalli. Distiphallus perpendicular to basiphallus; length ~ 2 x width; consisting of two broad, fused lobes that slightly widen apically; inner surface minutely spinulose on distal 1 / 2. Ejaculatory apodeme very large, broadly rounded and pale with sperm pump heavily sclerotised with flat lateral extensions.	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
1F39C719918A7815B955831C4829C5FB.taxon	distribution	Distribution. Canada: AB, NL, ON, QC. USA: DE, FL, GA, IA, ID, IL, MA, MD, MI, MS, NC, NY, OH, OK, PA, SC, SD, TX, VA, WV; leaf mine only in KS, WI (Eiseman et al. 2021). Bermuda. Bolivia. Brazil. Dominica. Dominican Republic. Guadeloupe. Martinique.	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
1F39C719918A7815B955831C4829C5FB.taxon	materials_examined	Additional material examined. See Lonsdale (2017).	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
B6E24EA47616ACA720424FED8A7B79E7.taxon	description	Figs 588 - 594	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
B6E24EA47616ACA720424FED8A7B79E7.taxon	description	Description. Wing length 1.2 - 1.6 mm (♂), 1.7 - 1.8 mm (♀). Length of ultimate section of vein M 4 divided by penultimate section: 2.5 - 3.5. Eye height divided by gena height: 2.9 - 5.0. Scutum shiny. Chaetotaxy: Two or rarely three ori; two ors. Acrostichal setulae in four rows. Colouration: Lateral margin of frons sometimes with narrow brown margin, varying in strength from indistinct (common) to reaching base of fronto-orbitals; posterolateral corner of frons brown to base of inner or outer vertical seta, sometimes light brown between bases of setae; remainder of head light yellow with back of head and ocellar triangle brown. Scutum dark brown with complete lateral yellow stripe. Scutellum yellow with lateral corner brown. Katatergite yellow with posteroventral margin brown; anatergite light brown with dorsum yellow; mediotergite dark brown. Anepisternum usually with most of ventral margin brown, although sometimes also with posterior margin broadly pigmented or only with small anteroventral spot; anepimeron mottled; meron brown with dorsal 1 / 3 yellow; katepisternum with large brown triangular spot (not enclosing seta). Calypter margin and hairs grey. Legs yellow with tibiae, tarsi and base of fore coxa brown (fore and mid legs paler, particularly towards apex); sometimes base of femora (often only dorsally) and scraper on hind femur brown; uncommonly with brown streaking on fore femur, but if present, then lateral margin of frons narrowly brown, dark line present between base of vertical setae and hind coxa brown. Abdomen brown with lateral and sometimes posterior margin of tergites 2 - 4 yellow; tergite 2 sometimes with yellowish mottling and tergites 2 - 4 sometimes with narrow medial dividing yellow line, and tergite 4 often nearly divided medially into two pairs of spots; tergite 5 and sometimes 6 yellow with large brown medial spot; epandrium with yellow dorsal mottling. Genitalia: (Figs 588 - 594) Epandrium with one posterodistal spine. Surstylus small and lobate with short apical spine and smaller ventromedial spine, widely spaced. Basiphallus with left lateral and dorsoapical surfaces sclerotised. Hypophallus small, narrow, curved anteriorly and with few apical hairs. Paraphallus narrow or slightly expanded distally. Distiphallus and mesophallus fused, narrow, cylindrical, dark, with small, pale apical chamber; gradual constriction at point of fusion between distiphallus and mesophallus. Ejaculatory apodeme dark and broad, with corners pronounced, width equal to length and stalk narrow.	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
B6E24EA47616ACA720424FED8A7B79E7.taxon	distribution	Distribution. Widespread in Nearctic, Oriental and Australasian Regions. Africa. Arabian Peninsula. Europe. Canary Islands. Japan.	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
B6E24EA47616ACA720424FED8A7B79E7.taxon	materials_examined	Additional material examined. USA. MD: 4 mi SW of Ashton, 29. v. 1986, Malaise trap, G. F. and J. F. Hevel (1 ♂, USNM), Prince Georges Co., Beltsville, 18. ix. 1969, R. E. Holmes (1 ♀, USNM), NC: Durham Co., Durham, Pelham Road, 21. vi. 2017, em. 8. vii. 2017, T. S. Feldman, ex Cleome hassleriana, # CSE 3909, CNC 939820 (1 ♀, CNC), NY: Essex Co., Upper Jay, by Ausable River, East Branch, 2. vi. 2012, em. by 23. vi. 2012, C. S. Eiseman, ex Cardamine diphylla (1 ♀, CNC), VA: Shenandoah Co., Bayse, 21. vii. 1974, G. A. Foster (1 ♀, USNM), WV: Bluefield, 17. vi. 1970, G. Steyskal (1 ♂, USNM). Also see Lonsdale (2011, 2017).	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
6BB56E7BBD37AC99B7527E79DF2A4D3E.taxon	description	Description. Wing length 2.0 - 2.2 mm (♀). Male unknown. Length of ultimate section of vein M 4 divided by penultimate section: 1.2. Eye height divided by gena height: 2.6. First flagellomere small with anterodorsal margin angulate. Ocellar triangle and parafacial shiny, parafacial broad and projecting, cheek pronounced. Ocellar tubercle slightly shifted forward, leaving gap between posterior margin and postocellars. Chaetotaxy: Setae relatively thin. Three ori (relatively close to anterior margin of frons); one ors; five fronto-orbitals in holotype. Approximately six scattered rows of acrostichal setuae. Four dorsocentral setae, anterior two pairs very reduced, but larger than surrounding setulae. Colouration: Frons orange, becoming darker to posterior margin; tubercle surrounded by large brown spot; face brownish to venter; clypeus, lower margin of gena and back of head brown; remainder of head yellow with " orbits glossy black " in holotype. Scutum and laterotergites dark brown and shiny with postpronotum, notopleuron and small supra-alar spot yellow. Scutellum yellow with lateral corner brown. Calypter margin and hairs dark. Pleuron brown. Legs yellow with tibiae, tarsi, and dorsal margin of coxae brown. Abdomen dark brown.	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
6BB56E7BBD37AC99B7527E79DF2A4D3E.taxon	distribution	Distribution. USA: IL, VA. Frick (1952 a) notes the presence of this species in VT, but later (Frick 1959) notes that only two females from IL and VA are known.	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
6BB56E7BBD37AC99B7527E79DF2A4D3E.taxon	materials_examined	Material examined. USA. VA: Chain Bridge, 23. iv. 1922, J. R. Malloch (1 ♀, USNM).	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
43A9AE04B3CF1708C7C80EB9D32DC549.taxon	description	Figs 595 - 598	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
43A9AE04B3CF1708C7C80EB9D32DC549.taxon	description	Description. Wing length 1.6 - 1.7 mm (♂), 1.8 mm (♀). Length of ultimate section of vein M 4 divided by penultimate section: 4.0. Eye height divided by gena height: 2.1 - 4.3. Chaetotaxy: Two ori; two ors. Acrostichal setulae in four rows. Colouration: Head yellow with clypeus brownish, ocellar tubercle and back of head brown, vertical setae on yellow. Scutum shiny and dark brown with postpronotum, notopleuron, and posterolateral (to inner postalar) and posterior margins yellow. Scutellum yellow with lateral corner brown. Metanotum yellow with mediotergite brown. Pleuron yellow with small anteroventral spot on anepisternum, and most of anepimeron and meron brown. Calypter margin and hairs brown. Legs yellow with tibiae and tarsi light brown, hind leg darkest. Abdomen dark brown. Genitalia: (Figs 595 - 598) Epandrium with single posterodistal spine. Surstylus small and lobate / subtriangular with two long subapical spines. Hypandrium thin with inner lobe not discernable in original holotype dissection. Postgonite cleft on inner face apically and with small inner subapical lobe. Basiphallus evenly sclerotised on left side and with apical projection. Hypophallus small, narrow, and curved. Mesophallus short with small floating ventrobasal sclerite and dorsobasal extension. Distiphallus slightly longer than mesophallus, narrow and cup-shaped.	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
43A9AE04B3CF1708C7C80EB9D32DC549.taxon	distribution	Distribution. USA: IA, KS, MA, MD, MN [leaf mine], VA, WI.	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
43A9AE04B3CF1708C7C80EB9D32DC549.taxon	materials_examined	Additional material examined. USA. IA: Winneshiek Co., 43 ° 25 ' 55.97 " N, 92 ° 0 ' 34.78 " W, 16. vii. 2015, C. S. Eiseman, Ageratina altissima, em. 22 - 23. vii. 2015, # CSE 1797, CNC 654352, CNC 654353 (2 ♂, CNC), KS: Riley Co., Konza Prairie Biological Station, 3. vii. 2015, em. 21 - 26. vii. 2015, C. S. Eiseman, ex Vernonia baldwinii, # CSE 1768, CNC 564709, CNC 564710 (2 ♂, CNC), MA: Franklin Co., Northfield, 276 Old Wendell Rd., 6. vi. 2016, C. S. Eiseman, Ageratina altissima, em. 22 - 28. vi. 2016, # CSE 2613, CNC 654063 - 654069 (5 ♂ 2 ♀, CNC), 276 Old Wendell Rd., 6. vi. 2016, C. S. Eiseman, Ageratina altissima, em. 30. vi- 7. vii. 2016, # CSE 2677, CNC 654081 - 654087 (3 ♂ 4 ♀, CNC), MD: Somerset Co., Snow Hill, 16. vii. 1968, swamp margin, W. W. Wirth (1 ♀, USNM), VA: Shenandoah, Big Meadows, 3. vii. 1939, A. L. Melander (1 ♀, USNM).	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
C6EE27A071FCB5841D00A218ADD542B6.taxon	description	Figs 599 - 602	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
C6EE27A071FCB5841D00A218ADD542B6.taxon	description	Description. Wing length 1.7 - 2.2 mm (♂), 1.9 - 2.0 mm (♀). Length of ultimate section of vein M 4 divided by penultimate section: 2.0 - 2.7. Eye height divided by gena height: 3.0 - 4.4. Chaetotaxy: Two ori (sometimes three on one side); two ors. Acrostichal setulae in four irregular rows. Colouration: As described for L. sativae except as follows: lateral margin of frons brown (not enclosing fronto-orbitals) if first flagellomere brownish on distal margin; only base of hind femur sometimes brown dorsally, or in western North America, femora brown basally and with light dorsoapical mottling (rarely with more extensive pigmentation), but less commonly with only basal markings or entirely yellow; yellow posterolateral spots on scutum sometimes large and distinct; anepisternum dark along anteroventral and ventral margins, sometimes with spot reaching base of anepisternal seta. Genitalia: (Figs 599 - 602) Epandrium and surstylus as for L. sativae. Basiphallus sclerotised along dorsoapical, left lateral and part of right lateral surfaces. Paraphallus narrow. Hypophallus small, narrow, and strongly curved. Mesophallus 1 / 2 width of distiphallus; mesophallus and distiphallus with complete ventral suture. Distiphallus broadly bell-shaped with sides slightly converging apically and basal margin thick and truncated. Ejaculatory apodeme with stalk narrow and blade broad with dark distal margin.	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
C6EE27A071FCB5841D00A218ADD542B6.taxon	distribution	Distribution. Canada: AB, BC, MB, NB, NS, ON, QC, SK. USA: CA, DE, GA, IL, MA, MI, MS, MT, NC, NY, OK, PA, SC, TN, VA, WA, WV. Europe.	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
C6EE27A071FCB5841D00A218ADD542B6.taxon	materials_examined	Material examined. England. Chippenham Fen., Cambs., Em., " Eup. Cann. ", K. A. Spencer (1 ♂ [with puparium], USNM), Cornwall, Huckett, 11. vi. 1976, on Eupatorium (1 ♂, USNM). USA. GA: Robun Co., Addie Branch, E. Fork Chattooga River, 2400 ', 1. viii. 1957, J. G. Chillcott (1 ♀, USNM), MA: 4 mi SW of Ashton, 3. vi. 1984, G. F. and J. F. Hevel (1 ♀, USNM), Walden Pond, Concord, 26. vii. 1961, W. W. Wirth (1 ♂, USNM), Hampshire Co., South Hadley, nr. Lithia Springs Reservoir, 11. v. 2016, C. S. Eiseman, Symphyotrichum cordifolium, em. 27. v. 2016, # CSE 2505, CNC 654242 - 654244 (3 ♂, CNC), MD: Somerset Co., Snowhill, 19. v. 1968, swamp margin, W. W. Wirth (1 ♀, USNM), Plummers Isl., 8. v. 1915, J. C. Crawford (1 ♀, USNM), Montgomery Co., Clarksburg, 20 - 22. v. 1988, W. E. Steiner and J. M. Swearingen (1 ♂, USNM), Colesville, 14. vi. 1976, W. W. Wirth (1 ♂, USNM), Bethseda, G. Steyskal, 4. v. 1969 (3 ♂ 1 ♀, USNM), 26. v. 1968 (1 ♀, USNM), 27. v. 1972 (1 ♂, USNM), 26. v. 1974 (1 ♂, USNM), " 7 - 12 " (1 ♀, USNM), MS: Leland, experimental forest, 11. v. 1979, K. A. Spencer (1 ♀, USNM), NC: Smokies, Forneys Ridge, 26. vi. 1941, A. L. Melander (1 ♀, USNM), OK: Payne Co., Mehan, 23. iii. 2016, M. W. Palmer, Symphyotrichum praealtus, em. 14. iv. 2016, # CSE 2650, CNC 653986 (1 ♂, CNC), PA: Spring Br., 11. vi. 1945, DDT Expt. (1 ♀, USNM), TN: East Ridge, 6. v. 1952, O. Peck (1 ♀, USNM), VA: Alexandria, 29. vi. 1952, W. W. Wirth (1 ♀, USNM), Warsaw, 26. vii. 1952, W. W. Wirth (1 ♀, USNM), Falls Church, Holmes Run, 21. vi. 1961, light trap, W. W. Wirth (1 ♂, USNM), Shenandoah, Big Meadows, 5. vii. 1939, A. L. Melander (1 ♂ 1 ♀, USNM), Giles Co., Mountain lake, 7. ix. 1977, G. C. Steyskal (4 ♂, USNM), Great Falls, 4. v. 1963, G. Steyskal (1 ♂, USNM). Also see Lonsdale (2011, 2017).	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
A9B178719CC7BAC956A5BB7C3BAA61AA.taxon	description	Figs 603 - 607	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
A9B178719CC7BAC956A5BB7C3BAA61AA.taxon	description	Description. Wing length 1.3 - 2.0 mm (♂), 1.4 - 1.8 mm (♀). Length of ultimate section of vein M 4 divided by penultimate section: 1.7 - 3.5. Eye height divided by gena height: 3.0 - 4.2, sometimes up to 5.1 in Canadian specimens. Scutum lightly dusted with pruinosity. Chaetotaxy: Two ori (anterior seta small to absent); two ors. Acrostichal setulae in two rows (sometimes three anteriorly). Colouration: Head yellow with posterolateral margin of frons lateral to (and not touching) vertical setae yellow to brown; back of head brown dorsally; ocellar tubercle brown; clypeus brown to light brown with centre yellow. Scutum with complete lateral yellow stripe broadly overlapping margin of scutellum. Scutellum yellow with lateral corner brown. Katatergite yellow; anatergite sometimes brownish ventrally; mediotergite dark brown. Pleuron yellow with large spot on katepisternum and meron, and with small (sometimes very faint to indistinct) anteroventral spot on anepisternum and anepimeron; anepimeron sometimes brown mottled. Calypter margin brownish. Legs yellow with fore tibia and tarsi brownish, mid and hind tarsi brown, and mid and hind tibiae brown at base, apex and on dorsal surface; material from western United States with tibiae yellow with dorsum faintly brown (paler to entirely yellow on anterior legs) and tarsi only brownish on distal three segments; femora of Canadian specimens sometimes with pale dorsal streaking or with brown dorsobasal spot. Abdomen yellow with dorsum, epandrium and surstylus brown. Variation in Canadian material discussed in Lonsdale (2017). Genitalia: (Figs 603 - 607) Epandrium with one posterodistal spine. Surstylus darkly pigmented with one large and one small subapical spine. Inner surface of epandrium with one pair of dark bars with apical spine. Basiphallus broadly sclerotised along left lateral and dorsal surfaces. Swollen apical section of ejaculatory duct short, wide, and narrowed apically. Hypophallus relatively short with long apical hairs. Paraphallus absent. Mesophallus narrow, cylindrical, and fused to distiphallus; mesophallus and distiphallus with ventral suture. Distiphallus large, weakly pigmented, bowl-shaped with minute internal reticulations and spinules, angled dorsally, slightly bilobed, elongate, and with one pair of short, wide membranous tubules. Ejaculatory apodeme well-developed and dark with base of duct lightly sclerotised, stem narrow and blade large and thickened along margin; sclerite on sperm pump broad, dark, with thick margin.	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
A9B178719CC7BAC956A5BB7C3BAA61AA.taxon	distribution	Distribution. Canada: AB, BC, MB, NB, NS, NT, ON, PE, QC, SK, YT. USA: CA, MA, MD, MI, MN, NY, WA, WI, WY.	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
A9B178719CC7BAC956A5BB7C3BAA61AA.taxon	materials_examined	Additional material examined. USA. MA: Hampshire Co., Pelham, Quarry St., 6. vii. 2013, em. 17. vii. 2013, C. S. Eiseman, ex Trifolium repens, # CSE 709, CNC 384758 (1 ♂, CNC). Also see Lonsdale (2011, 2017).	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
E71812BBCBE4AB0952694E3D079D97C5.taxon	description	Figs 608 - 611	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
E71812BBCBE4AB0952694E3D079D97C5.taxon	description	Description. Wing length 1.5 - 1.9 mm (♂), 1.8 - 1.9 mm (♀). Length of ultimate section of vein M 4 divided by penultimate section: 2.7 - 5.0. Eye height divided by gena height: 3.2 - 9.3. Scutum shiny. Chaetotaxy: Two ori (rarely one); two ors; sometimes appearing as three ori and one ors. Acrostichal setulae in four rows. Colouration: Body brown with first flagellomere yellow; halter white; scutellum, postpronotum and notopleuron slightly paler. Calypter margin and hairs dark. Genitalia: (Figs 608 - 611) Epandrium relatively long and tapered ventrally, with one posteromedial and one apical tubercle. Surstylus small, subtriangular, and with two spines. Basiphallus largely membranous with dorsum lightly sclerotised. Hypophallus broad, flat, and lightly sclerotised. Distiphallus composed of narrow stem fused to similarly narrow mesophallus, with broad interfolding cup-like apex with smaller, bilobed (each lobe sclerotised medially), mostly membranous distal section. Ejaculatory apodeme with dark, gradually tapering stalk and smooth, pale blade; sclerite of sperm pump with dark rounded lateral extensions continuous with sclerotised base of duct and base of ejaculatory apodeme.	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
E71812BBCBE4AB0952694E3D079D97C5.taxon	distribution	Distribution. Canada: AB, BC, ON, QC (puparium and reared braconid parasitoid). USA: AK, MA, MD, MN, OH, WV. Europe, Russia (Cerny et al. 2020).	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
E71812BBCBE4AB0952694E3D079D97C5.taxon	materials_examined	Material examined. See Lonsdale (2017).	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
AC6DD3279C3B539229B0E5A1708A9BBE.taxon	description	Figs 640 - 644	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
AC6DD3279C3B539229B0E5A1708A9BBE.taxon	description	Description. Wing length 1.3 - 1.5 mm (♂), 1.5 - 1.6 mm (♀). Length of ultimate section of vein M 4 divided by penultimate section: 2.1 - 3.7. Eye height divided by gena height: 4.0 - 5.3. Scutum subshiny. Chaetotaxy: Two ori; two ors (rarely three). Acrostichal setulae in four rows. Colouration: Head light yellow with ocellar tubercle, back of head, clypeus, and posterolateral region of frons to inner vertical seta (paler between verticals) dark brown. Scutum dark with complete lateral yellow stripe. Scutellum yellow with lateral corner brown. Katatergite yellow and anatergite brown with posterodorsal corner yellow; mediotergite dark brown. Anepimeron mostly brown, anepisternum with variable brown striping on ventral 1 / 2, meron brown with dorsal margin yellow and katepisternum brown on ventral 3 / 4 (yellow around base of seta). Calypter margin grey. Tibiae, tarsi, and bases of coxae brown, with tarsi and sometimes tibiae becoming paler basally; femora sometimes with very small, weak basal spot. Abdomen brown, tergites narrowly yellow posteriorly and broadly yellow laterally. Genitalia: (Figs 640 - 644) Epandrium with one posterodistal spine. Surstylus with single subapical spine. Basiphallus sclerotised along left lateral and most of dorsal surfaces. Paraphallus large and well-defined, becoming broader distally and sometimes strongly clavate; sometimes not strongly widened apically and base of distiphallus slightly thicker. Hypophallus well-developed. Mesophallus short and slightly wider and darker than distiphallus base; completely fused to distiphallus. Distiphallus with complete ventral suture widening apically; gradually widening in ventral view, with broad apical chamber enclosing paired fringed structures; distiphallus straight to slightly sinuate in profile and with relative dimensions and amount of pigment slightly variable between specimens. Ejaculatory apodeme large, dark, and well-developed; stem narrow at base and blade broad; sperm pump with sclerotised bar broad, thick and wide at ends. Variation: Some material darker than " typical " specimens described above. Sometimes with yellow lateral stripe on scutum entirely brown to mottled postsuturally; sometimes lateral margin of frons brown (sometimes also including base of ors), femora striated or darker apically (at least on fore femur), and pleuron darker, sometimes with only dorsal margin of anepisternum, katepisternum and katatergite yellow; abdomen sometimes entirely brown. Additional variation among Canadian specimens discussed in Lonsdale (2017).	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
AC6DD3279C3B539229B0E5A1708A9BBE.taxon	distribution	Distribution. Canada. AB, BC, MB, NB, NS, ON, QC, SK. USA. CA, CO, MD, NC, NM, OR, VA, WA.	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
AC6DD3279C3B539229B0E5A1708A9BBE.taxon	materials_examined	Additional material examined. USA. MD: Montgomery Co., Bethseda, 7. vii. 1970, G. Steyskal (1 ♂, USNM), NM: Cimarron, 26. v. 1969, W. W. Wirth, river margin (1 ♂ [head missing], USNM), OR: Lake Co., 3. vii. 1971, 10 mi NE Christmas Valley, G. Steyskal (1 ♂ [head missing], USNM), WA: Kamiac Butte, 25. vii. 1914, A. L. Melander (1 ♂, USNM). Also see Lonsdale (2011, 2017).	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
5D37D7CD3C0ADC8A4DFB561FA1DF84ED.taxon	description	Figs 612 - 615	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
5D37D7CD3C0ADC8A4DFB561FA1DF84ED.taxon	description	Description. Wing length 1.8 - 2.0 mm (♂), 2.0 - 2.3 mm (♀). Length of ultimate section of vein M 4 divided by penultimate section: 2.0 - 2.3. Eye height divided by gena height: 4.6 - 4.8. Notum shiny to subshiny. Chaetotaxy: Two ori (three on left side in holotype); two ors. Acrostichal setulae in four rows. Colouration: Head yellow, with back of head (excluding margin) brown, and small medial spot on ocellar tubercle brown with stripes extending to inner margin of ocelli. Scutum dark brown with lateral margins yellow and posterior margin yellow, including large subquadrate region anterior to scutellum; posterolateral margin of brown spot with one pair of rounded extensions on each side, suggesting underlying vittate pattern similar to that seen in L. blechi. Scutellum and metanotum yellow with mediotergite brown. Pleuron yellow with ventral 1 / 2 of katepisternum and meron dark brown. Calypter margin dark. Legs yellow with brownish tint on mid and hind tibiae (darker on hind leg). Abdomen yellow with epandrium and ill-defined dorsomedial stripe brown. Genitalia: (Figs 612 - 615) Epandrium with one posterodistal spine. Surstylus with three dorsal setae and no spine; produced ventrally into long, pointed, outwardly curved process. Basiphallus sclerotised on dorsal and left lateral surfaces, with left distal margin produced past distiphallus as strong lobe. Hypophallus linear, narrow and pointed. Mesophallus narrow, dark, slightly longer than high or wide, with sides of ventral suture produced as irregular carina. Distiphallus cup-like, pale (darker laterally), widest medially and slightly compressed dorsoventrally.	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
5D37D7CD3C0ADC8A4DFB561FA1DF84ED.taxon	distribution	Distribution. Canada: ON. USA: DC, NY.	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
5D37D7CD3C0ADC8A4DFB561FA1DF84ED.taxon	materials_examined	Additional material examined. Canada. ON: Ottawa, Central Experimental Farm, adult on Philadelphus sp., 8. vi. 2017, O. Lonsdale, CNC 799487 (1 ♀, CNC). Also see Lonsdale (2017).	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
DC232E009808FDF910C5339EC8165A01.taxon	description	Figs 22, 109, 110, 621 - 625	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
DC232E009808FDF910C5339EC8165A01.taxon	description	Description (Figs 109, 110). Wing length 1.3 - 1.6 mm (♂), 1.4 - 1.8 mm (♀). Length of ultimate section of vein M 4 divided by penultimate section: 1.6 - 4.0. Eye height divided by gena height: 4.4 - 5.8. Scutum shiny to subshiny. Chaetotaxy: Two ori (anterior seta sometimes reduced to absent), sometimes three; two ors. Acrostichal setulae in four irregular rows. Colouration: Posterolateral corner of frons brown, usually fading to yellow at base of outer or inner vertical seta; few western specimens with narrow brown margin along fronto-orbital plate tapering to anterior ori; back of head above foramen, ocellar tubercle and clypeus brown; venter of gena with narrow brownish stripe that sometimes fades posteriorly; anterior margin of first flagellomere rarely appearing lightly infuscated. Scutum with complete lateral yellow stripe, sometimes with brown mottling posteriorly. Scutellum yellow with lateral corner dark brown. Katatergite sometimes with posterior margin to posterior 1 / 2 brown; anatergite brown; mediotergite dark brown. Pleuron yellow with ventral 2 / 3 of katepisternum, meron, small spot (s) on anepimeron and anteroventral corner of anepisternum brown; anepisternum sometimes predominantly brown along ventral margin; specimens from western North America sometimes darker with only dorsal 1 / 4 of anepisternum (as well as deep posterodorsal emargination), meron and katepisternum yellow; if only dorsal margin of anepisternum narrowly yellow (rare), lateral margin of frons infuscated, femora more extensively mottled dorsally or only yellow apically and distoventrally, lateral margin of scutum sometimes brownish postsuturally, metanotum darker and abdominal tergites entirely brown. Calypter margin grey. Legs yellow with tibiae, tarsi and bases of coxae light brown; bases or dorsal bases of hind and (less commonly) mid femora sometimes brown (if so, base of fore femur occasionally also brown); fore femur, and much less commonly mid and hind femora sometimes with outer-dorsal striations. Abdomen brown with lateral and sometimes posterior margins yellow (sometimes widely on tergite 5); epandrium dark with dorsum and perianal region usually yellowish. Genitalia: (Figs 621 - 625) Epandrium with one posterodistal spine. Surstylus lobate with one apical spine. Phallophorus well-developed with high dorsum. Basiphallus sclerotised along most of left-lateral and dorsomedial surfaces, leaving distal section of duct exposed. Hypophallus linear, narrow, with several apical hairs. Paraphallus small, linear. Mesophallus separate from distiphallus, small, narrow, subcylindrical with slight ventral carina along suture. Distiphallus simple, cup-like, narrowed basally; with apical, basal, and ventral surfaces more well-sclerotised, forming weak C-shape in profile. Ejaculatory apodeme pale and with base of blade and stem relatively dark and narrow, sometimes broader apically with corners more pointed.	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
DC232E009808FDF910C5339EC8165A01.taxon	distribution	Distribution. Canada: ON (likely to be widespread in southern Canada and in greenhouses, although the cold climate will likely prevent it from ever becoming a serious pest on outdoor crops). USA: TX to CA, CO and SC, and further north in greenhouses (OH, MD, PA). Neotropics. Introduced globally throughout growing regions.	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
9E06667CED4D3CC15CFF7DF0CFD7DD98.taxon	description	Figs 626 - 631	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
9E06667CED4D3CC15CFF7DF0CFD7DD98.taxon	description	Description [from Lonsdale (2017)]. Wing length 2.4 mm (♂), 2.1 - 2.7 mm (♀). Length of ultimate section of vein CuA 1 divided by penultimate section: 2.1 - 2.9. Eye height divided by gena height: 3.8 - 6.9 [head missing in holotype]. Scutum subshiny. Chaetotaxy: Two ori; two ors. Acrostichal setulae in four rows. Colouration: Calypter margin brown. Head yellow with ocellar triangle and back of head dark brown; lateral corner of frons dark brown, becoming paler to base of outer vertical seta; clypeus dark brown with centre sometimes paler. Scutum with complete yellow stripe laterally. Lateral corner of scutellum with small brown spot. Katatergite brown posteriorly; anatergite brown with dorsum yellow; mediotergite dark brown. Anepisternum with brown stripe across ventral 1 / 2; anepimeron yellow with brown streaking (paler posteriorly); meron brown with dorsum yellow; ventral 2 / 3 of katepisternum brown. Legs yellow with bases of coxae brown, tibiae, and tarsi brown (anterior legs paler); hind femur sometimes brown dorsobasally, and if so, fore and mid femora sometimes also similarly brown. Abdomen dark brown with lateral margin of tergites yellow. Genitalia: (Figs 630, 631) Surstylus broad with two long posterobasal spines (not apical to subapical). Phallophorus with long, narrow dorsal process that is sharply bent ventrally. Basiphallus with left lateral and dorsoapical surfaces sclerotised. Hypophallus short with long subapical hairs. Paraphallus pale and narrow with venter darker. Mesophallus short, thick-walled dorsally, narrowed basally and distally; mesophallus and distiphallus with complete ventral suture. Distiphallus cup-shaped, slightly compressed dorsoventrally towards darkened base; with few spines along distal margin of shallow medial and apical chambers. Ejaculatory apodeme with narrow stem and clear marginal band; sclerite of sperm pump highly reduced. Variation: (Figs 626 - 629) Non-type males differ as follows: wing length 1.9 - 2.2 mm; eye height divided by gena height 6.7 - 8.0; two ori and ors; femora entirely yellow; stripe on anepisternum sometimes narrower; extension on the left distal margin of the basiphallus shorter and narrower; paraphallus slightly thicker; mesophallus ~ 1 / 3 shorter; distiphallus higher, stouter, with more conspicuously delimited short medial chamber and with base broader (apparently shorter with more rounded base in illustration in original publication, but this may be an artifact); ejaculatory apodeme more weakly sclerotised marginally on blade and not more heavily sclerotised on lateral margin of blade furthest from duct; sclerite of sperm pump weaker and not produced laterally.	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
9E06667CED4D3CC15CFF7DF0CFD7DD98.taxon	distribution	Distribution. Canada: ON. USA: NC, TN, VA.	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
9E06667CED4D3CC15CFF7DF0CFD7DD98.taxon	materials_examined	Material examined. See Lonsdale (2017).	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
95C57FF102AA1CA7C30CAE752D7EFDD6.taxon	description	Figs 632 - 635	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
95C57FF102AA1CA7C30CAE752D7EFDD6.taxon	description	Description. Wing length 1.8 - 2.3 mm (♂), 1.8 - 2.2 mm (♀). Length of ultimate section of vein M 4 divided by penultimate section: 1.5 - 4.0. Eye height divided by gena height: 2.8 - 3.2. Scutum subshiny. Chaetotaxy: Two ori (sometimes three on one side); two ors. Acrostichal setulae in four or five irregular rows. Colouration: Head mostly yellow; ocellar triangle, back of head, clypeus and posterolateral margin of frons to base of inner vertical seta dark brown; fronto-orbital plate brown to base of posterior or anterior ors (fading anteriorly), or with light mottling at base of setae; face light brown to yellow; posteroventral margin of gena with narrow brownish stripe; first flagellomere sometimes with distal margin infuscated. Scutum with complete lateral yellow stripe that is sometimes brown posteriorly. Scutellum yellow with lateral corner brown. Metanotum brown, usually with katatergite partially yellow dorsally. Pleuron brown with dorsal 1 / 4 or less of anepisternum, mottling on anepimeron, dorsal margin of meron and dorsal or dorsomedial margin of katepisternum yellow; katepisternal seta usually enclosed by brown but sometimes on yellow border. Calypter margin and hairs dark. Coxae (sometimes excluding apex to distal 2 / 3 of fore coxa), tibiae and tarsi brown; base of femora brown (sometimes only dorsally in eastern material or with mid femur entirely yellow), remainder of segment variably patterned, but usually paler on fore or mid femora, and infrequently entirely brown with only apex and anteroventral surface yellow. Abdomen brown, sometimes with posterior margin of tergites 2 - 5 yellow. Genitalia: (Figs 632 - 635) Epandrium with one posterodistal spine. Surstylus slightly narrowing distally and with two subapical spines with outer spine slightly smaller. Apical membrane of basiphallus produced into one pair of pointed paraphalli. Hypophallus absent or present as small offset sclerotised plate. Mesophallus slightly longer than wide, most heavily sclerotised laterally and dorsally; mesophallus and distiphallus with complete ventral suture. Distiphallus short, entirely divided medially with halves narrow, weakly sclerotised apically and with several inner-marginal points. Ejaculatory apodeme narrow and poorly developed with venter of sperm pump broadly sclerotised.	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
95C57FF102AA1CA7C30CAE752D7EFDD6.taxon	distribution	Distribution. Canada: AB, BC, NB, NS, ON, PE, QC, SK. USA: AZ, CA, DE, FL, MA, MD, NM, NY, OH, OR, PA, UT, VA, WA, WI, WV.	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
95C57FF102AA1CA7C30CAE752D7EFDD6.taxon	materials_examined	Additional material examined. USA. CA: Lake Co., McLaughlin Natural Reserve, 18. iv. 2016, E. LoPresti, Trichostema laxum, em. 1 - 4. v. 2016, # CSE 2437, CNC 654495, CNC 654496 (2 ♂, CNC), FL: Gainesville, R. N. Wilson (1 ♂, USNM), MD: Montgomery Co., Colesville, 4. vi. 1977, W. W. Wirth (1 ♀, USNM), Colesville, 4. ix. 1977, Malaise trap, W. W. Wirth (1 ♀, USNM), OR: Mt. Hood, Hoods Rapids, 29. vii. 1921, A. L. Melander (1 ♂, USNM), Lake Co., 9 mi SE Fort Rock, 3. vii. 1971, G. Steyskal (2 ♂, USNM), UT: Timpanogos Mt., 25. vi. 1940, A. L. Melander (1 ♂, USNM), Salt Lake Laboratory, 22. viii. 1913, L. P. Rockwood (1 ♂ 2 ♀, USNM), Salt Lake, C. N. Ainslie, 15. vii. 1912, reared from Agromyza mines (3 ♂ 3 ♀, USNM), Salt Lake, C. N. Ainslie, reared from alfalfa leaf mines, " May 11 " (1 ♂, USNM), Salt Lake, C. N. Ainslie, 2. ix. 1912, reared from alfalfa mine (1 ♀, USNM), Salt Lake, T. H. Parks (1 ♂ 2 ♀, USNM), WA: Eusum, 28. vi. 1917, A. L. Melander (1 ♂, USNM). Also see Lonsdale (2011, 2017).	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
4D1400B63540FAE7866891C30D3507B8.taxon	description	Figs 111, 112, 636 - 639	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
4D1400B63540FAE7866891C30D3507B8.taxon	description	Description (Figs 111, 112). Wing length 1.2 - 1.7 mm (♂), 1.5 - 1.9 mm (♀). Length of ultimate section of vein M 4 divided by penultimate section: 1.7 - 3.1. Eye height divided by gena height: 2.1 - 3.0. Scutum with light greyish pruinosity, rarely subshiny. First flagellomere rounded or with slight anterodorsal angle. Chaetotaxy: Two ori; two ors. Acrostichal setulae in two to four scattered rows. Colouration: Head yellow with back of head above foramen, ocellar tubercle, clypeus, and posterolateral margin of frons (not reaching base of outer vertical seta) brown. Scutum with complete lateral yellow stripe. Scutellum yellow with lateral corner brown. Metanotum brown with sclerites lateral to scutellum paler, sometimes with katatergite entirely yellow. Pleuron yellow with large ventral spots on katepisternum (not including seta base) and meron, and anepisternum and anepimeron with small anteroventral spots. Calypter margin and hairs brownish. Legs yellow with base of fore coxa sometimes brown, fore femur sometimes with dorsal mottling, base of mid and hind femora sometimes partially brown dorsally, and tibiae and tarsi brown (paler on fore legs). Abdomen brown with lateral margin broadly yellow and posterior margin of tergites (1) 2 - 4 yellow; tergites 2 - 4 sometimes with yellow posteromedial emargination (sometimes forming complete line on tergite 4) and tergite 6 with anteromedial spot; epandrium brown, often with dorsum light brown to yellow; tergite 2 sometimes yellow along midline in females; if male abdomen entirely brown (some South American material), only two rows of acrostichal setulae present and most of anepisternum brown. Genitalia: (Figs 636 - 639) Epandrium with one posterodistal spine. Surstylus subtriangular, apex slightly truncated and with small inner-distal spine. Basiphallus sclerotised along left lateral margin and partially along dorsal margin; largely recessed distally where swollen section of ejaculatory duct dominates. Paraphallus narrow, weakly sclerotised. Hypophallus small, narrow. Mesophallus narrow, pale, slightly longer than wide and weakly fused to distiphallus. Distiphallus small, cup-shaped with subapical constriction; apex with characteristic minute triangular-shaped sclerotisations. Ejaculatory apodeme small with base curved and apex relatively narrow and clear; sperm pump with transverse sclerotisation.	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
4D1400B63540FAE7866891C30D3507B8.taxon	distribution	Distribution. Widespread throughout the Americas, Europe, and Asia.	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
4D1400B63540FAE7866891C30D3507B8.taxon	materials_examined	Additional material examined. Bermuda. Devonshire, Par., Devonshire Marsh, 20. ix. 1987, D. J. Hilburn, N. E. Woodley (1 ♂, USNM), Pembroke Par., Admirality House Park, 15. xi. 1987, D. J. Hilburn, N. E. Woodley (1 ♂, USNM). USA. CA: Imperial Co., Algodones Dunes, along Rte. 78, 7. iii. 2017, em. 19. iii. 2017, C. S. Eiseman, ex Abronia villosa, # CSE 3250, CNC 940076 (1 ♂, CNC), DE: Gumboro, 2. viii. 1952, C. Sabrosky (1 ♀, USNM), Rehoboth, 2. viii. 1941, A. L. Melander (1 ♀, USNM), FL: Lake Co., Alexander Springs, 26. iii. 2013, em. 12 - 20. iv. 2013, C. S. Eiseman, ex Hydrocotyle verticillata, # CSE 275, CNC 358471 (1 ♂, CNC), MD: Laurel, Chrysanthemum, 31. i. 1962 (10 ♂ 18 ♀, USNM), Montgomery Co., Colesville, 28. v. 1977 (1 ♀, USNM), Colesville, Malaise trap, W. W. Wirth, 26. vi. 1977 (2 ♀, USNM), 30. vi. 1977 (1 ♀, USNM), 4. ix. 1977 (1 ♂, USNM), MI: Mio, 29. v. 1937, H. Milliron (1 ♀, USNM), NC: Scotland Co., Laurinburg, St. Andrews University, 2. vi. 2015, em. 20. vi. 2015, T. S. Feldman, ex Trifolium repens, # CSE 1633, CNC 564626 (1 ♂, CNC), NV: Clark Co., Charleston Peak, Kyle Canyon, ca 2200 m, 14. vii. 1966, P. H. Arnaud, Jr. (1 ♀, CASC), NY: Orange Co., Florida, L. L. Pechuman, reared October, leaf miner on celery (1 ♂, USNM), OH: Wooster, 10. v. 1972, ex. celery leaves, J. P. Sleesman (3 ♂ 3 ??, USNM), VA: Northampton Co., Kiptopeke, 4 - 6. x. 1986, W. E. Steiner et al., Malaise trap, dunes between cliff and beach (3 ♀, USNM). Also see Lonsdale (2011, 2017).	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
CB8268F8B2F85EDCC9F560C8A512D0F4.taxon	description	Figs 116, 117, 645 - 652	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
CB8268F8B2F85EDCC9F560C8A512D0F4.taxon	description	Description (Figs 116, 117, 652). Wing length 1.7 - 2.2 mm (♂), 1.8 - 2.0 mm (♀). Length of ultimate section of vein M 4 divided by penultimate section: 1.9 - 2.5. Eye height divided by gena height: 2.5 - 3.4. Face and centre of frons soft. Fronto-orbital plate visible laterally and slightly projecting anteriorly. Clypeus broad anteriorly. Notum subshiny. Chaetotaxy: Two to three ori; two ors. Postocellar and ocellar setae as long as ors. Orbital setulae dark, pronounced and reclinate. Four dorsocentrals, one presutural, decreasing in length anteriorly with anterior two subequal. Acrostichal setulae in four scattered rows. Colouration: Head light brown to dirty yellow, with clypeus, palpus, back of head, face, and lower margin of gena (very dark and shiny) brown; lunule darker ventrally, broad and shallow; frons yellow with fronto-orbital plate dark brown; first flagellomere brownish to brown with dorsum darker and base yellowish (paler on inner surface); entire antenna dark brown in USA specimens. Scutum with complete yellow lateral stripe. Scutellum and metanotum dark brown. Pleuron brown with sutures yellowish (widest on anepimeron). Calypter margin and hairs dark. Legs brown with femora apices light brown. Genitalia: (Figs 645 - 651) Epandrium with single spine (sometimes two on one side). Surstylus without spine, completely fused to epandrium. Basiphallus sclerotised on dorsal and left lateral surfaces, and with narrow sclerotised extension on right lateral surface; left and right apical margins produced into narrow extensions. Hypophallus membranous. Mesophallus cylindrical, approximately as long as, but narrower than swollen section of ejaculatory duct. Paraphallus narrow basally but broadly expanded apically and with inner margin arched inwards and narrowly fused to ventral suture on mesophallus. Distiphallus 1 / 2 length of mesophallus, darker than mesophallus, and entirely bifid with halves cup-shaped, tapering to base and with several minute spinules on inner surface. Ejaculatory apodeme with narrow blade expanding from short stem; sperm pump with hemispherical sclerotisation. Variation: Dorsal margin of anepisternum yellow in Canadian specimens. USA specimens with fore coxa yellow and scutellum sometimes mostly to entirely dark brown.	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
CB8268F8B2F85EDCC9F560C8A512D0F4.taxon	distribution	Distribution. Canada: AB. USA: MD, MS, NC, NY, OH, PA.	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
CB8268F8B2F85EDCC9F560C8A512D0F4.taxon	materials_examined	Additional material examined. USA. OH: Delaware Co., Sunbury, Monkey Hollow Rd., 17. ix. 2014, em. 8. x. 2014, C. S. Eiseman, ex Viola pubescens, # CSE 1395, CNC 384890 (1 ♀, CNC), em. 23. iii. 2015, # CSE 1482, CNC 654470 (1 ♂, CNC). Also s ee Lonsdale (2017).	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
35CBDD07B457D73209D170D6BA234BA9.taxon	description	Figs 257 - 260	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
35CBDD07B457D73209D170D6BA234BA9.taxon	description	Description. Wing length 2.8 - 3.2 mm (♂), 3.2 - 3.9 mm (♀). Length of ultimate section of vein M 4 divided by penultimate section: 0.6 - 0.9. Eye height divided by gena height: 3.1 - 5.6. Clypeus broadly rounded. Ocellar triangle and fronto-orbital plate subshiny, ill-defined, extending slightly past posterior ori. Fronto-orbital plate slightly visible laterally (more pronounced in male). Gena rounded, highest behind midpoint of eye. Chaetotaxy: Four ori with anterior seta strongly reduced to absent, and posterior seta sometimes appearing as third ors; two ors. Orbital setulae erect, in two, sometimes three irregular rows, sometimes with several reclinate, but becoming proportionately more proclinate anteriorly; widely spaced from eye margin. Eye pilose dorsomedially. Two dorsocentral setae. Acrostichal setulae in eight irregular rows. Mid tibia with two posteromedial setae. Colouration: Body, including halter, dark brown in base colour. Gena, parafacial, distal margin of pedicel and inner-distal margin of fronto-orbital plate paler. Notum with faint greenish metallic shine (faded anteriorly). Calypter margin and hairs white. Abdomen metallic green. Genitalia: (Figs 257 - 260) Epandrium shallow dorsally, with small posterodistal spine. Surstylus ~ 3 / 5 length distal region of epandrium, with broad distal margin shallowly angled; with several dense, irregular rows of tubercle-like setae on inner surface. Metepiphallus with several small spines on thickened venter and broad spinulose ridge on thickened lateral section. Proepiphallus short and U-shaped. Basiphallus U-shaped with dorsum broad, separated from mesophallus by several times its own height. Distiphallus relatively small with base not exceeding that of mesophallus; ventrolateral tubules small, inconspicuous; swollen basal section longer than flatter plate-like distoventral region, which has sides gradually narrowed.	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
35CBDD07B457D73209D170D6BA234BA9.taxon	distribution	Distribution. USA: DE *, MD *, NY, OH.	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
35CBDD07B457D73209D170D6BA234BA9.taxon	materials_examined	Additional material examined. USA. DE: Wilmington, 9. vi. 1974 (2 ♂, UDCC), MD: Cabin John, 20. vi. 1931, A. L. Melander (1 ♂, USNM), Montgomery Co., Bethseda, 28. iv. 1968, G. Steyskal (1 ♂, USNM), 4 mi SW of Ashton, 3. vi. 1984, G. F. and J. F. Hevel (1 ♂, USNM), OH: 3 mi. E Streetboro, 20. iii. 1970, Biol Note No. 17 - 1, D. Witwer (1 ♂ [with puparium], USNM), Biol Note No. 17 - 6 (1 ♂ [with puparium], USNM), Biol Note No. 17 - 11 (1 ♂ [with puparium], USNM), Biol Note No. 17 - 12 (1 ♀ [with puparium], USNM), Biol Note No. 17 - 13 (1 ♂ [with puparium], USNM).	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
0D86DB64A207FAC8C47CB30556D18A77.taxon	description	Figs 261 - 263	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
0D86DB64A207FAC8C47CB30556D18A77.taxon	description	Description. As described for M. eoflacensis, except as follows: three ori; wing length 2.6 - 3.0 mm (♂); fronto-orbital plate ending at anterior ors or posterior ori; eye height divided by gena height 3.8 - 4.8; head very dark brown, without slightly paler brown regions excluding very narrow inner margin of fronto-orbital plate; notum more evenly greenish and with matching, but brighter abdomen; VA male with additional medial dorsocentral on left side as long as anterior dorsocentral; mid tibia with one long and one shorter seta posteromedially; dorsomedial bulge on distiphallus less prominent, and seen laterally, gradually tapering to apex, not abruptly narrowed; seen ventrally, distiphallus with stouter, more prominent narrow plates flanking distomedial tube (Figs 262, 263).	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
0D86DB64A207FAC8C47CB30556D18A77.taxon	etymology	Etymology. The specific name is a patronym for the collector of the holotype.	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
0D86DB64A207FAC8C47CB30556D18A77.taxon	distribution	Distribution. USA: IN, VA.	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
D70EF9192F909A0AB18D5A4A344761D4.taxon	description	Figs 52, 53, 264 - 268	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
D70EF9192F909A0AB18D5A4A344761D4.taxon	description	Description (Figs 52, 53). Wing length 1.9 - 2.4 mm (♂), 2.2 - 2.5 mm (♀). Length of ultimate section of vein M 4 divided by penultimate section: 0.6 - 0.9. Eye height divided by gena height: 3.9 - 5.6. Gena relatively broad and curved anteriorly with highest point anterior to midpoint of eye. Clypeus slightly truncated to rounded anteromedially. Face with narrow, shallow ridge. Fronto-orbital plate sometimes slightly to moderately swollen medially, narrowed anteriorly and with setae slightly inset (similar to species in M. virens group). Ocellar triangle short, nearly equilateral and with anterior point open. Chaetotaxy: Two to four ori, but if only two ori, then ori sometimes widely spaced as in M. virens group; two ors. Orbital setulae short, in two to three irregular rows, erect to reclinate with inner row partially inclinate. Eye pilose dorsomedially. Two dorsocentral setae. Acrostichal setulae in eight irregular rows. Mid tibia with two posteromedial setae. Colouration: Body, including halter, dark brown in base colour. Ocellar triangle and fronto-orbital plate sometimes light brown. Scutum brown with sometimes indistinct greenish shine. Calypter margin and hairs white. Abdomen metallic green, or less commonly, coppery-green. Genitalia: (Figs 264 - 268) Epandrium with small posterodistal spine. Metepiphallus with several clustered spine-like ventral projections and numerous narrow lateral ridges. Proepiphallus V-shaped. Basiphallus U-shaped. Distiphallus separated from phallophorus by slightly less than length of basiphallus; base of distiphallus and mesophallus level; distiphallus narrow, long, with sides parallel, with short, thick dorsomedial lobe, and one pair of internal spinulose patches; distolateral plate forming conspicuous, dark oblique band. Ejaculatory apodeme subovate with stem reduced and margin clear.	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
D70EF9192F909A0AB18D5A4A344761D4.taxon	distribution	Distribution. Canada: MB *, NB *, ON, QC. USA: AZ, CA, CO, DE *, GA *, IA *, IL *, IN *, MA, MD, MO, NC *, NH *, NJ *, NM *, NY, PA *, TN *, VA, WV *.	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
D70EF9192F909A0AB18D5A4A344761D4.taxon	materials_examined	Additional material examined. Canada. MB: Aweme, 20. viii. 1917, N. Criddle, CNC 358381 (1 ♀, CNC), 27. viii. 1917, CNC 358382 (1 ♀, CNC), NB: Pokeshaw, 47 ° 47 ' N, 65 ° 14 ' W, 27 - 30. vi. 2011, S. E. Brooks, Malaise trap, CNC 423058 (1 ♂, CNC), Saint-Jacques NB Botanical Garden, 47 ° 26 ' 20 " N, 68 ° 23 ' 39 " W, 27. vii. 2013, O. Lonsdale, CNC 358505 (1 ♀, CNC), ON: Ottawa, 20. vi. 1954, D. Cobb, CNC 358325 (1 ♂, CNC), St. Lawrence Is. Nat. Park, Grenadier I. Centre, 14. viii. 1975, R. J. McMillan, Malaise trap, Code 2 - 263 D, CNC 358379 (1 ♀, CNC), 21. viii. 1975, Code 2 - 278 S, CNC 358380 (1 ♀, CNC), Thornhill, 30. v. 1964, J. R. Vockeroth, CNC 358326 (1 ♂, CNC), QC: St. Ann-Perade, 6. viii. 1930, A. L. Melander (1 ♂, USNM), Montreal, 8. viii. 1950, A. L. Melander (1 ♂, USNM). USA. AZ: Chiricahua Mts., S. W. R. S., 5400 ', 30. iv. 1979, K. N. Barber (2 ♂, DEBU), CA: Victorville, 16. v. 1955, W. R. M. Mason, CNC 358467 (1 ♂, CNC), " UpStaAnaRiv ", Cienaga, 28. v. 1948, J. L. Sperry (1 ♀, USNM), Vacaville, 19. iv. 1949, A. T. McClay (1 ♀, USNM), Davis, 14. vi. 1953, E. I. Schlinger (1 ♂, USNM), Toulumne Co., Summit Sonora Pass, 9. viii. 1948, sweeping Salix eastwoodiae Ckll., Lot No. 108 - 1, K. E. Frick (3 ♂, USNM), Summit Sonora Pass, 10. viii. 1948, Lot No. 116 - 1, K. E. Frick (1 ♀, USNM), San Diego Co., Warmer Spr., 30. viii. 1955, E. I. Schlinger (1 ♂, USNM), Berkeley, 9. vii. 1917, J. M. Aldrich (1 ♂, USNM), 8. vii. 1917 (2 ♂, USNM), Hemet Lake, 13. vi. 1961, 500 ', J. G. Chillcott, CNC 358533 (1 ♂, CNC), CO: Boulder, Valmont Butte, 1615 m, 1. vi. 1961, J. R. Stainer, CNC 358378 (1 ♀, CNC), Idaho Springs, 5 mi SW, 2621 m, 27. v. 1961, J. G. Chillcott, CNC 358324 (1 ♂, CNC), Mt. Vernon Cn. nr. Golden, 2194 m, 31. vii. 1961, C. H. Mann, CNC 358468 (1 ♂, CNC), DC: Washington, " C 1 Aug 1956 ", P. H. Arnaud Jr. (1 ♂, USNM), Washington, " viii. 5 ", J. M. Aldrich (1 ♀, USNM), Washington, 17. viii. 1915, A. L. Melander (1 ♂ 1 ♀, USNM), Chain Bridge, 8. v. 1928, J. M. Aldrich (1 ♀, USNM), DE: Dover, 24. vi. 1939, A. L. Melander (1 ♂, USNM), Newark, 31. v. 1974 (1 ♀, UDCC), Newark, 25. viii. 1974, D. Buntin (1 ♀, UDCC), GA: Pine Mt., 1 mi North, 12. vii. 1957, W. R. Richards, CNC 358347 (1 ♀, CNC), Rabun Bald, 9. viii. 1957, W. R. Richards, CNC 358355 - 358357 (3 ♀, CNC), Rabun Co., 13. vii. 1957, W. R. Richards, CNC 358354 (1 ♀, CNC), Warwoman Crk., 4. vi. 1957, W. R. Richards, CNC 358358 (1 ♀, CNC), IA: Ames, 19. vi. 1947, A. R. Brooks, CNC 358461 (1 ♀, CNC), 28. vi. 1947, CNC 358458 (1 ♂, CNC), IL: Champaign, 1. vi. 1953, J. F. McAlpine, CNC 358460 (1 ♀, CNC), 22. ix. 1956, CNC 358459 (1 ♂, CNC), IN: LaFayette, vi- 10, J. M. Aldrich (1 ♂, USNM), vii- 10 (1 ♂, USNM), x- 14 (1 ♀, USNM), MA: New Bedford, 30. viii. 1896, Mass, A. L. Melander (1 ♂, USNM), Horse Neck Beach, 8. viii. 1896, Hough, A. L. Melander (1 ♂, USNM), Dennisport, C. Cod, 1. viii. 1964, J. R. Vockeroth, CNC 358535 (1 ♀, CNC), Franklin Co., Northfield, 276 Old Wendell Rd., 20. viii. 2016, mating on Erigeron annuus, # CSE 2916, CNC 654071, CNC 654072 (1 ♂ 1 ♀, CNC), MD: Plummers Isl., 20. vii. 1913, R. C. Shannon (1 ♀, USNM), Talbot Co., McDaniel (Wades Point), 19 - 21. ix. 1986, Malaise trap in salt marsh with flowering Baccharis, W. E. Steiner (2 ♀, USNM), Fairfax Co., Dead Run, 14. v. 1914, R. C. Shannon (1 ♀, USNM), Montgomery Co., Colesville, W. W. Wirth, 27. vii. 1976 (1 ♀, USNM), 28. vii. 1976 (2 ♀, USNM), Bethseda, C. W. Sabrosky, 24. vii. 1961 (1 ♀, USNM), Bethseda, G. C. Steyskal, 10. vii. 1970 (1 ♂, USNM), 16. vii. 1979 (1 ♂, USNM), 24. viii. 1975 (4 ♂ 1 ♀, USNM), 4 mi SW of Ashton, G. F. and J. F. Hevel, 1. ix. 1981, Malaise trap (1 ♂ 1 ♀, USNM), 24. vii. 1982 (3 ♀, USNM), 15. viii. 1982 (2 ♀, USNM), 19. v. 1985 (1 ♀, USNM), 29. v. 1986 (2 ♀, USNM), 31. v. 1986 (1 ♀, USNM), 5. vi. 1986 (1 ♀, USNM), P. G. Co, Camp Springs, Malaise trap, G. F. Hevel, 28. viii. 1979 (1 ♀, USNM), 6. ix. 1979 (1 ♀, USNM), 14. ix. 1979 (1 ♀, USNM), 15. ix. 1979 (2 ♀, USNM), NC: Highlands, 3800 ', 21. v. 1957, J. R. Vockeroth, CNC 358534 (1 ♂, CNC), Cashiers, 12. vii. 1957, W. R. Richards, CNC 358351 - 358353 (3 ♀, CNC), Clingman's Dome, 5. viii. 1957, W. R. Richards, CNC 358350 (1 ♀, CNC), Highlands, Horse Cove, 30. vii. 1957, W. R. Richards, CNC 358349 (1 ♀, CNC), Highlands, Little Bear Pen Mt., 5. viii. 1957, W. R. Richards, CNC 358348 (1 ♀, CNC), Highlands, 14. vii. 1957, W. R. Richards, CNC 358331 (1 ♂, CNC), 16. viii. 1957, CNC 358359, CNC 358360 (2 ♀, CNC), 1158 m, 17. viii. 1957, J. G. Chillcott, CNC 358344 (1 ♀, CNC), 18. vii. 1957, J. G. Chillcott, CNC 358339 (1 ♂, CNC), 1158 m, 21. v. 1957, J. R. Vockeroth, CNC 358328 (1 ♂, CNC), 21. vii. 1957, W. R. Richards, CNC 358327, CNC 358329, CNC 358330 (3 ♂, CNC), 1158 m, 21. viii. 1957, J. G. Chillcott, CNC 358343 (1 ♀, CNC), W. R. Richards, CNC 358361 - 358366 (6 ♀, CNC), 22. viii. 1957, W. R. Richards, CNC 358367 - 358370 (4 ♀, CNC), 1158 m, 23. viii. 1957, J. G. Chillcott, CNC 358338 (1 ♂, CNC), W. R. Richards, CNC 358371 (1 ♀, CNC), 27. viii. 1957, W. R. Richards, CNC 358372, CNC 358373 (2 ♀, CNC), 29. vii. 1957, W. R. Richards, CNC 358332 (1 ♂, CNC), 1158 m, 3. vi. 1957, J. R. Vockeroth, CNC 358345, CNC 358346 (2 ♀, CNC), 5. viii. 1957, J. G. Chillcott, CNC 358333 - 358337, CNC 358340 - 358342 (5 ♂ 3 ♀, CNC), Macon Co., Wayah Gap, 1249 m, 29. vii. 1957, J. G. Chillcott, CNC 358374 (1 ♀, CNC), NH: Gorham, 15. vii. 1958, J. R. Vockeroth, CNC 358462 (1 ♀, CNC), Fabyan, 30. vi. 1936, A. L. Melander (1 ♂, USNM), NJ: Hemlock Falls, Aug, A. L. Melander (1 ♀, USNM), NM: Grant Co., ca. 20 mi n. Silver City, 32 ° 57 ' N, 108 ° 10 ' W, 7100 ', meadow, creek, 11. viii. 2007, J. D. King, CNC 358528 (1 ♂, CNC), NY: Trudeau, 15. vii. 1977, S. W. T. Batra (1 ♂, USNM), Long Island, Cold Spring Harbor, July, A. L. Melander (1 ♂, USNM), PA: Susquehanna Co., Rushboro, 12. v. 1964, J. G. Chillcott, CNC 358465 (1 ♂, CNC), Chester Co., Toughkenamon, Stroud Res. Ctr., 39 ° 51 ' 37 ", 75 ° 46 ' 58 ", 14. ix. 2007, E. Lake (2 ♂, UDCC), nr. Toughkenamon, Stroud Res. Ctr., N 39 51 37.2, W 75 46 58.2 (1 ♀, UDCC), 14. ix. 2007, C. R. Bartlett (1 ♀, UDCC), Oxford, 3. ix. 2000, Malaise trap, R. L. Snyder (1 ♀, UDCC), TN: Knoxville, 20. v. 1957, J. R. Vockeroth, CNC 358375 (1 ♀, CNC), VA: Augusta Co., Reed's Gap, 792 m, 7. iv. 1962, J. R. Vockeroth, CNC 358466 (1 ♂, CNC), Blacksburg, 28. v. 1962, J. G. Chillcott, CNC 358376 (1 ♀, CNC), Montgomery Co., Christiansburg, ex flowers Umbelliferae, 21. vi. 1962, J. G. Chillcott, CNC 358377 (1 ♀, CNC), Montomery Co., Longshop, 548 m, 29. v. 1962, J. R. Vockeroth, CNC 358323 (1 ♂, CNC), Arlington 4 - mile Run, 18. v. 1977, W. N. Mathis (1 ♀, USNM), Veitch, 9. v. 1912, J. R. Malloch (1 ♀, USNM), Great Falls, " vi- 1 ", G. E. Quinter (1 ♀, USNM), Falls Church, Holmes Run, W. W. Wirth, 27. vii. 1960 (1 ♂, USNM), 6. vi. 1961, light trap (1 ♂, USNM), Fairfax Co., Alexandria, Four Mile Run, 6. ix. 1976, W. N. Mathis (1 ♂, USNM), Page Co., 7 mi W of Lunay, 8. vii. 1978, G. F. Hevel (2 ♀, USNM), WV: Greenbrier Co., Charmco, 6. ix. 1983, G. F. and J. F. Hevel (1 ♂, USNM), WV: Thermopolis, 30. viii. 1940, A. L. Melander (1 ♂, USNM).	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
4268CDBC85367ACB2AFC06DE55203765.taxon	description	Figs 269 - 271	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
4268CDBC85367ACB2AFC06DE55203765.taxon	description	Description. Wing length 2.7 - 3.1 mm (♂), 2.9 - 3.6 mm (♀). Length of ultimate section of vein M 4 divided by penultimate section: 0.7. Eye height divided by gena height: 2.2 - 3.0. Gena strongly angled, highest posteriorly. Fronto-orbital plate and parafacial projecting and conspicuous, obscuring base of antenna (seen laterally) and continuing under eye as cheek; fronto-orbital plate well-developed, setae slightly inset. Clypeus strongly bowed laterally with anterior margin shallowly rounded to slightly truncated medially. Ocellar triangle subshiny and ill-defined. Chaetotaxy: Four or five ori; two ors. Ocellar setulae short and slightly proclinate, with setulae on posterior 1 / 3 sometimes reclinate. Orbital setulae short, in three rows, reclinate. Eye bare. Two dorsocentral setae. Acrostichal setulae in ten irregular rows. Three very strong anepisternal setae. Mid tibia with two posteromedial setae. Colouration: Body, including halter, dark brown in base colour, sometimes with faint blue or greenish shine evident on notum. Parafacial, antenna and gena sometimes paler. Calypter margin and hairs brown. Abdomen with light coppery, greenish, or bluish shine (only coppery observed in this study). Genitalia: (Figs 269 - 271) Epandrium with small posterodistal spine. Surstylus rounded with short setae along inner-distal margin and shorter tubercle-like setae in two to three irregular rows on inner surface. Metepiphallus very dark with serrated ventral ridges and two stout coalescing lateral ridges. Proepiphallus thick and globular. Basiphallus forming complete ring. Distiphallus separated from phallophorus by ~ 1.5 x length of basiphallus; distiphallus and mesophallus with bases level; distiphallus with long spinulose internal structures and thin distal projection subequal in length to basal section of distiphallus, which is relatively flat and abruptly ending at midpoint (seen ventrally), with only narrow distoventral plate continuing apically. Ejaculatory apodeme well-developed, typical of Melanagromyza, with blade relatively narrow.	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
4268CDBC85367ACB2AFC06DE55203765.taxon	distribution	Distribution. USA: CA, CO, IL, IN, KS, MA, MD *, MI, ND, NY.	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
4268CDBC85367ACB2AFC06DE55203765.taxon	materials_examined	Additional material examined. USA. IN: Lafayette, " v- 20 ", swept from wint. wheat (1 ♀, USNM), Evansville, 7. v. 1914, swept from wint. wheat, J. M. Aldrich (1 ♀, USNM), KS: Manhattan, 4. v. 1932, D. A. Wilbur (1 ♀, USNM), Manhattan, C. W. Sabrosky, 20. iv. 1934 (3 ♂, USNM), 25. iv. 1934 (1 ♀, USNM), MD: Montgomery Co., 4 mi SW of Ashton, 27. v. 1984, G. F. and J. F. Hevel (1 ♂, USNM), Bethseda, 3. vi. 1972, G. C. Steyskal (1 ♀, USNM), MI: St. Joseph, 30. v. 1938, C. W. Sabrosky (1 ♂, USNM).	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
7319F6ACBAA2532DF7D4B5EE125C748C.taxon	description	Figs 272 - 276	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
7319F6ACBAA2532DF7D4B5EE125C748C.taxon	description	Description. Wing length 3.4 - 3.9 mm (♂), 4.4 - 5.0 mm (♀). Length of ultimate section of vein M 4 divided by penultimate section: 0.6 - 0.8. Eye height divided by gena height: 2.8 - 3.4. Male first flagellomere slightly enlarged, rounded, with longer hairs past base. Fronto-orbital plate and parafacial visible laterally, broadly rounded, and continuing under eye as very narrow cheek; fronto-orbital plate well-developed, setae slightly inset. Ocellar triangle long and narrow with anterior point open. Gena relatively short, slightly angled upwards anteriorly. Clypeus broadly rounded with anterior margin slightly thickened. Scutum with faint, thin longitudinal pruinose stripes medially. Chaetotaxy: Three or four ori; two ors (one in CNC female paratype). Orbital setulae in three irregular rows, reclinate to erect, sometimes proclinate anteriorly. Ocellar setulae erect. Eye bare. Three dorsocentrals, with anterior seta close to second and ~ 3 / 5 length. Acrostichal setulae in ten irregular rows. Mid tibia with two posteromedial setae. Colouration: Body, including halter, dark brown in base colour. Head nearly black and with greenish tint. Notum with greenish shine; anterolateral margin lighter brown with postpronotum particularly pale and with yellowish spots. Calypter margin and hairs white. Abdomen brown with green shine, sometimes becoming more blue posteriorly or with colour most pronounced medially and on posterior 1 / 2 of tergites. Genitalia: (Figs 272 - 276) Epandrium without small posterodistal spine. Surstylus shallow and subtriangular, with long marginal setae and several shorter, stouter setae. Hypandrium broad and stout with lobe thick. Metepiphallus smooth; lateral portion nearly divided into separate sclerite and with two crossing ridges. Proepiphallus minute. Basiphallus U-shaped with ends tapered and dorsum very broad and ill-defined with thick transverse medial ridge. Distiphallus large, bulbous, close to phallophorus, tapered apically; with long, thin dorsomedial process; ventrolateral tubules strongly arched, level with mesophallus; internal surface shallowly textured and outer surface minutely tuberculate dorsally.	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
7319F6ACBAA2532DF7D4B5EE125C748C.taxon	distribution	Distribution. USA: DC *, IL, IN, MD, VA *.	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
7319F6ACBAA2532DF7D4B5EE125C748C.taxon	materials_examined	Additional material examined. USA. DC: Rock Creek Park, 18. vii. 1933, J. M. Aldrich (1 ♂ 2 ♀, USNM), Rock Creek Park, 14. viii. 1931, on Dianthera americana (1 ♂, USNM), IN: Lafayette, J. M. Aldrich, swept from Dianthera americana, 11. v. 1915 (1 ♂, USNM), 11. vi. 1915 (3 ♂, USNM), 18. vi. 1915 (2 ♂ 2 ♀, USNM), 21. viii. 1916 (1 ♂, USNM), Lafayette, J. M. Aldrich, 18. viii. 1916 (1 ♂, USNM), 10. vi. 1915 (4 ♂ 5 ♀, USNM) 11. vi. 1915 (1 ♂, USNM), vi-iv. 1915 (1 ♀, USNM), 21. viii. 1916 (1 ♀, USNM), Lafayette, on Dianthera 26. vi. 1915 (2 ♂, USNM), 29. vi. 1916 (1 ♂, USNM), " vii- 14 " (1 ♂, USNM), Lafayette, A. L. Melander, " vi- 2 " (3 ♂ 1 ♀, USNM), MD: Plummers Isl., 6. vii. 1963, G. Steyskal (1 ♂ 1 ♀, USNM), Plummers Isl., K. V. Kromberin, 3. viii. 1962 (1 ♂, USNM), 11. vii. 1962 (4 ♂ 1 ♀, USNM), 9. vi. 1963 (7 ♂ 2 ♀ 1?, USNM), 5. viii. 1962 (1 ♂, USNM), 7. viii. 1962 (1 ♂ 1 ♀, USNM), 1. ix. 1962 (3 ♂ 6 ♀, 2?, USNM), 31. vii. 1962 (2 ♂, USNM), VA: Fairfax Co., Potomac River at Scott Run, 7. vi. 1955, C. W. Sabrosky (2 ♀, USNM).	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
335905908D997ACB56216DE8681945F7.taxon	description	Figs 277 - 280	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
335905908D997ACB56216DE8681945F7.taxon	description	Description. Wing length 2.6 - 2.7 mm (♂). Length of ultimate section of vein M 4 divided by penultimate section: 0.6 - 0.9. Eye height divided by gena height: 5.3. Clypeus broadly rounded. Ocellar triangle and fronto-orbital plate subshiny to slightly matt with triangle reaching level of mid ori or nearly reaching lunule (tapering anteriorly), and fronto-orbital plate slightly visible laterally. Gena rounded, highest behind midpoint of eye. Chaetotaxy: Three ori (sometimes four on one side); two ors. Orbital setulae in two irregular rows, erect to reclinate. Eye pilose dorsomedially, hairs relatively dense. Two dorsocentral setae. Acrostichal setulae in eight irregular rows. Mid tibia with one posteromedial seta (shorter than width of tibia). Colouration: Body, including halter, dark brown in base colour. Gena, parafacial, distal margin of pedicel and inner-distal margin of fronto-orbital plate paler. Notum faintly greenish (faded anteriorly), and femora sometimes also slightly reflective. Calypter margin and hairs white. Abdomen with bluish (MD-Bethseda), greenish (IN, PA) or coppery shine (MD-Plummers Isl.). Genitalia: (Figs 277 - 280) Epandrium with small posterodistal spine. Metepiphallus with ventral surface dark and with short serrated ridge; lateral margin strongly ridged and nearly separate. Proepiphallus narrow and V-shaped with medial desclerotisation. Hypandrium stout, subtriangular and with small apical process. Basiphallus short and U-shaped; space between basiphallus and distiphallus separated by slightly less than height of basiphallus (slightly more in Lewiston, PA male, illustrated here). Base of mesophallus slightly exceeding that of distiphallus. Distiphallus with spinulose pad along inner-dorsal margin; with thicker basal section ending in bulge before much narrowed apical 1 / 2; base of distiphallus in IN male straighter and slightly narrower. Ejaculatory apodeme similar to that of M. subvirens, with distal margin darker in holotype.	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
335905908D997ACB56216DE8681945F7.taxon	etymology	Etymology. The specific name indicates similarity to M. osoflacensis Spencer, while indicating is relative eastern distribution (eos - Gr. for east).	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
335905908D997ACB56216DE8681945F7.taxon	distribution	Distribution. USA: IN, MD, PA, VA.	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
335905908D997ACB56216DE8681945F7.taxon	materials_examined	Additional material examined. USA. VA: Blacksburg, 2100 ', 1. vi. 1962, J. G. Chillcott (1 ♂ [only wing and genitalia remaining], CNC).	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
40077A0BC928EA32F72F62AE1B269200.taxon	description	Figs 54, 55, 281 - 284	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
40077A0BC928EA32F72F62AE1B269200.taxon	description	Description (Figs 54, 55). Wing length 3.6 - 3.9 mm (♂), 3.1 - 3.4 mm (♀). Length of ultimate section of vein M 4 divided by penultimate section: 0.6 - 0.7. Eye height divided by gena height: 2.4 - 4.9. Gena angled dorsally on anterior 1 / 2, highest near midpoint. Fronto-orbital plate and parafacial broadly visible laterally, continuing under eye as distinct cheek; fronto-orbital plate well-developed, setae slightly inset. Clypeus narrowed and slightly truncated medially, sides bowed outwards. Sides of ocellar triangle shallowly concave. Parafacial and ocellar triangle subshiny. Chaetotaxy: Three or four ori, sometimes with slightly larger gap between anterior two setae; two ors. Orbital setulae dense, in several irregular rows, reclinate to erect. Ocellar setulae erect. Eye broadly pilose dorsomedially. Third dorsocentral (variable from slightly longer than setulae to 2 / 3 length of second dc) sometimes present directly in front of second dorsocentral in male. Acrostichal setulae in eight irregular rows. Mid tibia with two posteromedial setae. Colouration: Body, including halter, dark brown in base colour. Scutum shiny with faint greenish reflection. Calypter margin and hairs white. Abdomen (excluding tergite 1) sometimes coppery, with light blue shine usually evident posteriorly. Genitalia: (Figs 281 - 284) Epandrium with small posterodistal spine. Hypandrium with apex strongly produced as apodeme. Metepiphallus with serrated ridges, one pair of longer ventral spines, and several overlapping lateral ridges. Proepiphallus V-shaped, narrowly divided medially and with apex upcurved. Basiphallus U-shaped with sides diverging and tips irregular in outline. Distiphallus separated from phallophorus by less than height of basiphallus; high, with spinulose internal structures, apex abruptly truncated, sides subparallel, and with short, thin bifid ventroapical plate; lateral surface of distiphallus with raised plate bearing minute scales and ridges; mesophallus projecting basally from distiphallus and far exceeding basal margin of distiphallus. Variation: Male from Plummers Island differs as follows: two ori; frons with several longitudinal wrinkles on each side of ocellar triangle; wing length 3.5 mm; length of ultimate section of vein M 4 divided by penultimate section 0.5; eye height divided by gena height: 4.8; abdomen with light blue shine; lateral margin of basiphallus less sculptured; lateral plate on dorsal lobe of distiphallus less pronounced, without medial scales. Several specimens from Turkey Run with wing length 3.0 - 3.2 mm (♂), 3.4 mm (♀), abdomen and notum distinctly green with apex of abdomen bluish, and phallus slightly smaller and paler.	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
40077A0BC928EA32F72F62AE1B269200.taxon	distribution	Distribution. USA: MD, SC, VA.	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
40077A0BC928EA32F72F62AE1B269200.taxon	etymology	Etymology. Melanagromyza Gr. glyptos for carved, referring to sculptured outer lateral surface of distiphallus.	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
EABF9AE24814D32E909B9E963041BA30.taxon	description	Figs 285 - 288	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
EABF9AE24814D32E909B9E963041BA30.taxon	description	Description. Wing length 2.3 mm (♂). Female unknown (see variation). Length of ultimate section of vein M 4 divided by penultimate section: 0.7. Eye height divided by gena height: 5.7. Gena highest behind midpoint of eye. Clypeus rounded, relatively thin and with arms slightly converging apically. Fronto-orbital plate and ocellar triangle subshiny. Fronto-orbital plate well-developed, relatively narrow, broadest behind midpoint of eye but not bulging, with swelling very shallow and indistinct; setae inset. Ocellar triangle narrow with anterior point open. Parafacial projecting dorsally. Chaetotaxy: Two broadly separated ori; two ors. Orbital setulae in two irregular rows, becoming sparser posteriorly, erect to slightly proclinate. Ocellar setulae erect. Eye pilose in small spot dorsomedially. Two dorsocentral setae. Acrostichal setulae in eight irregular rows. Mid tibia with two posteromedial setae. Colouration: Body, including halter, dark brown in base colour. Inner margin of fronto-orbital plate (more so anteriorly) and anterior corner of ocellar triangle sometimes light brown. Notum with faint greenish shine posteriorly (blue-green in holotype). Abdomen with green shine (bluer in holotype). Gena, notopleuron, postpronotum, and parafacial sometimes paler. Wing veins pale. Calypter margin and hairs white. Genitalia: (Figs 285 - 288) Epandrium with small posterodistal spine. Surstylus narrow and downturned with discrete group of elongate, apical tubercle-like setae (not as figured in Spencer 1969). Hypandrium broad, short, and thick with long apical process. Metepiphallus with shallow spine and serrated ridge ventrally, and with narrow plate with several coalescing ridges laterally. Proepiphallus V-shaped and upcurved. Basiphallus U-shaped, arms relatively thick. Distiphallus separated from phallophorus by less than height of basiphallus; bases of distiphallus and mesophallus level; distiphallus with dorsomedial swelling, internal surface smooth or with remnants of spinulose internal structure (holotype), and with thick distoventral plate and dorsal processes comprising slightly narrowed apex. Variation: Of the two non-type specimens mentioned in the original description, only the female could be located. This specimen differs as follows: wing length 2.6 mm; eye height divided by gena height 5.1; eye with smaller patch of setulae dorsally adjoining eye; fronto-orbital plate more abruptly bulging at midpoint to ~ 1 / 4 width of frons, setulae in up to three irregular rows; abdomen with green shine. Possibly not conspecific, although most other possible local species to which it may belong in the M. virens group have the head longer towards the dorsum, and none except this species are known from Anthemis.	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
EABF9AE24814D32E909B9E963041BA30.taxon	distribution	Distribution. Canada: ON. USA: MD, PA [?].	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
EABF9AE24814D32E909B9E963041BA30.taxon	materials_examined	Additional material examined. Canada. ON: Ottawa, 25. vii. 1962, J. R. Vockeroth, em. 26. vii. 1962 from cultivated Anthemis (1 ♀, CNC). USA. MD: Ft. Detrich, 29. vi. 1976, SWT Batra, AC- 1 ex. Anthemis cotula L. (1 ♂, USNM).	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
987A3DD155BCEE79E2AE16DF80BAEE70.taxon	description	Figs 289 - 292	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
987A3DD155BCEE79E2AE16DF80BAEE70.taxon	description	Description. Wing length 1.9 - 2.1 mm (♂), 2.1 - 2.3 mm (♀). Length of ultimate section of vein M 4 divided by penultimate section: 0.6 - 0.7. Eye height divided by gena height: 5.0 - 6.3. Gena angulate, highest near midpoint of eye. Clypeus broadly rounded. Fronto-orbital plate and ocellar triangle mostly ill-defined; ocellar triangle rounded anteriorly, extending to region between ors, subshiny. Fronto-orbital plate slightly visible to not visible when head viewed laterally; well-developed but relatively narrow compared to most congeners, slightly subshiny, setae slightly inset. Chaetotaxy: Two ori; two ors. Orbital setulae in two irregular rows, erect to reclinate. Eye bare or with few minute, sparsely arranged hairs. Ocellar and postocellar setae well-developed, but thin. Two dorsocentral setae. Acrostichal setulae in eight irregular rows. Mid tibia with two posteromedial setae. Colouration: Body, including halter, dark brown in base colour. Gena slightly pale. Notum greenish, sometimes becoming bluish anteriorly. Calypter margin and hairs brown. Abdomen metallic green, sometimes coppery. Genitalia: (Figs 289 - 292) Epandrium with small posterodistal spine. Surstylus small and rounded with tubercle-like setae clustered along inner and inner-marginal surfaces. Apex of hypandrium extremely elongate and tapered, subtriangular with base shallow and broadly arched; inner lobe attached to remainder of hypandrium by lightly sclerotised bridge. Metepiphallus broad and box-like with serrated ridges ventrally and irregular ridges laterally. Distiphallus separated from phallophorus by ~ 1.5 x height of basiphallus; mesophallus produced slightly past base of distiphallus; distiphallus small and ovate in ventral view with thin spinulose internal pads; distoventral plate vestigial, continuing as elongate, irregular duct that often has small, faint subapical sclerotised spot. Ejaculatory apodeme typical of Melanagromyza, blade relatively narrow and slightly pointed apically.	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
987A3DD155BCEE79E2AE16DF80BAEE70.taxon	distribution	Distribution. USA: AR, CA, FL, IA, MD, MO *, MT *, NM *, OH, TX. Argentina. Bolivia. Brazil. Dominican Republic. Guadeloupe. Mexico. Venezuela. Uruguay.	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
987A3DD155BCEE79E2AE16DF80BAEE70.taxon	materials_examined	Additional material examined. Mexico. Durango: 20. ix. 1936, C. S. Rude (1 ♂, USNM). USA. FL: Hialeah, 15. xi. 1964, C. Stegamier, ex. Verbesina (1 ♂ 1 ♀, USNM), Key Largo, beach on NE, 13. xii. 1985, A. L. Norrbom, reared ex. flower of Borrichia frutescens (L.) DC (14 ♂ 14 ♀ [seven with puparia], USNM), Key Largo, Pennekamp State Park, 13. xii. 1985, A. L. Norrbom, reared ex. flower head of Borrichia frutescens (L.) (1 ♂, USNM), Big Pine Key, 13. xii. 1985, ex. flower head of Borrichia frutescens (L.) (1 ♂ 2 ♀, USNM), Dade Co., Naranja, 12. xii. 1985, A. L. Norrbom, reared ex flower head of Bidens alba v. radiata (1 ♂, USNM), IA: Winneshiek Co., Decorah, Will Baker Park, 43 ° 18 ' 9.12 " N, 91 ° 48 ' 42.15 " W, 10 - 13. viii. 2017, J. van der Linden, Rudbeckia laciniata, em. by 16. viii. 2017, # CSE 4945, CNC 1643663 - 1643667 (2 ♂ 3 ♀, CNC), MD: Montgomery Co., Bethseda, G. Steyskal, 31. viii. 1970 (1 ♀, USNM), 30. viii. 1970 (1 ♂, USNM), reared ex. flower heads of Heliopsis helianthoides, 21. viii. 1970 (2 ♂ 7 ♀ 8 puparia, USNM), 24. viii. 1970 (4 ♂ 3 ♀, USNM), 26. viii. 1970 (1 ♂, USNM), 27. viii. 1970 (3 ♂ 1 ♀, USNM), 28. viii. 1970 (2 ♀, USNM), 30. viii. 1970 (1 ♂ 3 ♀, USNM), 31. viii. 1970 (1 ♀, USNM), 2. ix. 1970 (3 ♀, USNM), 9. ix. 1970 (1 ♂ 3 ♀, USNM), 26. ix. 1970 (2 ♀, USNM) reared ex. flower heads of Rudbeckia lacinata, 13. viii. 1970 (1 ♀, USNM), 24. viii. 1970 (1 ♀, USNM), 28. ix. 1970 (1 ♂, USNM), 1. ix. 1970 (3 ♂, USNM), 2. ix. 1970 (1 ♀, USNM), 6. ix. 1970 (2 ♂, USNM), 8. ix. 1970 (1 ♂ 1 ♀, USNM), 9. ix. 1970 (2 ♂ 1 ♀, USNM), 10. ix. 1970 (3 ♂ 1 ♀, USNM), 11. ix. 1970 (1 ♂ 1 ♀, USNM), 14. ix. 1970 (1 ♂ 3 ♀, USNM), 16. ix. 1970 (2 ♂ 1 ♀, USNM), 17. ix. 1970 (2 ♂ 7 ♀, USNM), 20. ix. 1970 (1 ♀, USNM), viii-ix. 1971 (1 ♀ 7 puparia, USNM), 13. viii. 1974 (puparia, USNM), 23. viii. 1974 (1 ♀, USNM), 31. viii. 1971 (2 ♀, USNM), 2. ix. 1971 (6 ♀, USNM), 4. ix. 1971 (1 ♀, USNM), 3. ix. 1972 (1 ♀, USNM), 11. ix. 1972 (1 ♀ [with puparium], USNM), 1. ix. 1974 (7 ♀ [with puparia], USNM), 12. ix. 1974 (12 ♀, USNM), MO: St. Louis, 6.28, reared ex Helianthus pitcheriana, Webster Grve, No. 33125, Satterthwaite (5 ♂ 9 ♀ [gel capsule], USNM), MT: St. Louis Webster Grvs, No. 22195, " 7.30 ", reared from Heliopsis, Satterthwaite Collector (2 ♂ 3 ♀, USNM), NM: Roosevelt Co., Portales, 4000 ft, Malaise trap, 23 - 26. viii. 1993, O'Hara and Jorgensen, debu 00128110 (1 ♂, DEBU), TX: Hidalgo Co., Weslaco, ii. 1975, C. E. Rogers, larva in Helianthus annuus (3 ♂ 2 ♀, USNM).	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
61E996E0FFC0CF988D3C07AE19BD7129.taxon	description	Figs 293 - 296	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
61E996E0FFC0CF988D3C07AE19BD7129.taxon	description	Description. Wing length 2.5 - 2.7 mm (♂), 2.4 - 2.8 mm (♀). Length of ultimate section of vein M 4 divided by penultimate section: 0.6 - 0.7. Eye height divided by gena height: 2.1 - 5.9. Clypeus broadly rounded. Ocellar triangle and fronto-orbital plate subshiny. First flagellomere narrow, not broadly rounded below. Fronto-orbital plate and parafacial projecting with portion visible laterally 1 / 2 height of first flagellomere; fronto-orbital plate well-developed, setae inset. Ocellar triangle subshiny to matt, sometimes appearing to end at posterior ori, but if anterior margin ill-defined, then appearing to continue to lunule. Gena rounded, highest behind midpoint of eye. Chaetotaxy: Three ori (four on one side of IN male); two ors. Orbital setulae short, in up to four irregular rows, erect to reclinate. Eye pilose dorsomedially. Two dorsocentral setae. Acrostichal setulae in eight to ten irregular rows. Mid tibia with one or (more commonly) two posteromedial setae. Colouration: Body, including halter, dark brown in base colour. Notum greenish (faded anteriorly); femora sometimes also slightly reflective. Calypter margin and hairs white. Abdomen with greenish shine, sometimes becoming slightly coppery / reddish. Genitalia: (Figs 293 - 296) Posterodorsal margin of epandrium slightly produced; posteroventral spine well-developed. Surstylus 1 / 2 height of epandrium, with up to three rows of tubercle-like setae along inner distal margin. Basiphallus short, U-shaped, and extending slightly past base of distiphallus. Base of mesophallus extending past that of distiphallus; distiphallus with paired ventrolateral tubules shallowly raised from base of distiphallus, or prominent, separate and strongly looped (as illustrated); with dorsoapical margin strongly flared laterally; venter with strong divided carina. Ejaculatory apodeme well-developed with base dark, becoming paler distally on stem; blade large, spade / diamond-shaped, weakly sclerotised but with defined medial rib and strong marginal band (less so laterally) well-defined.	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
61E996E0FFC0CF988D3C07AE19BD7129.taxon	distribution	Distribution. USA: IN, VA.	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
61E996E0FFC0CF988D3C07AE19BD7129.taxon	etymology	Etymology. L. rutrum for spade, shovel, referring to the shape of the large ejaculatory apodeme.	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
44D6C6E1B33D3BC83EA441B22A278A37.taxon	description	Figs 297 - 300	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
44D6C6E1B33D3BC83EA441B22A278A37.taxon	description	Description. Wing length 1.8 - 2.6 mm (♂), 1.9 - 2.6 mm (♀). Length of ultimate section of vein M 4 divided by penultimate section: 0.5 - 0.7. Eye height divided by gena height: 3.9 - 6.9. Deepest portion of gena 1 / 3 - 1 / 2 distance from anterior margin. Fronto-orbital plate not projecting, sometimes slightly visible in lateral view; strongly swollen in males, 25 - 28 % frons width, narrowing anteriorly; narrower in females, 16 - 23 % frons width; setae inset along inner margin of plate. Clypeus broadly rounded. Ocellar triangle slightly longer than wide. Chaetotaxy: Two ori with anterior seta strongly displaced anteriorly; two ors. Eye extensively pilose, hairs sparse excluding dense dorsal patch. Orbital setulae erect to reclinate, slightly proclinate anteriorly (mostly inner row), in up to three or four irregular rows; setulae longer in male. Two dorsocentral setae. Acrostichal setulae in eight irregular rows. Mid tibia with two posteromedial setae. Colouration: Body, including halter, dark brown in base colour. Fronto-orbital plate sometimes whitish along anteromedial margin. Notal colour ranging from brilliant green to dull green with coppery tint. Calypter margin and hairs white. Abdomen metallic green, sometimes bronze (Austin, TX). Genitalia: (Figs 297 - 300) Epandrium with posterodistal spine. Surstylus <1 / 2 height of epandrium, distal margin slightly rounded and angled, with several irregular rows of tubercle-like setae along inner-distal surface. Hypandrium subtriangular, long with thin, tapered distal process. Proepiphallus dark and V-shaped. Metepiphallus broad and dark with several sublateral tubercles and lateral ridges. Basiphallus U-shaped. Space between distiphallus and phallophorus less than height of basiphallus. Distiphallus relatively globular with distinct transverse fold laterally on distal 1 / 3 that curves towards venter; base exceeding that of mesophallus; inner surface only with clusters of shallow bumps (no spines); with short narrow tubule emerging apically below short plate; seen ventrally, width of distiphallus varying from relatively slender (as in illustration) to stouter around middle. Variation: One AZ male (dissected) with fronto-orbital plate swollen to 1 / 3 width of frons (ie. similar to M. virens). Dissected Newark (DE) male, possibly a separate species, differs as follows: dark distoventral process on distiphallus highly reduced, distiphallus slightly more quadrate in outline (seen ventrally), and surstylus not downturned apically, but with long tubercule-like setae typical of M. matricariodes and M. virens; clypeus distinctly truncated apically and orbit slightly less swollen medially.	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
44D6C6E1B33D3BC83EA441B22A278A37.taxon	distribution	Distribution. USA: AZ, CA, DE *, FL, HI, IL, IN *, MD *, MI [?], MO *, NC *, NY [?], SC [?], TX *. Argentina *. Bahamas. Chile. Jamaica. Mexico.	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
44D6C6E1B33D3BC83EA441B22A278A37.taxon	materials_examined	Additional material examined. Argentina. Salta: Rt. 34, 4 km S Metan, i. 1983, Galinsoga parviflora, tunneling inside stems (1 ♂ 1 ♀, USNM), Jujuy: Rt. 9, 1 km S Maimara, 31. xii. 1982, Hymenoxis robusta, tunneling inside stem (1 ♀, USNM). Bahamas. Bimini Isl., 22 - 31. i. 1968, light trap, G. M. Stokes (2 ♂, USNM). Chile. Valdivia: Santiago, 4. v. 1978, 78.3999, reared ex. sunflower stalk (1 ♂, USNM). USA. AZ: Yuma, 20. v. 1968, D. M. Tuttle (2 ♂ 2 ♀, USNM), CA: Ortega Hiwy., near summit, 11. vi. 1944, A. L. Melander (1 ♂, USNM), San Simeon, 31. viii. 1945, A. L. Melander (1 ♀, USNM), Orange Co., Fullerton, 13. ii. 1969, R. D. Goeden and D. W. Ricker, insectary reared on Ambrosia psilostachya Decandolle (2 ♂, USNM), Santa Barbara Co., Santa Barbara, 22. iv. 1969, R. D. Goeden and D. W. Ricker, insectary reared on Ambrosia psilostachya (2 ♂ [with puparia], USNM), San Bernardino Co., Highland, 2. v. 1969, R. D. Goeden and D. W. Ricker, insectary reared on Ambrosia acanthicarpa Hook. (1 ♀ [with puparium], USNM), Cucamonga, 20. v. 1969, R. D. Goeden and D. W. Ricker, insectary reared on Ambrosia acanthicarpa Hook. (1 ♀ [with puparium], USNM), Salinas, 1. xi. 1930, Bred from [illegible] ule (1 ♂, USNM), L. A. Co., Westwood Hills, 3. xi. 1938, ex Cineraria stems acc. 94 (1 ♂, USNM), DE: Lum's Pond, 17. vii. 1974, D. Buntin (2 ♂, USNM), Newark, D. Buntin, 19. viii. 1974 (2 ♂, USNM), 10. vii. 1975 (1 ♂, USNM), 9. vi. 1975 (1 ♂, USNM), FL: Dade Co., Naranja, 12. xii. 1985, A. L. Norrbom (1 ♂, USNM), Highlands Co., Archibold Biological Sta., 24. iii. 1969, S. W. Frost, CNC 358443 (1 ♂, CNC), Highland Co., Archibold Biol. Sta., 24. iv. 1967, B. V. Peterson, CNC 358464 (1 ♂, CNC), HI: Honolulu, 6. v. 1929, ex Cornflower (Centaurea), J. F. Illingworth (2 ♂, USNM), 7. v. 1929 (1 ♂ 1 ♀, USNM), 8. v. 1929 (1 ♀, USNM), IL: Champaign, tomato leaves, 12. ix. 1957, J. F. McAlpine, CNC 358451 (1 ♂, CNC), Alhambra, 24. vi. 1937, reared from sunflower, destroying stem, Satterthwaite (4 ♂ 10 ♀, USNM), IN: Lafayette, J. M. Aldrich, " vii- 21 " (1 ♂, USNM), " x- 14 " (1 ♂, USNM), 4. ix. 1916 (1 ♂, USNM), " vii- 26 " (1 ♂, USNM), " 6 - 27 " (1 ♂, USNM), " v- 23 " (1 ♂, USNM), " v- 27 " (2 ♂, USNM), [no date] (1 ♂, USNM), MD: College Park, 2. viii. 1931, C. T. Greene (1 ♂, USNM), NC: Chadboura, 27. v. 1910, feeding on potato, E. G. Smyth (1 ♂, USNM), MO: Webster Groves, 17. v. 1932, Helianthus tuberosa, Satterthwaite (1 ♀, USNM), [locality not provided, likely Webster Groves], 32165 b, Helianthus tuberosa (1 ♂, USNM), TX: Galveston, vi. 1900, A. L. Melander (1 ♂, USNM), Mexico, in carrot, Laredo, Tx., 31255, 18. i. 1943, Lot No. 43 - 1075 (1 ♂, USNM), 31457, 13. ii. 1943, Lot No. 43 - 1590 (1 ♂ 1 ♀, USNM), Mexico, in carrot root, El Paso, 33818, Lot No. 42 - 6728 (1 ♀, USNM).	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
29E8BDA7245D26401221C531449C84FF.taxon	description	Figs 301 - 304	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
29E8BDA7245D26401221C531449C84FF.taxon	description	Description. Wing length 2.8 - 3.2 mm (♂), 3.4 - 3.5 mm (♀). Length of ultimate section of vein M 4 divided by penultimate section: 0.5 - 0.6. Eye height divided by gena height: 5.0 - 5.5. Gena highest at ~ anterior 1 / 3, angled upwards anteriorly, with distinct cheek. Fronto-orbital plate well-developed, slightly visible laterally, setae slightly inset. Clypeus broadly rounded. Fronto-orbital plate and ocellar triangle slightly less matt than surrounding frons. Ocellar triangle reaching second ori from rear. Chaetotaxy: Five to six fronto-orbitals with posterior one or two reclinate (ors). Ocellar setulae short, reclinate, in two irregular rows. Eye sparsely pilose dorsomedially, sometimes slightly denser in male. Anterior genal seta sometimes vibrissa-like. Two dorsocentral setae; MD male with third dorsocentral on left side. Acrostichal setulae in eight irregular rows. Mid tibia with two posteromedial setae. Colouration: Body, including halter, dark brown in base colour; female darker, blackish. Scutellum with faint greenish shine in male, female sometimes with bluish tint. Calypter margin and hairs white. Abdomen with green or bluish green shine, and females sometimes with strong blue shine only. Slightly reddish, at least on antenna and gena, and sometimes more widespread. Genitalia: (Figs 301 - 304) Epandrium with small posterodistal spine. Surstylus ~ 1 / 2 length of epandrium venter (epandrium dorsum shallower); inner surface with several irregular rows of tubercle-like setae. Hypandrium subtriangular with slightly produced apex. Metepiphallus with serrated ventral and lateral ridges. Proepiphallus V-shaped. Basiphallus forming complete ring with ventrodistal margin ill-defined. Distiphallus separated from phallophorus by height of basiphallus; mesophallus slightly exceeding base of distiphallus; distiphallus relatively flat, with internal spinulose pads, strongly upturned and apically widened dorsoapical membranous process; ventrolateral tubules short. Ejaculatory apodeme well-developed with short stem and narrow rib slightly exceeding apex of broad, pale, ovate blade.	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
29E8BDA7245D26401221C531449C84FF.taxon	distribution	Distribution. USA: IA, IL, MD *, NC *, PA, VA.	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
29E8BDA7245D26401221C531449C84FF.taxon	materials_examined	Material examined. USA. IL: Oregon, 21. vi. 1917, en copulae; CNC 358452 (1 ♂ 1 ♀, CNC), MD: Laurel, 1. vi. 1965, Malaise trap, CNC 358454, CNC 358455, CNC 358456 (3 ♀, CNC), nr. Plummers Isl., 2. v. 1915, R. C. Shannon (1 ♀, USNM), Montgomery Co., Bethseda, 26. v. 1968, G. Steyskal (1 ♂, USNM), NC: Wilson's Gap, 944 m, 25. v. 1957, J. R. Vockeroth, CNC 358453 (1 ♂, CNC).	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
E103CFA6EEF31A94A55438BF4F6FE270.taxon	description	Figs 305 - 308	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
E103CFA6EEF31A94A55438BF4F6FE270.taxon	description	Description. Wing length 3.1 - 3.5 mm (♂), 2.8 - 3.4 mm (♀). Length of ultimate section of vein M 4 divided by penultimate section: 0.6 - 0.7. Eye height divided by gena height: 4.6 - 5.5. Clypeus broadly rounded. Male eye with short, scattered setulae covering dorsomedial region of eye (setulose region relatively narrow compared to M. Melanagromyza vernoniana) that may sometimes be relatively dense; female eye virtually bare. Fronto-orbital plate slightly widened at middle, only slightly more than one quarter width of frons at widest point; subshiny; bulging anteriorly and slightly visible laterally, sometimes continuing as ring below eye. Ocellar triangle relatively narrow and parallel-sided, reaching level of posterior ori. Chaetotaxy: Two ori with anterior seta strongly displaced anteriorly (one IN male with additional seta between standard ori that is weak on left side and well-developed on right); two ors with anterior seta slightly inclinate. Orbital setulae with up to three irregular, scattered rows, generally erect, slightly reclinate anteriorly and proclinate posteriorly and along outer row; relatively long and bushy, considerably longer than ommatrichia (more so in males). Two dorsocentral setae. Acrostichal setulae in eight irregular rows. Katepisternum with one to several short setae clustered dorsomedially. Mid tibia with two posteromedial setae. Colouration: Body, including halter, dark brown in base colour; pedicel and scape sometimes slightly paler brown. Notum with slight bluish shine that may be slightly greenish, especially on posterior third of scutum and on scutellum. Calypter margin and hairs white. Abdomen with strong metallic green shine. MN male with abdomen blue. IN specimens with notum greenish (not blue) and abdomen greenish coppery in males and green to blue in females. Genitalia: (Figs 305 - 308) Surstylus (entirely fused to epandrium) with relatively long, flat distal margin ~ 2 / 3 length of distal section of epandrium (dorsum of epandrium shallower) that is slightly produced at anterior corner; inner surface with two (posteriorly) to four (anteriorly) rows of short, thickened setae, of which a few at slightly produced corner of surstylus are elongate, although state not as exaggerated as seen in M. virens. Hypandrium extremely long and produced apically and with longitudinal basal ridge; inner lobe irregular in outline and weakly sclerotised. Metepiphallus with small spines medially and with coalescing ridges laterally. Proepiphallus V-shaped. Basiphallus U-shaped with corners at right angles and arms parallel. Mesophallus and distiphallus level at base. Distiphallus with basal section ~ 2 / 3 length of segment, relatively narrow, not bulging dorsally, with well-developed internal spinulose pads; ventrolateral tubules relatively long, narrow, recessed.	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
E103CFA6EEF31A94A55438BF4F6FE270.taxon	distribution	Distribution. USA: DC, IN *, MN *.	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
E103CFA6EEF31A94A55438BF4F6FE270.taxon	materials_examined	Additional material examined. USA. DC: Washington, E Bank CandO Canal nr. Ariz. Ave., 14. x. 1969, D. M. Anderson, Reared from larvae in stem Vernonia noveboracensis, 23. ii. 1970 (3 ♀, USNM), Washington, E Bank CandO Canal nr. Ariz. Ave., 28. iii. 1970, D. M. Anderson, Reared from larvae in stem Vernonia noveboracensis (1 ♀, USNM), IN: LaFayette, J. M. Aldrich, v- 23 (1 ♂ 1 ♀, USNM), v- 27 (6 ♂ 3 ♀, USNM), v- 28 (1 ♂, USNM), iv- 27 (3 ♂, USNM), vi- 10 (1 ♂, USNM), vi- 22 (1 ♀, USNM), vi- 23 (1 ♂, USNM), vii- 8 (1 ♀, USNM), 6 - 27 (1 ♂, USNM), MN: New Ulm, 30. v. 1916, J. M. Aldrich (1 ♂, USNM).	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
964711EA55D70448D2AC6C1B47151F3D.taxon	description	Figs 309 - 317	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
964711EA55D70448D2AC6C1B47151F3D.taxon	description	Description. Wing length 2.3 - 2.8 mm. Length of ultimate section of vein M 4 divided by penultimate section: 0.6 - 0.8. Eye height divided by gena height: 4.1 - 5.0. Clypeus broadly rounded. Pilosity on male eye dense and relatively broad dorsally, covering most of dorsal third of eye. Fronto-orbital plate slightly widened at middle, not exceeding 1 / 5 width of frons; subshiny; reaching level of posterior ori. Chaetotaxy: Two ori with anterior pair of setae widely separated from second pair; two ors. Orbital setulae in up to three irregular rows, reclinate to slightly lateroclinate with inner row partially proclinate; as long as eye setulae, and slightly darker and much less densely arranged compared to eye setulae. Two dorsocentral setae. Acrostichal setulae in eight irregular rows. Mid tibia with two posteromedial setae. Colouration: Body, including halter, dark brown in base colour; pedicel and portions of frons sometimes slightly paler. Notum with faint greenish to bluish shine; indistinct in poorly preserved specimens. Calypter margin and hairs white. Abdomen with strong metallic green shine, sometimes bronze. Genitalia: (Figs 309 - 313) Epandrium with small posterodistal spine. Surstylus one 1 / 2 length of epandrium or slightly less; slightly produced, elongate; inner surface with several irregular rows of tubercle-like setae, posterodistal corner with several of these longer, posteriorly directed (not as pronounced as state seen in M. virens and M. matricariodes). Metepiphallus with serrated ventral ridges and ventrally coalescing lateral ridges. Proepiphallus very dark and V-shaped. Phallophorus short. Basiphallus U-shaped with minute irregularities in lateral margin. Distiphallus separated from phallophorus by slightly more than height of basiphallus; base of mesophallus produced slightly past base of distiphallus; distiphallus with broad, short base and elongate distal section that is slightly upcurved when seen laterally and elongate oval when seen ventrally; distiphallus sometimes with one pair of short subtriangular plates emerging anterodorsally from swollen basal section. Variation: See comments section.	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
964711EA55D70448D2AC6C1B47151F3D.taxon	distribution	Distribution. Canada: ON *. USA: DC, IL *, IN *, MD, MO *, OH, OK *, TN, TX, VA *, VT *, WI *.	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
964711EA55D70448D2AC6C1B47151F3D.taxon	materials_examined	Additional material examined. Canada. ON: Wellington Co., nr. Arkell, 43 ° 33 ' 18 " N, 80 ° 10 ' 16 " W, trail beside river, 24. vi. 2010, O. Lonsdale, CNC 358506 (1 ♂, CNC). USA. IL: Urbana, in Nat. Res. Mus., 5. v. 1957, J. F. McAlpine, CNC 358450 (1 ♂, CNC), Hinsdale, 25. x. 1929, H [elianthus] Helianthus tuberosus, Webster Grve, Satterthwaite, No. 29308818 (1 ♂, USNM), No. 29308817 (1 ♂, USNM), Hinsdale, [illegible], 25. x. 1929, Webster Grvs, No. 29310 a, [illegible], 8. i. 1930, Satterthwaite (1 ♀, USNM), Chicago, 6. vi. 1903, A. L. Melander (1 ♂, USNM), IN: Lafayette, 27. x. 1915, reared from sunflower pith, Cage No. C 1490, Satterthwaite (1 ♂, USNM), MD: Montgomery Co., Bethseda, 23. v. 1970, G. Steyskal (1 ♂, USNM), MO: Black Jack, 28. x. 1930, Webster Grove, Helianthus tuberosa, Satterthwaite, [illegible], No. 40319 g, 13. iv. 1931 (1 ♀, USNM), No. 30419 a, 20. iv. 1931 (1 ♂, USNM), Web Groves Sta., dead at cold room window, 14. iv. 1933 (3 ♂ 4 ♀ [gel capsule], USNM), 20. iv. 1933 (2 ♀ [with 2 Braconidae in gel capsule], USNM), 21. iv. 1933 (1 ♀ [with Braconidae in gel capsule], USNM), OK: Murray Co., Sulphur, Chickasaw Rec. Area, 4. vi. 1979, S. andJ. Peck, prairie vegetation (1 ♂, DEBU), MO: Cross Keys, 1. xii. 1932, dead 3. ii. 1933, Webster Grv, No. 32 S 11, R. B. Swain (1 [unemerged from puparium], USNM), Webster Grvs, No. 32052 C, Helianthus annuus, laboratory garden, [date illegible], dead 11. v. 1932, Satterthwaite (1 ♂, USNM), Webster Groves, Helianthus annuus, 23. iii. 1930, No. 30012, issued 1. iv. 1930, R. C. Lange (1 ♂, USNM), 16. iii. 1931, No. 31025 C, issued 14. iv. 1931 (1 ♂, USNM), Webster Groves, sunflower, iss. [?]. iii. 1933, No. 33034 R, Satterthwaite (1 ♂, USNM), iss. 4. iv. 1933, 26. iii. 1933 (1 ♂ 2 ♀, USNM), 26. iii. 1933, No. 33039 f, iss. 3. iv. 1933 (1 ♂ 2 ♀, USNM), iss. 5. iv. 1933, No. No. 33039 f, 26. iii. 1933 (1 ♂, USNM), iss. 30. iii. 1933, No. 330392, 26. iii. 1933 (1 ♂, USNM), Webster Groves, 26. vii. 1929, reared from sunflower, issued 3. viii. 1929, dead 3. viii. 1929, No. 29162, Satterthwaite (1 ♂, USNM), Webster Groves, sunflower, issued 12. viii. 1929, dead 8.13, No. 29161, 26. vii. 1929, Satterthwaite (1 ♂, USNM), Webster Groves, 9. vi. 1929, sunflower, Satterthwaite (1 ♀, USNM), 21. viii. 1928 (1 ♀, USNM), Maplewood, 24. vii. 1930, issued 22. viii. 1930, Webster Grvs, No. 30246 b, Satterthwaite (1 ♂, USNM), issued 25. viii. 1930, No. 30246 a (1 ♀, USNM), East St. Louis, [?], 9. ix. 1929, sunflower, Webster Grvs, No. 2925290, issued ix. 1930, J. B. Sahan (1 ♀, USNM), Cross Keys, Artichoke, Webster Grvs, R. B. Swain, 1. xii. 1932, iss. 14. iii. 1933, No. 32497 p (1 ♂, USNM), 1. xii. 1932, iss. 4. iii. 1933, No. 32497 t (1 ♂, USNM), 1. xii. 1932, iss. 1. iv. 1933, No. 32497 aa (1 ♂, USNM), 1. xii. 1932, iss. 29. iii. 1933, No. 32497 d (3 ♂ 1 ♀, USNM), 1. xii. 1932, iss. 1. iv. 1933, No. 32497 ab (1 ♂, USNM), 1. xii. 1932, iss. 5. iv. 1933, No. 324970 (1 ♀, USNM), 1. xii. 1932, iss.? 3. iv. 1933, No. 32497 h (1 ♀, USNM), 1. xii. 1932, iss. 2.20, No. 33003 (1 ♀, USNM), Florrisant, Artichoke, Webster Grvs, 2. xii. 1932, iss. 12. iv. 1933, No. 32495 (1 ♀, USNM), Black Jack, Artichoke, Webster Grvs, R. B. Swain, 18. x. 1932, iss. [illegible], No. 32476 (1 ♂, USNM), 1. xii. 1932, iss. 31. iii. 1933, No. 32497 f (1 ♂, USNM), 1. xii. 1932, iss. 13. iv. 1933, No. 32446 (1 ♀, 6 ♂ 2 ♀ [gel capsule], USNM), VA: Batesville, M. L. Bobb, 6. vi. 1940 (1 ♂, VPIC), 26. iv. 1939 (1 ♂, VPIC), 18. v. 1940 (1 ♀, VPIC), 30. iv. 1940 (1 ♂, VPIC), Fairfax Co., Great Falls Park, quarry, 38 ° 59.1 ' N, 77 ° 14.8 ' W, Malaise trap, 3 - 10. v. 2007, D. R. Smith, CNC 358447 (1 ♂, CNC), Charlottesv., 30. xi. 1930, Webster Grvs, No. 30480 s, Helianthus tuberosa, [illegible], 14. iv. 1931, Dr. Phillips (1 ♀, USNM), 20. xi. 1930, No. 30480 h (1 ♀, USNM), VT: Plainfield, 24. vi. 1980, B. V. Peterson, CNC 358504 (1 ♂, CNC), WI: Grant Co., Thomas Wet. Prairie, 30. ix. 1997, A. H. Williams, Helenium autumnale, [host plant] stripped of leaves and inflorescences, put into sterile containers over sterile soil and netted with hosiery, outdoors until 2. iii. 1998 when caged in lab, em. 4 - 15. iv. 1998, CNC 934525 - 934529 (3 ♂ 2 ♀, WIRC).	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
0FC7703F2B357CE72C912735AE9B4FE9.taxon	description	Figs 4, 56, 57, 62, 63, 318 - 324	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
0FC7703F2B357CE72C912735AE9B4FE9.taxon	description	Description (Figs 4, 56, 57, 62, 63, 324). Wing length 1.8 - 2.3 mm (♂), 2.4 - 2.6 mm (♀); female lectotype and paralectotype 2.9 mm and 3.2 mm, respectively. Length of ultimate section of vein M 4 divided by penultimate section: 0.6. Eye height divided by gena height: 4.6 - 6.5. Gena usually deepest at 1 / 3 distance from anterior margin, or slightly behind. Clypeus broadly rounded. Ocellar triangle narrow, reaching level of posterior ori, sides concave. Fronto-orbital plate widest medially, broadest behind middle; slightly visible laterally, sometimes more so anteriorly; very broad, each plate usually at least 1 / 3 width of frons, sometimes nearly touching medially and sometimes slightly narrower in female; less commonly as narrow as 1 / 4 width of frons. Fronto-orbital plate and most of ocellar triangle subshiny. Frons and eye bulging anterodorsally. Chaetotaxy: Two widely spaced ori; two ors. Orbital setulae relatively dense, long and bushy, especially in males where setulae usually exceed length of setulae on eye; in up to three or four rows; mostly lateroclinate, reclinate to erect, inner rows partially proclinate; brownish yellow. Eye narrowly pilose dorsomedially in male, nearly bare in female; relatively sparse on both. Two dorsocentral setae. Acrostichal setulae in eight irregular rows. Mid tibia with two posteromedial setae. Colouration: Body, including halter, dark brown in base colour. Notum with light greenish shine, sometimes bluish. Calypter margin and hairs white. Abdomen (excluding tergite 1) strongly coppery or metallic green, but sometimes hints of both colours present; sometimes bluish in male or with stronger metallic blue shine in female. Genitalia: (Figs 318 - 323) Epandrium with regularly developed to slightly elongate posterodistal spine. Surstylus narrow, produced and angled posteroventrally, with two or three irregular rows of tubercle-like setae that sometimes extend along entire length of surstylus or extend nearly to base in one to two rows; apical setae very elongate and either clustered apically or (more frequently) extended in irregular row to midpoint of surstylus. Basiphallus slightly separated from phallophorus, U-shaped with dorsal section straight; overlapping or nearly overlapping distiphallus. Mesophallus inserted before midpoint of distiphallus; base exceeding that of distiphallus. Distiphallus teardrop-shaped with ventrodistal surface dark, plate-like and with margins slightly to strongly sinuate (especially pronounced in illustrated male from Chicago); internal spinulose structure well-developed; ventrolateral tubules small, recessed. Variation: (Figs 62, 63) Lectotype female, DC male and Falls Church, VA male with fronto-orbital plate only 1 / 4 width of frons, and consequently with fewer rows of setulae; males with orbital setulae as long as setulae on eye. Female lectotype with seta on hind tibia on outer surface at basal 1 / 3 and abdomen with unusually pronounced blue metallic shine.	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
0FC7703F2B357CE72C912735AE9B4FE9.taxon	distribution	Distribution. Canada: BC, ON, NB *, QC. USA: DC, DE *, FL, IL, ID, MA, MD, NC *, NJ, NY *, PA, SC, TN *, VA *.	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
0FC7703F2B357CE72C912735AE9B4FE9.taxon	materials_examined	Additional material examined. Canada: NB: Sainte-Anne-de-Kent, 46 ° 34 ' N, 64 ° 47 ' W, 28 - 29. vii. 2013, O. Lonsdale, CNC 358532 (1 ♂, CNC). USA. DC: Washington, 17. viii. 1913, A. L. Melander (1 ♂, USNM), Washington, E bank CandO canal nr. Ariz. Ave., 23. i. 1970, D. M. Anderson, reared from larva in stem Vernonia noveboracensis, 25. ii. 1970 (1 ♂, USNM), Washington, 20. i. 1969, D. M. Anderson, ex. stem of Eupatorium rugosum [illegible], emerged indoors 5. iii. 1969 (1 ♀, USNM), Washington, E Bank CandO Canal nr. Ariz. Ave., reared from larva in stem Vernonia noveboracensis, D. M. Anderson, 23. i. 1970 (1 ♂, USNM), 28. iii. 1970 (2 ♂ 1 ♀, USNM), 14. x. 1969, reared 23. ii. 1970 (3 ♀, USNM), Cropley, 20. x. 1968, D. M. Anderson, ex. stem Vernonia noveboracensis, emerged indoors 16. ii. 1969 (1 ♂, USNM), DE: Gumboro, 2. viii. 1952, C. Sabrosky (1 ♂, USNM), Rehoboth, " 4 / 8 / 41 ", A. L. Melander (1 ♂, USNM), FL: Highlands Co., Archbold Bio. Sta., 13 - 19. iv. 1970, W. W. Wirth (1 ♀, USNM), Cape Sable, 31. iii. 1953, W. R. M. Mason (1 ♀, CNC), IL: Chicago, A. L. Melander, CNC 358432 (1 ♂, CNC), MD: Glen Echo, 30. vii. 1922, J. R. Malloch (1 ♂, USNM), Plummers Isl., 20. vii. 1913, J. R. Malloch (1 ♂, USNM), NC: Carteret Co., Atlantic Beach, 3 - 4. ix. 1986, G. F. and J. F. Steyskal (1 ♂ 1 ♀, USNM), Mongomery Co., 4 mi SW of Ashton, Malaise trap, 26. v. 1981, G. F. and J. F. Hevel (1 ♂, USNM), NY: Long Island, Cold Spring Harbor, A. L. Melander (1 ♀, USNM), Ithaca, 31. v. 1914, A. L. Melander (1 ♂, USNM), Cld. Sp. Harb., L. I., A. L. Melander, CNC 358430 (1 ♂, CNC), PA: Spring Br., 9. v. 1945, DDT Expt (1 ♂, USNM), TN: Cocke Co., Twin Creeks Uplands Res. Lab, Great Smokey Mtn. N. P., 35 ° 41.2 ' N, 83 ° 30 ' W, 1900 ', 27. v. 1999, S. D. Gaimari (1 ♂, USNM), VA: Shenandoah, Big Meadows, 3. vii. 1939, A. L. Melander (1 ♂, USNM), Fairfax Co., Dead Run, 5. v. 1915, R. C. Shannon, CNC 358431 (1 ♀, CNC), Falls Church, 11. iv. 1923, W,. Middleton (1 ♂, USNM).	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
A80A2A13FFC7C11A92170305AC1A777E.taxon	description	Figs 58, 59, 325 - 328	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
A80A2A13FFC7C11A92170305AC1A777E.taxon	description	Description (Figs 58, 59). Wing length 3.1 - 3.2 mm (♂), 2.8 - 3.3 (♀). Length of ultimate section of vein M 4 divided by penultimate section: 0.6 - 0.7. Eye height divided by gena height: 3.7 - 5.9. Clypeus broadly rounded. Ocellar triangle slightly longer than wide. Fronto-orbital plate 1 / 4 width of frons, widest near middle. Fronto-orbital plate and ocellar triangle subshiny. Chaetotaxy: Two widely separated ori; two ors. Eye extensively pilose, with hairs sparse excluding dense dorsal patch. Orbital setulae erect to slightly proclinate, and mostly lateroclinate. Two dorsocentral setae. Acrostichal setulae in eight irregular rows. Mid tibia with two posteromedial setae. Colouration: Body, including halter, dark brown in base colour. Notum with light bluish tint anteriorly (often absent) and more intense greenish shine posteriorly. Calypter margin and hairs white. Female anepisternum with greenish tint. Abdomen (excluding tergite 1) metallic green. Genitalia: (Figs 325 - 328) Epandrium with small posterodistal spine. Surstylus 1 / 2 - length of epandrium and with several rows of tubercle-like setae on inner surface. Hypandrium subtriangular with short apical process. Metepiphallus smooth ventrally and with short ridge on separate lateral sclerite. Proepiphallus narrow and weakly sclerotised. Basiphallus U-shaped and relatively long. Distiphallus separated from phallophorus by height of basiphallus; base of distiphallus extending slightly past base of closely held mesophallus; large, stout, and well-developed with especially long, broad, high distal section. Ejaculatory apodeme large and well-developed.	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
A80A2A13FFC7C11A92170305AC1A777E.taxon	distribution	Distribution. KS *, MA *, MD *, NH *, NY *, PA *, VA.	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
A80A2A13FFC7C11A92170305AC1A777E.taxon	materials_examined	Additional material examined. USA. KS: Lawrence, J. M. Aldrich (1 ♂, USNM), MA: Boston, May, A. L. Melander (1 ♀, USNM), MD: Glen Echo, 28. v. 1919, J. M. Aldrich (1 ♀, USNM), Plummers Isl., at light, 28. iv. 1914, R. C. Shannon (1 ♀, USNM), Chain Bridge, 12. ix. 1913, R. C. Shannon (1 ♀, USNM), Montgomery Co., Bethseda, 3. vi. 1972 (5 ♂, USNM), 28. v. 1986 (1 ♀, USNM), 3. vi. 1986 (2 ♀, USNM), 6. ix. 1981 (1 ♂, USNM), Howard Co., Fulton, 21. v. 1989, M. J. and R. Molineaux, J. E. Creeden (1 ♂, USNM), NC: Carteret, Co., Atlantic Beach, 3 - 4. ix. 1984, G. F. and J. F. Hevel (1 ♀, USNM), NH: Franconia Ntch, 8. vii. 1931, A. L. Melander (2 ♀, USNM), NY: Ithaca, 31. v. 1914, A. L. Melander (1 ♂ 2 ♀, USNM), New York City, " vCortlndPk ", 15. v. 1926, A. L. Melander (1 ♀, USNM), PA: Pittsburg, McCandless Township, Allegheny Co., J. Plakidas, 20. ix. 1978, " fly larva feed on gall tissue " (1 ♂, USNM), VA: Glencarlyn, 12. vi. 1920, J. R. Malloch (1 ♂, USNM), Glencarlyn, 21. viii. 1929, emg., " 8 - 9.29 ", Rudbeckia gall, J. C. Bridwell (1 ♂, USNM), nr. Plummers Isl., 19. x. 1914, R. C. Shannon (1 ♀, USNM), Montgomery Co., Bethseda, 3. vi. 1972, G. Steyskal (2 ♀, USNM), Talbot Co., McDaniel (Wades Point), 19 - 21. ix. 1986, Malaise trap, salt marsh with flowering Baccharis, W. E. Steiner (1 ♀, USNM), Northampton Co., Kiptopeke, 4 - 6. x. 1986, W. E. Steiner et al. (1 ♂ 1 ♀, USNM).	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
6EC35EFFB5A67EF73454B231064425B1.taxon	description	Figs 118, 119, 653 - 659	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
6EC35EFFB5A67EF73454B231064425B1.taxon	description	Description (Figs 118, 119, 653). Wing length 1.4 - 1.8 mm (♂), 1.8 - 2.2 mm (♀). Length of ultimate section of vein M 4 divided by penultimate section: 2.0 - 3.5. Costa ending at vein M (ending at R 4 + 5 in some Metopomyza). Eye height divided by gena height: 3.1 - 4.0. First flagellomere slightly longer than high with anterodistal margin pointed, with point reduced to pronounced. Ocellar triangle rounded, barely larger than tubercle. Cheek weakly developed. Thorax with light pruinosity, but usually more matt; venter of pleuron shiny. Chaetotaxy: Two to three ori; two ors; decreasing in size anteriorly. Orbital setulae well-developed, densely clustered anteriorly. Postocellar and ocellar setae slender, as long as ors. Three dorsocentrals, decreasing in length anteriorly, sometimes with much smaller fourth sutural to presutural dorsocentral. Acrostichal setulae in four irregular rows. Colouration: Head brown with face (shiny medially) slightly darker, clypeus dark brown, and postgena and gena light brown with lower margin of gena dark and shiny; frons soft and yellowish brown to light brown with fronto-orbital plate (narrowing anteriorly), posterior margin and ocellar triangle dark brown. Scutum dark brown with wide yellow stripe on scutellum, and with notopleuron, postpronotum and supra-alar region slightly paler. Calypter hairs light brown, margin narrowly light brown. Legs dark brown with apices of femora yellow with spots on mid and hind femora sometimes reduced. Abdomen brown, tergites 1 - 5 uncommonly yellow laterally. Genitalia: (Figs 654 - 659) Epandrium slightly produced and narrowed ventrally; with numerous tubercle-like setae on inner-medial ridge and along inner-distal margin, forming two dense, irregular comb-like rows; posterior margin ventral to cerci with several tubercle-like setae placed irregularly. Cercus very narrow and slender, with few short setae. Surstylus positioned and directed anteriorly, apex broadly rounded, free from epandrium; with several stout apical setae and one tubercle-like seta. Subepandrial sclerite broad and plate-like with dorsal region thicker and with one pair of short, ill-defined lateral arms, venter shallowly bilobed medially. Hypandrial lobe well-developed, with one seta; with pronounced anterobasal extension. Postgonite rounded apically, bare, with several sockets anteriorly, posteriorly split. Phallophorus slightly elongate and narrow. Basiphallus flat, dorsally confluent with phallophorus, apically split. Hypophallus broad, flat; lateral margins sclerotised and with inner-medial process. Paraphalli forming broad membranous leaf-like plates. Mesophallus cylindrical, constricted medially, length 2 x width. Distiphallus bifid with weak connection between halves and apex flared; sclerotised medially; slightly longer than basiphallus. Ejaculatory apodeme with abbreviated base, narrow stem that continues onto pale blade as sublateral rib; blade marginally striated; sperm pump clear.	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
6EC35EFFB5A67EF73454B231064425B1.taxon	distribution	Distribution. Canada: AB, BC, MB, NL, NT, NU, ON, QC, YT *. USA: AK, CA, CO *, CT *, ID *, IL, KS, MA *, MI, MO *, NH *, NY *, OR, TX, VA, WA. Europe. Russia.	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
6EC35EFFB5A67EF73454B231064425B1.taxon	materials_examined	Additional material examined. Canada. AB: Bilby, 11. vi. 1924, O. Bryant (1 ♀, USNM), BC: Ketchum L., 58 ° 22 ' N, 131 ° 45 ' W, 23. viii. 1960, W. W. Moss, CNC 391602 (1 ♂, CNC), Kinbasket Lake, 13. vi. 2008, Cooper Beauchesne and Assoc. Ltd., CNC 391604 (1 ♂, CNC), Toad R. Lodge, Mi 422, Alaska Hwy, 1371 m, 20. vii. 1959, E. E. MacDougall, CNC 481025 (1 ♀, CNC), MB: Aweme, 19. vi. 1917, N. Criddle, CNC 391576 (1 ♂, CNC), 24. viii. 1917, CNC 391580 (1 ♀, CNC), Churchill, 58 ° 46 ' N, 94 ° 10 ' W, 17. viii. 1952, J. G. Chillcott, Ecological data f-C, CNC _ Diptera 59194 (1 ex, CNC), Farnworth Lake, near Churchill, 58 ° 41 ' N, 94 ° 3 ' W, 26. vi. 1952, J. G. Chillcott, Ecological data F-B, CNC _ Diptera 97098 (1 ♂, CNC), Fort Churchill, 58 ° 46 ' N, 94 ° 10 ' W, 10. vi. 1952, J. G. Chillcott, Ecological data T-B 12, CNC _ Diptera 59199 (1 ex, CNC), 11. vi. 1952, Ecological data F-B 12, CNC _ Diptera 97094 (1 ex, CNC), 11. vii. 1952, Ecological data F-D 21, F-E 21, CNC _ Diptera 59201, CNC _ Diptera 97097, CNC _ Diptera 59202 (1 ♂ 2 ex, CNC), 17. vi. 1952, Ecological data F-B 12, T-D 18, CNC _ Diptera 97088, CNC _ Diptera 97090, CNC _ Diptera 97095, CNC _ Diptera 59195 - 59197 (7 ex, CNC), 23. vi. 1952, Ecological data T-G 11, CNC _ Diptera 97091 (1 ex, CNC), 24. vi. 1952, Ecological data T-C 18, CNC _ Diptera 59200, CNC _ Diptera 97092 (2 ex, CNC), 28. vi. 1952, Ecological data F-B 12, F-B 12, CNC _ Diptera 97087, CNC _ Diptera 97089, CNC _ Diptera 59193 (3 ex, CNC), 5. viii. 1952, Ecological data F-B 12, CNC _ Diptera 97095 (1 ex, CNC), 15. vii. 1949, L. A. Miller, CNC _ Diptera 97093 (1 ex, CNC), Mile 505, Hudson Bay Ry., J. G. Chillcott, 13. v. 1952, Biological data F-D, CNC 391575 (1 ♂, CNC), NL: Labrador, Cartwright, 26. vi. 1955, E. E. Sterns, CNC 391569 (1 ♂, CNC), Jack's Pond, 75 ', 19. vi. 1961, C. P. Alexander (1 ♂, USNM), Terra Nova N. P., 6. vii. 1961, C. P. Alexander (1 ♂, USNM), Gander, 17. vi. 1961, C. P. Alexander (1 ♂, USNM), Lomond, 12. vi. 1961, C. P. Alexander (1 ♀, USNM), NT: Salmita Mines, 64 ° 5 ' N, 111 ° 15 ' W, 8. vii. 1953, J. G. Chillcott, CNC 391598 (1 ♂, CNC), Yellowknife, 8. vi. 1953, J. G. Chillcott, CNC 391599, CNC 391600 (2 ♂, CNC), NS: Smith's Cave, 6. viii. 1925, A. Gibson, CNC 391581 (1 ♀, CNC), NU: N. W. T., Muskox Lake, 64 ° 45 ' N, 108 ° 10 ' W, 5. vi. 1953, J. G. Chillcott, CNC 391596, CNC 391597 (2 ♂, CNC), 5. vi. 1953, CNC 391585 (1 ♀, CNC), ON: Britannia, 1. vi. 1948, G. E. Shewell, CNC 391582 (1 ♀, CNC), Mer Bleue, 23. v. 2015, O. Lonsdale, CNC 440465 (1 ♀, CNC), Normandale, 42 ° 42 ' N, 80 ° 19 ' W, 2. vi. 1956, J. R. Vockeroth, CNC 391574 (1 ♂, CNC), 24. v. 1956, CNC 391573 (1 ♂, CNC), Ottawa, 17. vi. 1955, J. G. Chillcott, CNC 391571 (1 ♂, CNC), 6. vi. 1958, CNC 391572 (1 ♂, CNC), 20. vii. 1954, J. R. Vockeroth, CNC 391586 (1 ♀, CNC), 20. vii. 1959, CNC 391570 (1 ♂, CNC), Perth Road, 28. vii. 1964, J. R. Vockeroth, CNC 391603 (1 ♂, CNC), QC: Fort Chimo, 2. vii. 1954, W. R. Richards, CNC 391583 (1 ♀, CNC), Mi 139, Rte 58, La Verendrye Prov. Pk., 28. vi. 1965, D. M. Wood, CNC 391567 (1 ♂, CNC), Mistassini, Mistassini Post, 50 ° 25 ' N, 73 ° 53 ' W, 7. vii. 1956, J. R. McGillis, CNC 391584 (1 ♀, CNC), Port Chimo, 2. vii. 1954, W. R. Richards, CNC 391568 (1 ♂, CNC), YT: North Fork Pass, Ogilvie Mts., 18. vi. 1962, R. E. Leech, CNC 391590 (1 ♀, CNC), Otter Lake, 62 ° 30 ' N, 130 ° 25 ' W, 17. vii. 1960, J. E. H. Martin, CNC 391587 (1 ♀, CNC). Sweden. T. Ipm., Maunu, starr pa torvmosse [= sedge peat moss], nr 64, CNC 391605, CNC 391606 (1 ♂ 1 ♀, CNC). USA. AK: Unalakleet, 19. vii. 1961, B. S. Heming, CNC 391589 (1 ♀, CNC), 22. vi. 1961, R. Madge, CNC 391577, CNC 391595 (2 ♂, CNC), 24. vi. 1961, CNC 391578, CNC 391579, CNC 391601 (3 ♂, CNC), Umiat, 8. vii. 1959, R. Madge, CNC 391591 (1 ♀, CNC), CO: Nederland, 3 mi N, 2. vii. 1961, J. G. Chillcott, CNC 391588 (1 ♀, CNC), CT: Putnam Park, 18. vii. 1939, A. L. Melander (1 ♂ 1 ♀, USNM), ID: Chateolet, viii. 1915, A. L. Melander (1 ♂, USNM), IL: Savanna, 9. vii. 1917, J. M. Aldrich (1 ♂, USNM), Champaign Co., 12. vii. 1925, M. W. Shackleford, CNC 391592 (1 ♀, CNC), 19. vii. 1925, CNC 391593 (1 ♀, CNC), 26. vii. 1925, CNC 391594 (1 ♀, CNC), KS: Manhattan, 9. vi. 1934, C. W. Sabrosky, MA: Bedford, 20. vii. 1961, swamp, W. W. Wirth (1 ♂, USNM), Concord, 27. vii. 1961, marshy pond, W. W. Wirth (1 ♂ 2 ♀, USNM), MI: St. Joseph, 30. v. 1938, C. W. Sabrosky (2 ♀, USNM), MO: Columbia, 7. viii. 1968, Malaise, F. D. Parker (1 ♂, USNM), Boone Co., Columbia, 16 - 31. vii. 1968, Malaise trap, F. D. Parker (1 ♂, USNM), NH: Stinson Lake, 23. vii. 1961, W. W. Wirth (1?, USNM), NY: Allegany State park, 28. v- 3. vi. 1963, stream margin, W. W. Wirth (1 ♂ 2 ♀, USNM), Chautauqua Co., S. Dayton, 1. vi. 1963, marsh area, W. W. Wirth (1 ♂, USNM), OR: Lane Co., 8 mi S Florence, 29. vi. 1971, G. Steyskal (1 ♂, USNM), TX: Sonora Exp. Sta., 23. iii. 1955, W. W. Wirth (1 ♂, USNM), VA: Dead Run, 10. vi. 1922, W. L. McAtee (1 ♀, USNM), Chain Bridge, 10. ix. 1922, J. R. Malloch (1 ♀, USNM), Montgomery Co., Pandapas Pond, 37 ° 16 ' 30 N, 80 ° 28 ' 00 W, 14. v. 2001, O. Lonsdale (1 ♀, USNM), WA: Mt. Consititution, Orcas Id., 7. vii. 1905, J. M. Aldrich (1 ♀, USNM).	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
32FBED575288125042A82D91AED6D93D.taxon	description	Figs 660 - 666	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
32FBED575288125042A82D91AED6D93D.taxon	description	Description. Wing length 2.2 - 2.3 mm (♂), 2.2 - 3.1 mm (♀). Length of ultimate section of vein M 4 divided by penultimate section: 0.6 - 0.8. Eye height divided by gena height: 6.4 - 8.4. First flagellomere rounded, slightly higher than long, hairs slightly longer and denser along distal margin. Gena narrow, strongly angled upwards; cheek very narrow. Fronto-orbital plate slightly to moderately distinct, extending slightly medially to base of fronto-orbitals, widest at level of posterior ors. Lunule semi-circular. Apex of wing between R 4 + 5 and M 1. Chaetotaxy: Three ori; two ors. Ocellar and postocellar setae finer and slightly shorter than fronto-orbitals. Ocellar setulae reclinate, in one row. Four dorsocentrals, one presutural, decreasing in length anteriorly. Acrostichal seta short but well-developed. Six rows of acrostichal setulae. Fore tibia without lateromedial seta. Mid tibia with two strong lateromedial setae. Colouration: Body mostly dark brown to blackish; lunule brownish orange to yellowish with silvery pruinosity; antenna and frons between fronto-orbital plates sometimes slightly paler; gena sometimes paler or reddish, ventral margin with dark brown strip; postpronotum and notopleuron sometimes with small, limited orangish mottling; halter yellow; calypter entirely white. Notum subshiny. Genitalia: (Figs 660 - 666) External genialia, subepandrial sclerite, and hypandrium as described for N. posticata. Postgonite with anterior 1 / 2 relatively short and stout with apex cleft and single seta shifted anteriorly; posterior 1 / 2 pale and split. Phallus strongly twisted to right past phallophorus. Halves of basiphallus narrow, flat and curved ventrally around mesophallus at apex; left 1 / 2 with broad mediobasal plate-like extension reaching venter of shaft. Hypophallus broad and plate-like with lateral margin more thickly sclerotised and anterior surface with one pair of semi-circular fins medially. Paraphallus relatively dark, U-shaped, and wrapping around sides of mesophallus; paler and united ventromedially. Distiphallus with broad, dark, basal section that is confluent with mesophallus and ventromedially strengthened with longitudinal bands; apically with one pair of pale, diverging tubules that are ca. as long as basal section and appear to be haired, although surface is continuous. Mesophallus subovate, nearly as large as basal section of distiphallus, enclosing swollen apical section of ejaculatory duct; with large ventral fossa. Ejaculatory apodeme with wide asymmetrical base, stem narrow with apex grading into narrow, paler blade; sperm pump sclerotised along venter.	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
32FBED575288125042A82D91AED6D93D.taxon	distribution	Distribution. Canada: ON (Spencer, 1981). USA: widespread in United States, including Hawaii, but not Alaska. Argentina, Bahamas, Barbados, Bermuda, Bolivia, Brazil, Chile, Colombia, Costa Rica, Cuba, Guadeloupe, Grand Cayman, Guyana, Martinique, Mexico (Valenzuela-Escoboza et al. 2017), Peru, Puerto Rico, Dominican Republic, Saint-Martin, Trinidad, Uruguay, Venezuela (Martinez and Etienne 2002). Introduced to Madeira and Canary Islands (Cerny et al. 2018).	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
32FBED575288125042A82D91AED6D93D.taxon	materials_examined	Material examined. Canada. ON: Ottawa, 16. vii. 1976, P. Dang, leaf mine in Aster, CNC 480518 (6 puparia [gel capsule], CNC), St. Lawrence Is. Nat. Park, McDonald Is., 20. viii. 1976, W. Reid, Code 4472 - B, CNC 480517 (1 ♂, CNC). Chile. Elqui: Port Tres Cruces, Coquimbo, 30. x. 1957, L. E. Pena, CNC 480520 (1 ♀, CNC), Hda. Illapel, Coquimbo, 600 - 1000 m, 24 - 25. x. 1954, L. Pena, CNC 480196 (1 ♂, CNC). USA. FL: Miami-Dade Co., Redlands, 25 ° 31 ' N, 80 ° 30 ' W, 7. i. 2012, R. Diaz and J. McClurg, ex leaves of Mikania micrantha CNC 480525 - 480530 (2 ♂, 4 ♀, CNC), Palm Beach Co., Boynton Beach, 2. i. 2016, T. S. Feldman, Emilia em. 4. i. 2016, # CSE 2227, CNC 654342 - 654345 (2 ♂ 1 ♀ 1 puparium, CNC), HI: Oahu, Honolulu, 0 - 121 m, J. R. Vockeroth, ex blotch mine in Bidens pilosa leaf, em. 26. ix. 1966, CNC 480522, CNC 480521 (1 ♂ 1 ♀, CNC), MA: Worcester Co., Sturbridge, 42 ° 2 ' 28.84 " N, 72 ° 5 ' 32.47 " W, 5. vii. 2016, C. S. Eiseman, Erechtites hieraciifolia, em. 23 - 24. vii. 2016, # CSE 2797, CNC 654276 - 654289 (7 ♂ 6 ♀ 1 puparium, CNC), Nantucket Co., Nantucket, Little Sesachacha Pond, 2. ix. 2012, J. A. Blyth, ex Erechtites hieracifolia em. 3. x. 2012, # CSE 109, CNC 480523, CNC 480524 (2 ♂, CNC), Nantucket Co., Nantucket, N. Liberty St., 41 ° 17 ' N, 70 ° 6 ' W, 7. viii. 2012, C. S. Eiseman, ex Erigeron canadensis, em. 23. viii. 2012, # CSE 43, CNC 480555, CNC 480556 (1 ♂ 1 ♀, CNC), NC: Scotland Co., Laurinburg, St. Andrews University, 2. vi. 2015, em. 15 - 16. vi. 2015, T. S. Feldman, ex Erechtites hieraciifolia, # CSE 1622, CNC 653950 - 653953 (3 ♀ 1 puparium, CNC), OH: Hocking Co., South Bloomingville, Deep Woods Farm, 6. viii. 2016, C. S. Eiseman, Erigeron canadensis, em. 24. viii. 2016, # CSE 2935, CNC 654477 (1 ♂, CNC), Hocking Co., South Bloomingville, Deep Woods Farm, 6. viii. 2016, C. S. Eiseman, Erechtites hieraciifolia em. 26 - 29. viii. 2016, # CSE 2953, CNC 638902 (1 ♀, CNC), SC: Hilton Head Is., 12. vii. 1965, H. F. Howden, CNC 480519 (1 ♀, CNC), OK: Payne Co., Mehan, 36 ° 0 ' 51.62 " N, 96 ° 59 ' 48.28 " W, 30. v. 2016, em. 23. vi. 2016, M. W. Palmer, Grindelia squarrosa, # CSE 2615, CNC 634780, CNC 634781 (2 ♀, CNC).	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
6517A1B02813D03A3EBF090A828B8461.taxon	description	Figs 121 - 123, 667 - 674	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
6517A1B02813D03A3EBF090A828B8461.taxon	description	Description (Figs 121 - 123). Wing length 2.8 - 3.2 mm (♂), 2.9 - 3.5 mm (♀). Length of ultimate section of vein M 4 divided by penultimate section: 0.6 - 0.9. Eye height divided by gena height: 10.9 - 17.2. First flagellomere small, rounded, distal region with slightly longer, denser hairs that medially form an ill-defined to discrete denser subovate patch (similar to some Agromyza). Fronto-orbital plate evenly narrow, reaching level of inner base of fronto-orbitals. Gena very narrow, strongly angled upwards; cheek very narrow. Lunule semi-circular. Apex of wing between R 4 + 5 and M 1. Body subshiny, less so on fronto-orbital plate. Chaetotaxy: Two ori (anterior seta thinner, 2 / 3 - 3 / 5 length); two ors. Orbital setulae reclinate, in one row. Three strong dorsocentral setae postsuturally, decreasing in length anteriorly; enlarged setula sometimes close in front of anterior dorsocentral. Acrostichal seta strong. Acrostichal setulae in six rows. Fore tibia with weak lateromedial seta. Mid tibia with two strong lateromedial setae. Colouration: Body mostly dark brown; lunule dirty yellow with silvery pruinosity; antenna and sometimes legs slightly paler brown; scutum slightly paler laterally; apex of fore femur and sometimes base of fore tibia usually narrowly yellow, and if so, mid and hind legs sometimes similarly pigmented; male abdomen dirty white dorsally past tergite 3 with tergite 4 browner and with ill-defined brown anteromedial spot, but sometimes tergite 4 mostly dark with only posterior margin whitish, or tergite 3 with whitish pigment posterolaterally. Wing veins yellow with costa and marginal section of veins brownish. Genitalia: (Figs 667 - 674) Epandrium broad, shallow, free from surstylus. Surstylus apically rounded, appearing small and lobate externally, but continuing along inner surface of epandrium as elongate plate; mostly short setose with minute pale tubercles along inner margin. Cercus narrow, tapering apically. Subepandrial sclerite broad, dark, somewhat H-shaped with longer dorsal arms and ventromedial bar with ventral margin shallowly lobate and minutely textured; with one pair of very large, stout and striated ventral sublateral setae. Hypandrium subtriangular with irregular apex, inner lobe well-developed and setose, extending along outer margins of postgonite. Postgonite bare; well-developed with apex cleft and posterior region paler and ill-defined with arm nearly separate. Phallus strongly twisted to right past phallophorus. Halves of basiphallus strongly curved inwards at apex, which is lobate, weakly joined to remainder of sclerite, and with distal margin thick and dark; left sclerite subquadrate, wider than long, wrapped around venter of shaft; base of right 1 / 2 wider and with inner margin thicker and darker. Hypophallus broad, plate-like and with inner-medial emargination. Paraphallus forming irregular dorsal and lateral complex around base of meso / distiphallus. Mesophallus somewhat pear-shaped, fusing to ventromedial surface of distiphallus, with one pair of ventromedial fossae (basal fossa larger). Distiphallus with broad basal section that is slightly compressed dorsoventrally (more so towards base), and with large dorsomedial plate emerging before darker, shallower shelf supporting numerous minute spicules; apically with U-shaped arch directed distally that supports fringe of hairs that continue dorsally along a flat, elongate dorsoapical process to form a ring. Ejaculatory apodeme with wide asymmetrical base and short, ill-defined stem grading into small, pale blade; sperm pump with irregular, somewhat patchy sclerotisation on venter.	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
6517A1B02813D03A3EBF090A828B8461.taxon	distribution	Distribution. Canada: AB, BC, MB *, ON, QC. USA: Likely present throughout (Spencer and Steyskal 1986 b; Eiseman and Lonsdale 2018). Europe. Costa Rica, Venezuela (Martinez and Etienne 2002). Japan. Republic of Korea *.	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
6517A1B02813D03A3EBF090A828B8461.taxon	materials_examined	Material examined. Canada. AB: Kananaskis, For. Exp. Sta. Seebe, 18. vii. 1968, H. J. Teskey, CNC 480551 (1 ♀, CNC), MB: Western Manitoba, Riding Mountain National Park, Moon Lake hiking trail, 50 ° 53 ' N, 100 ° 3 ' W, 662 m, 13. vii. 2008, J. Cossey, N. Jeffery, J. Straka, CNC 480531 (1 ♂, CNC), NB: Kouchibouguac N. P., 11. viii. 1978, D. B. Lyons, Code- 7432 V, CNC 480548 (1 ♀, CNC), 24. viii. 1978, S. J. Miller, Code- 7485 W, CNC 480549 (1 ♂, CNC), NS: Highland Rd., 15 - 20 mi N Hunter, 8. vii. 1984, H. J. Teskey, CNC 480552 (1 ♂, CNC), ON: Ottawa, 45 ° 19 ' 1.20 " N, 75 ° 43 ' 12 " W, 90 m, 13. vi. 2016, J. E. O'Hara, Malaise trap, CNC 629594 (1 ♂, CNC), Griffith, 10. vii. 1991, J. R. Vockeroth, CNC 480545 (1 ♂, CNC), Mer Bleu [e], 5 mi E, 6. viii. 1966, D. D. Munroe, Malaise trap, CNC 480550 (1 ♀, CNC), Metcalfe, 29. vi. 1994, B. E. Cooper, CNC 480546 (1 ♂, CNC), Ottawa, Montfort Hosp. wood, 2. viii. 1993, J. R. Vockeroth, aerial sweep, CNC 480539 (1 ♂, CNC), 28. viii. 1993, CNC 480543 (1 ♀, CNC), 7. viii. 1993, CNC 480537 (1 ♀, CNC), 9. viii. 1993, CNC 480544 (1 ♀, CNC), Ottawa, damp second growth Acer - Betula wood, 19. ix. 2000, J. R. Vockeroth, CNC 480538 (1 ♀, CNC), 2. vii. 2003, CNC 480541, CNC 480542 (1 ♂ 1 ♀, CNC), 29. vi. 1994, CNC 480540 (1 ♀, CNC), QC: Gatineau Co., Masham Twp., 10 - 20. vii. 1974, D. M. Wood, CNC 480547 (1 ♂, CNC). Republic of Korea. Gangwon-do: Chuncheon Nam-myeoh, Balsan, Hongchron River., 37 ° 44 ' N, 127 ° 35 ' E, 14. vi. 2006, P. Tripotin, Malaise trap, large sandbar CNC 475540, CNC 475546 (2 ♂, CNC). USA. FL: Highlands Co., Sebring, Highlands Hammock State Park, 29. iii. 2013, em. 30. iv. 2013, C. S. Eiseman, ex Elephantopus elatus, # CSE 395, CNC 422917 - 422919 (2 ♀ 1 puparium, CNC), IA: Winneshiek Co., Cresco, Cold Water Creek Rd., 43 ° 25 ' 55.97 " N, 92 ° 00 ' 34.78 " W, 16. vii. 2015, em. 5. viii. 2015, C. S. Eiseman, ex Solidago gigantea, # CSE 1962, CNC 564703 (1 ♀, CNC), MA: Berkshire Co., Lenox, Mahanna Cobble, 12. vii. 2016, C. S. Eiseman, Euthamia graminifolia, em. 2. viii. 2016, # CSE 2836, CNC 654234 (1 ♂, CNC), Franklin Co., Northfield, 276 Old Wendell Rd., 11. x. 2013, C. S. Eiseman, ex. Solidago?, em. 27. iii. 2014, # CSE 1032, CNC 384732 (1 ♂, CNC), Franklin Co., Northfield, 276 Old Wendell Rd., 30. ix. 2013, C. S. Eiseman, ex. Euthamia graminifolia, em. 26. iii. 2014, # CSE 1027, CNC 384779, CNC 384780 (1 ♂ 1 ♀, CNC), Franklin Co., Northfield, Crag Mountain, 16. x. 2013, C. S. Eiseman, ex. Oclemena acuminata, em. 29. iii. 2014, # CSE 1039, CNC 384754 - 384757 (3 ♂ 1 ♀, CNC), Hampshire Co., Northampton Bikeway west of King St., 13. ix. 2013, C. S. Eiseman, ex. Symphyotrichum cordifolium, em. 29. iii. 2014, # CSE 1041, CNC 384734 (1 ♀, CNC), Hampshire Co., Northampton, Mineral Hills, 28. ix. 2013, C. S. Eiseman, ex. Symphyotrichum puniceum, em. 27. iii. 2014, # CSE 1031, CNC 384792 (1 ♀, CNC), Nantucket Co., Nantucket, Dead Horse Valley, 6. viii. 2012, C. S. Eiseman, ex Solidago latissimifolia, em. 26. viii. 2012, # CSE 45, CNC 480533 (1 ♂, CNC), Nantucket Co., Nantucket, Ice Pond Lot, 5. viii. 2012, C. S. Eiseman, leaf mine in Baccharis hamilifolia, em. 26. viii. 2012, # CSE 46, CNC 480534 (1 ♀, CNC), Nantucket Co., Nantucket, UMass field station, 11. vi. 2013, C. S. Eiseman, ex. Solidago altissima, em. 2. vii. 2013, # CSE 641, CNC 384796 (1 ♀, CNC), Nantucket Co., Squam Swamp, 12. vi. 2013, C. S. Eiseman, ex Solidago latissimifolia, em. 3. vii. 2013, # CSE 646, CNC 392660 (1 ♂, CNC), ME: Hancock Co., Penobscot, Battle Is., 18. vi. 2012, C. S. Eiseman, ex Solidago sempervirens CNC 480536 (1 ♂, CNC), MO: Williamsville, 14. vii. 1969, Malaise trap, CNC 480553, CNC 480554 (1 ♂ 1 ♀, CNC), Franklin Co., Gray Summit, Shaw Nature Reserve, 1. vii. 2015, em. 27. vii. 2015, C. S. Eiseman, ex Helianthus? hirsutus, # CSE 1869, CNC 564677 (1 ♂, CNC), NC: Scotland Co., Laurinburg, St. Andrews University, 15. v. 2015, em. 7. vi. 2015, T. S. Feldman, ex Solidago, # CSE 1592, CNC 564670 (1 ♂, CNC), NY: Essex Co., Upper Jay, nr. Bartlett Rd., 3. vi. 2012, C. S. Eiseman, ex Solidago CNC 480535 (1 ♂, CNC), OH: Delaware Co., Sunbury, Monkey Hollow Rd., 2. viii. 2016, C. S. Eiseman, Teucrium canadense em. 24. viii. 2016, # CSE 2934, CNC 638881 (1 ♂, CNC), Adams Co., West Union, Eulett Center (4274 Waggoner Riffle Road), 30. vii. 2016, C. S. Eiseman, Vernonia, em. 19. viii. 2016, # CSE 2917, CNC 654484, CNC 654485 (2 ♀, CNC), SC: Hilton Head Is., 12. vii. 1965, H. F. Howden, CNC 480532 (1 ♀, CNC), OK: Payne Co., Mehan, 13. x. 2015, M. W. Palmer, Elephantopus carolinianus em. 11. iv. 2016, # CSE 2363, CNC 653989 (1 ♂, CNC), 24. viii. 2015, M. W. Palmer, Elephantopus carolinianus em. 14. ix. 2015, # CSE 2056, CNC 654005 (1 ♂, CNC), TN: Davidson Co., Oak Hill, Radnor Lake, 22. viii. 2017, em. 19 - 23. ix. 2017, C. S. Eiseman, ex Polymnia canadensis, # CSE 4291, CNC 939947 - 939956 (4 ♂ 6 ♀, CNC), TX: Edwards Co., 1.3 miles NW of Campwood, 16. iii. 2017, em. 30. iv. 2017, C. S. Eiseman, ex Verbesina virginica, # CSE 3600, CNC 941261 (1 ♀, CNC).	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
0E0E0E67088393BBF15C7E0385CCC414.taxon	description	Figs 71, 72, 329 - 331	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
0E0E0E67088393BBF15C7E0385CCC414.taxon	description	Description (Figs 71, 72). Wing length 2.0 - 2.3 mm (♂ ♀). Length of ultimate section of vein M 4 divided by penultimate section: 0.6. Eye height divided by gena height: 5.0 - 5.7. Facial carina present with narrow medial bulb. Gena slightly angled forward, highest near midpoint of eye. Clypeus slightly tapering apically. Fronto-orbital plate very narrow, ocellar triangle nearly extending to posterior ori. Notum shiny. Chaetotaxy: Orbital setulae reclinate. Male vibrissal fasciculus absent. Two ori; two ors. Mid tibia with one posteromedial seta. Colouration: Body, including halter dark brown with gena paler. Wing veins yellow to brown. Calypter margin and hairs brown. Genitalia: (Figs 329 - 331) Inner posterodistal margin of epandrium with rows of minute tubercles. Distal margin of surstylus broad and truncated with rows of pointed tubercle-like setae on inner surface. Metepiphallus with subapical spine. Basiphallus with slender dorsoventral arms, partially fused to phallophorus. Hypophallus membranous, carinate. Distiphallus small and spade-shaped (broad basally and strongly tapered apically); apex with long, tapered flagellum that has base surrounded by light sclerotisations; mesophallus narrow, barely wider than duct. Ejaculatory apodeme stout, well-developed, with blade relatively narrow.	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
0E0E0E67088393BBF15C7E0385CCC414.taxon	distribution	Distribution. USA: DE *, FL, IA, MD *, MN, MS; stem mines only in IL and WI (Eiseman et al. 2021).	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
0E0E0E67088393BBF15C7E0385CCC414.taxon	materials_examined	Additional material examined. USA. DE: Newark, 6. ix. 1960, hollyhock, P. Burbutis (2 ♂, USNM), Newark, " 8 / 10 / 1953 " (1 ♂, USNM), IA: Winneshiek Co., Decorah, Trout Run Trail, 43 ° 18 ' 5.04 " N, 91 ° 48 ' 6.60 " W, 10 - 13. viii. 2017, J. van der Linden, Abutilion theophrasti, em. by 26. vii. 2017, # CSE 4940, CNC 1643668, CNC 1643669 (1 ♂ 1 ♀, CNC), MD: Montgomery Co., 4 mi SW of Ashton, 6. ix. 1981, Malaise trap, G. F. and J. F. Hevel (1 ♂, USNM).	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
5ADC716576347465B02DCA1644E6E349.taxon	description	Figs 332 - 336	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
5ADC716576347465B02DCA1644E6E349.taxon	description	Description. Wing length 1.7 mm (♂). Female unknown. Length of ultimate section of vein M 4 divided by penultimate section: 0.8. Eye height divided by gena height: 6.2. Eye slightly angled diagonally. Facial carina stout, slightly more narrow than stout bulb. Gena shallowly produced, projecting at 60 ° angle with margins straight. Clypeus narrow and truncated. Buccal cavity narrowed anteriorly with anterior margin straight. Distance between crossveins more than length of dm-m. Ocellar triangle and fronto-orbital plate (narrow) subshiny and ill-defined. Chaetotaxy: Male with vibrissal fasciculus ~ 1 / 2 length of gena. Two ori; two ors. Mid tibia with one posteromedial seta. Colouration: Body, including halter dark brown. Wing veins brown. Calypter margin and hairs brown. Genitalia: (Figs 332 - 336) Metepiphallus small, pale and with one pair of ventromedial spines. Epiphallic lobes clear with dark floating sclerite. Halves of basiphallus broadly fused at base with remainder of left sclerite absent; right sclerite relatively short and truncated with long distoventral process reaching venter. Mesophallus continuing distally as thick ridge that bifurcates apically; distiphallus pale and globular with inner surface minutely spinulose. Ejaculatory apodeme with long dark stalk and several annulations on striated blade; sperm pump with weak sclerotisation.	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
5ADC716576347465B02DCA1644E6E349.taxon	distribution	Distribution. USA: DC.	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
5ADC716576347465B02DCA1644E6E349.taxon	etymology	Etymology. The specific name refers to the fact that the type was collected in the United States capitol.	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
66F2D91A2CF7A724C96880EF9D349B3F.taxon	description	Figs 75 - 77, 82, 337 - 341	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
66F2D91A2CF7A724C96880EF9D349B3F.taxon	description	Description (Figs 75 - 77, 82). Wing length 1.7 - 1.9 mm (♂), 2.4 mm (♀). Length of ultimate section of vein M 4 divided by penultimate section: 0.9 - 1.0. Eye height divided by gena height: 6.8. Facial carina distinct with large medial bulb; carina as broad as bulb dorsally with sides diverging. Eye angled diagonally. Gena strongly produced anteriorly, forming an ~ 45 ° angle. Parafacial also strongly produced, visible laterally, and blending into gena. Fronto-orbital plate narrow. Clypeus strongly produced and narrowed anteriorly, with apex slightly expanded; sides bowed laterally, widest near base. Sides of ocellar triangle slightly concave; triangle subshiny but sometimes glossier. Crossveins separated by length of dm-m or less. Chaetotaxy: Male vibrissal fasciculus short and upcurved, not longer than genal process. Two ori (not three, as stated in Spencer and Steyskal 1986 b); two ors. Mid tibia without posteromedial setae. Colouration: Body, including halter dark brown. Fronto-orbital plate and ocellar triangle reddish in DE male. Calypter margin and hairs dark brown. Abdomen sometimes with faint coppery / golden shine. Wing veins brown. Genitalia: (Figs 337 - 341) Surstylus broad, rounded, short, slightly produced ventrally, inner-distal surface with two to three rows of tubercle-like setae. Hypandrium pointed apically, sides slightly bowed, basal arms sinuate. Postgonite typical, narrow with dorsal 1 / 2 weakly attached and dorsally directed. Phallophorus dark and constricted at base, narrow, venter longer, swollen and produced. Basiphallus with arms united at base, left arm short, weak, and ill-defined, right arm long, reaching level of mesophallus. Mesophallus cylindrical, clear, inserted ventromedially into distiphallus. Distiphallus, large, mostly empty with medial shelf-like process that is slightly angled apically; somewhat ovate in ventral view with basal 1 / 2 narrower and slightly longer; inner surface minutely textured basally, with longer spinules medially, apically with shallow tubercles and striations to left side and longer rounded spinules to right side; mostly open dorsally; left ventrodistal margin produced as characteristic lobe that may be modestly to strongly developed.	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
66F2D91A2CF7A724C96880EF9D349B3F.taxon	distribution	Distribution. Canada: BC, MB, ON, QC, SK. USA: CA, DE *, IN, LA, MA, OK, UT, VA *; possibly also AL, CT, IA, WI (Eiseman and Lonsdale 2018).	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
66F2D91A2CF7A724C96880EF9D349B3F.taxon	materials_examined	Additional material examined. Canada. MB: Aweme, 2. vi. 1916, N. Criddle, J. M. Aldrich (1 ♂, USNM). USA. DE: Newark, 1. vii. 1974 (1 ♂, USNM), IN: Evansville, 7. v. 1914, J. M. Aldrich (1 ♂, USNM), LA: Lake Charles, 9. vi. 1917, J. M. Aldrich (1 ♂, USNM), MA: Hampshire Co., Granby, Mt. Norwottuck, 27. iii. 2012, em. 11. iv- 24. iv. 2012, C. S. Eiseman, ex Antennaria plantaginifolia (5 ♂ 3 ♀, CNC), OK: Payne Co., Mehan, 36.014339 ° N, 96.996744 ° W, 10. xii. 2015, em. 15. i. 2016, M. W. Palmer, ex Antennaria plantaginifolia, # CSE 2214, CNC 653970 - 653972 (2 ♂ 1 ♀, CNC), 12. xii. 2015, em. by 12. i. 2016, M. W. Palmer, ex Antennaria plantaginifolia, # CSE 2216, CNC 653988 (1 ♂, CNC), 14. i. 2016, em. by 10 - 16. ii. 2016, M. W. Palmer, ex Antennaria plantaginifolia, # CSE 2237, CNC 654000 - 654002 (3 ♂, CNC), 27. ii. 2017, em. 18. iii- 15. vi. 2017, C. S. Eiseman, ex Antennaria plantaginifolia, # CSE 3229, CNC 939913 - 939917 (3 ♂ 2 ♀, CNC), VA: Luray, 24. vi. 1933, A. L. Melander (1 ♂, USNM), Page Co., 7 mi W of Lunay, 8. vii. 1978, G. F. Hevel (1 ♂, USNM), Shenandoah, Big Meadows, 3. vii. 1939, A. L. Melander (1 ♂, USNM).	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
18FACF14FB57D9EAFD56CFDEF230CB2A.taxon	description	Figs 342 - 345	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
18FACF14FB57D9EAFD56CFDEF230CB2A.taxon	description	Description. Wing length 2.2 mm (♂). Female unknown. Length of ultimate section of vein M 4 divided by penultimate section: 0.9. Eye height divided by gena height: 9.3. Facial carina relatively long below, nearly as wide as bulb and with diverging margins above. Clypeus narrow. Gena slightly projecting, forming almost a 60 ° angle. Ocellar triangle subshiny around ocelli. Fronto-orbital plate thin and subshiny. Buccal cavity narrowed anteriorly with anterior margin straight. Distance between crossveins more than length of dm-m. Chaetotaxy: Male with vibrissal fasciculus ~ 2 / 3 length of gena and strongly upcurved. Two ori on right side, three on left; two ors. Setae on mid tibia not visible, possibly absent. Five to six rows of acrostichal setulae. Colouration: Body, including halter dark brown. Calypter margin and hairs brown. Abdomen with weak coppery shine. Veins light brown. Genitalia: (Figs 342 - 345) Surstylus ~ 1 / 2 length of epandrium, rounded marginally and with tubercle-like setae on inner surface. Metepiphallus pale with one pair of ventromedial spines. Epiphallic lobe clear with dark sclerite. Halves of basiphallus broadly fused at base with remainder of left sclerite absent; right sclerite apically broad and truncated. Distiphallus dark and well-sclerotised with distinct basal and distal sections - basal section high, tapered to base, minutely spinulose internally and with internal dorsomedial hook; distal section shallower, with left margin receding and minutely tuberculedridged, and right 1 / 2 longer, internally spinulose and ill-defined apically.	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
18FACF14FB57D9EAFD56CFDEF230CB2A.taxon	distribution	Distribution. USA: MD.	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
18FACF14FB57D9EAFD56CFDEF230CB2A.taxon	etymology	Etymology. The specific epithet is derived from the Latin for coppery, referring to the colour of the abdomen, which has a weak metallic lustre.	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
03ECD4CC091FD9415D8484CCED857134.taxon	description	Figs 346, 347	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
03ECD4CC091FD9415D8484CCED857134.taxon	description	Description. Wing length 2.2 mm (♂), 1.9 - 2.2 (♀). Length of ultimate section of vein M 4 divided by penultimate section: 0.6 - 1.0. Eye height divided by gena height: 6.2 - 9.8. Facial carina (wide dorsally) and bulb distinct. Parafacial, seen laterally, broadly rounded and projecting past anterior margin of gena. Gena slightly produced anteriorly, forming an angle of ca. 70 ° and with dorsal and ventral margins straight, not curved. Clypeus broadest posteriorly; apex very narrow, produced. Buccal cavity narrowed anteriorly with margin straight. Ocellar triangle concave subapically. Frons slightly furrowed medially. Crossveins separated by more than length of dm-m. Chaetotaxy: Vibrissal fasciculus well-developed, slightly upcurved. Two ori; two ors. Mid tibia without posteromedial setae. Colouration: Body, including halter dark brown, but relatively pale compared to congeners. Fronto-orbital plate and outer margin of ocellar triangle beige. Wing veins white. Calypter margin light brown with hairs brown. Genitalia: (Figs 346, 347) Surstylus slightly <1 / 2 length of epandrium, with several marginal tubercle-like setae. Metepiphallus pale and largely desclerotised with one pair of small ventromedial spines. Proepiphallus pigmented medially, darker ventrally. Halves of basiphallus broadly fused at base with remainder of left sclerite absent; right sclerite relatively short and ill-defined; strongly bent ventrally (possibly an artifact of preservation). Distiphallus short, strongly spinulose internally and with base extending past that of mesophallus; membrane distal to phallus relatively broad, flat, and lightly sclerotised.	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
03ECD4CC091FD9415D8484CCED857134.taxon	distribution	Distribution. USA: MD.	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
03ECD4CC091FD9415D8484CCED857134.taxon	etymology	Etymology. The specific name indicates the similarity of this species to its possible sister taxon, Ophiomyia galii, which also feeds on Galium.	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
8466AF3DE06D1FAC17CE2C4EF16CD521.taxon	description	Figs 348 - 350	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
8466AF3DE06D1FAC17CE2C4EF16CD521.taxon	description	Description. Wing length 2.5 mm (♂). Female unknown. Length of ultimate section of vein M 4 divided by penultimate section: 0.9. Eye height divided by gena height: 7.5. Facial carina long and narrow with small subspherical bulb at midpoint. Gena not strongly produced, forming slightly <90 ° angle. Clypeus narrow with posterior arms curved outwards. Ocellar triangle shiny black, longer than wide and tapering anteriorly. Chaetotaxy: Orbital setulae reclinate. Male vibrissal fasciculus long, narrow, and slightly upcurved. Two ori; two ors. Mid tibia with one small posteromedial seta. Colouration: Body, including halter dark brown, with gena paler, ocellar triangle black, notum (excluding postpronotum and notopleuron) with faint green reflection, and femora paler on basal 3 / 5 with mid and hind femora yellowish ventrally on basal 2 / 5. Calypter white with hairs dark brown. Genitalia: (Figs 348 - 350) Surstylus narrow with few inner-marginal tubercle-like setae. Distal margin of hypandrium long and tapered. Metepiphallus very small and with one pair of spines. Halves of basiphallus very ill-defined apically, slightly fused at base and with left side shorter. Base of distiphallus strongly exceeding base of mesophallus, with short dorsal margin (curled inwards and with several very short inner spines) that is atrophied on left side; distoventral margin of distiphallus well-sclerotised medially, produced as apically converging ridges. Ejaculatory apodeme atrophied to base on one side, clear along margins and with well-developed medial rib.	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
8466AF3DE06D1FAC17CE2C4EF16CD521.taxon	distribution	Distribution. USA: VA.	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
8466AF3DE06D1FAC17CE2C4EF16CD521.taxon	etymology	Etymology. Gr. " of a marsh, dwelling in a marsh ", referring to the collection locality of the type.	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
D22DF518D8ABE4AE90450D9A84EF825F.taxon	description	Figs 351 - 355	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
D22DF518D8ABE4AE90450D9A84EF825F.taxon	description	Description. Wing length 2.1 mm (♂), 2.0 - 2.3 (♀). Length of ultimate section of vein M 4 divided by penultimate section: 0.7 - 1.0. Head largely collapsed in holotype. Eye height divided by gena height: 5.0 - 6.6. Frons entirely pruinose and ocellar triangle indistinct; gena rounded, not produced anteriorly and relatively narrow along entire length. Face with weak carina, barely dividing antennae. Clypeus with sides parallel. Chaetotaxy: Orbital setulae reclinate. Male vibrissal fasciculus absent. Two ori (sometimes three on one side); two ors. Mid tibia without posteromedial setae. Six rows of acrostichal setulae. Colouration: Body, including halter dark brown, with gena slightly paler. Wing veins brown. Calypter margin and hairs brown. Genitalia: Surstylus 1 / 2 length of epandrium, broadly rounded and with tubercle-like setae along inner-distal margin. Metepiphallus very small with serrated ridges and spines. Proepiphallus with dark patches in lateral extensions. Basiphallus curved in cross-section, ventrally curved and receding dorsomedially. Mesophallus broad, basal to distiphallus (not inserted ventromedially to distiphallus). Distiphallus straight, cup-like with internal folds. Ejaculatory apodeme large with blade pale and ovate, with pronounced medial rib.	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
D22DF518D8ABE4AE90450D9A84EF825F.taxon	distribution	Distribution. USA: VA.	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
D22DF518D8ABE4AE90450D9A84EF825F.taxon	etymology	Etymology. The specific epithet is Greek for bird nest, referring to the nest from where the holotype was collected.	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
F4071D4B76B9B5AB43362EC66A84FCC8.taxon	description	Figs 356 - 359	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
F4071D4B76B9B5AB43362EC66A84FCC8.taxon	description	Description. Wing length 2.0 - 2.5 mm (♂ ♀). Length of ultimate section of vein M 4 divided by penultimate section: 0.8 - 1.0. Eye height divided by gena height: 4.0 - 6.0. Facial carina distinct; bulb narrow, slightly wider than carina, with medial longitudinal furrow and dorsal 1 / 2 shiny. Clypeus strongly narrowed anteriorly. Anterior portion of buccal cavity narrowed, not much wider than clypeus. Gena slightly produced anteriorly, forming an ~ 80 ° angle. Notum subshiny. Ocellar triangle with sides convex, nearly meeting past midpoint and attaining anterior margin of frons. Fronto-orbital plate narrow and shiny, slightly widening around base of fronto-orbitals. Chaetotaxy: Male vibrissal fasciculus thick, slightly upcurved and not longer than gena. Two ori; two ors. Mid tibia with small posteromedial seta past midpoint. Colouration: Body, including halter dark brown to black, with nearly indistinct metallic sheen on abdomen, and with fronto-orbital plate and ocellar triangle paler. Wing veins brown. Calypter margin and hairs grey. Genitalia: (Figs 356 - 359) Surstylus narrow with several scattered rows of tubercle-like setae at apex and inner-distal surface. Metepiphallus with single pair of posteromedial spines. Basiphallus sclerotised basally on dorsobasal and left lateral surfaces, and with long right-lateral process that is widened at apex and attaining level of base of distiphallus. Distiphallus with blunt subconical base that extends posteriorly past narrow mesophallus and is internally spinulose on ventral and left ventrolateral surfaces; widest near midpoint, distally with spinulose right lateral chamber and thin distomedial chamber with sclerotised ventral surface and irregular internal folds. Ejaculatory apodeme relatively narrow with distal margin of blade reduced, pale and irregular.	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
F4071D4B76B9B5AB43362EC66A84FCC8.taxon	distribution	Distribution. USA: AL, AR, CA, CT, DE, FL, GA, IL, IN, KA, KY, LA, MA, MD, MI, MO, MS, NC, NH, NY, OH, OK, PA, SC, TN, TX, VA, WI, WV. Japan, Taiwan. Slovenia.	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
F4071D4B76B9B5AB43362EC66A84FCC8.taxon	materials_examined	Additional material examined. USA. MD: Anne Arundel Co., Davidsonville, 7. vii. 2011, on Hemerocallis sp., G. L. Williams (1 ♂ 11 ♀ [in alcohol], CNC; 1 ♂ 1 ♀, CSCA).	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
51E7A219A3E9A935C2C67E657D5EEE36.taxon	description	Figs 78 - 80, 360 - 366	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
51E7A219A3E9A935C2C67E657D5EEE36.taxon	description	Description (Figs 78 - 80). Wing length 2.1 - 2.4 mm (♂), 2.4 - 2.5 mm (♀). Length of ultimate section of vein M 4 divided by penultimate section: 0.7 - 1.0. Eye height divided by gena height: 8.0 - 8.4 (4.0 in one dissected VA male from Turkey Run). Facial carina and medial bulb distinct; carina as wide as bulb dorsally or slightly narrower, with sides usually parallel and never strongly diverging; bulb usually strongly to shallowly furrowed or heart-shaped. Clypeus narrowed and produced anteriorly. Anterior margin of buccal cavity narrowed and straight or rounded. Eye slightly angled diagonally. Gena slightly produced, forming an angle slightly <90 °. Ocellar triangle and fronto-orbital plate subshiny. Notum shiny. Chaetotaxy: Male vibrissal fasciculus distinct, nearly as long as gena, but only forming a discrete point in male with three ori on both sides. Two ori (sometimes three on one side, rarely on both sides); two ors. Mid tibia with one posteromedial seta. Colouration: Body, including halter dark brown. Abdomen sometimes with faint coppery / golden shine. Wing veins brown. Calypter margin and hairs dark brown. Genitalia: (Figs 360 - 366) Metepiphallus with one pair of ventromedial spines. Ventral subapical membrane around phallus pronounced and keel-like (less developed in male with three ori on both sides). Basiphallus with sclerotised dorsobasal plate and right lateral band. Base of mesophallus and distiphallus level. Distiphallus with small transverse sclerite at base of mesophallus; distiphallus subovate (slightly flattened apically) with inner basal margin spinulose and inner distal margin with shallow bumps; apex ill-defined.	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
51E7A219A3E9A935C2C67E657D5EEE36.taxon	distribution	Distribution. Canada: AB, NB *, ON, QC. USA: DE *, IN, MD *, PA *, VA *. Europe, Cyprus, Egypt, Israel, Turkey (Cerny, 2018).	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
51E7A219A3E9A935C2C67E657D5EEE36.taxon	materials_examined	Material examined. Canada. AB: Wabamun, caught on Solidago, 1 - 3. vii. 1966, K. A. Spencer, CNC 358537 (1 ♂, CNC), NB: Kouchibouguac N. P., 13. vii. 1977, J. F. McAlpine, IDEMA illustration, " L. Yuzyk July 1981 ", code- 6042 J, CNC 358542 - 358544 (2 ♂, 1 ♀, CNC), 23. v. 1977, Hanley and Cooper, code- 5113 Q, CNC 358545 (1 ♀, CNC), 9. vii. 1977, J. F. McAlpine, code- 6023 Q, CNC 358546 (1 ♂, CNC), ON: Midland, swampy woods, balsam poplar, 2. v. 1959, J. G. Chillcott, CNC 358551 (1 ♂, CNC), Ottawa, 22. vii. 1954, W. R. M. Mason, CNC 358550, CNC 358552 (1 ♂ 1 ♀, CNC), St. Lawrence Is. Nat. Park, Thwartway Is., 15. vii. 1976, A. Carter, code 4118 - J, CNC 358547 (1 ♂, CNC), 21. vii. 1976, W. Reid, code 4174 - N, CNC 358549 (1 ♀, CNC), 24. vii. 1976, W. Reid, code 4198 - L, CNC 358548 (1 ♀, CNC), QC: Beech Grove, 23. vi. 1951, J. F. McAlpine, CNC 358539, CNC 358540 (2 ♂, CNC), Harrington Lk., Gatineau Pk., 7. vi. 1954, E. E. Sterns, CNC 358541 (1 ♂, CNC). France. [Lower Normandy]: Verson b. Caen, 4880, 9. viii. 1942, Dr. H. Buhr. Nr., mine an Stachys recta CNC 358538 (1 ♂, CNC). USA. DE: Newark, spring 1974, R. W. Rust (1 ♂, USNM), IN: Lafayette, 6. vii. 1915, reared from catnip, issued 13. vii. 1915, Satterthwalt (1 ♂, USNM), Lafayette, swept from grass, " v- 17 ", J. M. Aldrich (1 ♂, USNM), Lafayette, " iv- 6 ", swept from wint. wheat (1 ♂, USNM), MD: Kent Is., " 35 - 13 - 4 ", Seek and Nixon (1 ♂, USNM), College Park, 28. v. 1939, C. T. Greene (1 ♂, USM), Beltsville, B. H. Braun, i. 1972 (1 ♂, USNM), i. 1972, ex. Solidago stems (2 ♂, USNM), i. 1972, reared ex. Eurosta solidaginis gall (1 ♂ 2 ♀, USNM), Beltsville, 12. iv. 1972, em. Indoors, B. H. Braun, ex. stem Solidago canadensis (1 ♂ 1 ♀, USNM), Montgomery Co., Clarksburg, Little Bennett Reg. Park, 21. ix. 1990, W. E. Steiner, M. J. and R. Molineaux (1 ♂, USNM), PA: Kimblesville, spring 1974, R. W. Rust (1 ♂, USNM), VA: Fairfax Co., Turkey Run Park, nr. mouth of Turkey Run, 38 ° 57.9 ' N, 7 ° 09.4 ' W, Malaise trap, 18 - 30. v. 2007, D. R. Smith (1 ♂, USNM).	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
11B58D08A049C4DE00EC22BAE5A50635.taxon	description	Figs 367 - 371	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
11B58D08A049C4DE00EC22BAE5A50635.taxon	description	Description. Wing length 2.2 - 2.3 mm (♂). Female unknown. Length of ultimate section of vein M 4 divided by penultimate section: 0.7 - 0.8. Eye height divided by gena height: 9.0 (non type). Eye angled diagonally. Facial carina thin along length with narrow medial bulb. Gena shallowly produced, forming a 45 ° angle. Clypeus produced and abruptly narrowed apically with apex truncated. Buccal cavity narrowed anteriorly with anterior margin nearly straight. Distance between crossveins more than length of dm-m. Ocellar triangle and fronto-orbital plate (narrow) subshiny. Head damaged. Chaetotaxy: Male with vibrissal fasciculus ~ 1 / 2 length of gena. Two ori (slightly thinner); two ors. Mid tibia with one weak posteromedial seta. Colouration: Gena relatively high, flat and pale in holotype. Body, including halter dark brown with frons darker. Wing veins brown. Calypter margin and hairs brown. Genitalia: (Figs 367 - 371) Epandrium broad, rounded, narrower in lateral view and slightly shorter to dorsum. Surstylus fused to epandrium, 1 / 2 length of distal region of epandrium; apex narrower, rounded; inner surface with two scattered rows of tubercle-like setae. Metepiphallus small and pale with one pair of ventromedial spines. Halves of basiphallus broadly fused at base; left sclerite short, weakly sclerotised and ill-defined, and right sclerite longer, truncated and with slight dextral curve. Distiphallus strongly spinulose on inner surface but with few other internal elaborations; slightly flattened and subquadrate in ventral view.	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
11B58D08A049C4DE00EC22BAE5A50635.taxon	distribution	Distribution. USA: MD, VA.	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
11B58D08A049C4DE00EC22BAE5A50635.taxon	etymology	Etymology. The specific name compounds the Latin for wide (latus) and penis (colis).	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
C94581F4CDEAD81BE4CED860085A660E.taxon	description	Figs 372 - 376	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
C94581F4CDEAD81BE4CED860085A660E.taxon	description	Description. Wing length 1.8 - 2.0 mm (♂) 2.0 - 2.1 mm (♀). Length of ultimate section of vein M 4 divided by penultimate section: 0.7 - 1.1. Eye height divided by gena height: 6.2 - 7.8. Eye slightly oblique, but still relatively round. Arista short pubescent. Ocellar triangle nearly reaching level of posterior ori. Ocellar plate narrow. Facial carina well-developed, medially with smooth, subshiny, ovate bulb; carina above bulb as wide as bulb, with shallow medial groove continuing onto lunule; lunule height subequal to width of carina dorsally. Genal process nearly as long as high, forming an approximate 60 ° angle. Clypeus with arms bowed inwards anteriorly, meeting at small subquadrate anteromedial extension that is shallowly concave anteriorly and with one pair of minute anterolateral points. Crossveins separated by length of dm-m or slightly less. Chaetotaxy: Male vibrissal fasciculus thick and upcurved, ~ 2 / 3 length of gena. Two ori (sometimes one additional ori present on one side); two ors. Two dorsocentral setae, anterior seta ~ 4 / 5 length of posterior. Acrostichal setulae in six scattered rows. Mid tibia with one or no posteromedial setae. Colouration: Setae black. Body dark brown, including halter. Calypter, including margin, light brown; hairs dark brown; ocellar triangle and ocellar plate paler brown. Genitalia: (Figs 372 - 376) Metepiphallus pale and narrow with one pair of ventromedial spines. Epiphallic lobes clear with dark sclerite. Epandrium shallow, venter slightly curved anteriorly, fused to surstylus. Surstylus small, short, subtriangular, with tubercle-like setae in three rows that narrow to one anteriorly. Hypandrium subtriangular with pointed apex and bowed basal arms. Phallophorus with narrower, darker base, short dorsum, and higher, longer venter; seen ventrally, venter with one pair of dark ridges. Basiphallus with weak, short left lateral arm connected basally to longer, better-defined right lateral arm that does not reach level of mesophallus. Mesophallus narrow, cylindrical, inserted ventromedially into larger distiphallus; base of mesophallus approximately level with base of distiphallus. Base of distiphallus (overlapping mesophallus) with broad, laterally bulging anterior section that abruptly narrows to a small rounded point apically; basal section with minute divots towards apex and several small internal spinules in right anterolateral section; basal section with broad opening dorsally bearing characteristic large flared membranous fold that encompasses broad, curved, strongly produced plate; distal section of distiphallus with distinct sclerotised medial tubule that is flanked ventrally by one pair of weakly differentiated and minutely textured hemispheres. Ejaculatory apodeme with short, narrow stem emerging from wide asymmetrical base that continues onto pale, irregularly sclerotised blade that is atrophied to one side; sperm pump with dark transverse bar ventrally.	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
C94581F4CDEAD81BE4CED860085A660E.taxon	distribution	Distribution. Canada: NB *, QC *. USA: CT, DE *, MA, MD *, ME, NY, VA *, VT; possibly also CO, MN, OH (Eiseman and Lonsdale 2018). Europe. Northeastern China. Turkey. Japan. Canary Islands. Oman. Yemen	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
C94581F4CDEAD81BE4CED860085A660E.taxon	materials_examined	Additional material examined. Estonia. Tallinn, 18. vii. 1995, M. v. Tschirnhaus, ex Solidago (1 ♂, CNC). Canada. NB: Kouchibouguac National Park, 46 ° 48 ' 49.90 " N, 64 ° 55 ' 40.02 " W, 22. v. 1977, Hanley and Cooper, Code - 5111 O, CNC 758931 (1 ♀, CNC), 23. v. 1977, Code - 5113 Q, CNC 758930 (1 ♂, CNC), QC: Old Chelsea, 45 ° 30 ' 0.40 " N, 75 ° 48 ' 52.80 " W, 30. v. 1952, J. F. McAlpine, CNC 758932 (1 ♂, CNC). USA. CT: Litchfield Co., Canaan, 21. vii. 2015, em. 29. vii. 2015, C. Vispo, ex Solidago canadensis, # CSE 2168, CNC 564684 (1 ♀, CNC), DE: Newark, 1. vii. 1974 (1 ♂, USNM), MA: Berkshire Co., Lenox, Parsons Marsh, 20. vi. 2017, em. 24. vi. 2017, C. S. Eiseman, ex Solidago patula, # CSE 3853, CNC 939713 (1 ♂, CNC), Franklin Co., Montague, Montague Plains Wildlife Management Area, 8. vi. 2017, em. 21. vi. 2017, C. S. Eiseman, ex Solidago arguta, # CSE 3843, CNC 939720 (1 ♂, CNC), Northfield, 276 Old Wendell Rd., 10. x. 2016, em. 19. iv. 2017, C. S. Eiseman, ex Eurybia divaricata, # CSE 3524, CNC 939673 (1 ♂, CNC), 2. vii. 2017, em. 15. vii. 2017, ex Euthamia graminifolia, # CSE 3956, CNC 939661 (1 ♂, CNC), Hampshire Co., Pelham, Butter Hill, 21. vi. 2013, em. 24. vi. 2013, C. S. Eiseman, ex Solidago caesia, # CSE 591 (2 ♀, CNC), South Hadley, near Lithia Springs Reservoir, 11. v. 2016, em. 2. vi. 2016, C. S. Eiseman, ex Solidago arguta, # CSE 2536 (1 ♀, CNC), Middlesex Co., Shirley, 42.556117, - 71.613381, 3. viii. 2017, em. 9. viii. 2017, C. S. Eiseman, ex Solidago gigantea, # CSE 4095, CNC 939727, CNC 9397278 (1 ♂ 1 ♀, CNC), Nantucket Co., Nantucket, Gardner Farm, 13. vi. 2013, em. 24. vi. 2013, C. S. Eiseman, ex Solidago latissimifolia, # CSE 600 (1 ♀, CNC), Nantucket, Squam Swamp, 12. vi. 2013, em. 26 - 30. vi. 2013, C. S. Eiseman, ex Solidago latissimifolia, # CSE 609, CNC 384817, CNC 384818 (1 ♂ 1 ♀, CNC), ME: Knox Co., Camden, Bald Mountain, 5. x. 2013, C. S. Eiseman, ex. Oclemena acuminata em. 20. iii. 2014, # CSE 1011, CNC 384784 (1 ♂, CNC), VA: Montgomery Co., Christiansburg, 2. vi. 1962, J. G. Chillcott (1 ♂, CNC), VT: Chittenden Co., South Burlington, Winooski Gorge, 29. vi. 2014, ex. Solidago flexicaulis, em. 10. vii. 2014, C. S. Eiseman, # CSE 1167, CNC 384885 (1 ♂, CNC).	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
0A224572BC10440F59827011D61034CD.taxon	description	Figs 64 - 66, 377 - 382	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
0A224572BC10440F59827011D61034CD.taxon	description	Description (Figs 64 - 66, 377). Wing length 2.0 - 2.2 mm (♂), 2.1 - 2.5 mm (♀). Length of ultimate section of vein M 4 divided by penultimate section: 0.8 - 1.0. Eye height divided by gena height: 5.4 - 7.4. Face short, with carina broad and diverging above large, semispherical bulb. Gena stout and produced anteriorly; highest subapically. Clypeus slightly narrowed anteriorly (more pronounced in female). Anterior margin of buccal cavity broad. Anterior angle of ocellar triangle long and tapered, nearly reaching anterior margin of frons. Frons minutely pitted with ocellar triangle and fronto-orbital plate shiny. Fronto-orbital plate and parafacial slightly projecting and continuing under eye as distinct cheek. Body shiny. Distance between crossveins approximately as long as dm-m. Chaetotaxy: Orbital setulae proclinate and relatively long and dense. Male vibrissal fasciculus absent. Two ori; one or two ors present in female, absent in male. Three dorsocentral setae, slightly decreasing in length anteriorly. Mid tibia with one small posteromedial seta. Colouration: Body, including halter dark brown to black. Calypter margin and hairs dark brown. Wing veins light brown to brown, sometimes whitish. Genitalia: (Figs 378 - 382) Surstylus 1 / 2 - length of epandrium at base, narrowing apically with apex broadly rounded; height approximately equal to length at base; with irregular clusters of tubercle-like setae apically and anteriorly on inner surface. Metepiphallus small with three pairs of medial and basal spines. Phallophorus slightly elongate with constricted base. Halves of basiphallus broadly fused at base with short, ill-defined left lateral sclerite and slightly longer right lateral sclerite. Distiphallus with base extending past base of mesophallus; minutely tuberculate dorsally and apically, inner surface minutely spinulose laterally near base, with small dorsomedial hook and distal section divided into two hemispheres. Ejaculatory apodeme with well-developed stalk, blade with striations and base with thin membranous tubule.	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
0A224572BC10440F59827011D61034CD.taxon	distribution	Distribution. Across northern North America from YT to QC, south to northern CA, CO, NM and NC (Eiseman and Lonsdale 2018). Europe, Japan, Turkey, Kazakhstan (Cerny 2018).	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
0A224572BC10440F59827011D61034CD.taxon	materials_examined	Additional material examined. Canada. BC: nr. Golden Rest Area, rt. 1, 20. vi. 2001, C. R. Bartlett (1 ♀, UDCC), ON: Ottawa, 45 ° 19 ' 1.20 " N, 75 ° 43 ' 12 " W, 90 m, 7. vi. 2016, J. E. O'Hara, Malaise trap, CNC 629668, CNC 629688 (2 ♀, CNC), SK: Duck Lake, 15. iv. 1924, K. M. King, CNC 358553 (1 ♀, CNC). USA. CT: Redding, 10. v. 1930, A. L. Melander (2 ♀, USNM), DE: Pike Creek, 25. vi. 1975, D. Buntin (1 ♀, UDCC), Bridgeville, 8. viii. 195, H. E. Milliron, on peppers (1 ♀, UDCC), New Castle Co., Newark, Thorn Lane beside RR tracks, 18. vii. 1993, field sweep, D. S. Chang (1 ♀, UDCC), UD Newark Farm, 39 ° 40 ' 14.81 " N, 75 ° 44 ' 54.89 " W, 18. ix. 2007, sweep net, M. Frye (1 ♀, UDCC), Newark, UD Farm, 5. x. 1997, W. P. Brown, sweep net (1 ♀, UDCC), Newark, UofD Gardens, 3. viii. 2007, T. Cooper (1 ♀, UDCC), Sussex Co., Millville, Route 26, 5. x. 1997, M. J. Harrison (1 ♀, UDCC), ID: Lafayette, 30. iv. 1915, swept from grass, J. M. Aldrich (1 ♀, USNM), IL: Chicago, A. L. Melander (1 ♀, USNM), MA: Franklin Co., Northfield, 276 Old Wendell Rd., 5. v. 2016, C. S. Eiseman, Taraxacum officinale, 20 - 21. v. 2016, # CSE 2476, CNC 654194 (1 ♂, CNC), MD: Temple Hills, 17. vii. 1978, G. F. Hevel (1 ♀, USNM), Lavale, 9. v. 1970, G. Steyskal (1 ♂, USNM), Montgomery Co., 4 mi SW of Ashton, G. F. and J. F. Hevel, 18. iv. 1987 (1 ♀, USNM), 25. iv. 1987 (1 ♀, USNM), 15. viii. 1982 (1 ♂ 2 ♀, USNM), 17. vii. 1978 (1 ♂, USNM), 18. iv. 1987 (1 ♂, USNM), Colesville, 31. vii. 1975, W. W. Wirth (2 ♂, USNM), Colesville, 31. viii. 1973, Malaise trap, W. W. Wirth (1 ♂ 2 ♀, USNM), P. G. Co., Temple Hills, 17. vii. 1978, G. F. Hevel (2 ♂, USNM), Camp Springs, 8. vii. 1979, G. F. Hevel (2 ♀, USNM), Oxon Hill, G. F. and S. Hevel, 22. vii. 1978 (1 ♀, USNM), 24. vii. 1978 (1 ♀, USNM), Frederick Co., 1 mi N, 4.7 mi W of Point of Rocks, 11. vii. 1982, G. F. and J. F. Hevel (1 ♀, USNM), MI: Chippewa Co., 3. vi. 1937, R. andK. Dreisbach (1 ♀, USNM), Ingham Co., E Lansing, 22. vii. 1963, F. E. Giles (1 ♀, USNM), E. Lansing, C. Sabrosky, 3. vi. 1937 (1 ♀, USNM), 29. v. 1937 (1 ♀, USNM), NM: Cloudcroft, 26. v. 1964, J. F. McAlpine, CNC 358586 (1 ♂, CNC), NY: Ithaca, A. L. Melander, 28. v. 1937 (1 ♀, USNM), 31. v. 1913 (1 ♀, USNM), White Plains, 1. v. 1909, Bueno, A. L. Melander (1 ♀, USNM), Geneva, 28. v. 1914, A. L. Melander (1 ♂ 5 ♀, USNM), Chazy, 8. viii. 1930, A. L. Melander (1 ♀, USNM), OH: Oxford, Mallot's Lawn, 12. x. 1978, B. A. Steinly (1 ♀, USNM), PA: Chester Co., Toughkenamon, 39 ° 51 ' 37, 75 ° 46 ' 58, 14. ix. 2007, E. Lake Stroud Res. Ctr. (1 ♀, UDCC), Bucks Co., Pineville, 24. v. 1969, J. W. Adams (1 ♀, USNM), TN: Gt. Smokies N. P., Chimneys, 20. vi. 1941, A. L. Melander (1 ♀, USNM), Sevier Co., Rte. 441, 3 mi NW NC / TN border, Great Smokey Mt. N. P., 35 ° 38.3 ' N, 83 ° 27.8 ' W, 4500 ', S. D. Gaimari, 27. v. 1999 (1 ♀, USNM), VA: Pulaski, 7. v. 1979, G. Steyskal (4 ♂ 1 ♀, USNM), Montgomery Co., Mill Cr., Rt. 785 NE Blacksburg, 30. iv. 1978, C. M. and O. S. Flint (1 ♀, USNM), Giles Co., 10 km NW Blacksburg, Bald Knob, 18. v. 1997, S. A. Marshall (1 ♂, DEBU), Butt Mtn., 8 km NW Blacksburg, 21. v. 2005, S. A. Marshall (1 ♂, DEBU).	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
FDA94F835EACF658DE0431BFAAE337F3.taxon	description	Figs 383 - 387	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
FDA94F835EACF658DE0431BFAAE337F3.taxon	description	Description. Wing length 2.1 - 2.4 mm (♂), 2.5 mm (♀). Length of ultimate section of vein M 4 divided by penultimate section: 0.8 - 0.9. Eye height divided by gena height: 2.5 - 4.2. Facial carina stout with sides diverging above, thin below; bulb well-developed, sometimes with shallow medial furrow. Gena shallowly produced, forming 70 ° - 80 ° angle. Clypeus produced and strongly narrowed apically. Buccal cavity narrowed anteriorly with anterior margin small and straight. Distance between crossveins as long as dm-m or less. Ocellar triangle and fronto-orbital plate shiny. Excluding VA specimen, fronto-orbital plate and parafacial strongly projecting. Chaetotaxy: Male with vibrissal fasciculus ~ 1 / 2 length of gena. Three ori; two ors; sometimes only one ors or with two ori on one side only. Mid tibia with one weak distomedial seta. Colouration: Body, including halter dark brown, but sometimes portions of ocellar triangle and fronto-orbital plate paler. Wing veins brown. Calypter margin and hairs brown. Genitalia: (Figs 383 - 387) Metepiphallus small with one pair of ventromedial spines and several free basal sclerites. Epiphallic lobes with pale basal pigmentation. Halves of basiphallus fused at base, with left sclerite shorter, pale, and ill-defined, and right sclerite well-developed. Distiphallus extremely wide, bilobed and ridged, resembling a brain in ventral view; base high, and distal ridged portion strongly flattened with pale dorsomedial process. Ejaculatory apodeme with stalk short, blade pale and subovate with strong medial rib.	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
FDA94F835EACF658DE0431BFAAE337F3.taxon	distribution	Distribution. Canada: AB, MB, QC, NT. USA: CO, IL *, MS *, VA *.	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
FDA94F835EACF658DE0431BFAAE337F3.taxon	materials_examined	Additional material examined. USA. CO: Boulder, Flagstaff Cn., 1767 m, 10. vi. 1961, C. H. Mann, CNC 358559 (1 ♂, CNC), IL: nr. Forest City, forest, 21. v. 1953, J. F. McAlpine, CNC 358560 - 358562 (3 ♂, CNC), MS: Winston Co., Noxubee Nat. Wildlife R., Tripletts, 33 ° 16 ' N, 88 ° 51 ' W, pasture road, 19. v. 2013, J. M. Cumming, CNC 358563 (1 ♂, CNC), VA: Veitch, 9. vi. 1912, J. R. Malloch (1 ♂, USNM).	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
0C4B99C2F47899523EB0D12F32C58780.taxon	description	Figs 69, 70, 388 - 393	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
0C4B99C2F47899523EB0D12F32C58780.taxon	description	Description (Figs 69, 70). Wing length 2.1 - 2.4 mm (♂), 2.3 - 2.5 mm (♀). Length of ultimate section of vein M 4 divided by penultimate section: 1.0 - 1.2. Eye height divided by gena height: 4.5 - 5.4. Facial carina thin and shallow with bulb absent. Gena strongly recessed anteriorly, highest behind midpoint of eye. Fronto-orbital plate and parafacial strongly projecting and continuing under eye as distinct cheek; parafacial shiny. Ocellar triangle shiny. Clypeus narrow with sides parallel to slightly bowed. Buccal cavity broad. Distance between crossveins narrow. Costa extending just past R 4 + 5. Chaetotaxy: Male vibrissal fasciculus absent. Two or three ori; two ors. Mid tibia with one posteromedial seta. Colouration: Body, including halter dark brown and shiny. Calypter margin and hairs dark brown. Genitalia: (Figs 388 - 393) Epandrium with shallow ventromedial point. Surstylus small and lobate / subtriangular, folded inwards just below midpoint of anterior margin of epandrium, and with scattered, marginal tubercle-like setae. Hypandrium relatively broad with sides parallel at base and arms meeting posteriorly; with stout apical process; additional circular sclerite absent. Metepiphallus short with one pair of basal spines and one pair of basolateral arms. Halves of basiphallus separate and broadly twisted dextrally. Mesophallus broad, inserted slightly off base of distiphallus towards its venter. Distiphallus cup-shaped with ventromedial suture continuing onto mesophallus; with one pair of ventral processes with inner margin shallowly spinulose. Ejaculatory apodeme asymmetrical and relatively thin distally, with dark, well-developed stem and medial rib.	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
0C4B99C2F47899523EB0D12F32C58780.taxon	distribution	Distribution. Canada: BC *, ON, QC. USA: Widespread. Europe.	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
0C4B99C2F47899523EB0D12F32C58780.taxon	materials_examined	Material examined. Germany. Berlin, from C. Schirmer (1 ♂ ♀, USNM), Crossen a. O., 22. v. 1932, Hering, Mine an Asparagus officinalis No. 3871, CNC 358570 (1 ♂, CNC). Canada. BC: Armstrong, collected from asparagus, 18. v. 1976, 76 - 535, CNC 358571 (1 ♂, CNC), ON: Ottawa, 25. v. 1941, G. Matthewman, CNC 358565 - 358569 (2 ♂ 3 ♀, CNC), Simcoe, 2. vi. 1989, G. E. Shewell, CNC 358564, CNC 358572 - 358574 (2 ♂, 2 ♀, CNC), Vineland, 20. vi. 1937, G. E. Shewell, CNC 358577 (1 ♀, CNC), QC: Abbotsford, 2. ix. 1936, G. E. Shewell, CNC 358576 (1 ♀, CNC), 24. vii. 1936, CNC 358575 (1 ♀, CNC). USA. CA: Lakeside, 4. iv. 1944, Asparagus (1 ♂ 1 ♀, USNM), DC: " DC " (1 ♂, USNM), DE: Rising Sun, 12. v. 1953, on asparagus, D. MacCreary (1 ♂, UDCC), Georgetown, 17. v. 1955 (1 ♂ 2 ♀, UDCC), Stanton, 7. viii. 1951 (1 ♂ 1 ♀, UDCC), GA: Tifton, 24. ix. 1896, A. L. Melander (1? [head and abdomen missing], USNM), IA: Pleasant Valley, 29. vii. 1931, H. M. Harris (1 ♀, USNM), IL: Chicago, A. L. Melander (1 ♂, USNM), MD: Cabin John, 10. v. 1897 (2 ♂, USNM), Chillum, 6. iii. 1914, collected on Asparagus (1 ♂, USNM), Colesville, 20. viii. 1975, Malaise trap, W. W. Wirth (1 ♂, USNM), College Park, " 6 - 29 ", C. T. Greene (2 ♂, USNM), College Park, 10. viii. 1914, collected on potato, W. H. White (1 ♂, USNM), College Park, " 6 - 29 ", C. T. Greene (1 ♀, USNM), MI: E Lansing, 1. vi. 1929, on asparagus, R. W. Pettit (2 ♂ 1 ♀, USNM), Grand Rapids, 13. iv. 1931, C. W. Sabrosky (1 ♂ 1 ♀, USNM), NY: Ithaca, A. L. Melander (2 ♂ 2 ♀, USNM), No. 2, Williamsville, Swp. 1, beans, 25. vii. 1964 (1 ♂, UDCC).	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
3E162A24CF914A0D01E09FA4C9B486D8.taxon	description	Figs 394 - 398	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
3E162A24CF914A0D01E09FA4C9B486D8.taxon	description	Description. Wing length 1.8 - 1.9 mm (♂ ♀). Length of ultimate section of vein M 4 divided by penultimate section: 0.8. Eye height divided by gena height: 11.0. Facial carina slender, distinct, with slender, smooth, matt facial bulb; carina not expanding immediately above bulb. Eye angled diagonally. Genal process with a broad, relatively short base approximating 60 °, but apex much narrower, extending as a fine point. Clypeus strongly extended anteriorly as narrow process. Ocellar triangle with lateral margins straight to slightly concave, ending between ori and ors, but with sides produced as shallow grooves appearing sometimes to extend to lunule. Anterior margin of buccal cavity narrowed and straight. Notum shiny; bare between dorsocentrals. Crossveins separated by slightly more than length of dm-m. Chaetotaxy: Male vibrissal fasciculus thick and upcurved, pointed, at least 2 / 3 length of gena. Two ori; two ors. Region between dorsocentrals smooth or with only a few anteromedial setulae. Mid tibia without posteromedial setae. Colouration: Body, including halter dark brown. Gena and inner margin of fronto-orbital plate sometimes light brown. Wing veins dirty white to brown. Calypter margin and hairs dark brown. Genitalia: (Figs 394 - 398) Surstylus narrow with few apical tubercle-like setae. Proepiphallus with lateral lobes clear with base lightly pigmented. Left sclerite of basiphallus very short, pale, and ill-defined apically, separate from right sclerite; right sclerite elongate, exceeding base of mesophallus. Base of mesophallus extending far past base of distiphallus excluding distinctive long basal tail-like process; distiphallus internally spinulose with paired ventral sclerotised ridges, subovate in ventral view and chevron-shaped in lateral view; with small dorsomedial spine. Ejaculatory apodeme with very large, pale blade past small flattened stem.	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
3E162A24CF914A0D01E09FA4C9B486D8.taxon	distribution	Distribution. Canada: MB. USA: CA, DE *, TX. Bahamas. Reported by Frick (1959) as widespread from MI to WA.	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
3E162A24CF914A0D01E09FA4C9B486D8.taxon	materials_examined	Additional material examined. USA. DE: Newark, 12. ix. 1960, spider bush, D. F. Bray (1 ♂, USNM).	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
7922FD3EFC40BE156628B2CA96D3B82A.taxon	description	Figs 399 - 404	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
7922FD3EFC40BE156628B2CA96D3B82A.taxon	description	Description. Wing length 1.9 - 2.7 mm (♂), 2.7 - 3.3 mm (♀). Length of ultimate section of vein M 4 divided by penultimate section: 0.6 - 0.8. Eye height divided by gena height: 2.5 - 4.3. Fronto-orbital plate varying from slightly visible laterally to relatively pronounced; parafacial sometimes produced, continuing under eye as broad cheek. Gena relatively high and shallowly rounded, only slightly angled anteriorly to produce shallow ventromedial angle. Facial carina indistinct to absent, but antennal bases always slightly separated; bulb slender, not strongly pronounced, usually appearing as slight swelling below antennal bases. Clypeus stout and parallel-sided. Ocellar triangle and fronto-orbital plate shiny. Crossveins narrowly separated. Chaetotaxy: Male vibrissal fasciculus absent. Two to three ori (orbital setula between ori variably strengthened); two ors. Mid tibia with one posteromedial seta. Colouration: Body, including halter dark brown with gena paler. Wing veins light brown. Calypter margin and hairs brown. Abdomen sometimes with very faint, almost indistinct metallic lustre - in NY male, tint greenish with tergites 1 - 3 bluish. Genitalia: (Figs 399 - 404) Externally as described for O. abutilivora, excluding texturing on epandrium. Phallophorus strongly compressed laterally. Basiphallus ring-shaped and with adjoining dorsobasal membrane lightly sclerotised. Distiphallus subspherical with anterior and ventral margins thick; ventrally bordered by light transverse sclerite (upcurved and pointed at sides; highly faded in tiliae holotype, likely resulting from method of preservation as other specimens reared from Tilia with this sclerite moderately to well-developed), long thin membranous flagellum (pointed ventrally) and large carinate, membranous hypophallus. Variation: VPIC male with clypeus appearing broadly rounded (actually bulbous medially), but anterior corners still present. Cheek only evident anteriorly. Two ori, closely spaced anteriorly. Anteroventral membrane on phallus reduced, with " wings " of distiphallus barely evident.	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
7922FD3EFC40BE156628B2CA96D3B82A.taxon	distribution	Distribution. Canada: AB, ON *, QC. USA: CO, IL, IN, MA (Eiseman and Charney 2010), MO, NY *, PA, VA.	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
7922FD3EFC40BE156628B2CA96D3B82A.taxon	materials_examined	Additional material examined. Canada. ON: Brantford, 24. i. 1978, " 775 - 2306 - 01 ", " Tilia R'rd " (1 ♂ 2 ♀, CNC), Col. 17. viii. 1977, Host Tilia americana, feeding gall at base of petiole (1 ♂, CNC). USA. CO: State Bridge nr. Bond, 7000 ', 24 - 25. vi. 1961, B. H. Poole (1 ♂, CNC), NY: Ithaca, 22. v. 1950, J. C. Martin, CNC 358463 (1 ♂, CNC), VA: Fairfax Co., Great Falls Park, quarry, 38 ° 59.1 ' N, 77 ° 14.8 ' W, Malaise trap, 24. iv- 2. v. 2007, D. R. Smith (1 ♂, USNM), Turkey Run Park, nr. mouth of Turkey Run, 38 ° 57.9 ' N, 7 ° 09.4 ' W, Malaise trap, D. R. Smith, 26. iv- 2. v. 2007 (1 ♂, USNM), 5. v- 6. vi. 2006 (1 ♂, USNM), Blacksburg, 5. v. 1947, W. B. McIntosh (1 ♂, VPIC).	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
62E929AF977149D3451EBE4AA1C1554C.taxon	description	Figs 73, 74, 405 - 410	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
62E929AF977149D3451EBE4AA1C1554C.taxon	description	Description (Figs 73, 74). Wing length 2.5 mm (♂). Female unknown. Length of ultimate section of vein M 4 divided by penultimate section: 0.7. Eye height divided by gena height: 5.6 - 5.9. Facial carina virtually absent and without medial bulb. Ocellar triangle short, reaching between ori and ors, slightly subshiny with corners matt. Fronto-orbital plate subshiny, narrow with indistinct margins expanding to encompass base of setae. Gena receding, highest near or behind middle. Clypeus relatively stout with sides parallel. Chaetotaxy: Male vibrissal fasciculus absent. Two ori; two ors. Mid tibia without posteromedial setae. Colouration: Body, including halter dark brown with gena slightly paler. Wing veins brown. Calypter margin and hairs dark brown. Genitalia: (Figs 405 - 410) Surstylus fused to, and longer than epandrium, with several irregular rows of shorter, stout setae along inner surface. Single sclerite of basiphallus narrow, short, fused to dorsomedial margin, curved dextrally. Mesophallus stout, nearly as wide as distiphallus with apex narrower; attached to distiphallus within its slightly recessed base. Distiphallus cup-like, subrectangular in outline (ventral view), with inner surface minutely textured transversely medially with ventral longitudinal sclerotisations extending past apex and enclosing medial tubule; base with shallow lobate dorsolateral extensions. Blade of ejaculatory apodeme elongate oval with dark central rib and marginal striations.	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
62E929AF977149D3451EBE4AA1C1554C.taxon	distribution	Distribution. Canada: ON *, QC *. USA: VA.	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
62E929AF977149D3451EBE4AA1C1554C.taxon	materials_examined	Additional material examined. Canada. ON: Wellington Co., Smith Property Trail nr. Arkell, 43 ° 33 ' N, 80 ° 11 ' W, 23. vi. 2015, O. Lonsdale, CNC 441149 (1 ♂, CNC), QC: Mt Rigaud, 45 ° 27 ' 54 " N, 74 ° 19 ' 24 " W, 8. vi. 2018, B. J. Sinclair, CNC 1706881 (1 ♂, CNC).	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
4FCFC497FFDC11DAE8C08FB912B481F4.taxon	description	Figs 411, 412	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
4FCFC497FFDC11DAE8C08FB912B481F4.taxon	description	Description. Wing length 2.2 mm (♂), 2.5 mm (♀). Length of ultimate section of vein M 4 divided by penultimate section: 1.0. Eye height divided by gena height: 8.2. Facial carina distinct with large medial bulb (strongly furrowed medially, shiny on dorsal 1 / 2), not narrowed above bulb. Eye angled diagonally. Gena strongly produced anteriorly, forming an ~ 60 ° angle (slightly larger angle in specimens from Turkey Run). Clypeus strongly produced and narrowed anteriorly. Crossveins separated by less than length of dm-m. Chaetotaxy: Male vibrissal fasciculus thick and upcurved, ~ 2 / 3 length of gena. Two ori; two ors. Mid tibia with one posteromedial seta. Colouration: Body, including halter dark brown. Wing veins brown. Calypter margin and hairs dark brown. Abdomen with coppery / golden shine. Genitalia: (Figs 411, 412) Metepiphallus pale and narrow with one pair of ventrobasal spines. Epiphallic lobes evenly dark. Halves of basiphallus fused at base with remainder of left sclerite highly reduced and ill-defined; right sclerite narrow and elongate, exceeding base of distiphallus. Mesophallus base not exceeding that of distiphallus. Distiphallus divided into a large, rounded subtriangular basal lobe, and a slightly narrower distal section that is nearly parallel-sided and compressed dorsoventrally, with a more densely spinulose basal chamber, several sclerotised ventromedial ridges and an internal tubule. Ejaculatory apodeme large, broad, relatively evenly pigmented and without medial rib.	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
4FCFC497FFDC11DAE8C08FB912B481F4.taxon	distribution	Distribution. USA: VA.	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
4FCFC497FFDC11DAE8C08FB912B481F4.taxon	materials_examined	Additional material examined. USA. VA: Fairfax Co., Turkey Run Park, nr. mouth of Turkey Run, 38 ° 57.9 ' N, 7 ° 09.4 ' W, Malaise trap, 23. viii- 18. ix. 2007, D. R. Smith (1 ♂ 3 ♀, USNM)	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
20EC9BF41DF50DBCD05B833F27FFE35E.taxon	description	Figs 675 - 677	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
20EC9BF41DF50DBCD05B833F27FFE35E.taxon	description	Description (Figs 675 - 677). Wing length 3.0 - 4.4 mm (♂), 3.1 - 4.8 mm (♀). Length of ultimate section of vein M 4 divided by penultimate section: 1.2 - 1.3. Eye height divided by gena height: 2.1 - 2.7. As described for P. setosa except as follows: fronto-orbitals usually slender, four to six ori, one ors (difference in orientation pronounced); uncommonly with three ori on one or both sides, but if so, wing length always smaller and orange tint reduced to absent on frons and gena; orbital setulae erect; ocellar and postocellar setae longer than fronto-orbitals; acrostichal seta as long or longer than anterior dorsocentral; mid tibia with only two posteromedial setae; sides of buccal cavity converging anteriorly; length of epistoma usually equal to width of space between arms of clypeus; antenna always mostly orange with distal region of first flagellomere brown; cheek and parafacial thicker, more pronounced; frons grey, usually with only anteromedial region narrowly to more broadly orangish; epandrium brown to light brown with orange tint; base of distiphallus slightly wider than and distinctly darker than tubules (seen laterally). Paratype dissected by Spencer with long, cruciate, posterolateral " interfrontal " setae. Variation: Some ON specimens with palpus dirty orange to orange, similar to P. betulivora, but orange colour dull, and pale region on frons restricted to anterior 1 / 3 or less. Female from WA with very long fronto-orbitals (6 ori) and large epistoma; with small fifth dorsocentral; pruinosity brownish, not grey; parafacial and fronto-orbital plate strongly swollen; eye height divided by gena 1.4.	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
20EC9BF41DF50DBCD05B833F27FFE35E.taxon	distribution	Distribution. Canada: AB *, BC, MB, NB *, NS *, ON, QC, SK. USA: CA *, KS *, MA, MI, NC, TN, VA, WA, WV.	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
20EC9BF41DF50DBCD05B833F27FFE35E.taxon	materials_examined	Additional material examined. Canada. AB: Waterton, 8. vi. 1962, K. C. Hermann, CNC 391688 (1 ♀, CNC), BC: Fife, 5 mi E, 8. vi. 1959, R. E. Leech, CNC 391646 (1 ♀, CNC), Lethbridge, vi. 1967, N. L. H. Krauss (1 ♀, USNM), MB: Ninette, bur oak community, 7. v. 1958, J. F. McAlpine, CNC 391614, CNC 391632, CNC 391633, CNC 391615 (2 ♂ 2 ♀, CNC), at margin of beaver pond, 9. v. 1958, J. F. McAlpine, CNC 391631, CNC 391609, CNC 391611, CNC 391616 (3 ♂, 1 ♀, CNC), NB: Kouchibouguac N. P., 20. v. 1977, W. P. Hanley, Code - 5098 B, CNC 391682 (1 ♂, CNC), 22. v. 1977, Hanley and Cooper, Code - 5111 O, CNC 391651 (1 ♀, CNC), 23. v. 1977, B. Cooper, Code - 5113 Q, CNC 391648 (1 ♀, CNC), W. P. Hanley, Code - 5112 P, CNC 391649 (1 ♀, CNC), 25. v. 1977, B. Cooper, Code - 5133 K, CNC 391650 (1 ♀, CNC), NS: CBHNt. Pk., Mackenzie Mtn., 400 m, birch and fir, 27. v. 1984, B. E. Cooper, PG 639848, CNC 391680 (1 ♂, CNC), 28. v. 1984, CNC 391687 (1 ♀, CNC), 29. v. 1984, CNC 391681 (1 ♂, CNC), ON: Griffith, 7 mi E, 1. vi. 1985, B. E. Cooper, CNC 391675 (1 ♂, CNC), 1. viii. 1982, CNC 391686 (1 ♀, CNC), Griffith, 15. v. 1982, B. E. Cooper, CNC 391647 (1 ♀, CNC), Lanark Co., N. Burgess Twp., 30. iv. 1972, D. M. Wood, CNC 391685 (2 ♂ / ♀, CNC), Mer Bleue Bog, Ottawa, 14. v. 1965, CNC 391676 (1 ♂, CNC), Metcalfe, 12. v. 1982, B. E. Cooper, CNC 391619 (1 ♂, CNC), 12. v. 1983, CNC 391663 - 391665, CNC 391669, CNC 391670, CNC 391674 (5 ♂ 1 ♀, CNC), 14. v. 1983, CNC 391661, CNC 391620, CNC 391621, CNC 391626, CNC 391628, CNC 391629 (6 ♂, CNC), 14. v. 1994, CNC 391652, CNC 391653, CNC 391655, CNC 391656, CNC 391671 (5 ♂, CNC), 17. v. 1994, CNC 391673 (1 ♂, CNC), 18. v. 1983, CNC 391624 (1 ♂, CNC), 25. v. 1983, CNC 391662 (1 ♂, CNC), 3. v. 1983, CNC 391666, CNC 391668 (2 ♂, CNC), 3. v. 1994, CNC 391659, CNC 391660 (2 ♂, CNC), 30. iv. 1983, CNC 391622, CNC 391623, CNC 391625, CNC 391627 (4 ♂, CNC), 4. v. 1994, CNC 391658 (1 ♂, CNC), 6. v. 1983, CNC 391667 (1 ♂, CNC), 7. v. 1994, CNC 391654, CNC 391657 (2 ♂, CNC), 9. v. 1983, CNC 391672 (1 ♂, CNC), Ottawa, 45 ° 21 ' N, 75 ° 45 ' W, city garden, 1 - 15. iv. 2010, H. Goulet, Malaise trap, CNC 391679 (1 ♂, CNC), Ottawa, 12. v. 1965, B. V. Peterson, CNC 391677 (1 ♂, CNC), Ottawa, damp second growth Acer - Betula wood, 29. v. 1997, J. R. Vockeroth, CNC 391678 (1 ♂, CNC), Rockport, 9. v. 1961, C. H. Mann, CNC 391612 (1 ♂, CNC), QC: Beechgrove, 15. v. 1961, J. F. McAlpine, CNC 391634, CNC 391635 (2 ♀, CNC), 45 ° 39 ' N, 76 ° 8 ' W, 15. v. 1961, J. R. Vockeroth, CNC 391683, CNC 391610, CNC 391636 - CNC 391645 (2 ♂, 10 ♀, CNC), Farnham, 5. vi. 1963, J. R. Vockeroth, CNC 391608 (1 ♂, CNC), Gatineau Pk., Harrington Lk., 30. v. 1954, J. E. H. Martin, CNC 391607 (1 ♂, CNC), SK: Sask. Landing, 50 ° 39 ' N, 107 ° 56 ' W, 25. v. 1955, J. R. Vockeroth, CNC 391618 (1 ♂, CNC), Saskatoon, 23. v. 1940, A. R. Brooks, CNC 391630 (1 ♀, CNC), 29. iv. 1949, CNC 391613 (1 ♂, CNC), 6. v. 1949, CNC 391617 (2 ♂ / ♀, CNC). USA. CA: Lake Tahoe, 20. vi. 1963, A. L. Melander (1 ♂, USNM), KS: Lawrence, Nat. Hist. Res., 28. iv. 1956, J. G. Chillcott, CNC 391684, CNC 391815, CNC 391816 (3 ♂, CNC), WA: Deer Park, 5. v. 1912, A. L. Melander (1 ♀, USNM).	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
D099AF1861645BA5476D13C173DA0B9E.taxon	description	Fig. 678	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
D099AF1861645BA5476D13C173DA0B9E.taxon	description	Description. Wing length 2.8 - 4.2 mm (♂), 3.8 - 4.5 mm (♀). Length of ultimate section of vein M 4 divided by penultimate section: 1.0 - 1.4. Costa extending to vein M. Eye height divided by gena height: 2.2 - 3.1. Frons soft. Ocellar triangle indistinct. Parafacial wide, most pronounced dorsally, continuing as cheek on anterior 1 / 2 of gena. No space between antennal bases. Clypeus narrow, sides of buccal cavity slightly converging anteriorly and epistoma large and triangular (length not exceeding width). Space between cross-veins as long as, or slightly shorter than dm-m. Lunule sometimes sunken and obscured. Chaetotaxy: Four or six ori; one ors. Postocellar and ocellar setae as developed as, or longer than fronto-orbitals. Orbital setulae erect to slightly reclinate, mostly in one irregular row but with some also between bases of fronto-orbitals. Vibrissa not much larger than genal setae, which are long and well-developed. Four strong dorsocentrals (one presutural). Small to weak seta medial to presutural supra-alar. One pair of prescutellar acrostichal setae as long as anterior dorsocentral. One or two posteromedial setae on mid tibia. Colouration: Body dark brown with grey pruinosity that is especially dark on thorax, except as follows: antenna (sometimes excluding infuscation around base of arista), parafacial (sometimes tinged with brown / grey in part), face (brownish below antennae or only centrally) and gena (lower margin brown) orange to yellow, sometimes tinged with brown / grey; frons bright orange to yellow, at least on anterior 1 / 3 - 2 / 3 of frons including part of fronto-orbital plate, but sometimes orange region more extensive, at most with dark brownish grey region restricted to ocellar tubercle, paler region behind tubercle, and posterolateral corner of frons including base of vertical setae and base of posterior fronto-orbital; palpus orange; frons usually slightly darker around base of fronto-orbitals; scutellum, notopleuron, postpronotum and legs (more so on tarsi) with orange tint; base of tibiae and apices of femora sometimes faintly to more strongly orange; halter yellow; epandrium centrally or more widely reddish. Calypter margin brown to dark brown, sometimes slightly orange, with hairs dark brown. Genitalia: (Fig. 678) As described for P. setosa, except as follows: right distolateral process of basiphallus slightly broader, but more weakly sclerotised along its length; mesophallus slightly stouter (especially apically) and more curved; base of distiphallus more bulbous and projecting ventrally; base of ejaculatory apodeme wider.	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
D099AF1861645BA5476D13C173DA0B9E.taxon	distribution	Distribution. Canada: ON, QC *. USA: DC, IL, KS, MA *, NY, PA *, WA *. Czech Republic, Hungary (Papp and Cerny 2016).	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
D099AF1861645BA5476D13C173DA0B9E.taxon	materials_examined	Additional material examined. Canada. ON: Mainfleet Bog, 8 km S Welland, 14 - 20. vi. 1988, 021, pt. 2 - 1962 zone, A. Stirling (1 ♂, DEBU), Metcalfe, 4. vii. 1985, B. E. Cooper, CNC 391695 (1 ♂, CNC), Nr. Picton, 7. vii. 1970, J. F. McAlpine, CNC 391692 (1 ♀, CNC), Ottawa, between Carling and Driveway, 12. vi. 1962, L. K. Smith, ovipositing in sucker stem of ash in CNR ditch, CNC 391691 (1 ♀, CNC), St. Lawrence Is. Nat. Park, Grenadier I. Centre, 25. vi. 1975, E. Signer, Malaise trap, Code - 231 x- 107, CNC 391690 (1 ♀, CNC), QC: Duncan Lake, nr. Rupert, 21. v. 1971, J. F. McAlpine, CNC 391696, CNC 391693 (2 ♂, CNC). USA. DC: Chain Bridge, 10719, Hopk. U. S., Betula nigra, C. T. Greene, reared 12. v. 1913 (1 ♂ [with puparium], USNM), reared 22. iv. 1913 (1 ♂ [with puparium], USNM), reared 18. iv. 1913 (1 ♂ [with puparium], USNM), IL: St. Joseph, 3. v. 1914, Salt Fork, J. M. Aldrich (1 ♀, USNM), KS: Lawrence, Nat. Hist. Res., 28. iv. 1956, J. G. Chillcott, CNC 391694 (1 ♂, CNC), MA: Boston, May, A. L. Melander (1 ♂, USNM), NY: Oneonta, 30. v. 1935, H. K. Townes (1 ♀, USNM), PA: Hawley, 30. v. 1937, A. L. Melander (1 ♂, USNM), WA: Oroville, A. L. Melander (1 ♀, USNM).	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
A3BA3BDE284F3DBA9B94E4B5EECEDBB3.taxon	description	Figs 679 - 682	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
A3BA3BDE284F3DBA9B94E4B5EECEDBB3.taxon	description	Description. Wing length 2.9 - 3.5 mm (♂ ♀). Length of ultimate section of vein M 4 divided by penultimate section: 1.1 - 1.2. Costa extending to vein M. Eye height divided by gena height: 3.1 - 7.0. Frons well-sclerotised and evenly rounded with fronto-orbital plate ill-defined and projecting. Parafacial projecting, venter less pronounced, continuing as narrow cheek on anterior 1 / 2 of gena; narrow, slightly widened and projecting dorsally. Lunule semi-circular, shallow. Space between antennae ~ 1 / 3 width of scape. Clypeus narrow and broadly rounded, buccal cavity subquadrate, and length of epistoma 0.2 x width or less. Space between cross-veins longer than length of dm-m, sometimes nearly 1.5 x length of dm-m. Chaetotaxy: Two ori (sometimes three ori on one side); two ors. Postocellar and ocellar setae well-developed. Orbital setulae reclinate, in one irregular row. One presutural and three postsutural dorsocentrals; slightly decreasing in length anteriorly or with anterior two much shorter, closer in length to surrounding setulae. Small to weak seta medial to long presutural supra-alar. Acrostichal seta slightly thinner than, and nearly as long as fronto-orbitals. One posteromedial seta on mid tibia. Colouration: Body predominantly dark brown with slight orange-reddish tint that is stronger on antenna, legs and venter of pleuron; body with light greyish brown pruinosity that is greyer and denser dorsally on head and thorax (shinier on ocellar tubercle and in posterolateral corner of frons); dorsum of thorax slightly, and frons sometimes much darker; lunule whitish to beige; parafacial sometimes whitish to beige medially (type specimens Phytobia septentrionalis); legs brown with base of tibiae slightly yellowish; halter yellow; epandrium sometimes reddish. Calypter margin and hairs dark brown. Genitalia: (Figs 679 - 682) Hypandrial lobe medially setose and plate-like, nearly separate. Postgonite deeply cleft and upcurved anteriorly. Basiphallus long and narrow, bifid on distal 1 / 3. Paraphallus sometimes evident as one pair of weak bars. Hypophallus sometimes visible as weak ventral plate. Mesophallus cylindrical with base rounded, slightly longer than wide, entirely fused to distiphallus. Distiphallus tubular and weakly sclerotised, constricted subbasally, widening distally with apex more abruptly expanded; sometimes appearing apically bifid. Variation: NB female with lunule very shallow, nearly straight along dorsal margin, parafacial thicker and projecting, and dorsocentrals becoming only slightly shorter anteriorly.	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
A3BA3BDE284F3DBA9B94E4B5EECEDBB3.taxon	distribution	Distribution. Canada: NB *, ON, QC. USA: DC, IL, KS, MD, NY.	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
A3BA3BDE284F3DBA9B94E4B5EECEDBB3.taxon	materials_examined	Additional material examined. Canada. NB: Kouchibouguac N. P., 24. v. 1977, B. Cooper, Code - 5132 J, CNC 391698 (1 ♀, CNC), ON: St. Lawrence Is. Nat. Park, McDonald Is., 7. viii. 1979, W. Reed, Code 4353. M (1 ♂, CNC), St. Lawrence Is. Nat. Park, McDonald Is., 21. vii. 1976, W. Reid, Code 4166 - F, CNC 391699 (1 ♀, CNC), 7. viii. 1976, W. Reid, Code 4353 - M, CNC 391697 (1 ♂, CNC), Stratford, 15. viii. 1959, D. H. Pengelley (7 ♀, DEBU), Midland, 12. v. 1959, J. G. Chillcott, CNC 391702 (1 ♂, CNC), 5. v. 1959, CNC 391700, CNC 391701 (2 ♂, CNC), Ottawa, damp second growth Acer - Betula wood, 8. vii. 2003, J. R. Vockeroth, CNC 391705 (1 ♀, CNC), QC: Duncan Lake, nr. Rupert, 21. v. 1971, J. F. McAlpine, CNC 391703 (1 ♂, CNC), 29. v. 1971, CNC 391704 (1 ♀, CNC). USA. MD: Colesville, 24. vii. 1974, W. W. Wirth (1 ♂, USNM).	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
7B288C2B42068A482A91E44081E7D380.taxon	description	Figs 3, 124, 125, 683 - 688, 689	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
7B288C2B42068A482A91E44081E7D380.taxon	description	Description (Figs 3, 124, 125, 689). Wing length 3.4 - 4.6 mm (♂), 3.7 - 4.4 mm (♀). Length of ultimate section of vein M 4 divided by penultimate section: 1.2 - 1.4. Costa extending to vein M. Eye height divided by gena height: 3.0 - 4.1. Frons soft if anterior margin orange. Space between antennae ~ 1 / 3 - 2 / 3 width of scape. Clypeus narrow, sides of buccal cavity parallel and length of epistoma 1 / 2 width. Space between cross-veins as long as dm-m. Chaetotaxy: Two or three ori; two ors (anterior ors sometimes slightly inclinate). Orbital setulae reclinate, in a single irregular row. Postocellar and ocellar setae well-developed, subequal to fronto-orbitals. Small to weak seta medial to presutural supra-alar. Prescutellar acrostichal seta nearly as long as anterior dorsocentral. Two to three posteromedial setae on mid tibia. Colouration: Body predominantly dark brown. Lunule orange. Frons slate-grey with posterolateral margin and anterior 1 / 3 or less sometimes orange; if frons between fronto-orbital plates partially orange, sides of face and gena orange to rusty with all or dorsal margin of gena grey and ventral margin brown. Antenna dark orange, distal margin of first flagellomere brownish (more so on outer face, particularly in individuals with entirely grey frons); uncommonly dark brown with base (more so on inner surface) conspicuously orange. Mid trochanter and coxa sometimes orange laterally. Halter yellow. Calypter margin and hairs dark brown. Abdomen with epandrium sometimes variably to entirely orange or reddish, brightest near base. Genitalia: (Figs 683 - 688) Epandrium slightly produced ventrally. Surstylus separate from epandrium, small, heavily setose apically, directed inwards. Cercus narrow, setose. Hypandrium well-developed, with narrower, stout, rounded apex; inner lobe with several setae. Phallophorus small. Basiphallus narrowly sclerotised along dorsum, split apically with left process hook-like and right process abruptly paler on distal 1 / 2; halves flanking base of mesophallus. Hypophallus narrow, curved, longer than mesophallus. Mesophallus cylindrical with base rounded, slightly bent at midpoint, width ~ 1 / 3 length; dorsally fused to base of distiphallus. Distiphallus divided into one pair of long, slender tubules along most of length; evenly dark along length. Ejaculatory apodeme stout with rounded blade, short, apically widening stem and stout base; sperm pump with transverse sclerotised bar.	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
7B288C2B42068A482A91E44081E7D380.taxon	distribution	Distribution. Canada: NB *, NS *, ON, QC, SK *. USA: AZ *, CT *, DC, IA, IN, MA, MD, MI, NY, PA *, VA, WI, WV. Mexico (Durango).	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
7B288C2B42068A482A91E44081E7D380.taxon	materials_examined	Additional material examined. Canada. NB: Kouchibouguac N. P., 10. vii. 1977, J. F. McAlpine, Code 6025 S, CNC 391749 (1 ex [abdomen missing], CNC), 11. vii. 1977, Code - 6026 T, CNC 391753 (1 ♀, CNC), 12. vii. 1977, Code - 6041 I, CNC 391754 (1 ♀, CNC), 13. vii. 1977, Code - 6042 J, CNC 391755 (1 ♀, CNC), Code - 6039 G, CNC 391756 (1 ♀, CNC), 8. vii. 1977, Code - 6021 O, CNC 391752 (1 ♀, CNC), 15. vi. 1978, S. J. Miller, Code - 7066 T, CNC 391811 (1 ♀, CNC), 18. v. 1977, B. Cooper, Code - 5065 U, CNC 391744 (1 ♂, CNC), 20. v. 1977, Code - 5097 A, CNC 391750, CNC 391812 (2 ♀, CNC), 19. v. 1977, W. P. Hanley, Code - 5087 Q, CNC 391748 (1 ex [abdomen missing], CNC), Code - 5098 B, CNC 391745, CNC 391751 (1 ♂ 1 ♀, CNC), 6. vii. 1977, NS: CBHNt. Pk., Mackenzie Mtn., 400 m, birch and fir, 1. vi. 1984, B. E. Cooper, PG 639848, CNC 391765 (1 ♂, CNC), 27. v. 1984, CNC 391767 (1 ♂, CNC), 28. v. 1984, CNC 391769, CNC 391814 (1 ♂, 1 ♀, CNC), 29. v. 1984, CNC 391768 (1 ♂, CNC), 30. v. 1984, CNC 391766 (1 ♂, CNC), 31. v. 1984, CNC 391770 (1 ♂, CNC), 7. vi. 1984, CNC 391813 (1 ♀, CNC), ON: Midland, 18. v. 1976, J. T. Huber (1 ♂, DEBU), Guelph, 10. v. 1982, A. John (1 ♂, DEBU), Essex Co., Windsor, ~ 1.5 km S Ojibway Prairie, 5 - 12. vi. 2001, private prairie, Malaise, S. Paiero (1 ♂, USNM), Bell's Cor., 1. v. 1951, J. F. McAlpine, CNC 391732 (1 ♂, CNC), Greenbush, at lights, 6. v. 1999, R. Hainault, CNC 391807 (1 ♀, CNC), Lanark Co., N. Burgess Twp., 15. v. 1971, D. M. Wood, CNC 391808 - 391810 (3 ♀, CNC), Marmora, 25. iv. 1952, J. F. McAlpine, CNC 391734 (1 ♂, CNC), 28. iv. 1952, CNC 391757 (1 ♀, CNC), 29. iv. 1952, CNC 391733 (1 ♂, CNC), Metcalfe, 12. v. 1983, B. E. Cooper, CNC 391785 (1 ♂, CNC), 14. v. 1994, CNC 391788, CNC 391789 (2 ♂, CNC), 17. v. 1994, CNC 391786, CNC 391787 (2 ♂, CNC), 7. v. 1994, CNC 391791 (1 ♂, CNC), 8. v. 1994, CNC 391790 (1 ♂, CNC), Midland, 5. v. 1959, J. G. Chillcott, CNC 391780 (1 ♂, CNC), Normandale, 42 ° 42 ' N, 80 ° 19 ' W, 22. v. 1956, J. R. Vockeroth, CNC 391730, CNC 391731 (2 ♂, CNC), Ottawa, 9. v. 1923, C. H. Curran, CNC 391740 (1 ♂, CNC), Rockport, 9. v. 1961, J. R. Vockeroth, CNC 391781 (1 ♂, CNC), QC: Abbotsford, 22. v. 1936, G. E. Shewell, CNC 391758 (1 ♀, CNC), Beechgrove, 45 ° 39 ' N, 76 ° 8 ' W, 10. v. 1962, J. R. Vockeroth, CNC 391727 - 391729 (3 ♂, CNC), 15. v. 1961, CNC 391723 (1 ♂, CNC), 16. v. 1962, CNC 391724 - 391726, CNC 391760 (3 ♂, 1 ♀, CNC), Chelsea, 24. iv. 1933, G. S. Walley, CNC 391741 (2 ♂ / ♀, CNC), Duncan Lake, nr. Rupert, 21. v. 1971, J. F. McAlpine, CNC 391793, CNC 391794, CNC 391762 - 391764, CNC 391802, CNC 391805, CNC 391806 (3 ♂ 5 ♀, CNC), 29. v. 1971, CNC 391792, CNC 391795 - 391801, CNC 391803 (9 ♀, CNC), 5. vi. 1971, CNC 391804 (1 ♀, CNC), Gatineau Pk., Harrington Lk., 31. v. 1954, E. E. Sterns, CNC 391759 (1 ♀, CNC), Gatineau Pk., Lac Philippe, 23. v. 2011, O. Lonsdale, CNC 391779 (1 ♂, CNC), Hull, 22. v. 1923, R. Ozburn, CNC 391720 (1 ♂, CNC), 26. iv. 1929, C. H. Curran, CNC 391707 (1 ♂, CNC), Kingsmere, 12. v. 1958, J. G. Chillcott, CNC 391721, CNC 391722 (2 ♂, CNC), Lac Mondor, Ste. Flore, 21. v. 1951, E. G. Munroe, CNC 391746 (1 ♂, CNC), 5. v. 1951, CNC 391713, CNC 391714 (2 ♂, CNC), 5. vi. 1951, CNC 391717 (1 ♂, CNC), 6. v. 1951, CNC 391708 - 391712, CNC 391715, CNC 391716, CNC 391718 (8 ♂, CNC), Lac Philippe, 75 ° 36 ' N, 76 ° 0 ' W, 25. iv. 1987, J. R. Vockeroth, CNC 391773, CNC 391777 (2 ♂, CNC), Mt. St. Hilaire, North Ck., 3 - 6. v. 1982, B. M. Nelson, CNC 391771, CNC 391772, CNC 391774 - 391776 (5 ♂, CNC), Old Chelsea, 17. v. 1947, G. E. Shewell, CNC 391735 - 391739 (5 ♂, CNC), 17. v. 1990, J. R. Vockeroth, CNC 391778 (1 ♂, CNC), Tetreau val, 20. v. 1923, C. H. Curran, CNC 391719 (1 ♂, CNC), SK: Sask. Landing, 50 ° 39 ' N, 107 ° 56 ' W, 25. v. 1955, J. R. Vockeroth, CNC 391761 (1 ♂, CNC). USA. AZ: Portal SW Res. Sta., 5 - 9. vi. 1972, Malaise trap, W. W. Wirth (1 ♂, USNM), CT: Redding, 19. v. 1934, A. L. Melander (1 ♂, USNM), IN: Lafayette, 1. iv. 1918, J. M. Aldrich (1 ♂, USNM), MA: Petersham, 2. vi. 1914, A. L. Melander (1 ♂, USNM), Woods Hole, 20 - 30. vi. 1923, A. H. Sturtevant (1 ♀, USNM), New Bedford, 25. iv, A. L. Melander (1 ♀, USNM), Boston, A. L. Melander, May (1 ♂, USNM), June (1 ♀, USNM), MD: near Plummers Isl., 7. iv. 1915, R. C. Shannon (1 ♂, USNM), Montgomery Co., Clarksburg, 20 - 22. v. 1988, W. E. Steiner and J. M. Swearingen (1 ♂, USNM), Bethseda, 5. v. 1969, G. Steyskal (2 ♂, USNM), Colesville, 21. iv. 1977, W. W. Wirth (1 ♂, USNM), Bethseda, 27. iv. 1969, W. W. Wirth (1 ♂, USNM), Prince Georges Co., 7. v. 1977, J. F. Reinert (1 ♂, USNM), MI: Otsego Co., 26. iv. 1941, R. R. Dreisbach (1 ♂, USNM), NY: Savage Rt. Pond, 3 mi W Geneva, Knutson, pupa coll. 21. iii. 1966, emerged 2. iv (1 ♂ [with puparium], USNM), W Nyack, 31. v. 1936, A. L. Melander (2 ♂, USNM), Long Island, 17. ix. 1988, R. Latham (1 ♂, USNM), Long Island, Orient., R. Latham, 6. viii. 1952 (1 ♀, USNM), 4. ix. 1962 (1 ♀, USNM), PA: Sullivan Co., Wyoming State For., 8 km NW Laporte, 6. v. 1987, J. M. Cumming, CNC 391782 - 391784 (3 ♂, CNC), VA: Fairfax Co., Great Falls Park, quarry, 38 ° 59.1 ' N, 77 ° 14.8 ' W, Malaise trap, D. R. Smith, 3 - 10. v. 2007 (1 ♂ 1 ♀, USNM), 10 - 17. v. 2007 (1 ♀, USNM), 24. iv- 2. v. 2007 (1 ♀, USNM), WI: Sawyer Co., 7. v. 1964, J. B. Hanson, ex. sugar maple root (1 ♂ 1 ♀, USNM). Location unknown. " Mel. It. / v. 18.10 ", CNC 391742 (2 ♂ / ♀, CNC), 3 - 51 Y / BRI- 97 / 75 - 714, CNC 391747 (1 ♂, CNC).	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
D7B63FC38D9D07B2EF83C6EDF73D4179.taxon	description	Figs 690 - 692	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
D7B63FC38D9D07B2EF83C6EDF73D4179.taxon	description	Description (Fig. 690). Wing length 3.2 - 3.9 mm (♂), 3.6 - 4.0 mm (♀). Length of ultimate section of vein M 4 divided by penultimate section: 1.1 - 1.5. Costa extending to vein M. Space between cross-veins ~ 1 / 2 length of dm-m, but sometimes nearly 2 / 3 length. Eye height divided by gena height: 3.2 - 3.6. Frons well-sclerotised; ocellar triangle indistinct. Space between antennae ~ 2 / 3 - 3 / 3 width of scape. Clypeus stout and broad, width equal to length, length at midpoint longer than epistoma. Epistoma shallow and broad. Frons shiny around base of fronto-orbitals (pruinose in other species). Chaetotaxy: Three ori; two ors (inset). Postocellar seta as long as ors; ocellar seta slightly longer. Four dorsocentrals, one presutural, slightly decreasing in size anteriorly. One pair of strong prescutellar acrostichal setae, subequal to dorsocentrals. One usually indistinct posteromedial mid tibial seta. Colouration: Head dark brown with lunule orange to brown. Thorax brown to dark brown with orange-reddish tint (paler on postpronotum and notopleuron, particularly on anterior margin, or with pale spot on either side of postpronotum) and brownish grey pruinosity; halter yellow. Calypter margin and hairs dark. Legs and abdomen brown to dark brown. Genitalia: (Figs 691 - 692) Inner lobe of hypandrium broadly arched anteriorly with apex setulose. Postgonite narrow with apex broadly expanded dorsally and with one inner seta. Basiphallus relatively short with well-developed recurved subapical branch. Hypophallus with one pair of narrow, weakly pigmented and textured plate-like lobes with truncated, serrated apical margins. Paraphallus absent. Mesophallus narrow, ~ 1 / 2 length of distal section, broadly rounded basally, narrowed apically to point of fusion with bulbous base of distiphallus. Distiphallus split along most of length into two narrower tubules with flared apex; base surrounded by membranous fringe with paired leaf-like processes anteriorly. Ejaculatory apodeme short, blade reduced to stump; sperm pump with reduced ventral sclerotisation.	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
D7B63FC38D9D07B2EF83C6EDF73D4179.taxon	distribution	Distribution. Canada: NB *, QC. USA: IA, NC, NH *, NY, SC, TN *.	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
D7B63FC38D9D07B2EF83C6EDF73D4179.taxon	materials_examined	Additional material examined. Canada. NB: Kouchibouguac N. P., 10. vii. 1977, J. F. McAlpine, Code - 6025 S, CNC 391826 (1 ♂, CNC), 11. vii. 1977, Code - 6026 T, CNC 391822, CNC 391823 (2 ♂, CNC), 12. vii. 1977, Code - 6040 H, Code - 6041 I, CNC 391829, CNC 391830, CNC 391825 (3 ♂, CNC), 13. vii. 1977, Code - 6042 J, CNC 391832 - 391824, CNC 391827 (4 ♂, CNC), 6. vii. 1977, Code - 6039 G, CNC 391831 (1 ♂, CNC), 9. vii. 1977, Code - 6023 Q, Code - 6023 a, Code - 6024 R, CNC 391819 - 391821, CNC 391828 (3 ♂ 1 ♀, CNC), 12. vii. 1977, J. R. Vockeroth, CNC 391836 (1 ♀, CNC), 12. vii. 1978, S. J. Miller, Code - 7250 V, CNC 391835 (1 ♂, CNC), 22. vii. 1978, Code - 7325 S, CNC 391834 (1 ♂, CNC), QC: Mt. Albert, 28. vii. 1954, J. E. H. Martin, CNC 391817, CNC 391818 (2 ♀, CNC). USA. NC: Smokies, Andrews Bald, 9. vii. 1941, A. L. Melander (16 ♂ 3 ♀, USNM), Great Smokies N. P., Clingmans Dome, A. L. Melander, 18. vii. 1941 (5 ♂, USNM), 19. vii. 1941 (1 ♂, USNM), Great Smokies N. P., " Newfnd Ridge ", 11. vii. 1941, A. L. Melander (9 ♂ 2 ♀, USNM), Smokies, Forney Ridge, 26. vi. 1941, A. L. Melander (1 ♂, USNM), NH: Lost River, vii. 1931, A. L. Melander (1 ♂, USNM), Franconia Ntch, 8. vii. 1931, A. L. Melander (1 ♂, USNM), TN: Smokies, Arch Rock, 28. vi. 1941, A. L. Melander (1 ♂, USNM).	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
E9282E775F42F31C55FA86805E38E789.taxon	description	Figs 126, 127, 693 - 698	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
E9282E775F42F31C55FA86805E38E789.taxon	description	Description (Figs 126, 127, 693). Wing length 1.6 - 1.9 mm (♂), 1.9 - 2.2 mm (♀). Length of ultimate section of vein M 4 divided by penultimate section: 1.5 - 1.7. Eye height divided by gena height: 2.6 - 3.8. Eye minutely pilose. Vein r-m near basal 1 / 3 of cell dm. Frons soft medially and with broad groove surrounding well-sclerotised tubercle. Chaetotaxy: One ori; two ors. Orbital setulae proclinate. Postocellar and ocellar setae well-developed. Four dorsocentrals, one presutural, anterior two dorsocentrals smaller. Very few acrostichal setulae in two scattered rows anteriorly; intra-alar setulae similarly reduced. Colouration: Frons brownish, never light yellow, but sometimes fading to light yellow or yellow laterally; lateral margin with whitish pruinosity; ocellar tubercle dark brown; back of head brown; first flagellomere lightly to darkly infuscated on outer face on basal 2 / 3 - 3 / 4 or less with pigment fading anteroventrally, and dorsal margin often more darkly and more extensively infuscated, but sometimes mostly dark with venter yellow; remainder of head light yellow with clypeus dark brown, and face (sometimes lightly infuscated along midline) and parafacial paler. Notum dark, densely covered with grey pruinosity that may become more coppery posteriorly; notopleuron and postpronotum sometimes with pale mottling or faint yellow tint, but sometimes bright yellow with yellow stripe continuing along side of scutum to posterior margin. Metanotum brown with mediotergite darker and katatergite and anatergite sometimes yellowish to light yellow. Pleuron dark with lighter pruinosity, usually with dorsal margin of katepisternum (rarely including base of seta) and meron yellowish to yellow, and often at least with dorsum of anepisternum and anepimeron yellow; pigment variably faded, sometimes with most of anepisternum and anepimeron yellow, excluding limited ventral brown markings. Apical surface of halter light brown, but pigment sometimes faint to indistinct. Calypter margin and hairs brown. Legs varying from mostly brown to mostly yellow, but at least brown on base of coxae (most extensive on hind leg), femora with faint dorsal mottling (sometimes indistinct on mid and hind legs), and tibiae and tarsi brown; legs sometimes almost entirely brown to dark brown with distal 2 / 3 of fore femur yellow, and mid and hind femora yellow apically with additional extensive yellow (ish) mottling. Abdomen brown to dark brown with lateral margin of tergites often narrowly to widely yellow, but sometimes mostly yellow with only dorsomedial stripe and epandrium light brown to brown (ovipositor always dark brown). Genitalia: (Figs 694 - 698) Surstylus directed inwards, angled anteriorly, subtriangular with shallow posterobasal process, setulose. Subepandrial sclerite with one pair of anteriorly directed arms and with broader posteriorly directed process at midpoint; seta on narrow membrane between arm and process; arms meet above cerci as clear bilobate plate. Hypandrium narrow and elongate distally with wide inner membrane along length and one pair of basal setulae on each lobe. Postgonite lobate, apically bifid and with two setulae. Basiphallus long and narrow with one pair of basally joined sclerites. Mesophallus and paraphallus not evident. Hypophallus small, membranous. Distiphallus clear, extremely long and flagellate, with base stouter and slightly more sclerotised. Ejaculatory apodeme small with short, wide blade and narrow stalk; venter of sperm pump dark.	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
E9282E775F42F31C55FA86805E38E789.taxon	distribution	Distribution. Greenland. North America. Europe. Iran, South Korea (Cerny et al. 2020). Taiwan. Sri Lanka. Brazil. Chile.	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
D0ED27C7F0954409F3365722F70F537F.taxon	description	Figs 699 - 704	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
D0ED27C7F0954409F3365722F70F537F.taxon	description	Description. Wing length 2.1 - 2.5 mm (♂), 1.9 - 2.6 mm (♀). Length of ultimate section of vein M 4 divided by penultimate section: 1.2 - 1.5. Eye height divided by gena height: 3.9 - 5.0. Eye bare. First flagellomere slightly longer than high, rounded, long axis slightly angled ventrally. Vein r-m near midpoint of cell dm. Chaetotaxy: One ori; two ors. Orbital setulae erect, in a single row. Postocellar and ocellar setae well-developed. Four dorsocentrals, one presutural, decreasing in length anteriorly. Acrostichal setulae in two long rows, relatively long, posterior pair slightly to distinctly convergent. Colouration: Head light yellow with first flagellomere dark brownish black, back of head brown above foramen excluding margin, ocellar tubercle yellow to light brown medially with brown margins or extensions to ocelli; face, gena, parafacial and postgena whitish. Thorax with greyish pruinosity distinct on pigmented regions. Scutum yellow with dark medial stripe on anterior 2 / 3, one pair of presutural spots, and two pairs of postsutural stripes, with outer supra-alar pair small, narrow, and more posterior, and inner intra-alar pair sometimes connected to presutural spot (only fused to postsutural intra-alar stripe in one Ontario female). Scutellum yellow with lateral corner sometimes narrowly brownish grey. Mediotergite dark brown; katatergite and anatergite yellow with venter sometimes narrowly brown. Pleuron yellow, anatergite sometimes with minute, faint anteroventral spot, meron mostly brown, and katepisternum with brown spot not reaching base of seta. Halter entirely white. Calypter margin and hairs brown. Legs light yellow, sometimes with tarsi and tibiae faintly brownish. Abdomen yellow, sometimes with faint dorsomedial stripe and epandrium brownish. Genitalia: (Figs 699 - 704) Inner surface of epandrium with comb of long, fused tubercle-like setae beside one longer spine; ventral margin with minute tubercle-like setae, widely spaced in straight to irregular row. Surstylus small and rounded with one to three tubercle-like setae posteriorly. Subepandrial sclerite consisting of V-shaped sclerite with one pair of medial setae and flat, pale, ventral bilobed process. Hypandrium thin with one seta and lobe sclerotised only along outer margin. Postgonite bare and broadly rounded apically. Basiphallus with narrow plate on left side (broad apically) and lightly sclerotised anterodorsal margin. Paraphallus absent. Hypophallus broad and membranous with one pair of small, converging sclerites medially and lateral margin very lightly sclerotised. Mesophallus dark, cylindrical, as long as distiphallus. Distiphallus comprised of one pair of stout, elongate tubules that are parallel basally; basal 1 / 2 composed of dark bulbous sclerite and weaker medial region that is nearly band-like; distal 1 / 2 cylindrical, pigmented. Ejaculatory apodeme pale and fan-shaped with narrow stalk, broad base, and clear sperm pump.	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
D0ED27C7F0954409F3365722F70F537F.taxon	distribution	Distribution. Canada: BC *, MB *, NT *, ON, QC *, YT *. USA: CA, LA, MD, MI, PA, VA, WY *. Europe, Russia, Iran, Japan (Cerny et al. 2020).	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
D0ED27C7F0954409F3365722F70F537F.taxon	materials_examined	Additional material examined. Canada. BC: Kinbasket Lake, 17 - 18. vii. 2009, Cooper Beauchesne and Assoc. Ltd., Malaise trap, BC Hydro drawdown study (12 MTRT 15), CNC 479993 (1 ♀, CNC), MB: Shilo, 5 mi SW, tamarack, 2. viii. 1958, J. G. Chillcott, CNC 479997 (1 ♀, CNC), Western MB, Riding Mountain Nat. Park, Clear Spring spruce bog, 50 ° 41 ' N, 99 ° 48 ' W, 650 m, 10. vii. 2008, J. Crossey, N. Jeffery, J. Straka, CNC 391899, CNC 391900 (2 ♂, CNC), NT: Norman Wells, 25. vi. 1969, G. E. Shewell, CNC 479991 (1 ♂, CNC), Wood Buffalo National Park, Benchmark weather station, 59 ° 34 ' N, 112 ° 16 ' W, 219 m, aspen stand, 27. vii. 2012, N. Labine, CNC 391901 (1 ♀, CNC), ON: Ottawa, Dow's Swamp, 5. vii. 1947, CNC 391902 (1 ♂, CNC), Ottawa, 17. vi. 1946, G. E. Shewell, CNC 391903 (1 ♀, CNC), 18. vi. 1957, J. G. Chillcott, CNC 479999, CNC 480000 (2 ♀, CNC), damp second growth Acer - Betula wood, 5. vii. 2000, J. R. Vockeroth, CNC 479998 (1 ♀, CNC), QC: Cap Rouge, 4. vii. 1953, R. Lambert, CNC 479994 (1 ♀, CNC), Old Chelsea, 18. vii. 1961, J. R. Vockeroth, CNC 479995 (1 ♀, CNC), 30. vi. 1985, CNC 479996 (1 ♀, CNC), YT: Dawson, 14 mi E, 396 m, 31. vii. 1962, P. J. Skitsko, CNC 479992 (1 ♂, CNC). USA. LA: Alexandria, 11 mi SW, 26. iii. 1960, J. G. Chillcott, CNC 391904 (1 ♀, CNC), VA: Giles Co., Stony Creek, 609 m, 26. v. 1963, J. R. Vockeroth, CNC 391905 (1 ♀, CNC), Shenandoah, vii. 1939, A. L. Melander (1 ♂, USNM), WY: Sierra Madre Range, Battle L. Road, 2438 m, on side of stream, 18. vii. 1961, J. G. Chillcott, CNC 479990 (1 ♂, CNC).	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
74EA50825379F991AEF8DACDBC4A877E.taxon	description	Figs 129, 705 - 710	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
74EA50825379F991AEF8DACDBC4A877E.taxon	description	Description (Fig. 129). Wing length 2.1 - 2.4 mm (♂), 2.0 - 2.5 mm (♀). Length of ultimate section of vein M 4 divided by penultimate section: 1.3. Eye height divided by gena height: 3.7 - 4.3. Eye bare. Vein r-m at midpoint of cell dm or beyond. Chaetotaxy: Two to three ori; two ors. Orbital setulae reclinate and well-developed, in one row. Postocellar and ocellar setae well-developed, longer than ors. Four dorsocentrals, one presutural, decreasing in length anteriorly. Acrostichal setulae in four irregular rows. Colouration: Head light yellow with ocellar tubercle light brown to yellow and back of head brown above foramen excluding margins. Thorax mostly light yellow with light greyish pruinosity evident on pigmented sections; scutum with medial stripe on anterior 2 / 3 that is sometimes confluent with one pair of lateral presutural spots; postsuturally with one very narrow pair of floating supra-alar stripes posteriorly and one pair of wider intra-alar stripes that taper posteriorly and sometimes fuse to presutural spot; pattern sometimes enlarged with stripes extensively fused, encompassing all but lateral and posterior margins of scutum. Scutellum yellow, sometimes with lateral corner brownish. Metanotum yellow with mediotergite dark brown and anatergite and katatergite variably brown posteroventrally. Pleuron yellow with meron brown excluding dorsum, and katepisternum with large brown spot that does not reach base of seta. Halter entirely white. Calypter margin and hairs brown. Legs yellow with tibiae dark yellow to brownish. Abdomen light yellow with at least sides of epandrium brown; sometimes with faint paired brownish spots on pregenital tergites. Genitalia: (Figs 705 - 710) Epandrium with broad anterior emargination basal to fused surstylus; posteromedial margin with comb of long tubercle-like setae. Surstylus subquadrate, only slightly converging and with posteromedial margin with comb of long tubercle-like setae; outer surface bare, inner surface setose. Subepandrial sclerite bare and subrectangular with centre paler and corners produced; ventrally with one pair of dark narrow arms and shallow rounded medial process. Hypandrium bare, long, and thin with only margin of lobe sclerotised. Postgonite rounded and cleft apically. Basiphallus consisting of single dark elongate rod on left side, Mesophallus cylindrical, widest at base, which is 1 / 2 length. Distiphallus made up of one pair of stout, clear, elongate tubules that are laterally pigmented subbasally. Ejaculatory apodeme small and dark with base stout and blade highly reduced; sperm pump clear.	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
74EA50825379F991AEF8DACDBC4A877E.taxon	distribution	Distribution. Canada: AB *, NB *, NS *, ON, PE *, QC *, SK *. USA: DC, MA, MD, MI, NC *, NJ, NM *, NY, PA *, VA *, MN, WI. Europe, India, Kazakhstan, Russia, South Korea (Cerny et al. 2020).	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
74EA50825379F991AEF8DACDBC4A877E.taxon	materials_examined	Material examined. Canada. AB: Elk Island NP, Wood Bison Trail, 53 ° 34 ' N, 112 ° 50 ' W, 722 m, aspen forest, 2. vii. 2012, BIOBus, CNC 391917 (1 ♂, CNC), NB: Shediac, 8. vii. 1967, N. L. H. Krauss (♂, USNM), NS: CBHNt. Pk., Beulach Ban Falls, along fast rocky stream, 11. vii. 1983, J. R. Vockeroth, sweeping, PG 812870, CNC 479986 (1 ♂, CNC), ON: Cyrville Road, 2 mi E Ottawa, 31. v. 1965, B. V. Peterson, CNC 479985 (1 ♀, CNC), Elizabethtown, 4452 Rowsome Rd., 44 ° 37 ' N, 76 ° 16 ' W, 120 m, 2. vi. 2010, James Sones, CNC 391918 (1 ♂, CNC), 4. vi. 2010, CNC 391919 (1 ♀, CNC), Grand Bend, 14. vii. 1939, G. E. Shewell, CNC 391929 (1 ♀, CNC), Ottawa, Black Rapids, 28. vi. 1959, J. R. Vockeroth, CNC 479983 (1 ♂, CNC), Ottawa, Dow's Swamp, 5. vii. 1947, W. R. M. Mason, CNC 391930, CNC 391926 (1 ♂ 1 ♀, CNC), Ottawa, 20. vii. 1963, J. R. Vockeroth, CNC 391908 (1 ♀, CNC), 28. vi. 1953, J. R. Vockeroth, CNC 391909 - 391914 (4 ♂ 2 ♀, CNC), 27. vii. 1946, A. R. Brooks, CNC 391931 (1 ♀, CNC), 8. viii. 1946, G. E. Shewell, CNC 391932, CNC 479984 (2 ♀, CNC), Puslinch, Property of Bob Hanner, 43 ° 27 ' N, 80 ° 15 ' W, 335 m, hardwood forest, 18. ix. 2008, T. Terzin, CNC 391924 (1 ♂, CNC), 21. viii. 2008, CNC 391920 (1 ♀, CNC), 28. viii. 2008, CNC 391922 (1 ♀, CNC), 3. viii. 2008, CNC 391921, CNC 391923, CNC 391925 (1 ♂ 2 ♀, CNC), St. Lawrence Is. Nat. Park, Thwartway Is., 13. vii. 1976, H. J. Teskey, Code - 4073 Q, CNC 391927 (1 ♂, CNC), PE: Charlottetown, vii. 1967, N. L. H. Krauss (1 ♂, USNM), QC: Abbotsford, 18. v. 1936, Shewell, CNC 391928 (1 ♀, CNC), Beech Grove, 7. vi. 1955, J. F. McAlpine, CNC 479982 (1 ♀, CNC), Gatineau Hills, in park, King Mt. footpath, 30. vii. 1959, L. K. Smith, CNC 391906 (1 ♂, CNC), Old Chelsea, 11. viii. 1959, C. H. Mann, CNC 479980 (1 ♂, CNC), 25. vi. 1959, J. G. Chillcott, CNC 391907 (1 ♀, CNC), Rigaud, 11. vi. 1981, J. R. Vockeroth, CNC 479981 (1 ♂, CNC), SK: Prince Albert NP, Narrow Penninsula Trail, 53 ° 59 ' N, 106 ° 17 ' W, 530 m, white spruce and poplar forest, 14. vii. 2012, BIOBus, CNC 391916 (1 ♂, CNC). USA. MA: Bedford, 20. vii. 1961, swamp, W. W. Wirth (3 ♂ 2 ♀, USNM), Woods Hole, " 7 - 15 - 2 ", A. L. Melander (1 ♀, USNM), MD: Plummers Isl., 30. v. 1913, R. C. Shannon (1 ♀, USNM), Glen Echo, 9. vii. 1922, J. R. Malloch (1 ♀, USNM), Montgomery Co., Bethseda, G. C. Steyskal, 29. vii. 1972 (1 ♂, USNM), 23. v. 1970 (2 ♂, USNM), 17. v. 1969 (1 ♂, USNM), 4. vii. 1977 (1 ♂, USNM), Dickerton, 14. vii. 1974, G. A. Foster (2 ♂ 1 ♀, USNM), Sometset Co., Snow Hill, 16. vii. 1968, swamp margin, W. W. Wirth (2 ♂ 1 ♀, USNM), MI: Clinton Co., Rose Lake, 24. v. 1941, C. Sabrosky (1 ♀, USNM), NC: Gr. Smoky Mt. Nat. Pk., Clingman's Dome, 1920 - 2024 m, 18. vi. 1957, J. R. Vockeroth, CNC 479987 (1 ♂, CNC), Gr. Smoky Mt. Nat. Pk., Indian Gap, 1584 m, 2. vii. 1957, J. R. Vockeroth, CNC 479988 (1 ♀, CNC), Mt. Mitchell, 2072 m, 12. viii. 1957, J. G. Chillcott, CNC 479989 (1 ♀, CNC), NM: Cloudcroft, 9000 ', June, W. Knaus (1 ♂, USNM), NY: New York, 28. ix. 1921, A. H. Sturtevant (1 ♂, USNM), Long Island, Cow Neck, 24. v. 1963, spring seep, W. W. Wirth (1 ♀, USNM), Erie Co., E Concord Bog, 1. vi. 1963, maple swamp, W. W. Wirth (1 ♀, USNM), PA: Chester Co., Oxford, 127 West Locust, 29. ix. 1998, Malaise trap, RLS, 26 - iix, 6 - ix (1 ♂, USNM), VA: Shenandoah, Big Meadows, 15. vi. 1941, A. L. Melander (3 ♂, USNM), Fairfax Co., Dead Run, R. C. Shannon, 19. vi. 1915 (1 ♂, USNM), 28. vii. 1915 (1 ♀, USNM).	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
5BCAC7BD51C69CF38AAF5549F55B4AEC.taxon	description	Figs 711 - 715	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
5BCAC7BD51C69CF38AAF5549F55B4AEC.taxon	description	Description. Wing length 1.5 mm (♂), 1.3 - 1.6 mm (♀). Length of ultimate section of vein M 4 divided by penultimate section: 1.8 - 2.0. Eye height divided by gena height: 3.8 - 10.5. Eye minutely setulose dorsally. Vein r-m near basal 1 / 3 of cell dm. Frons soft medially. Chaetotaxy: One ori; two ors. Postocellar and ocellar setae well-developed, but not much longer than ocellar tubercle. Orbital setulae proclinate, in one row. Four dorsocentrals, one presutural, decreasing in length anteriorly with anterior two pairs considerably thinner and smaller, being <1 / 2 length of first dorsocentral. Several acrostichal setulae in two rows anteriorly that are often reduced to absent. Hairs on first flagellomere slightly longer than, or as long as arista base. Colouration: Frons brownish with tubercle brown; face, gena and parafacial light yellow; male first flagellomere lightly infuscated posteriorly; female first flagellomere and pedicel light brown, sometimes yellowish ventrally or basally. Notum brown with grey pruinosity, anterolateral margin of scutum yellow, and anatergite below scutellum darker; postpronotum and notopleuron yellowish; yellowish postsutural supra-alar stripe sometimes visible. Pleuron yellow with most of katepisternum and meron brown, remainder with limited, narrow spots sometimes visible, including anteroventrally and sometimes anteriorly on anepisternum. Apical surface of halter light brown. Calypter margin and hairs faintly brownish. Legs yellow with base of fore coxa light brown, tibiae brownish distally and tarsi brownish with distal segments darker; dorsal brown mottling faint apically on mid and hind femora, more developed subapically and apically on fore femur, pigment pronounced in [dissected] Ontario male and Californian specimens. Abdomen light brown, paler laterally and apically, epandrium yellow, oviscape brown to yellow with partial brown markings. Genitalia: (Figs 711 - 715) Epandrium rounded apically and with one tubercle-like seta on inner-distal margin. Surstylus narrow, curved, emerging from anterior margin of epandrium, with several apical setulae. Subepandrial sclerite H-shaped with lateral margins bowed. Hypandrium thin with lobe broad and bare. Postgonite narrowly rounded and cleft apically. Basiphallus sclerotised on dorsal margin. Paraphallus and hypophallus absent. Mesophallus not evident. Distiphallus composed of one pair of extremely elongate, narrow, clear tubules with base dark and slightly swollen. Ejaculatory apodeme stout, pale and fan-shaped with stem very short; sperm pump with lightly sclerotised band. Variation: Specimens from California with brownish palpus, specimens from Florida and Costa Rica with dark brown palpus. Florida specimen with narrow, distinct yellow postsutural intra-alar line and complete dorsocentral line; with enlarged setula in front of anterior dorsocentral; setulae on eye virtually absent.	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
5BCAC7BD51C69CF38AAF5549F55B4AEC.taxon	distribution	Distribution. Canada: ON *. USA: CA *, FL, KY *, MD *, MS *, VA *. Costa Rica. Puerto Rico. Spain (Canary Islands).	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
5BCAC7BD51C69CF38AAF5549F55B4AEC.taxon	materials_examined	Additional material examined. Canada. ON: Puslinch, Property of Bob Hanner, 43 ° 26 ' 47.04 " N, 80 ° 15 ' 4.32 " W, hardwood forest, 3. viii. 2008, T. Terzin, CNC 481319 (1 ♂, CNC). USA. CA: Marin Co., Alpine Lk., Lily Pond, 457 m, 17 - 25. v. 1971, Malaise trap, CNC 481320, CNC 481321 (1 ♂, 1 ♀, CNC), iv-v. 1970, D. D. Munroe, CNC 481323 - 481325 (3 ♀, CNC), v-vi. 1970, CNC 481322 (1 ♀, CNC), KY: Lexington, 2. xi. 1915, J. M. Aldrich (1 ♂, USNM), MD: " ChespkBch " " viii- 2 ", J. M. Aldrich (1 ♀, USNM), MS: Noxubee National Wildlife Refuge, near Bluff Lake, River Road, 33 ° 17 ' 12 " N, 88 ° 46 ' 42 " W, 65 m, 18 - 19. v. 2013, J. E. O'Hara, Malaise trap, CNC 758941 (1 ♀, CNC), VA: Falls Church, Holmes Run, 13. ix. 1960, light trap, W. W. Wirth (1 ♀, USNM).	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
B2A39645514D6067E34795268262B005.taxon	description	Figs 717 - 722	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
B2A39645514D6067E34795268262B005.taxon	description	Description. Wing length 1.5 - 1.6 mm (♂), 1.8 - 1.9 mm (♀). Length of ultimate section of vein M 4 divided by penultimate section: 1.2 - 2.0. Eye height divided by gena height: 1.9 - 2.7. Eye bare. Vein r-m near distal 1 / 3 of cell dm. Frons soft medially. Chaetotaxy: Two ori with anterior seta reduced to (rarely) absent; two ors. Orbital setulae minute, erect to reclinate, sometimes indistinct, in one row. Postocellar and ocellar setae well-developed, not much longer than tubercle. Four dorsocentrals, one presutural, decreasing in length anteriorly. Acrostichal setulae in four sparse rows. Setae sometimes appearing slightly to very conspicuously thin. Colouration: Setae dark with orbital setulae, vibrissa and genal and subgenal setae yellow in male, yellow to brownish or brown in female. Head mostly light yellow, whitish below antenna; ocellar tubercle and posterolateral margin of frons (including base of vertical setae) brown with faint stripe sometimes extending to base of posterior fronto-orbital; back of head brown above foramen; female first flagellomere with orange to brownish tint that fades at base. Notum dark brown, covered with short, relatively dense greyish pruinosity; lateral margin of scutum with yellow stripe that is narrower postsuturally, and with brown spot on notopleuron (minute) and postpronotum. Metanotum brown with most of katatergite yellow anteriorly. Pleuron light yellow with most of katepisternum (not reaching base of seta) and meron brown. Halter entirely white. Calypter margin and hairs brown. Legs light yellow with tarsi darker apically. Abdominal tergites brown with lateral margin yellow. Genitalia: (Figs 717 - 722) Epandrium with irregular row of long tubercle-like setae along posterior margin. Surstylus small and rounded with comb of long tubercle-like setae on inner surface of posterior margin; longer, pointed tubercles on shallow inner-basal process. Subepandrial sclerite U-shaped with one pair of medial setae, irregular lateral sclerotisations and one pair of thin ventral lobes. Hypandrium thin and narrowly arched, with several setae on long inner lobe. Basiphallus dark, not much longer than wide, positioned distally, separate from phallophorus. Mesophallus not evident. Hypophallus long and dark with membranous apex. Distiphallus a single pale tubule along most of length with base dark and heavily sclerotised ventrally; apex bifid, with tubules narrower and strongly divergent. Ejaculatory apodeme large and well-sclerotised stem short and base wide to one side; sperm pump clear.	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
B2A39645514D6067E34795268262B005.taxon	distribution	Distribution. Canada: NB *, NL *, NS *, ON, PE *, QC. USA: FL *, MD *, MI *, NH *, NY, VA *.	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
B2A39645514D6067E34795268262B005.taxon	materials_examined	Material examined. Canada. NB: Kouchibouguac N. P. Forest, 46 ° 50 ' N, 64 ° 55 ' W, edge, 30. vii- 8. viii. 2013, O. Lonsdale, CNC 316814 (1 ♀, CNC), NL: St. John's, Agric. Exp. Sta., 30. vii. 1967, J. F. McAlpine, CNC 391939 (1 ♂, CNC), NS: CBHNt. Pk., Mackenzie Mt., 13. vii. 1984, PG 640848, CNC 479976 - 479979 (1 ♂, 3 ♀, CNC), ON: Griffith, 7 mi east, 9. vii. 1991, J. R. Vockeroth, CNC 479975 (1 ♂, CNC), Simcoe, 14. vi. 1939, G. E. Shewell, CNC 391934 - 391936 (3 ♀, CNC), Bruce Co., Sauble Falls, ferns in clearing, 28. vii. 1977, W. Maddison (2 ♂ 1 ♀, ROM), Simcoe, 14. vi. 1939, G. E. Shewell, CNC 391934 - 391936 (3 ♀, CNC), PE: Charlottetown, vii. 1967, N. L. H. Krauss (2 ♀, USNM), QC: Cap Rouge, 7. vii. 1953, R. Lambert, CNC 391933 (1 ♂, CNC), Gatineau Pk., 13 km N of Eardley, 24. vi. 1988, H. C. Walther, CNC 479973, CNC 479974 (1 ♂, 1 ♀, CNC), Lac Brule, 7. viii. 1951, O. Peck, CNC 391938 (1 ♀, CNC). USA. FL: Mount Pleasant, 1. v. 1952, O. Peck, CNC 391937 (1 ♀, CNC), Orange Park, 25. iii. 1952, O. Peck, CNC 391940 (1 ♂, CNC), MD: Colesville, 4. vi. 1977, W. W. Wirth (1 ♂, USNM), MI: Hunt Ck., Exp. Sta., nr. Lewiston, 20. vii. 1942, C. W. Sabrosky (1 ♀, USNM), Cadillac, 15. vi. 1941, C. W. Sabrosky (1 ♀, USNM), Hart, 19. vi. 1939, C. W. Sabrosky (1?, USNM), Traverse City, 17. vi. 1943, C. Sabrosky (1 ♀, USNM), NH: White Mts., Stinson lake, 23. vii. 1961, W. W. Wirth (1 ♀, USNM), VA: Shenandoah, 14. vi. 1982, H. Goulet, big meadows (1 ♂, USNM).	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
19826757F1ECC197B39D825B7212730B.taxon	description	Figs 723 - 726	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
19826757F1ECC197B39D825B7212730B.taxon	description	Description. Wing length 1.6 - 1.8 mm (♂), 1.8 - 2.1 mm (♀). Length of ultimate section of vein M 4 divided by penultimate section: 1.4 - 1.6. Eye height divided by gena height: 2.2 - 2.6. Eye bare. Arista short, as long as scape to first flagellomere. Fronto-orbital plate and parafacial produced, continuing as " cheek " under eye. Veins R 4 + 5 and M 1 very closely spaced. Vein r-m at midpoint of cell dm. Chaetotaxy: Three ori (sometimes only two on one side); two ors. Orbital setulae absent. Postocellar and ocellar setae well-developed. Three postsutural dorsocentrals shorter than scutellar setae, strongly decreasing in length anteriorly, with third dc barely larger than surrounding setulae. Acrostichal setulae in four irregular rows that narrow to two posteriorly. Colouration: Head yellow with ocellar tubercle and spot between vertical setae brown (wider in male); clypeus dark brown (sometimes yellow medially); back of head dark brown with venter yellow; examined female with frons brownish with sides white pruinose and first flagellomere brownish posterodorsally; sometimes with spot at base of posterior one to three fronto-orbitals. Scutum dark brown with grey pruinosity, with postpronotum (excluding large spot), notopleuron, supra-alar region, and posterolateral spot yellow. Scutellum brown with ill-defined yellow medial stripe that widens apically. Metanotum dark brown with katatergite at least partially yellow anteriorly. Pleuron brown with dorsal margin of meron and dorsal margin of katepisternum (including base of seta) yellow; anepisternum and anepimeron mostly yellow in examined female, but almost entirely brown in holotype. Halter entirely white. Calypter margin and hairs dark brown. Male legs yellow with dorsal mottling on femora, tibiae brown dorsomedially (indistinct on fore leg and pronounced on hind leg), and tarsi brown with basal three segments on fore leg and basal two on mid leg yellow; female with tibiae and tarsi brown. Male abdomen brown with lateral and posterior margins of tergites 1 - 6 yellow, and anterolateral region of tergite 1 yellow; female abdomen brown to midpoint of tergite 6 (remainder of segment yellow), yellow beyond with oviscape dark brown. Genitalia: (Figs 723 - 726) Epandrium and surstylus simple, without spines or outstanding setae. Surstylus articulating with epandrium. Cercus small and weakly sclerotised, minutely setose. Subepandrial sclerite made of one pair of short, dark, widely separated lateral bars. Phallophorus cylindrical, relatively long, fused to atrophied and membranous phallus, which has one pair of narrow, weakly sclerotised basal bands, one pair of leaf-like extensions, and one short flagellate apical extension. Ejaculatory apodeme highly reduced, pale, and finger-like; sperm pump membranous.	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
19826757F1ECC197B39D825B7212730B.taxon	distribution	Distribution. USA: MD *, PA. Records from NY, VA and WV are likely misidentifications (Eiseman and Lonsdale 2018).	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
19826757F1ECC197B39D825B7212730B.taxon	materials_examined	Additional material examined. USA. MD: Pr. Georges Co., Oxon Hill, 19. iv. 1972, at black light, G. F. Hevel, " Phytoliriomyza sp. 1 ♀ " (1 ♀, USNM).	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
99E8F75B60BDE6F6685CA04CB2DF55F8.taxon	description	Figs 727 - 731	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
99E8F75B60BDE6F6685CA04CB2DF55F8.taxon	description	Description (from Eiseman and Lonsdale 2018 and Eiseman et al. 2021). Wing length 1.9 mm (♂), 2.3 - 2.5 mm (♀). Vein dm-m absent. Eye height divided by gena height: 2.3 - 3.1. First flagellomere small, rounded. Arista pubescent. Cheek present, ~ 2 / 5 height of gena. Posterior ocelli slightly displaced. Vein dm-cu absent. Body pruinose. Chaetotaxy: Two ori (anterior ori thin, setula-like to 2 / 5 length posterior ori, sometimes absent on one side); one ors. Ocellar and postvertical setae subequal to anterior ors. Four dorsocentral setae decreasing in length anteriorly with anterior two much shorter. Acrostichal setulae in three or four irregular to scattered rows that are clearly separated from dorsocentral rows. Colouration: Setae dark brown. Head mostly light yellow; very narrow brown margin around eye that is thickest ventromedially; antenna, back of head, clypeus, palpus and ventral line on gena dark brown; ocellar spot slightly larger than tubercle, dark brown to black, ovate, wider than long; posterolateral corner of frons dark brown to base of outer vertical seta, brown to light brown to base of inner vertical, sometimes with narrow dark line between base of setae; face with irregular brown colour with yellowish patches. Notum with light brown pruinosity that is denser and greyer on notum. Thorax dark brown with white lateral stripe narrowing posteriorly from postpronotum to supra-alar region (except for large dark spot on postpronotum), scutum with small whitish spot anterolateral to corner of scutellum, posterodorsal region of anatergite whitish, katatergite white with posteroventral region dark brown, meron dorsally white and anepimeron white with anterior 1 / 2 mostly brown. Wing veins whitish, paler to base. Calypter white. Haltere white. Legs dark brown with light yellow spot on femora apices as long as wide, base and apex of tibiae light yellow, and tarsi light yellow with brown tint and with apical tarsomere light brown; male and one female with mid tibia yellower and fore tibia mostly yellow. Abdomen dark brown. Genitalia: (Figs 727 - 7 31) Surstylus fused to epandrium, small, internally setose. Epandrium with narrow flat plate along posterior margin. Hypandrium well-developed, rounded. Postgonite stout, strongly curved medially, with one medial seta. Phallophorus well-developed. Basiphallus composed of two narrow plates; right plate extending onto dorsum basally; left plate shorter with basal arm wrapping around shaft. Hypophallus divided into two narrow lateral sclerotised bars with lobate extension on anterior margin near base. Paraphallus dark but strongly reduced to one pair of small pointed anteroventral extensions arising from mesophallus. Mesophallus small, cylindrical, laterally bulging distally and tapered basally where it is as wide as duct, fused to distiphallus. Distiphallus divided into one pair of long, narrow tubules, as long as remainder of phallus combined, that are strongly divergent at base (initially perpendicular to long axis of phallus), and converging and slightly curved along most of length. Ejaculatory apodeme well-developed with especially broad blade and base; sperm pump with transverse sclerotised bar that is broadly thickened at lateral margins. Variation: Virginia females differ as follows: face darker, venter of lunule and region around antennal bases blackish, and apices of mid and hind femora dark.	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
99E8F75B60BDE6F6685CA04CB2DF55F8.taxon	distribution	Distribution. USA: OH, VA [tentatively identified female]. Leaf mines from Canada (ON) and AL, AR, GA, IA, KS, MN, MO, NC, PA, SC, VA.	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
99E8F75B60BDE6F6685CA04CB2DF55F8.taxon	materials_examined	Additional material examined. USA. VA: Radford, Wildwood Park, 3. v. 2017, em. 8 - 11. iv. 2018, N. V. Kent, ex Aesculus flava, # CSE 4400, CNC 1135662 - 1135664 (3 ♀, CNC).	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
5C60D808C830C09B2693416EEFE60EBC.taxon	description	Figs 732 - 734	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
5C60D808C830C09B2693416EEFE60EBC.taxon	description	Description. Wing length 2.0 - 2.3 mm (♂), 2.5 mm (♀). Vein dm-m absent. Eye height divided by gena height: 3.1. Cheek short, but deep medially Chaetotaxy: Two ori (posterior ori sometimes appearing as ors); one ors. Two irregular rows of acrostichal setulae, ending medially or near posterior dorsocentral. Very few intra-alar setulae anteriorly. Ocellar and postocellar setae subequal to fronto-orbitals. Four dorsocentral setae, decreasing in length anteriorly. Smaller medial presutural supra-alar present. Colouration: Ocellar tubercle, back of head and palpus brown; clypeus brownish yellow to brown; posterior margin of frons dark brown lateral to base of outer vertical seta, and with faded spot behind base of inner vertical seta that may reach base of one or both verticals; first flagellomere and scape black; remainder of head light yellow (paler below antenna); base of fronto-orbitals sometimes with minute brown spot. Scutum dark brown with greyish pruinosity, with postpronotum, notopleuron and sometimes narrow to wide supra-alar region yellow, with small to large brownish medial spot on postpronotum. Scutellum brown with greyish pruinosity, excluding ill-defined yellow medial stripe that is constricted at midpoint; ON male with stripe nearly absent, most evident apically. Metanotum dark brown with katatergite at least partially yellow. Pleuron variable in colouration, darkest specimens being entirely dark brown with greyish pruinosity with dorsal margin of anepisternum narrowly yellow; paler specimens (ME male palest) with dorsum of katepisternum yellow (including base of seta in posterior mottled region), anepimeron mottled yellow, anepisternum yellowish brown with dorsal 1 / 4 yellow, and posteromedial margin and large anteroventral spot darker brown. Halter white. Calypter margin and hairs brown. Legs variable in colouration, darkest specimens brown with knees broadly yellow; paler specimens with only base of coxae brown, tibiae paler, and sometimes femora with pale mottling. Abdomen dark brown. Genitalia: (Figs 732 - 734) Hypandrium stout and broadly rounded, with inner lobes narrow, curved, joined medially and with two anterior setae. Postgonite dark, apically hooked, with one seta. Right 1 / 2 of basiphallus joined to dorsomedial margin of phallophorus; left side with ventrobasal process around shaft; rounded apically, nearly parallel-sided along length. Hypophallus membranous with one pair of flat, clavate laterobasal sclerites with outer margins subparallel. Mesophallus short, with narrow basal stem meeting duct; flanked by one pair of broad, rounded, flat paraphalli. Distiphallus with one pair of very narrow, dark, diverging tubules, subequal to length of mesophallus. Ejaculatory apodeme with stem short, with lateral subbasal swelling and blade broad with margins pointed.	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
5C60D808C830C09B2693416EEFE60EBC.taxon	distribution	Distribution. Canada: NS *, ON *, QC *. USA: ID, MD *, ME, OH.	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
5C60D808C830C09B2693416EEFE60EBC.taxon	materials_examined	Additional material examined. Canada. NS: Truro, 26. ix. 1913, CNC 480058 (1 ♂, CNC), ON: Marmora, 8. v. 1952, J. C. Mitchell, CNC 480059 (1 ♂, CNC), QC: Old Chelsea, 11. vi. 1959, J. R. Vockeroth, CNC 480057 (1 ♀, CNC). USA. MD: Montgomery Co., Colesville, 26. vi. 1977, Malaise trap, W. W. Wirth (1 ♂, USNM), ME: Washington Co., Perry, Birch Point, 15. vi. 2014, C. S. Eiseman, ex. Ranunculus repens em. 29. vi. 2014, # CSE 1141, CNC 384880 (1 ♂, CNC), OH: Hocking Co., South Bloomingville, Deep Woods Farm, 6. viii. 2016, C. S. Eiseman, Ranunculus recurvatus, em. 20. viii. 2016, # CSE 2927, CNC 654479 (1 ♂, CNC).	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
3C2CDCAEB1133FE9333B5B855F716619.taxon	description	Figs 735 - 740	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
3C2CDCAEB1133FE9333B5B855F716619.taxon	description	Description. Wing length 2.2 - 2.8 mm (♂), 2.5 - 2.8 mm (♀). Vein dm-m absent. Eye height divided by gena height: 3.3 - 4.5. Hairs on first flagellomere slightly longer and bushier, but not comparable to other species such as P. lactuca. Cheek narrow. Chaetotaxy: Two ori (anterior ori slightly to strongly reduced in length); two ors. Acrostichal setulae in four scattered rows that may become more regular anteriorly; sometimes appearing as five rows. Four dorsocentrals, decreasing in length anteriorly. Colouration: Head yellow with antenna black, and back of head and clypeus dark brown; palpus brownish to dark brown; posterolateral corner of frons to base of inner vertical seta dark brown, with spot sometimes faintly continuing narrowly along margin of eye to posterior ors; ocellar triangle dark brown, anterior corner rounded, slightly larger than tubercle, especially posterolaterally where corners bulge outwards to almost touch dark spot at base of vertical setae; face faintly brownish. Thorax dark brown with light dusting of brownish grey pruinosity (less so on pleuron); sometimes indistinct yellowish mottling on postpronotum and notopleuron along suture. Halter white. Calypter white with hairs brown. Legs dark brown with apex of femora yellow, tibiae yellowish to base and apex, and tarsi yellow with distal segments becoming darker. Abdomen dark brown. Genitalia: (Figs 735 - 740) Hypandrium well-developed, thickest at apex, inner lobe with projecting medial spinulose membrane and several empty sockets. Postgonite broad and pointed apically with one seta and two sockets. Halves of basiphallus narrow, separate; left sclerite abruptly S-shaped at base, right sclerite with wide basal extension. Hypophallus with one pair of short, narrow converging sclerites. Paraphalli converging, small, with rounded irregular base and narrow apical process. Mesophallus tubular, lightly sclerotised, apically widened to join distiphallus; with small dorsobasal band across surface. Distiphallus divided into two dark, slightly twisted arms that are shorter than mesophallus. Ejaculatory apodeme as long as wide, with stem and base short and narrow, blade becoming clear to distal margin.	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
3C2CDCAEB1133FE9333B5B855F716619.taxon	distribution	Distribution. Canada: AB, BC, MB, ON, YT. USA: MA, MD, NC, NY, PA, VA *.	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
3C2CDCAEB1133FE9333B5B855F716619.taxon	materials_examined	Additional material examined. Canada. MB: Aweme, 1. v. 1930, R. M. White, Columbine leaf miner CNC 480062, CNC 480060 (1 ♂, 1 ♀, CNC), ON: Ottawa, damp second growth Acer - Betula wood, 13. viii. 1991, J. R. Vockeroth, CNC 480065 (1 ♂, CNC), 2. viii. 1993, CNC 480064 (1 ♂, CNC), 6. viii. 1992, CNC 480066 (1 ♂, CNC), 7. viii. 2000, CNC 480067 (1 ♂, CNC), St. Lawrence Is. Nat. Park, McDonald Is., 7. vii. 1976, A. Carter, Code 4352 - L, CNC 480061 (1 ♂, CNC). USA. CA: SL Obispo, I. J. Condit, 13. i. 1912, bred from Aquilegia (5 ♂ 2 ♀, USNM), 13. i. 1912 (6 ♂ 2 ♀, USNM), Los Angeles Co., Westwood Hills, 19. x. 1940, ex. Columbina, R. M. Bohart (2 ♀, USNM), MA: Hampshire Co., Pelham, 88 Arnold Rd., 31. v. 2012, em. 25. v. 2012, C. S. Eiseman, ex blotch mine on Aquilegia vulgaris (2 ♂ [with puparia] 1 ♀, CNC), MD: Montgomery Co., Colesville, W. W. Wirth, 21. v. 1977 (1 ♂, USNM), 4. vi. 1977 (1 ♀, USNM), 1. v. 1977 (1 ♂ 1 ♀, USNM), Malaise trap, Bethseda, 22. vii. 1972, G. C. Steyskal (1 ♂, USNM), ME: bred, Bar Harbor, 8. viii. 1938, A. E. Brower (1 ♂ 3 ♀, USNM), NC: Durham Co., Durham, Pelham Rd., 21. v. 2015, T. S. Feldman, Aquilegia, em. 6. vi. 2015, # CSE 1623, CNC 564653 - 564656; CNC 564657 (1 ♂ 4 ♀, CNC), VA: Shenandoah, Big Meadows, A. L. Melander, 15. vi. 1941 (1 ♂, USNM), 1. vii. 1939 (1 ♀, USNM). Location unknown. miner Aquilegia CNC 480063 (6 ♂ / ♀ [same pin], CNC).	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
541F1339DDFC2B8D2F23EEDB2E3CE9E2.taxon	description	Figs 741 - 744	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
541F1339DDFC2B8D2F23EEDB2E3CE9E2.taxon	description	Description. Wing length 1.5 - 1.7 mm (♂), 1.7 - 2.0 mm (♀). Vein dm-m absent. Eye height divided by gena height: 2.4 - 3.8. Female first flagellomere large, rounded, 1 / 2 height of eye; male first flagellomere slightly larger than that of sibling species, as high or higher than long. Fronto-orbital plate well-sclerotised, shiny and clearly delimited, slightly widened, more evident posteriorly; soft medial portion of frons wider than long behind relatively broad, deep lunule. Chaetotaxy: Setae short and gracile, particularly on notum. One ori, sometimes with smaller anterior seta; one longer medial ors. Orbital setulae very few in number, slightly longer than average. Postocellar and ocellar setae nearly as long as, and slightly thinner than ori. Acrostichal setulae in two sparse rows or absent. Four dorsocentral setae, decreasing in length anteriorly. Colouration: Head dirty yellow with tubercle, back of head, posterior region of postgena, clypeus, palpus, ventral margin of gena, fronto-orbital plate and ring around eye including parafacial and cheek dark brown; lunule usually brownish to brown, anteromedial region of frons sometimes browner; antenna dark brown with first flagellomere nearly black; face brown; gena usually brownish or distinctly brown. Thorax dark brown, subshiny. Halter white. Calypter margin brownish, hairs brown. Legs brown with apex of femora yellow for a distance sometimes greater than width of femur apex. Abdomen brown. Female slightly darker. Genitalia: (Figs 741 - 744) Hypandrium broadly arched; inner lobe short and broad with three setae. Postgonite long, upcurved and cleft apically, with one seta. Halves of basiphallus relatively short, as long as enlarged hypophallus; crossing near base, strongly diverging apically to base of hypophallus. Mesophallus indistinct. Distiphallus narrow, tubular, lightly pigmented, apex swollen, angled dorsally, as long as basiphallus. Ejaculatory apodeme small, not much longer than wide, with much of sperm pump and base of duct pigmented.	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
541F1339DDFC2B8D2F23EEDB2E3CE9E2.taxon	distribution	Distribution. Canada: AB, ON. USA: CA, CT, DC, DE *, IL, MA, MD *, NC, NY.	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
541F1339DDFC2B8D2F23EEDB2E3CE9E2.taxon	materials_examined	Additional material examined. Canada. ON: Ancaster, 26. vi. 1955, O. Peck, CNC 480072 (1 ♀, CNC), Ottawa, Central Experimental Farm, 31. v. 2013, O. Lonsdale, leaf mine Aquilegia CNC 454640 - CNC 454659 (10 ♂ 10 ♀, CNC), Constance Bay, 31. v. 2013, O. Lonsdale, leaf miner on Aquilegia sp., CNC 799378 (1 ♂, CNC). USA. CT: Newhaven, 2. ix. 1984, C 398 (1 ♂, USNM), 29. ix. 1894 (1 ♂ 1 ♀, USNM), DC: Washington, 14. v. 1915, from columbine, R. L. Woglum (3 ♂ 8 ♀, USNM), DE: Newark, 15. vi. 1979, R. M. Hendrickson, Jr., reared ex. Aquilegia sp. (6 ♂ 4 ♀, USNM), IN: Lafayette, 28. ix. 1916, Satterthwait coll., reared from leaf miner, Cage No. C 862 b (1 ♂, USNM), MA: Hampshire Co., Pelham, 88 Arnold Rd., 25. v. 2012, em. 4. vii. 2012, C. S. Eiseman, ex linear mine Aquilegia vulgaris (1 ♂, CNC), MD: Montgomery Co., Bethseda, v. 1972, ex. cwt Aquilegia (9 ♂ 6 ♀ [with puparia and chalcidoid], USNM), " May 26 ", " Cory 1914, bred from columbine ", " exp. No. [illegible] (1 ♂, USNM), NY: Ithaca, reared from columbine, S. W. Frost, Lot A- 25, sub 5 (1?, USNM). Location Unknown. mine in Aquilegia CNC 480071 (7 ♂ / ♀, CNC), ILLR (1 ♀, USNM).	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
4F4C2DA395C5030AC8FE3C3CCD50CA80.taxon	description	Figs 745 - 747	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
4F4C2DA395C5030AC8FE3C3CCD50CA80.taxon	description	Description. Wing length 2.4 mm. Vein dm-m absent. Eye height divided by gena height: 3.0. First flagellomere slightly enlarged and subrectangular, thick. Border of fronto-orbital plate not evident. Cheek distinct, deepest part of ring around eye, but anterior region of fronto-orbital plate also clearly visible laterally. Chaetotaxy: Two ori on one side and one on the other; two ors. Four dorsocentrals, decreasing in height anteriorly with anterior seta nearly 1 / 2 length of posterior seta. Acrostichal setulae in two irregular rows to level of second dorsocentral that sometimes appear as three rows. Very few scattered intra-alar setulae. Colouration: Head light yellow with back of head, ocellar spot, posterolateral corner of frons (enclosing base of vertical setae), antenna, palpus and clypeus dark brown; ocellar spot small but relatively broad, subquadrate. Thorax dark brown with greyish pruinosity. Wing veins light brown to brown. Halter white. Calypter margin white with hairs light brown. Legs dark brown with apices of femora light yellow for length less than apical width of femora, more faded on mid and hind legs. Abdomen dark brown. Genitalia: (Figs 745 - 747) Hypandrial lobe narrow and transverse, following inner margin of postgonite. Postgonite large, strongly hooked anteriorly, broadly flattened behind apex and with one outer seta. Phallophorus fused to T-shaped basiphallus. Hypophallus membranous and with two overlapping transverse lobes. Paraphalli made up of two flattened, widely spaced plates that are perpendicular to basiphallus. Mesophallus not evident. Distiphallus shorter than paraphallus, cylindrical, slightly compressed dorsoventrally, with base widened in ventral view and narrower in profile; apex clear, membranous, enclosing inner-ventral sclerotisation.	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
4F4C2DA395C5030AC8FE3C3CCD50CA80.taxon	distribution	Distribution. USA: VA.	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
4F4C2DA395C5030AC8FE3C3CCD50CA80.taxon	etymology	Etymology. The specific name compounds the Latin for bird (avis) and run (cursus), referring to the type locality.	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
4BEA88BBA4B6E14FEC678A45EC4AF73A.taxon	description	Figs 138, 748 - 750	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
4BEA88BBA4B6E14FEC678A45EC4AF73A.taxon	description	Description (Fig. 138). Wing length 3.2 - 3.5 mm (♂), 3.4 - 3.8 (♀). Vein dm-m absent. Eye height divided by gena height: 2.1 - 2.8. Eye relatively small and round; parafacial and fronto-orbital plate produced dorsally, visible laterally. Labellum relatively long and pointed. With faint brown pruinosity that is denser dorsally on head and thorax. Chaetotaxy: Two to four ori; two ors (anterior seta inset). Ocellar and postocellar setae exceeding length of ors. Four dorsocentrals, one presutural, decreasing in height anteriorly. Up to six scattered rows of acrostichal setulae, strongly reduced in number posterior to second dorsocentral. Colouration: Head light brown to yellowish with palpus brown, ocellar tubercle, posterior margin of frons, lateral margin of frons (stripe barely touching base of fronto-orbitals, disappearing anteriorly), clypeus, venter of gena, face, first flagellomere, lunule (at least widely above antennal bases) and back of head dark brown; gena and frons sometimes browner. Thorax dark brown with postpronotum and notopleuron sometimes reddish. Calypter white with hairs dark brown. Halter white. Legs dark brown. Female abdomen yellow with oviscape dark brown and anterior margin of tergite 6 (and sometimes 4 and 5) brownish; male abdomen as described for female except tergite six, sternite 8 and epandrium brownish; sometimes abdomen brown past tergite 3 or anterior 1 / 2 of tergite 3 brown and tergites 1 and 2 brownish, but posterior margins of tergites 2 - 5 always yellow. Genitalia: (Figs 748 - 750) Inner lobe of hypandrium with separate, elongate medial process. Postgonite well-developed. Basiphallus halves narrow, flat, dorsal, left sclerite longer and fused to phallophorus. Hypophallus membranous. Paraphalli dark, narrow, converging to base of distiphallus; wider and paler basally. Mesophallus short, pigmented, slightly wider than duct, widening to distiphallus. Distiphallus made up of one pair of dark, very narrow tubules that diverge basally and are nearly parallel on distal 1 / 2. Ejaculatory apodeme very small with distal 1 / 2 of blade pale to clear; sperm pump with small, sclerotised patch.	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
4BEA88BBA4B6E14FEC678A45EC4AF73A.taxon	distribution	Distribution. Canada. ON *. USA. CT *, IN, NY, TN *, VA.	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
4BEA88BBA4B6E14FEC678A45EC4AF73A.taxon	materials_examined	Additional material examined. Canada. ON: Spring Creek, 10. vi. 2007 [1 ♀, photo voucher by S. A. Marshall]. USA. CT: Stanford, 18. v. 1919, A. H. Sturtevant (2 ♂ 1 ♀, USNM), NY: Ithaca, 3. vi. 1917, S. H. Emerson (1 ♂, USNM), Ithaca, 11. vi. 1935, H. K. Townes (1 ♀, USNM), Remus Pt., Chautauqua Lake, 31. v. 1963, swampy woods, W. W. Wirth (2 ♂, USNM), Allegany State Park, 28. v- 3. v. 1963, stream margin, W. W. Wirth (1 ♀, USNM), TN: Sevier Co., Rte. 441, 3 mi NW NC / TN border, Great Smokey Mtn. N. P., 35 ° 38.3 ' N, 83 ° 27.8 ' W, 4500 ', 27. v. 1999, S. D. Gaimari (1 ♀, USNM), VA: Shenandoah, Big Meadows, 15. vi. 1941, A. L. Melander (3 ♂, USNM), Fairfax Co., Turkey Run Park, nr. Mouth of Turkey Run, 38 ° 57.9 ' N, 7 ° 09.4 ' W, Malaise trap, 18 - 30. v. 2007, D. R. Smith (1 ♀, USNM), Smyth Co., Mt. Rodgers, 1432 - 1615 m, 1. v. 1962, J. R. Vockeroth, CNC 480074 (1 ♀, CNC).	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
7CB902B52BE6925AC8C69B7D2F66A3DD.taxon	description	Figs 751 - 753	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
7CB902B52BE6925AC8C69B7D2F66A3DD.taxon	description	Description. Wing length 1.9 mm (♂). Female unknown. Vein dm-m absent. Eye height divided by gena height: 3.7. First flagellomere ovate, slightly longer than high. Inner margin of fronto-orbital plate not evident, but slightly more sclerotised and raised at and lateral to base of fronto-orbitals. Cheek present. Chaetotaxy: Two ori (anterior seta 2 / 3 length); two ors. Four dorsocentrals, decreasing in height anteriorly, with anterior three pairs slightly thinner than posterior pair and more equal in length. Acrostichal setulae in four scattered rows. Intra-alar region with moderate presutural setulae and only two postsutural setulae. Colouration: Head brown with antenna, first flagellomere, posterior margin of frons, posterior 1 / 2 of fronto-orbital plate from second ors, back of head, clypeus, palpus and ventral margin of gena dark brown; anterior 1 / 2 of frons slightly darker; ocellar tubercle very dark, broadly triangular with rounded corners, not touching back of head, leaving postocellars on paler ground. Notum dark brown with moderate brownish silver pruinosity; notopleuron slightly paler. Wing veins brown. Halter white. Calypter margin yellow and hairs light brown. Legs dark brown with apices of femora yellowish. Genitalia: (Figs 751 - 753) Hypandrium short and thick with broad haired membrane attached to small setose inner lobe. Postgonite emarginate on inner-distal margin and with one seta. Sclerites of basiphallus long and narrow with bases overlapping and interlocking. Sclerite of hypophallus small, pale, flat, separate, in line with basiphallus. Mesophallus and paraphallus not evident. Distiphallus narrow and flat, apically emarginate, dorsally angled and with dark V-shaped sclerotisation; sides with narrow flared lateral wing. Ejaculatory apodeme short, narrow and dark.	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
7CB902B52BE6925AC8C69B7D2F66A3DD.taxon	distribution	Distribution. USA: VA.	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
7CB902B52BE6925AC8C69B7D2F66A3DD.taxon	etymology	Etymology. The specific epithet is Latin for " little chain ", referring to this species' size and type locality.	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
EEF75D662D9F3F148B36AC53F8CAA9EC.taxon	description	Figs 24, 25, 754 - 756	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
EEF75D662D9F3F148B36AC53F8CAA9EC.taxon	description	Description. Wing length 3.1 - 3.5 mm (♂), 3.6 mm (♀). Vein dm-m absent. Eye height divided by gena height: 2.4 - 3.6. Fronto-orbital plate slightly projecting. Parafacial narrow; cheek distinct, at least as high as ventral region of gena. Chaetotaxy: Two ori; two ors. Four dorsocentrals, one presutural, decreasing in height anteriorly. Four to five sparse, scattered rows of acrostichal setulae that nearly reach posterior margin of scutum. Colouration: Head mostly pale yellow; antenna light brown to brown with first flagellomere dark brown; ocellar triangle not distinct, but brown to dark brown spot slightly larger than tubercle, bulging anterolaterally to sometimes form a rounded square; posterolateral margin of frons brown, spot reaching base of inner vertical seta and extending slightly anteriorly, but not reaching base of fronto-orbitals; clypeus dark yellow to dark brown; palpus light to dark brown; back of head dark brown. Thorax dark brown with dense grey pruinosity that is strongest dorsally; remainder of body with faint pruinosity evident on pigmented regions; similar whitish pruinosity along lateral margin of frons (as seen in some Phytoliriomyza). Halter white. Calypter entirely whitish yellow. Legs brown with bases of tibiae narrowly yellow and apices of femora yellow for length nearly equal to width of femur apex. Abdomen brown, sometimes with posterior margin of tergites yellow (holotype with most of first and second tergites yellow with wide brownish medial spot). Genitalia: (Figs 754 - 756) Inner lobe of hypandrium with one seta and broadly membranous, with membrane spreading around inner margin of hypandrium. Postgonite long, broad and mostly flat with large outer lobe and folded inner layer. Basiphallus Y-shaped with short apical split and longer dorsomedial plate that is irregular to right side and better sclerotised along left. Paraphallus narrow, dark, and sinuate with small pigmented spot below base. Mesophallus shorter than paraphallus, clear, and laterally compressed, being only broader at rounded base (base tapered when viewed laterally). Distiphallus as high as mesophallus, appearing bifid ventrally but fused along length, and with narrow transverse pigmented band basally; " halves " of distiphallus straight, as in HT, or V-shaped, as figured. Ejaculatory apodeme short, barely widened apically, and with stout base; sperm pump without ventral sclerotisation.	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
EEF75D662D9F3F148B36AC53F8CAA9EC.taxon	distribution	Distribution. Canada. QC. USA: IN, NC, TN.	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
EEF75D662D9F3F148B36AC53F8CAA9EC.taxon	materials_examined	Additional material examined. Canada. QC: Old Chelsea, 18. vii. 1965, J. R. Vockeroth, ex fruit Chelone glabra, CNC 480075 (1 puparium [gel capsule], CNC). USA. NC: Mt. Mitchell, 6800 ', 12. viii. 1957, J. G. Chillcott (1 ♂, USNM), Mt. Mitchell, 2072 m, 12. viii. 1957, J. G. Chillcott, CNC 480076 (1 ♂, CNC), Highlands, 1158 m, 21. viii. 1957, J. G. Chillcott, CNC 480078 (1 ♀, CNC), TN: Great Smoky Mountains N. P., Indian Gap to Clingman's Dome, 5200 - 6600 ', 6. viii. 1957, J. G. Chillcott (1 ♂, USNM), Gr. Sm. Mt. Nat. Park, Indian Gap to Clingman's Dome, 1584 - 2011 m, 6. viii. 1957, J. G. Chillcott, CNC 480077 (1 ♂, CNC).	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
1B86658E64BB441BAA3DE49D40B1E3B8.taxon	description	Figs 760 - 762	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
1B86658E64BB441BAA3DE49D40B1E3B8.taxon	description	Description. Wing length 2.0 - 2.4 mm (♂), 2.4 - 2.5 mm (♀). Vein dm-m absent. Eye height divided by gena height: 2.3 - 3.6. First flagellomere relatively large, broad and longer than high, with shape subcircular to more subrectangular; length at most 1 / 3 more than height; hairs on most of segment elongate and sometimes bushy (more so towards anterior margin), with length usually not exceeding width of base of arista. Cheek distinct. Chaetotaxy: One ori; two ors. Postocellar and ocellar setae subequal to fronto-orbitals. Four dorsocentrals decreasing in size anteriorly. Two rows of acrostichal setulae. Colouration: Setae brown with pale shine (not dark brown to black). Head mostly light yellow; ocellar tubercle brown medially with spot extending to ocelli; fronto-orbital plate to posterolateral corner of frons around vertical setae whitish, faintly white pruinose; back of head with dark brown spot above foramen (not reaching margin); first flagellomere black; palpus brownish to brown or yellow, sometimes only darker apically. Notum light yellow with wide medial stripe between dorsocentral rows on anterior 2 / 3, one pair of floating intra-alar stripes near centre, and sometimes one pair of narrow, sometimes curved, postsutural supra-alar stripes; grey pruinosity evident on darker regions. Metanotum light yellow with mediotergite and venter of anatergite dark brown with greyish pruinosity. Pleuron mostly light yellow with faint grey pruinosity evident on pigmented regions; anepisternum with nearly indistinct, narrow, irregular anteroventral stripe; katepisternum with dark ventral spot that does not reach base of seta; meron mostly brown. Halter white. Calypter white. Legs yellow with distal segments of tarsi becoming more brown or brownish apically. Abdomen yellow (excluding oviscape), with dorsum brownish anterior to terminalia in male; posterior margin of tergites yellow. Genitalia: (Figs 760 - 762) Hypandrium with two setae and haired membrane projecting from inner lobe. Postgonite cleft apically and with several outer subapical sockets and one seta. Epiphallus with broad, flat lateral arm. Halves of basiphallus broad and interlocking at base, with strong ventrobasal arm on left 1 / 2. Sclerotized halves of hypophallus broadly arched and well-sclerotised with apices broad and narrow, nearly meeting medially; basal 1 / 2 curved, stouter and darker, distal 1 / 2 paler, similarly curved and directed downwards at apex. Mesophallus rounded at base, longer than wide, dark and subcylindrical, fused to distiphallus; mesophallus + distiphallus as long as basiphallus. Distiphallus dark, entirely split into one pair of narrow tubules that are slightly flared apically. Ejaculatory apodeme with base and margin closest to duct dark with remainder pale to clear; sperm pump dark ventrally. Variation: MD males differs as follows: notal stripes fused into one large irregular spot; side of scutellum brownish; tibiae and tarsi brownish; eye height divided by gena height: 2.6; wing length 1.9 mm.	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
1B86658E64BB441BAA3DE49D40B1E3B8.taxon	distribution	Distribution. Canada: AB. USA: CO, MD *, MT.	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
1B86658E64BB441BAA3DE49D40B1E3B8.taxon	materials_examined	Additional material examined. USA. CO: Fremont Co., Bear Creek, Forest Rd 101, off of 49 Rd, 7. vii. 2015, C. S. Eiseman, Clematis, em. 19 - 22. vii. 2015, # CSE 1728, CNC 654335, CNC 654336 (1 ♂, 1 ♀, CNC), MD: Colesville, W. W. Wirth, 14. vi. 1977 (1 ♀, USNM), 18. vi. 1977 (1 ♂, USNM), 28. v. 1977 (3 ♂, USNM).	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
7ED1BB540B95398A9E18103FA92382C7.taxon	description	Figs 132, 763 - 765	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
7ED1BB540B95398A9E18103FA92382C7.taxon	description	Description (Fig. 132). Wing length 2.9 - 3.3 mm (♂), 3.0 - 3.8 mm (♀). Vein dm-m absent. Eye height divided by gena height: 2.7 - 3.3. Hairs on first flagellomere long, bushy; segment rounded, longer than high, narrowing or wider apically, sometimes appearing subrectangular. Cheek distinct. Chaetotaxy: Two ori with anterior seta shorter and much thinner (not more than 3 / 5 length posterior ori), sometimes absent on one side; two ors. Two rows of acrostichal setulae. Four subequal dorsocentral setae. Smaller medial presutural supra-alar present. Colouration: Overall colour yellow, more faintly greyish on pleuron; greyish pruinosity evident on pigmented regions, densest dorsally on thorax. Lunule, fronto-orbital plate and posterolateral corner of frons light yellow; ocellar tubercle brown medially with extensions to ocelli; frons posterior to postocellar yellow; back of head brown above foramen; first flagellomere black; palpus brown with base variably yellow. Scutum dark brown with postpronotum, notopleuron, anterior margin beside postpronotum to dorsocentral row, lateral and posterolateral margins to corner of scutellum yellow; sometimes with regions anterior to scutellum between dorsocentrals yellowish; if posteromedial region more clearly yellow, then pattern partially vittate, with posterolateral supra-alar stripe partially differentiated and with nearly indistinct yellow line along dorsocentral row, thereby appearing as a more widely infuscated P. clematiphaga. Scutellum yellow with brownish lateral and anteromedial spots. Pleuron yellow with faded brownish anteroventral stripe on anepisternum sometimes evident, meron brown ventrally, katepisternum with large spot not reaching base of seta, and anepimeron sometimes with brownish mottling. Mediotergite dark brown, anatergite brown, katatergite yellow with posteroventral corner brown. Halter white. Calypter white with hairs brown. Tibiae brown to brownish yellow and tarsi brown. Male abdomen yellow; female abdomen brownish dorsally or with reduced pigment medially on tergites 1 and 2 and anteriorly on tergites 3 - 5; oviscape brown laterally, posteriorly, and sometimes dorsally, but always yellowish or with yellow mottling. Genitalia: (Figs 763 - 765) Hypandrium short, stout and broadly rounded with narrower, projecting apex; inner lobe with two setae and haired membranous extension. Postgonite broad and relatively flat with one outer seta. Halves of basiphallus narrow, interlocking at base, with dorsal subapical extension nearly reaching paraphallus, and with small, pale ventroapical extension. Hypophallus U-shaped with arms subparallel; basally with tubular membranous chamber with one pair of ill-defined sclerotised strips flanking it where it differentiates into a free, upcurved flagellum. Paraphalli dark, ~ 3 x longer than wide, connected by membrane along venter, covering base of distiphallus; angled dorsally. Ejaculatory duct sclerotised subapically, meeting small, ill-defined, and enclosed mesophallus. Distiphallus entirely split into one pair of diverging tubules ca. as long as hypophallus that are angled towards base of phallus; tubules sclerotised on distal 1 / 2, but with slightly longer sclerotised ventral extension basally; single rod-like sclerite floating between arms of distiphallus. Ejaculatory apodeme large, clear to blade margin and with venter of sperm pump dark.	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
7ED1BB540B95398A9E18103FA92382C7.taxon	distribution	Distribution. Canada: ON *. USA: ME *, NC, NY *, TN, VA, WA *.	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
7ED1BB540B95398A9E18103FA92382C7.taxon	materials_examined	Additional material examined. Canada. ON: Thornhill, 30. v. 1964, J. R. Vockeroth, CNC 480079 (1 ♀, CNC). USA. ME: Belfast, 16 - 20. ix. 1946, C. W. Sabrosky (1 ♀, USNM), NY: Slide Mt., 25. viii. 1935, 4200 ', H. K. Townes (1 ♂ 4 ♀, USNM), WA: Mt. Rainier, VanTrump Crk., 2. ix. 1917, A. L. Melander (1 ♀, USNM).	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
94D8C4E68DAADCB90844C1A4A7320A6F.taxon	description	Figs 134, 766 - 770	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
94D8C4E68DAADCB90844C1A4A7320A6F.taxon	description	Description (Fig. 134). Wing length 2.1 mm (European ♂), 2.3 mm (WA ♂), 1.6 - 2.3 mm (♀). Vein dm-m absent. Eye height divided by gena height: 1.9 - 4.0. Arista laterally flattened, tapered on apical 1 / 2. First flagellomere slightly longer than high, broadly rounded apically, profile sometimes slightly subrectangular; hairs slightly longer than average, relatively dense. Fronto-orbital plate projecting anteriorly, and parafacial narrow but sometimes also prominent when viewed laterally. Ocellar triangle slightly larger than tubercle, sometimes subcircular. Cheek pronounced. Chaetotaxy: One ori in female, two in male; two ors. Ocellar and postocellar setae fine and sometimes longer than fronto-orbitals. Four dorsocentrals, decreasing in length anteriorly. Two sparse rows of acrostichal setulae anteriorly. Intra-alar setulae strongly reduced to one or a few setulae anteriorly. Colouration: Body with faint greyish pruinosity evident on pigmented regions, which is denser on thorax, especially on dorsum. Head light yellow with frons sometimes slightly darker; clypeus, palpus and first flagellomere dark brown; scape, pedicel, ocellar triangle, back of head, posteroventral margin of gena and posterolateral corner of frons lateral to base of inner vertical seta brown; fronto-orbital plate with faint, fine whitish pruinosity that appears grey on an angle (as in some Phytoliriomyza); fronto-orbital plate with minute to large spots around bases of fronto-orbitals that are sometimes connected to faint brownish grey line along eye margin that uncommonly extends from dark posterolateral corner of frons. Thorax dark brown with grey pruinosity. Halter white. Calypter entirely yellowish white. Legs mostly dark brown, with apex of femora yellow for length greater than width of femur apex, and fore coxa variably yellow, but always with at least apex yellow and base dark. Abdomen brown; side of tergites yellow in female. Genitalia: (Figs 766 - 770) Epandrium rounded, fused to small, setose surstylus. Cercus small, outer-dorsal margin ill-defined. Hypandrium broadly rounded with wide apical apodeme; inner lobe discrete, with two setae, connected via weak lateral sclerotisation and oblique distal band. Postgonite well-developed with strong apical arch. Basiphallus with two ill-defined, dextrally twisted bands that are each weakly defined and dorsally fused, forming a broad transverse apical plate. Hypophallus membranous, small, concave. Paraphalli lateral, asymmetrical, right sclerite largely desclerotised except at base, and left sclerite large, weakly sclerotised and clavate with basal stem abruptly narrowed; with one pair of darker inner accessory sclerites that flank mesophallus and are connected to distiphallus ventrally by membrane. Mesophallus (interpreted as thicker basal section of distiphallus connected to narrower ejaculatory duct) not readily differentiated from distiphallus, tubular, clear. Distiphallus tubular, mostly clear, slightly flared at opening, with band-like medial sclerotisation with ventral suture and narrow basomedial stem.	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
94D8C4E68DAADCB90844C1A4A7320A6F.taxon	distribution	Distribution. Canada. ON *, QC (leaf mine). USA: CA, ID, IN *, MA, MD, ME (leaf mines), NC, NJ *, NY, PA, VA, WA, WV. Argentina, Chile, Europe, Japan, Turkey, Russia (Papp and Cerny 2020).	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
94D8C4E68DAADCB90844C1A4A7320A6F.taxon	materials_examined	Material examined. Canada. ON: Wellington Co., Smith Property Trail nr. Arkell, 43 ° 33 ' N, 80 ° 11 ' W, 23. vi. 2015, O. Lonsdale, CNC 441143 (1 ♀, CNC), Halton, Norval, 5. vi. 2008, on Veronica spicata, D. Cheung (1 ♀, photo voucher - Fig. 134). Chile. Estero la Jaula Curico, 1600 m, Nothofagus, i. 1964, L. Pena, CNC 480097 (1 ♀, CNC), Piscicultura Aconcagua, 1600 m, 11. xi. 1963, L. Pena, CNC 480096 (1 ♀, CNC). England. Chippenham Fen, Cambs., 20. ix. 1958, [K. A. Spencer], CNC 480093 (1 ♂, CNC), [illegible] Head, S Devon, 7. ix. 1954, [K. A. Spencer], Veronica em. 29. ix. 1954, CNC 480094 (1 ♀, CNC). Germany. Saxony-Anhalt: Tilleda, Sud Kyffhausse, x. 1962, I. Michel, mine an Veronica " Z No. 1962 Hering: Z, CNC 480095 (2 ♀, CNC). USA. ID: Collins, A. L. Melander (1 ♀, USNM), IN: Lafayette, J. M. Aldrich, 10. vi. 1915 (1 ♀, USNM), 6. vii. 1915 (1 ♀, USNM), Michigan City, 29. vi. 1915, J. M. Aldrich (1 ♀, USNM), MA: Franklin Co., Sunderland, Falls Rd., 13. vii. 2012, em. 23. vii. 2012, C. S. Eiseman, ex Veronica officinalis (1 ♀ [with puparium], CNC), Hampshire Co., Pelham, 88 Arnold St., 25. vi. 2014, C. S. Eiseman, ex. Veronica chamaedrys em. 2 - 16. vii. 2014, # CSE 1148, CNC 384850 - 384862 (13 ♀, CNC), MD: Glen Echo, 29. v. 1919, J. M. Aldrich (1 ♀, USNM), Montgomery Co., Colesville, 14. vi. 1976, Malaise trap, W. W. Wirth (2 ♀, USNM), Bethseda, G. C. Steyskal, 3. vi. 1972 (1 ♀, USNM), 16. vii. 1967 (1 ♀, USNM), 4 mi SW of Ashton, 25. iv. 1987, G. F. and J. F. Hevel (1 ♀, USNM), Forest Glen, 25. vi. 1967, W. W. Wirth (1 ♀, USNM), P. G. Co., Camp Springs, G. F. Hevel, Malaise trap, 9. vii. 1979 (1 ♀, USNM), 8. vii. 1979 (2 ♀, USNM), 16. vii. 1979 (1 ♀, USNM), Carroll Co., Eldersburg, 2. vi. 1985, W. E. Steiner and J. E. Lowry (1 ♀, USNM), NC: Chatham Co., Haywood, 5. vi. 1986, G. C. Steyskal (3 ♀, USNM), Macon Co., Highlands, Lake Ravenel, Malaise trap, W. W. Wirth, 14. vi. 1986 (1 ♀, USNM), 19. vi. 1986 (1 ♀, USNM), Durham Co., Durham, Pelham Rd., 20. iv. 2016, T. S. Feldman, Veronica peregrine, em. 14 - 16. v. 2016, # CSE 2461, CNC 634800 - 634803 (4 ♀, CNC), Scotland Co., Laurinburg, St. Andrews University, 2. v. 2016, T. S. Feldman, Veronica arvensis, em. 17. v. 2016, # CSE 2468, CNC 634782 (1 ♀, CNC), Durham Co., Durham, Duke University, 23. v. 2016, T. S. Feldman, Veronica persica, em. 29. v- 3. vi. 2016, # CSE 2517, CNC 654295 - 654302 (8 ♀, CNC), NJ: Morristown, 9. iv. 1922, A. H. Sturtevant (1 ♀, USNM), NY: Bear Mt., 8. vi. 1918, A. H. Sturtevant (1 ♀, USNM), PA: Dubois, 3. ix. 1927, A. L. Melander (1 ♀, USNM), VA: Glencarlyn, 30. v. 1925, J. R. Malloch (1 ♀, USNM), Arlington, 18. v. 1982, F. C. and B. J. Thompson (1 ♀, USNM), Alexandria, 11. vi. 1952, W. W. Wirth (1 ♀, USNM), Pulaski, 7. v. 1979, G. Steyskal (2 ♀, USNM), Fairfax Co., Great Falls Park, quarry, 38 ° 59.1 ' N, 77 ° 14.8 ' W, Malaise trap, 10 - 17. v. 2007, D. R. Smith (1 ♀, USNM), WA: Mt. Constitution, 22. vii. 1909 (1 ♀, USNM), Chehalis, 25. viii. 1911, A. L. Melander (1 ♀, USNM).	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
FBBAD1A36590567349002B003848FE4D.taxon	description	Figs 771 - 777	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
FBBAD1A36590567349002B003848FE4D.taxon	description	Description. Wing length 3.2 mm (♂), 3.4 mm (♀). Length of ultimate section of vein M 4 divided by penultimate section 8.5 - 13.9. Eye height divided by gena height: 3.3 - 3.7. Cheek narrow but distinct. First flagellomere rounded, slightly longer than high, narrowing apically. Ocellar triangle barely larger than tubercle. Chaetotaxy: Anterior ori thinner, slightly less or more than 1 / 2 length of posterior ori; posterior ors slightly shorter and thinner than anterior ors. Four to five rows of scattered acrostichal setulae. Four dorsocentrals, barely decreasing in size anteriorly. Presutural supra-alar small. Colouration: Head light yellow with antenna, back of head, ocellar tubercle, posterolateral corner of frons, gena, occiput and palpus dark brown; face faintly to more distinctly brown; clypeus brown; brownish grey stripe extending along fronto-orbital plate from posterior margin of frons to level of posterior ors; fronto-orbital plate with faint, fine greyish white pruinosity. Thorax dark brown with thick grey pruinosity that is lighter on pleuron and slightly evident on remainder of body. Halter white. Calypter entirely yellowish white. Legs dark brown with apices of femora narrowly yellow. Abdomen dark brown with lateral margin of tergites fading to yellow. Genitalia: (Figs 771 - 777) Apex of surstylus, which is entirely fused to epandrium, well-defined, but posteriorly with thin, ill-defined carina extending along margin of epandrium to pointed, inwardly directed process ventral to apex of cercus; setae apically on surstylus and along ridge following thin process. Cercus narrow, curved, slightly compressed laterally. Hypandrium large with stout basal arms and two setae on strong, transverse inner lobe; with rounded apical apodeme. Postgonite large and well-sclerotised with three sockets on upcurved apex; one seta basal to shallow, dark inner lobe; basal section dark and divided longitudinally into two bands. Phallophorus large and well-developed with dorsoapical plate partially interlocking and fused with base of right sclerite of basiphallus; flanked by one pair of long, narrow, apically pointed rods. Halves of basiphallus separate, slightly wider on distal 2 / 5 with dark, shallow ventrobasal process; left sclerite shorter with ventrobasal process wrapped along side of shaft. Hypophallus U-shaped, strongly curved in lateral view; basal margin thick, straight, and with dorsal sub-basal fossa; subapically with short, clear tubule. Paraphallus dark, rod-like, with slight medial constriction; apex weakly fused to mesophallus. Mesophallus with subspherical, dark apical chamber on distal 2 / 5 that is ventrally composed of two rounded plates; basal section of mesophallus (not interpreted as ejaculatory duct due to positioning past basiphallus) narrower, subcylindrical, with base slightly narrower and only sclerotised ventrally. Distiphallus divided into one pair of long sinuate arms that are strongly arched medially and dorsally angled apically. Ejaculatory apodeme large with short, narrow stem and base, and with large, broad blade; sperm pump with transverse sclerite that produces dark lateral processes and is fused to base of ejaculatory apodeme; base of duct sclerotised, continuous with sclerite on sperm pump.	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
FBBAD1A36590567349002B003848FE4D.taxon	distribution	Distribution. Canada: ON, QC. USA: IN, MA, MI, MN, MO, NY, TX *, WI.	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
FBBAD1A36590567349002B003848FE4D.taxon	materials_examined	Additional material examined. Canada. ON: Fenelon Falls, 27. v. 1928, F. P. Ide, CNC 480098 (1 ♂, CNC), Go Home Bay, 8 mi W of Bala, 28. v. 1959, J. G. Chillcott, CNC 480099 (1 ♂, CNC). USA. IN: Lafayette, bred from leaf miners on Ranunculus abortivus, 9. vi. 1912 (1? [body mostly destroyed], USNM), MO: reared from leaf-miner on Ranunculus abortivus, 14. vi. 1913 (1 ♂, USNM), Kirkwood (1 ♀ [with puparium], USNM), TX: Bexar Co., Ebony Hill, Res. Stn., ex. larva, R. O. and C. A. Kendall, 27. iv. 1977 (1 ♂ 1 ♀ [with puparia], USNM), 28. iv. 1977 (1 ♀ [with puparium], USNM).	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
B0D37581A23775E91516D7C6FE44FA86.taxon	description	Figs 778 - 780	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
B0D37581A23775E91516D7C6FE44FA86.taxon	description	Description. As described for P. ilicicola except as follows: Wing length 1.7 - 2.0 mm (♂), 1.9 - 2.0 mm (♀). Wing sometimes with additional transverse veins in first and second radial cells apically. Eye height divided by gena height: 3.6 - 5.0. Chaetotaxy: Posterior ori shorter than ors, anterior ori minute. Four to six rows of scattered acrostichal setulae. Colouration: Lunule sometimes paler than frons. Face yellowish medially, brown to dark grey laterally. Gena sometimes distinctly whiter than frons. Posterolateral margin of frons dark, with spot encompassing base of vertical setae, sometimes with dark stripe extending along fronto-orbital plate to level of anterior ors. Gena and occiput sometimes dark along posterior and posteroventral margins of eye. Legs evenly brown. Genitalia: (Figs 778 - 780) Surstylus relatively short, straight and broadly rounded. Epandrial process (bump above anus) short and rounded. Sclerite of hypophallus 1 / 2 - length of mesophallus, apex broadly rounded, base narrow and upcurved (i. e., comma-shaped); broader apical section sometimes subquadrate. Length of mesophallus 4 x width at midpoint. Arms of distiphallus separate and approximately as long as mesophallus.	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
B0D37581A23775E91516D7C6FE44FA86.taxon	distribution	Distribution. USA: DC, MD, ME, MI, NC, PA.	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
B0D37581A23775E91516D7C6FE44FA86.taxon	materials_examined	Additional material examined. See Lonsdale and Scheffer (2011).	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
6107B86ECBE3A2E6CB0AF019EE3E2170.taxon	description	Figs 781 - 783	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
6107B86ECBE3A2E6CB0AF019EE3E2170.taxon	description	Description. As described for P. ilicicola except as follows: Wing length 2.2 - 2.4 mm (♂), 2.4 - 2.6 mm (♀). Eye height divided by gena height: 3.4 - 4.4. Chaetotaxy: Sometimes very small additional ori present in front of anterior ori, which is 1 / 2 length of posterior ori. Five scattered rows of acrostichal setulae. Colouration: Body darker brown; gena greyish to dirty white; dark posterolateral spot on frons surrounding vertical setae sometimes with extension along margin of eye to surround base of ors and (less frequently) base of posterior ori; eye with dark margin along gena and postgena. Legs dark with base of tibiae and apices of femora narrowly to indistinctly yellow; tarsi dirty white, becoming browner apically. Genitalia: (Figs 781 - 783) Surstylus short and rounded. Epandrial process short and broad. Sclerite of hypophallus slightly longer than mesophallus, narrow and strongly arched; base fused to apex of basiphallus. Length of mesophallus ~ 2.5 x width, shorter than distiphallus and slightly constricted at midpoint. Arms of distiphallus connected at base.	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
6107B86ECBE3A2E6CB0AF019EE3E2170.taxon	distribution	Distribution. USA: AL, CT, DC, FL, GE, MA, MD, MS, NC, NJ, NY, OH, SC.	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
6107B86ECBE3A2E6CB0AF019EE3E2170.taxon	materials_examined	Additional material examined. USA. FL: Highlands Co., Venus-Archibold Biological Station, 30. iii. 2013, C. S. Eiseman, ex Ilex glabra, em. 8 - 28. iv. 2013, # CSE 255, CNC 384726, CNC 384727 (1 ♂, 1 ♀, CNC). Also see Lonsdale and Scheffer (2011).	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
BF59E51F8B638E0D3BC142C4EAF05D0C.taxon	description	Figs 784 - 786	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
BF59E51F8B638E0D3BC142C4EAF05D0C.taxon	description	Description. Wing length: 1.7 - 2.1 mm (♂), 1.9 - 2.1 mm (♀). Vein dm-m absent. Eye height divided by gena height: 3.5 - 6.5. Vein dm-m absent; veins R 2 + 3 and R 4 + 5 crowded relatively close to anterior margin of wing. Ocellar tubercle wider than long (often subrectangular), with space between posterior ocelli wider than 3 x width of ocellus; ocellar triangle indistinct, barely larger than tubercle. Fronto-orbital plate narrow with inner margin smooth and slightly convex. Cheek narrow, but distinct. Chaetotaxy: Two ori, anterior 1 / 2 length of posterior; two ors. Ocellar and postocellar setae at least as long as fronto-orbitals, but thinner. Four to six scattered rows of acrostichal setulae. Four dorsocentral setae, one presutural, decreasing in length anteriorly. Colouration: Body covered with greyish pruinosity that is denser on thorax, especially dorsally; pruinosity coppery postsuturally, bluish presuturally and on anterodorsal corner of anepisternum (colour differences often difficult to see in poorly preserved material). Head mostly grey with brown to yellowish tint; back of head, clypeus, palpus, ocellar triangle and scape dark brown; pedicel and first flagellomere dark brown to black; lunule sometimes paler than frons; frons with thin reflective pruinosity appearing white to dark grey depending on individual and angle of view; posterolateral corner of frons dark to base of inner vertical seta, often with narrow band extending to base of posterior ors; fronto-orbital plate sometimes with spot posterior to base of anterior ors and posterior ori, or with most of plate dark grey excluding anterior and anterolateral margins; face yellowish medially, whitish to dark grey or brownish laterally and on parafacial; gena usually very pale, strongly contrasting remainder of head, sometimes with yellowish tint, less commonly greyish. Thorax dark brown with pruinosity as mentioned above. Halter white. Calypter white with margin and hairs grey to brownish. Legs brown with yellowish tint, with femora darker and fore and mid tibiae and tarsi paler, at least medially; if predominantly pale, then apex of fore femur and faint supra-alar spot on scutum also pale. Abdomen dark brown. Genitalia: (Figs 784 - 786) Surstylus short, rounded and relatively narrow; fused to epandrium but with suture evident along anterior margin. Epandrium broadly rounded and setose and with small dorsomedial protuberance (" epandrial process ") above anus. Cercus small, setose, and narrow. Subepandrial sclerite divided medially, each side with dark dorsal arm that is contiguous ventrally with flatter, pointed ventral process. Hypophallus membranous and sac-like with one pair of floating lateral sclerites that are subrectangular, curved and ~ 4 x longer than wide with margin irregular. Mesophallus nearly 6 x longer than wide at midpoint and slightly longer than distiphallus. Paraphallus with dark basal section and very flat, pale, nearly indistinct distal plate approaching mediobasal surface of mesophallus. Arms of distiphallus separate, not strongly diverging at base and curved dorsally. Ejaculatory apodeme with base bulging, stem very short, and blade well-developed with marked gradation in pigment distally; sperm pump with transverse sclerite with ends thick, dark, and produced.	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
BF59E51F8B638E0D3BC142C4EAF05D0C.taxon	distribution	Distribution. Canada: ON. USA: DC, DE, FL, GA, KY, MA, MD, NC, NY, OH, PA, SC; leaf mines only: CT, TN, VA.	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
BF59E51F8B638E0D3BC142C4EAF05D0C.taxon	materials_examined	Additional material examined. USA. USA. NC: Scotland Co., Laurinburg, St. Andrews University, 25. ii- 4. iii. 2016, T. S. Feldman, Ilex opaca, em. 18 - 25. iii. 2016, # CSE 2387, CNC 653938 - 653941 (1 ♂ 3 ♀, CNC), VA: Falls Church, 5. v. 1969, [illegible], mines Ilex opaca em. 5 - 11. v. 1969, CNC 480100 (1 ♂ 1 ♀, CNC). Also see Lonsdale and Scheffer (2011).	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
4556A5B4B53E86CF01584B56D1168352.taxon	description	Figs 802 - 804	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
4556A5B4B53E86CF01584B56D1168352.taxon	description	Description. Wing length 2.2 - 2.6 mm (♂), 2.1 - 2.6 mm (♀). Vein dm-m absent. Eye height divided by gena height: 2.3 - 2.9. First flagellomere large with distal margin rounded; shape variable; larger in female, sometimes circular but usually slightly clavate with anterodorsal region swollen; smaller in male, sometimes with dorsal and ventral margins nearly parallel; hairs very conspicuously elongate, length at least 3 x width of base of arista, becoming longer anterodorsally. Fronto-orbital plate shallowly produced dorsally, smaller than narrow " cheek ". Chaetotaxy: Two ori with anterior seta either absent or very thin and not more than 1 / 2 length posterior ori; two ors. Single row of orbital setulae straight to irregular. Ocellar and postocellar setae at least as long as fronto-orbitals. Eye with very sparse short hairs. Two strong rows of acrostichal setulae to midpoint of scutum. Intra-alar setulae relatively few, at least with one well-developed setula in front and behind suture. Four dorsocentrals, decreasing in length anteriorly. Small additional medial presutural supra-alar present. Colouration: Head light yellow with ocellar tubercle and posterolateral margin of frons dark brown to region between vertical setae or to base or inner vertical; pedicel, first flagellomere, palpus and back of head dark brown; clypeus brown. Thorax dark brown with dense greyish pruinosity that is thicker dorsally and also faintly seen elsewhere on body. Halter white. Calypter margin and hairs brown. Legs dark brown with base of tibiae narrowly yellow and apex of femora yellow for length equal to width of femur at spot. Abdomen brown with posterior margin of tergites 2 - 6 sometimes yellow. Genitalia: (Figs 802 - 804) Hypandrium very short and stout; inner lobe with several anterior setae and broad membranous extension that is broadly fused to postgonite. Phallophorus small, shallow; lateral paired sclerites short, dark, slightly pointed apically. Postgonite broad, flat and with several outer setae; apex rounded with dorsal subapical point. Halves of basiphallus crossing at base; left sclerite with ventrobasal process wrapping around shaft, right sclerite with broad laterobasal lobe-like extension. Paraphallus absent. Hypophallus narrow and U-shaped with arms darker and parallel, and distal arch broadly and more weakly sclerotised. Mesophallus not evident. Distiphallus dark, tubular, narrow, and angled ventrally but slightly upcurved, nearly as long as hypophallus. Ejaculatory apodeme small, finger-like; sperm pump small.	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
4556A5B4B53E86CF01584B56D1168352.taxon	distribution	Distribution. Canada: AB, NL *, ON, PE *, SK *. USA: CA, MD, MI, NC, NY, PA, WV *.	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
4556A5B4B53E86CF01584B56D1168352.taxon	materials_examined	Material examined. Canada. NL: Pistolet Bay, 10. viii. 1982, G. Cuff, Lot 83 - 69, 64, CNC 480102 (1 ♂, CNC), ON: Ottawa, 695 Malibu Tr., 45 ° 22 ' N, 75 ° 43 ' W, leaf mine Sonchus oleraceus, 3. vii. 2015, O. Lonsdale, em. 7. vii. 2015, CNC 454633 - 454635 (1 ♂ 2 ♀, CNC), Ottawa, 2. vii. 2015, O. Lonsdale, leaf mine unknown host, em. 7. vii. 2015, CNC 454639 (1 ♂, CNC), Ottawa, 4. ix. 1956, G. G. Lewis, serpentine leaf mine in Lactuca canadensis, CNC 480104 - 480106 (1 ♀, 1 ♂ 1 ♀ [same pin], 2 empty puparia [gel capsule], CNC), PE: O'Leary, v. 1975, L. S. Thompson, 75 - 332, CNC 480101 (1 ♀, CNC), SK: Regina, 4. x. 1973, M. G. Maw, hand collected, ex Sonchus oleraceus 73 - 216 - Sask, So-R- 10, CNC 480103 (1 ♂, CNC). USA. MD: Bethseda, 28. vi. 1980, G. C. Steyskal, ex. Lactuca sp. (3 ♂ 2 ♀ [with puparia], USNM), MI: Battle Creek, 25. iv. 1936, C. W. Sabrosky (1 ♂, USNM), WV: Parkersburg, 21. vi. 1970, G. Steyskal (1 ♂, USNM).	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
6FC13DC7A36B13443DE811C229D43788.taxon	description	Figs 787 - 789	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
6FC13DC7A36B13443DE811C229D43788.taxon	description	Description. As described for P. ilicicola except as follows: Wing length 1.4 - 2.1 mm (♂), 1.4 - 1.8 mm (♀). Eye height divided by gena height: 3.5 - 5.2. Chaetotaxy: Anterior ori 1 / 2 length of posterior ori. Colouration: Gena usually very pale, strongly contrasting remainder of head, sometimes with yellowish tint. Pedicel relatively pale, never as dark as first flagellomere. Face yellowish centrally, with side and parafacial whitish, never dark grey. Fronto-orbital plate sometimes with dark stripe extending from lateral margin to base of one or both ors. Legs more uniformly brown with tibiae and tarsi variably whitish, at least in part on fore and mid legs; apex of femora sometimes narrowly yellowish. Genitalia: (Figs 787 - 789) Surstylus short, broader apically. Epandrial process rounded with slight ventral curve. Sclerite of hypophallus directed posteriorly (not ventrally), subrectangular in general outline, with length 2 x width, and with irregular margins; posterior margin sometimes strongly convex. Mesophallus bulging on distal 1 / 2 and with length ~ 3 x width at midpoint. Paraphallus broad. Arms of distiphallus separate and bases not strongly diverging.	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
6FC13DC7A36B13443DE811C229D43788.taxon	distribution	Distribution. USA: AL, FL, MD, NC, SC.	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
6FC13DC7A36B13443DE811C229D43788.taxon	materials_examined	Additional material examined. See Lonsdale and Scheffer (2011).	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
9AF5BA84E17DEA1F93F141BCE0785FB8.taxon	description	Figs 790 - 792	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
9AF5BA84E17DEA1F93F141BCE0785FB8.taxon	description	Description. As described for P. ilicicola except as follows: Wing length 1.8 mm (♂). Female unknown. Eye height divided by gena height: 4.0 - 4.8. Chaetotaxy: Anterior ori very small; posterior ors duplicated on left side in one male. Six to seven scattered rows of acrostichal setulae. Colouration: Scutum sometimes with postpronotum slightly paler / reddish and with posterior margin of notopleuron yellowish. Face brown with lateral margin and parafacial dark grey. Posterolateral corner of frons dark with narrow yellowish line between base of vertical setae. Posterolateral margin of frons with narrow dark line. Legs brown. Genitalia: (Figs 790 - 792) Surstylus short and tapering. Epandrial process narrow with distinct ventral curve. Sclerite of hypophallus narrow, length 5 x width. Length of mesophallus slightly> 5 x width at midpoint. Paraphallus relatively narrow and weakly defined. Arms of distiphallus separate, slightly longer than mesophallus and subparallel on basal 1 / 2.	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
9AF5BA84E17DEA1F93F141BCE0785FB8.taxon	distribution	Distribution. USA: MD, MI, PA, VA.	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
9AF5BA84E17DEA1F93F141BCE0785FB8.taxon	materials_examined	Additional material examined. See Lonsdale and Scheffer (2011).	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
FAC6FD148ABFB7DE85DB98CE3A19AE95.taxon	description	Figs 805 - 807	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
FAC6FD148ABFB7DE85DB98CE3A19AE95.taxon	description	Description. Wing length 1.6 - 1.9 mm (♂), 2.0 - 2.1 mm (♀). Vein dm-m absent. Eye height divided by gena height: 2.7 - 5.0. Fronto-orbital plate and scutum very shiny, strongly contrasting remainder of frons; fronto-orbital plate relatively broad medially, 1 / 4 to ~ 1 / 3 width of frons. Ocellar triangle rounded, slightly larger than tubercle. Chaetotaxy: One ori (sometimes with additional minute ori anteriorly); one ors (sometimes two on one side). Ocellar and postocellar setae subequal to fronto-orbitals, ocellar slightly thinner and shorter. Four dorsocentrals, one presutural, decreasing in size anteriorly. Four to six irregular rows of acrostichal setulae. Colouration: Body dark brown with halter and labellum yellow; usually with tarsi (distal two tarsomeres becoming darker apically), narrow apices of femora, and base and apex of fore tibia variably light brown to yellowish; sometimes mid and hind tarsi similarly yellowish, and / or most of fore tibia, distal 1 / 3 of mid tibia and apex of hind tibia also paler. Calypter margin and hairs brown. Genitalia: (Figs 805 - 807) Hypandrium very short and broad with haired membrane arising from inner lobe. Postgonite broadened medially and distally with apical margin scalloped; with one seta. Halves of basiphallus relatively long, flat and parallel with bases overlapping. Hypophallus with one pair of lateral rod-like sclerites sometimes partially connected apically by marginal sclerotisations along membrane. Paraphalli elongate, fused and dark with apex long, curved, pointed and often curved to right. Distiphallus short, Y-shaped, directed basally and with large membranous fringe.	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
FAC6FD148ABFB7DE85DB98CE3A19AE95.taxon	distribution	Distribution. Canada: ON, QC. USA: CA, DC, GA, ID, IN, LA, MA, MD *, MI, VA *, WA.	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
FAC6FD148ABFB7DE85DB98CE3A19AE95.taxon	materials_examined	Additional material examined. Canada. ON: Toronto, " 2 - 5 - 96 ", J. M. Aldrich (1 ♂ 1 ♀, USNM), Bell's Cor., wild Clematis, 4. vi. 1952, J. F. McAlpine, sweeping, CNC 480109 - 480119 (2 ♂, 9 ♀, CNC), Renfrew Co., Jacks Lakes, 45 ° 41 ' 16.14 " N, 77 ° 30 ' 4.77 " W, 7. vii. 2018, C. S. Eiseman, Clematis virginiana, em. 22. vii. 2018, # CSE 4822, CNC 1643631 (1 ♂, CNC), QC: Perkin's Mills, caught on Clem [atis]. vert [icillaris]., 18. vii. 1967, [K. A. Spencer], CNC 480107 (1 ♂, CNC). USA. DC: 26. viii. 1904 (1 ♂, USNM), on young terminals of Clematis (1 ♀, USNM), GA: Rabun Co., Pine Mountain, 426 m, 4. v. 1957, J. R. Vockeroth, CNC 480108 (1 ♂, CNC), ID: Moscow, J. M. Aldrich (1 ♀, USNM), IN: Lafayette, 16. v. 1917, J. M. Aldrich (1 ♀, USNM), MA: Franklin Co., Northfield, 276 Old Wendell Rd., 29. vi- 2. vii. 2016, Clematis virginiana em. 18. vii- 2. viii. 2016, C. S. Eiseman (23 ♂ 26 ♀), Franklin Co., Northfield, 42 ° 38 ' 45.47 " N, 72 ° 25 ' 39.65 " W, adult on Clematis virginiana, 29. vi. 2016, C. S. Eiseman, # CSE 2646, CNC 654108 (1 ♂, CNC), MD: Montgomery Co., Clarksburg, Little Bennett Reg. Park, 21. ix. 1990, W. E. Steiner, M. J. and R. Molineaux (5 ♂, USNM), MI: Ingham Co., Meridian, Harris Nature Center, 42 ° 41 ' 50.45 " N, 84 ° 22 ' 38.90 " W, 28. vi. 2018, C. S. Eiseman, Anemone virgiana, em. 12. vii. 2018, # CSE 4745, CNC 1643653 (1 ♀, CNC), VA: Fairfax Co., Dyke Marsh, 18. v. 1977, W. N. Mathis (1 ♀, USNM).	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
27F2945295F3DA592D2FBE59DABEBCEC.taxon	description	Description. As described for P. ilicicola except as follows (from Lonsdale and Scheffer 2011): Wing length 1.9 mm (♂), 2.2 mm (♀). Eye height divided by gena height: 3.1 - 3.6. Thorax slightly less pruinose and without bluish tint. Chaetotaxy: Anterior ori 1 / 2 length of posterior ori or absent. Acrostichal setulae in five to six scattered rows. Colouration: Unlike most (but not all) P. ilicicola, gena never bright white and face and posterior margin of postgena never white, and legs more uniformly pale. Head with brownish to grey tint, without strong colour contrast on gena; face yellowish centrally, and side of face and parafacial dark grey or brownish; gena and occiput dark along posterior and posterolateral margins of eye. Posterolateral corner of frons dark, with spot encompassing base of vertical bristles and often with thin band extending to base of posterior ors; orbital plate variable in coloration, sometimes with light spot posterior to base of anterior ors and posterior ori, or with most of plate dark grey, excluding anterior and anterolateral margins. Legs brown with tibiae and tarsi paler; fore femur sometimes becoming gradually paler to apex. Genitalia: (Lonsdale and Scheffer 2011: figs 59, 60) Lateral sclerite of hypophallus usually shorter and less strongly arched, mesophallus thinner before midpoint, and arms of distiphallus more strongly diverging.	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
27F2945295F3DA592D2FBE59DABEBCEC.taxon	distribution	Distribution. Canada: NL. USA: FL, NC, NY, WV, WI.	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
3521C9AF011985D1ED3E99331F677F1F.taxon	description	Figs 133, 808 - 810	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
3521C9AF011985D1ED3E99331F677F1F.taxon	description	Description (Fig. 133). Wing length 2.2 - 2.5 mm (♂), 2.7 - 2.8 mm (♀). Vein dm-m absent. Eye height divided by gena height: 2.1 - 2.2. Buccal cavity relatively broad with epistoma produced. Ring around eye prominent. Palpus short and broadly ovate. Chaetotaxy: Two ori; two ors. Acrostichal setulae absent. Four dorsocentrals, decreasing in length anteriorly. Colouration: Head dark yellow with posterolateral margin of frons lateral to base of inner vertical, large round spot around tubercle and back of head above foramen (excluding margin) brown; palpus, clypeus and first flagellomere black. Notum dark brown with grey pruinosity, and postpronotum, notopleuron and supra-alar spot yellow. Pleuron dark yellow with brown / grey mottling (paler posterodorsally on katepisternum and medially on anepisternum). Halter white. Calypter dusky with hairs brown to golden. Coxae and femora yellow with light dorsal mottling on fore femur (sometimes restricted to base) and with brownish dorsal spot near base of mid femur and near apices of mid and hind femora; tibiae brownish; tarsi brown. Abdomen brown with male sternite 8 and posterior margin of tergites 5 and 6 yellow. Genitalia: (Figs 808 - 810) Hypandrium subtriangular with apex rounded, and with long, separate basomedial plate; inner lobe transverse, arched and with several anterior setae. Postgonite long and flat with apex broad and emarginate apically. Halves of basiphallus narrow, diverging apically. Hypophallus broad and U-shaped, above one pair of converging narrow bars that nearly meet to form a triangle. Paraphalli small, weakly sclerotised, converging apically, but not meeting. Mesophallus length 2 x width, narrowing apically, rounded basally; duct adjoining mesophallus pigmented. Distiphallus divided into one pair of very narrow, slender, ventrally pointing rods slightly shorter than mesophallus. Ejaculatory apodeme short and finger-like with swollen base.	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
3521C9AF011985D1ED3E99331F677F1F.taxon	distribution	Distribution. USA: DC, IA, IL *, IN, KS, MD *, MI, PA, TN *, VA *.	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
3521C9AF011985D1ED3E99331F677F1F.taxon	materials_examined	Material examined. USA. IL: Chicago, Thatcher Road, 29. v. 1949, A. L. Melander (1 ♀, USNM), MD: Cabin John Bridge, 28. iv. 1912, Malloch (1 ♂, USNM), nr. Plummers Id., 25. iv. 1915, R. C. Shannon (2 ♀, USNM), Montgomery Co., Plummers Island, 38 ° 58 ' N, 77 ° 10 ' W, Malaise trap, 24. iv- 7. v. 2006, D. R. Smith and J. W. Brown (1 ♀, USNM), 25. iv. 1987 (1 ♂ 1 ♀, USNM), 4 mi SW of Ashton, G. F. and J. F. Hevel, 29. iv. 1984 (2 ♀, USNM), TN: Cocke Co., Ramsey's Cascade, 8.5 mi E Gatlinburg, Great Smokey Mountain National Park, 35 ° 42.2 ' N, 83 ° 21.5 ' W, 1900 ', 28. v. 1999, S. D. Gaimari (1 ♀, USNM), VA: Chain Bridge, 20. iv. 1924, J. R. Malloch (1 ♂, USNM).	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
B45F72A0B6995C8645BC0EC482D97076.taxon	description	Figs 793 - 795	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
B45F72A0B6995C8645BC0EC482D97076.taxon	description	Description. As described for P. ilicicola except as follows: Wing length 1.5 - 1.9 mm (♂), 1.8 - 2.0 mm (♀). Eye height divided by gena height: 4.2 - 5.2. Colouration: Fronto-orbital plate pale, usually with narrow dark line extending to base of posterior fronto-orbital, but rarely reaching base of posterior ori. Genitalia: (Figs 793 - 795) Surstylus broadly rounded. Epandrial process broad with slight ventral curve. Sclerite of hypophallus semi-circular with anterior margin slightly concave. Paraphalli tapered along outer-distal margin and slightly bowed, not parallel. Mesophallus nearly 7 x longer than wide. Arms of distiphallus slightly shorter than mesophallus, separate and not strongly diverging.	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
B45F72A0B6995C8645BC0EC482D97076.taxon	distribution	Distribution. USA: DC, DE, FL, MD, NC, NJ (leaf mines only), NY, SC.	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
B45F72A0B6995C8645BC0EC482D97076.taxon	materials_examined	Additional material examined. See Lonsdale and Scheffer (2011).	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
4169570D72323C6527C4E7F2FA7705C9.taxon	description	Figs 757 - 759	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
4169570D72323C6527C4E7F2FA7705C9.taxon	description	Description. Wing length 2.1 - 2.4 mm (♂), 2.5 - 2.6 mm (♀). Vein dm-m absent. Eye height divided by gena height: 2.6 - 3.3. Relatively stout-bodied. Fronto-orbital plate subshiny. First flagellomere narrow, not much higher than pedicel. Cheek narrow. Chaetotaxy: One or two ori (anterior seta no more than 1 / 2 length); one or two ors (posterior seta less than 2 / 3 length). Orbital setulae sparse. Four dorsocentrals, one presutural, decreasing in height anteriorly. Four irregular rows of acrostichal setulae. Colouration: Head light brown with antenna, ocellar tubercle, back of head, posterior margin of frons and posterolateral corner of frons around vertical setae dark brown; fronto-orbital plate with irregular dark brown pigment medially and posteriorly. Remainder of body mostly dark brown with light brownish pruinosity; fore knee yellowish, halter white and notopleuron and postpronotum slightly paler. Calypter margin and hairs brown. Genitalia: (Figs 757 - 759) Hypandrium short, broadly rounded, basal arm gracile, with thinner narrow apical process, haired inner membrane, and small setose inner lobe. Basiphallus long and narrow with bases overlapping and partially fused; base of left sclerite with ventral arm. Hypophallus membranous with narrow rod-like lateral sclerites that terminate in a small, apically sclerotised and serrated plate that is ill-defined basally. Paraphallus band-like, extending from apex of basiphallus to ventromedial surface of mesophallus; mostly clear with irregular pigmentation. Mesophallus indistinguishable from distiphallus, clear and bulbous with ventromedial sclerotised patch. Distiphallus membranous, split into two relatively thick tubules that widen on distal 1 / 2; subapically with ill-defined pigmented band. Ejaculatory apodeme small and narrow with blade only slightly expanded; sperm pump with faint sclerotised patch.	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
4169570D72323C6527C4E7F2FA7705C9.taxon	distribution	Distribution. Canada: ON. USA: VA, WI.	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
4169570D72323C6527C4E7F2FA7705C9.taxon	materials_examined	Additional material examined. USA. VA: Chain Bridge, 23. iv. 1922, J. R. Malloch (2 ♂, USNM), Rosslyn, 17. xi. 1923, larvae and pupae, ex. Osmorhiza longistylis, iss. in laboratory xii. 1922 - i. 1923 (1 ♂ 4 ♀, USNM), M. T. VanHorn (1 ♀, USNM), Plummers Isl., R. C. Shannon, 23. iv. 1914 (1 ♂, USNM), 8. iv. 1914 (1 ♀, USNM), Fairfax Co., Dead Run, R. C. Shannon, 26. iii. 1925 (1 ♂, USNM), 18. iv. 1916 (1 ♂, USNM), 24. iii. 1925 (1 ♂, USNM).	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
7F9812348374E80A5608B60ABE55A4A8.taxon	description	Figs 811 - 813	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
7F9812348374E80A5608B60ABE55A4A8.taxon	description	Description. Wing length 1.7 - 2.0 mm (♂), 1.8 - 2.2 (♀). Vein dm-m absent. Eye height divided by gena height: 3.5 - 5.9. First flagellomere rounded, narrow, slightly shorter than high, not much higher than pedicel. Posterior ocelli separated by at least 3 x their width. Ocellar triangle indistinct. Cheek narrow. Chaetotaxy: One or two ori (anterior seta usually 1 / 2 - length or smaller if present, but uncommonly up to 3 / 4 length); two ors. Ocellar and postocellar setae at least as long as fronto-orbitals. Four dorsocentrals, one presutural, decreasing in height anteriorly; only posterior seta large, with second from rear not more than 3 / 5 length. Three or four scattered rows of acrostichal setulae ending at level of posterior dorsocentral. Colouration: Setae brown to dark brown with pale shine (not black). Head light brown to greyish with antenna (sometimes only first flagellomere), fronto-orbital plate, palpus, clypeus and ventral margin of gena dark brown; gena and postgena (at least below cheek) sometimes slightly yellowish; dark brown spot on ocellar tubercle sometimes not much darker than surrounding frons, but sometimes clearly darker and sometimes much enlarged with posterior margin extending to base of vertical setae; posterolateral corner of frons sometimes noticeably darker to base of outer or inner vertical. Thorax with faint greyish pruinosity that is denser dorsally and also less clearly present on remainder of body; pruinosity sometimes appearing coppery postsuturally. Halter white. Calypter margin and hairs brown. Legs mostly dark brown, apices of femora sometimes narrowly to more widely yellowish, tibiae sometimes slightly paler, at least apically on fore leg, and tarsi yellowish with apical segments darker. Abdomen brown. Genitalia: (Figs 811 - 813) Inner lobe of hypandrium narrow and closely surrounding postgonite. Halves of basiphallus overlapping at base, but otherwise flat, parallel. Sclerites of hypophallus band-like, mostly parallel with apices slightly incurved. Paraphallus small, dark, band-like, directed dorsally to fuse to ventromedial margin of mesophallus. Mesophallus dark, subcylindrical and with slight medial constriction. Distiphallus entirely split, forming one pair of narrow and very elongate, looped arms; very dark, but apex paler with small, clear apical cup. Ejaculatory apodeme with dark, narrow stalk and broad fan-shaped blade.	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
7F9812348374E80A5608B60ABE55A4A8.taxon	distribution	Distribution. Canada: ON, NS *. USA: CT, MA, NY, OH, VA.	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
7F9812348374E80A5608B60ABE55A4A8.taxon	materials_examined	Additional material examined. Canada. NS: CBHNt. Pk., Mackenzie Mtn., 400 m, birch and fir, 29. v. 1984, B. E. Cooper, PG 639848, CNC 480132 (1 ♂, CNC), 7. vi. 1984, CNC 480134 (1 ♂, CNC), CBHNt. Pk., North Mt., 400 m, 9. vi. 1984, B. E. Cooper, PG 767865, CNC 480133 (1 ♂, CNC). USA. CT: New haven, " 1717 ", W. E. Britton, larva coll., 6. viii. 1917, in peach leaf, emerged 1. vii. 1918 (1?, USNM), MA: Hampshire Co., Southampton, 37 Middle Rd., 18. x. 2013, C. S. Eiseman, ex. Prunus persica em. 21. iii. 2014, # CSE 1015, CNC 384791 (1 ♂, CNC), OH: Erie Co., 15. viii. 1952, peach leaves, A. C. Dowdy (1 ♀, USNM), Wayne Co., 1944, Weaver, peach leaf miner, " 6 - 5 ", " 6 - 16 " (1 ♂ 1 ♀, USNM), VA: Winchester, 29. vii. 1915, bred from peach foliage, quaintance No. 1481, E. B. Blakeslee (2 ♂ 1 ♀, USNM).	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
3987A8306A4522BCC0DB28815863A035.taxon	description	Figs 814 - 818	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
3987A8306A4522BCC0DB28815863A035.taxon	description	Description. Wing length 1.6 - 1.8 mm (♂), 1.9 - 2.3 mm (♀). Vein dm-m absent. Eye height divided by gena height: 1.5 - 2.9. Parafacial relatively pronounced when seen laterally; fronto-orbital plate slightly evident laterally, more so anteriorly; cheek evident, nearly 1 / 2 height of gena, continuing as ring around eye. First flagellomere well-developed, slightly longer than high with dorsal and ventral margins usually subparallel and anterodorsal margin more produced. Chaetotaxy: One ori; two ors. Acrostichal setulae absent or several setulae present in two rows anteriorly. Four dorsocentrals, decreasing in length anteriorly. Posterior notopleural seta and additional medial presutural supra-alar absent. Colouration: Head mostly whitish yellow with frons between fronto-orbital plates yellower; small brown spot surrounding ocellar tubercle; first flagellomere black, pedicel and sometimes scape brownish towards base; posterolateral corner of frons brown to base of inner vertical seta, but not extending far laterally along margin of eye, leaving most of border around eye yellow; back of head dark brown, often with ventral margin yellowish and one pair of yellow spots dorsally lateral to tubercle; clypeus light brown to yellowish or brown; palpus dark yellow to light brown. Thorax dark brown with dense grey pruinosity, pruinosity more faintly present on rest of body, but only evident on pigmented regions. Halter white. Calypter entirely white. Legs brown with fore coxa (excluding base) and apex of femora yellow; sometimes base of tibiae narrowly yellow, usually on fore leg. Abdomen dark brown. Genitalia: (Figs 814 - 818) Hypandrium short, rounded and stout with shallow apical process and narrow inner lobe with one pair of medial setae. Postgonite broad with curved ventral subapical process and one medial seta. Phallophorus flanked by one pair of narrow membranous plates that are only sclerotised at pointed apex. Basiphallus divided into several sclerites, including one pair of long diverging bars, several smaller, irregular, thinner interlocking dorsomedial plates, and several minute medial spinulae. Paraphallus C-shaped, distal 1 / 2 parallel to distiphallus. Long apical section of duct pigmented. Mesophallus indistinct. Distiphallus short, tubular, angled ventrally, length 2 x width. Ejaculatory apodeme very short with base produced to one side.	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
3987A8306A4522BCC0DB28815863A035.taxon	distribution	Distribution. Canada: BC *, ON, QC. USA: Widespread, including HI (Sasakawa 1964). Algeria (Cerny 2018). Bermuda *. Europe, Cyprus, Turkey, Uzbekistan, Russia, Israel, Japan, Kyrgyzstan, Canary Islands, Azores, Egypt, Tunisia, South Africa, Australia, New Zealand, Taiwan, Thailand (Papp and Cerny 2020; Cerny and Merz 2006). Iran (Hazini et al. 2013).	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
3987A8306A4522BCC0DB28815863A035.taxon	materials_examined	Material examined. Australia. NSW: Bowral, 30. i. 1961, [K. A. Spencer], CNC 480142, CNC 480145 (2 ♀, CNC). Bermuda. St. Georges, 28. i. 1936, A. L. Melander (11 ♀, USNM). Canada. BC: Aiken, 12. vi. 1957, J. R. Vockeroth, CNC 480160 (1 ♀, CNC). England. Busk [?], Slough, " 14 / 6 em. 27 / 6 / 39 ", ex. Plantago lanceolata, det. and coll. O. W. Richards (1 ♂, USNM), Berry Head, Brixham, 1. ix. 1960, J. R. Vockeroth, CNC 480173 (1 ♀, CNC), Devon, Newton Abbot, 22. vi. 1960, J. R. Vockeroth, CNC 480172 (1 ♀, CNC), Dor., Lyme Regis, 14. vi. 1958, [K. A. Spencer], CNC 480143 (1 ♀, CNC), Hampstead, 20. vi. 1971, [K. A. Spencer], mine Plantago major em. 25. vi. 1971, CNC 480146 (1 ♂, CNC), S Devon, Hope, 17. ix. 1954, [K. A. Spencer], Plantago major em. 11. x. 1954, CNC 480144 (1 ♀, CNC), Torquay, 17. vi. 1960, J. R. Vockeroth, CNC 480166, CNC 480168, CNC 480169 (1 ♂ 2 ♀, CNC), 25. vi. 1960, CNC 480170 (1 ♀, CNC), 30. vi. 1960, CNC 480167, CNC 480171 (1 ♂ 1 ♀, CNC). Germany. Junsternheida, M. Hering, 30. vi. 1922, Plantago major (1 ♂ 3 ♀, USNM), Berlin, 24. vi. 1932, Hering, Plantago major (1?, USNM). New Zealand. Bay of Plenty: Coromandel, 26. xii. 1974, [K. A. Spencer], CNC 480140, CNC 480141 (2 ♀, CNC), Rotoura, 13. xii. 1974, [K. A. Spencer], mine Plantago, em. 16 - 20. xii. 1974, CNC 480137 - 480139 (3 ♀, CNC), Southland: Bluff, 24. i. 1975, [K. A. Spencer], mine Plantago, em. 1. ii. 1975, CNC 480136 (1 ♀, CNC). Spain. Canary Islands: Tenerife, San Andreas, 14. ii. 1963, [K. A. Spencer], CNC 480135 (1 ♀, CNC), Extremadura: 23.1 km SW Talarrubias, Dense Patch of Flowers in Short Grassland, 38 ° 52 ' N, 5 ° 23 ' W, 430 m, 4. vi. 2008, J. and R. Skevington, CNC 311345, CNC 311349 (2 ♂, CNC), Extremadura: 4 km NW Guadelupe, Along Creek in Oak Forest, 39 ° 28 ' N, 5 ° 22 ' W, 1027 m, 5. vi. 2008, J. and R. Skevington, CNC 287132, CNC 287136, CNC 287139, CNC 287150, CNC 287152, CNC 287154 (3 ♂ 3 ♀, CNC), Extremadura: 5.7 km WSW Navalvillar de Ibor, Wet Meadow in Oak Forest, 39 ° 35 ' N, 5 ° 21 ' W, 1026 m, 5. vi. 2008, J. andR. Skevington, CNC 286150, CNC 286195, CNC 286202, CNC 286247, CNC 286254, CNC 286289, CNC 286299 - 286301, CNC 286303 (5 ♂ 5 ♀, CNC). USA. AR: Hot Springs, 17. v. 1979, K. A. Spencer (3 ♀, USNM), CA: Ukiah, 7. ix. 1941, R. M. Bohart, ex. lawn grass (1 ♀, USNM), DC: Potomac Pk., 18. iv. 1913, R. C. Shannon (1 ♀, USNM), DE: Newark, 22. vi. 1955 (1 ♀, UDCC), IN: Lafayette, 26. vii. 1916, J. M. Aldrich (1 ♀, USNM), Michigan City, 29. vi. 1915 (4 ♀, USNM), GA: Pine Mt., 1 mi N, 12. vii. 1957, W. R. Richards, CNC 480149 (1 ♀, CNC), KS: Lawrence, 23. v. 1934, M. W. Sanderson (2 ♀, USNM), MA: Concord, 27. vii. 1961, marshy pond, W. W. Wirth (1 ♀, USNM), MD: Cabin john, 20. vi. 1916, R. C. Shannon (1 ♂, USNM), Cabin John Bridge, " vi- 6 ", J. M. Aldrich (9 ♀, USNM), Beltsville, 3. vii. 1926, W. L. McAtee (1 ♀, USNM), Glen Echo, J. M. Aldrich [no date] (14 ♀, USNM), 28. v. 1919 (4 ♀, USNM), 29. v. 1919 (25 ♀, USNM), Montgomery Co., Chevy Chase, " Woodend ", 7. vi. 1975, G. F. Hevel (1 ♀, USNM), P. G. Co., Temple Hills 17. vii. 1978, G. F. Hevel (1 ♀, USNM), Baltimore Co., Soldiers Delight, 3 km N Deer Park, 29. x. 1986, W. E. Steiner, J. M. Swearington and J. M. Hill (1 ♀, USNM), MI: Isle Royale, 3 - 7. viii. 1936, C. Sabrosky (1 ♂, USNM), E Lansing, 29. v. 1937, C. Sabrosky (1 ♀, USNM), NC: Franklin, 609 m, 10. vi. 1957, J. R. Vockeroth, CNC 480152 - 480154 (3 ♀, CNC), 8. v. 1957, J. R. Vockeroth, CNC 480155 - 480159 (5 ♀, CNC), Highlands, 14. vii. 1957, W. R. Richards, CNC 480148 (1 ♀, CNC), Highlands, 1158 m, 17. viii. 1957, J. G. Chillcott, CNC 480147 (1 ♂, CNC), Toxaway, 30. viii. 1957, W. R. Richards, CNC 480150, CNC 480151 (2 ♀, CNC), NY: Pocantico Hills, 22. vi. 1935, C. W. Sabrosky (1 ♀, USNM), Oswego Co., Pulaski, Hinman Rd., 30. viii. 1997, sweep net, old field, 30. viii. 1997 (1 ♀, UDCC). UT: Salt Lake, on Plantago lanceolata, P. H. Timberlake, [various dates]. vi. 1914 (8 ♀, USNM), VA: Shenandoah, Big Meadows, 5. vii. 1939, A. L. Melander (1 ♀, USNM), Blacksburg, 640 m, 28. v. 1962, J. G. Chillcott, CNC 480161, CNC 480163, CNC 480164 (3 ♀, CNC), 29. v. 1962, J. G. Chillcott, CNC 480162 (1 ♀, CNC), Giles Co., Mountain Lake, 975 m, 28. v. 1962, J. G. Chillcott, CNC 480165 (1 ♀, CNC), WA: Kamiac Butte, 1. vi. 1912, J. M. Aldrich (1 ♀, USNM). No locality data: Phyt. plantaginis ♂ det. Hendel (1 ♂, USNM).	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
79AC9E304FFF23D3C0722E6E62C734C5.taxon	description	Figs 822 - 824	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
79AC9E304FFF23D3C0722E6E62C734C5.taxon	description	Description. Wing length 3.2 - 3.7 mm (♂), 3.4 - 4.1 mm (♀). Vein dm-m absent. Eye height divided by gena height: 2.4 - 5.1. First flagellomere well-developed, slightly longer than high, apically rounded and with dorsal and ventral margins parallel in part. Ocelli forming equilateral triangle, ocellar triangle indistinct. Epistoma present, not exceptionally large with width 1 / 4 - 1 / 2 length. Parafacial and fronto-orbital plate produced towards anterodorsal margin of eye. Cheek narrow, elongate, not continuing along eye posteriorly. Chaetotaxy: Three or four ori; one ors. Ocellar and postocellar setae longer than fronto-orbitals. Four dorsocentrals, decreasing in length anteriorly. Four rows of acrostichal setulae. Colouration: Head dark brown with first flagellomere darker, centre of frons and gena (excluding ventral margin) paler, but dark ocellar spot usually extending outside tubercle, labellum contrastingly yellow. Thorax dark brown with small paler spot medially on notopleuron and at anterior and posterior corner of postpronotum. Wing veins yellow basally to brownish apically. Halter white. Calypter entirely yellow. Legs dark brown with apices of femora yellow for distance equal to width of femur apex; base and apex of tibiae gradually light brown to yellowish. Abdomen brown to dark brown with posterior (and sometimes posterolateral) margin of tergites and laterobasal margin of epandrium yellowish. Genitalia: (Figs 822 - 824) Hypandrium subtriangular to evenly rounded apically; inner lobe narrow and strongly bent medially with one seta at elbow; adjoining membrane haired. Postgonite narrow when viewed laterally, strongly flattened medially. Phallophorus flanked by one pair of long bars that are darker and pointed apically. Halves of basiphallus narrow with apical 1 / 3 expanded, plate-like; crossing basally, left sclerite with ventrobasal arm. Hypophallus with one pair of apically converging bars that are elongate, apically pointed, and flanking dark, upcurved medial V-shaped sclerite. Paraphallus absent. Duct pigmented apically. Mesophallus dark and cylindrical with rounded base, length 3 x width, fused via narrow band to distiphallus. Distiphallus divided into one pair of narrow dark tubules that are slightly outcurved apically, but are strongly curved dorsally on basal 2 / 3. Ejaculatory apodeme with short stalk and very broad, rounded apical blade; sperm pump with strong transverse sclerite.	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
79AC9E304FFF23D3C0722E6E62C734C5.taxon	distribution	Distribution. USA: NY *, VA.	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
79AC9E304FFF23D3C0722E6E62C734C5.taxon	materials_examined	Additional material examined. USA. NY: Ithaca, 17. v. 1936, H. K. Townes, A. L. Melander (1 ♀, USNM), Bear Mtn., 31. v. 1937, A. L. Melander (1 ♂ 1 ♀, USNM), VA: Fairfax Co., Turkey Run Park, 0.3 km W mouth Turkey Run, 38 ° 58 ' N, 77 ° 09.6 ' W, Malaise trap, river, 14 - 17. v. 2006, D. R. Smith (1 ♂, USNM).	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
F36B5E25A7D4ADE02B4D85B23C5733A9.taxon	description	Figs 819 - 821	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
F36B5E25A7D4ADE02B4D85B23C5733A9.taxon	description	Description. Wing length 2.2 mm (♂), 2.2 - 2.4 mm (♀). Vein dm-m absent. Eye height divided by gena height: 3.0 - 3.8. First flagellomere rounded, distal hairs slightly longer, especially dorsally. Cheek narrow. Chaetotaxy: Two ori, anterior seta slightly shorter to 2 / 3 length; two ors, posterior seta slightly shorter. Ocellar seta slightly longer than fronto-orbitals, postocellar more so. Four dorsocentrals, one presutural, decreasing in height anteriorly. Acrostichal setulae in six rows. Colouration: Body with slight brownish pruinosity that is slightly thicker dorsally on thorax. Head light brown with antenna, clypeus, palpus, back of head, ocellar tubercle, posterior margin of frons and fronto-orbital plate dark brown; face and gena paler, yellowish. Remainder of body dark brown, with apices of femora (more so on fore leg) yellowish, and notopleuron and postpronotum sometimes with slightly paler tint. Halter white. Calypter margin and hairs light brown. Abdomen dark brown. Genitalia: (Figs 819 - 821) Hypandrium well-developed, rounded apically; inner lobe bent at midpoint and with two apical setae. Postgonite strongly narrow in profile, flattened medially, with one seta. Basiphallus relatively short, dark, and well-sclerotised along dorsum, weaker with irregular margin ventrally; left sclerite with ventrobasal arm. Hypophallus with well-defined and sclerotised lateral margin, sometimes fused to pair of medial plates that are somewhat H-shaped and joined ventromedially. Base of mesophallus flanked by converging rod-like paraphalli. Mesophallus constricted and angled upwards at midpoint, narrower basally, apically widening to distiphallus, with ventral suture. Distiphallus divided into one pair of narrow, shallowly sinuate tubules. Ejaculatory apodeme with short, ill-defined stem and narrow blade with clear margin; sperm pump clear with transverse sclerotised band.	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
F36B5E25A7D4ADE02B4D85B23C5733A9.taxon	distribution	Distribution. Canada: AB. USA: MD *.	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
F36B5E25A7D4ADE02B4D85B23C5733A9.taxon	materials_examined	Additional material examined. USA. MD: Elkton, 86 - 23, DFB, em. 1. v. 1987, x Thimbleweed (1 ♂, UDCC), x Thimbleberry (2 ♀, UDCC).	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
0D70DD13D5305DFF4088D326B48C77F1.taxon	description	Figs 796 - 799	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
0D70DD13D5305DFF4088D326B48C77F1.taxon	description	Description. As described for P. ilicicola except as follows: Wing length 1.5 - 1.9 mm (♂), 1.7 - 2.0 mm (♀). Eye height divided by gena height: 4.3 - 6.0. Chaetotaxy: Anterior ori minute. Four to five scattered rows of acrostichal setulae. Colouration: Parafacial and side of face dark grey, centre of face yellowish. Posterolateral margin of frons dark to base of inner vertical seta; dark spot sometimes extending along eye margin to level of posterior ori and occasionally extending from margin to surround base of all fronto-orbitals. Legs slightly whitish with mid tibia sometimes paler. Genitalia: (Figs 796 - 799) Surstylus short and tapered. Epandrial process relatively broad. Sclerite of hypophallus ill-defined, darkest near leading margin, but entire lateral and ventral surface of hypophallus lightly sclerotised to form an irregular cup. Paraphalli narrow, curved, diverging. Mesophallus ~ 11 x longer than wide at midpoint, apex broader, clearer, and U-shaped. Arms of distiphallus broadly separate, weakly diverging, and not much more than 1 / 2 length of mesophallus.	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
0D70DD13D5305DFF4088D326B48C77F1.taxon	distribution	Distribution. USA: AL, DC, FL, MA, MD, ME, MI, MN, NY, PA, TN, TX, VA, WV.	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
0D70DD13D5305DFF4088D326B48C77F1.taxon	materials_examined	Additional material examined. See Lonsdale and Scheffer (2011).	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
4B34F49783181278291C24E652EE47CD.taxon	description	Figs 825 - 827	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
4B34F49783181278291C24E652EE47CD.taxon	description	Description. Wing length 1.7 - 2.0 mm (♂). Female unknown. Vein dm-m absent. Eye height divided by gena height: 2.8 - 3.1. First flagellomere small and rounded, not much higher than scape; hairs along anterodorsal margin slightly longer. Gena strongly narrowing anteriorly; cheek narrow, weakly continuing along posterior margin of eye. Chaetotaxy: One or two ori; one or two ors (posterior ors no more than 4 / 5 length of anterior ors, but both ors subequal on one side of frons in holotype); two ori and two ors only seen together in holotype, where anterior ori 1 / 2 - length on one side and absent on other. Ocellar and postocellar setae subequal to fronto-orbitals. Four dorsocentrals, one presutural, decreasing in height anteriorly. Acrostichal setulae in four scattered rows anteriorly; Spencer and Steyskal (1986 b) notes 2 rows, possibly in unexamined paratype. Intra-alar setulae reduced in number. Colouration: Body mostly dark brown; frons, sometimes including fronto-orbital plate, paler; palpus, ventral margin of gena, first flagellomere and ocellar tubercle darker; halter white; postpronotum and notopleuron with faint yellow tint or mottling; apices of femora yellow, fore tibia sometimes paler with base faintly yellow. Notum subshiny. Calypter hairs light brown, margin paler. Genitalia: (Figs 825 - 827) Hypandrium subtriangular in outline, inner lobe sometimes with setae. Postgonite well-developed with one seta. Phallophorus flanked by one pair of small bands. Halves of basiphallus relatively broad, flat, situated roof-like dorsally; left sclerite with ventrobasal process. Hypophallus small, directed apically, composed of one pair of small, pale, converging finger-like sclerites; holotype with sclerites more parallel and with small, faint medial sclerotised line. Paraphallus similar to sclerite of hypophallus but thicker, converging below distiphallus. Mesophallus not evident. Distiphallus ill-defined, linear with two lightly sclerotised to membranous strips. Ejaculatory apodeme small and dark with apex barely widened.	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
4B34F49783181278291C24E652EE47CD.taxon	distribution	Distribution. Canada: NS *. USA: MD *, NC, VA *, WV *.	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
4B34F49783181278291C24E652EE47CD.taxon	materials_examined	Additional material examined. Canada. NS: Mount Uniacke, 5. viii. 1958, J. R. Vockeroth, CNC 480188 (1 ♂, CNC). USA. MD: Colesville, 4. vi. 1977, W. W. Wirth (1 ♂, USNM), VA: Shenandoah, Big Meadows, 2. vii. 1939, A. L. Melander (1 ♂, USNM), Giles Co., Mtn. lake, 9. ix. 1970, G. Steyskal (2 ♂, USNM), WV: Parkersburg, 21. vi. 1970, G. Steyskal (2 ♂, USNM), Ritchie Co., North Bend St. Pk., 23. vi. 1970, G. Steyskal (2 ♂, USNM).	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
98FB854231611151C2C751A0618368FB.taxon	description	Figs 800, 801	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
98FB854231611151C2C751A0618368FB.taxon	description	Description. As described for P. ilicicola except as follows: Wing length 1.8 - 2.5 mm (♂), 2.1 - 2.6 mm (♀). Eye height divided by gena height: 5.3 - 6.0. Chaetotaxy: Anterior ori 1 / 2 length of posterior ori. Four to five scattered rows of acrostichal setulae. Colouration: Face yellowish centrally and dark grey laterally. Posterolateral corner of frons and fronto-orbital plate dark, excluding paler anterior and inner-anterior margins. Notum sometimes with faint to distinct yellowish spots on anterior and posterior margins of anepisternum. Legs brown with tibiae and tarsi paler or with yellowish to white mottling, particularly on fore and mid legs. Genitalia: (Figs 799 - 801) Surstylus broadly rounded, short. Epandrial process short, slightly downturned. Lateral sclerite of hypophallus narrow on basal 1 / 2, broader distal 1 / 2. Paraphallus small, lobate, and curved laterally. Mesophallus ~ 6 x longer than width at midpoint. Arms of distiphallus separate, narrow, and subparallel on basal 1 / 2.	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
98FB854231611151C2C751A0618368FB.taxon	distribution	Distribution. Canada. ON *. USA: GA, MA, MD, ME, NC, NY, PA.	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
98FB854231611151C2C751A0618368FB.taxon	materials_examined	Additional material examined. Canada. ON: [Ottawa], Constance Bay, Freeman and Lewis, Ilex verticillata, see also leaf mines colln., em, 28. ii. 1957, 56 - 205, CNC 480189 - 480195 (2 ♂ 4 ♀ 5 puparia [gel capsule], CNC). USA. MA: Berkshire Co., Savoy, 1. vi. 2013, C. S. Eiseman, ex Ilex verticillata, em. 14 - 24. vi. 2013, # CSE 561, CNC 392711, CNC 392712 (1 ♂ 1 ex, CNC), Franklin Co., Northfield, Crag Mountain, 16. x. 2013, C. S. Eiseman, ex. Ilex mucronata, em. 11. iii. 2014, # CSE 998, CNC 384759 - 384777 (10 ♂ 9 ♀, CNC), Hampshire Co., Cummington, 18. v. 2013, C. S. Eiseman, ex Ilex verticillata, em. 1. vi. 2013, # CSE 549, CNC 392689 - 392700 (6 ♂ 6 ♀, CNC), Nantucket Co., State Forest, 10. vi. 2013, C. S. Eiseman, ex. Ilex verticillata, em. 16. vi. 2013, # CSE 565, CNC 384810 (1 ♂, CNC). Also see Lonsdale and Scheffer (2011).	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
1C9DC15644DCBB91C48C50A2B1BECA1F.taxon	description	Figs 828 - 832	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
1C9DC15644DCBB91C48C50A2B1BECA1F.taxon	description	Description. Wing length 1.8 mm (♂). Female unknown. Vein dm-m absent. Eye height divided by gena height: 3.7. First flagellomere relatively large, 1 / 3 height of eye, slightly longer than high, hairs along distal margin slightly longer. Ocellar triangle not much larger than tubercle and rounded. Parafacial projecting, slightly narrower than cheek; fronto-orbital plate slightly projecting medially, becoming more pronounced anteriorly. Chaetotaxy: One ori; two ors; all subequal. Ocellar seta slightly longer than fronto-orbitals, postocellar more so. Few orbital setulae. Four dorsocentrals, one presutural, slightly decreasing in height anteriorly. Acrostichal setulae irregular and few, variably appearing in two to four rows around and slightly posterior to suture. Few intra-alar setulae around suture. Colouration: Head partially yellow, with antenna black, back of head, ocellar triangle (barely larger than tubercle) and ventral margin of gena dark brown; palpus and clypeus brown; posterolateral corner of frons dark brown to base of inner vertical seta, dark spot continuing anteriorly along fronto-orbital plate to disappear between bases of ors. Thorax dark brown with grey pruinosity that is denser dorsally; pruinosity also seen more thinly across remainder of body, especially along dark lateral regions of frons. Halter white. Calypter margin and hairs brownish. Legs mostly dark brown; coxae brownish, fore coxa dark towards base; apex of femora and bases of tibiae yellow. Abdomen dark brown. Genitalia: Epandrium shallow, long setose posteriorly, completely fused to small surstylus. Postgonite broad and flat with large distoventral lobe and fused to hypandrium. Dorsal margin of phallophorus fused to single apically split basiphallus. Paraphallus originating slightly beyond apices of basiphallus, converging and becoming more plate-like apically; broken medially. Mesophallus not evident. Distiphallus pale and cylindrical, narrower at base, dark apically and weakly pigmented dorsally. Ejaculatory apodeme with small pale blade and broad base.	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
1C9DC15644DCBB91C48C50A2B1BECA1F.taxon	distribution	Distribution. USA: MD.	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
1C9DC15644DCBB91C48C50A2B1BECA1F.taxon	etymology	Etymology. The specific epithet recognises the collector of the holotype, I. Winkler, who provided the specimen to the author after recognising it to be an undescribed species.	en	Lonsdale, Owen (2021): Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states. ZooKeys 1051: 1-481, DOI: http://dx.doi.org/10.3897/zookeys.1051.64603, URL: http://dx.doi.org/10.3897/zookeys.1051.64603
