taxonID	type	description	language	source
2E10044760175409FF6106898E21FBFC.taxon	diagnosis	Diagnosis. Males of A. acutus have the prosternum dorsoventrally flattened until it reaches the procoxae, where it is abruptly expanded ventrally (Fig. 9). Males of other species of the genus have the prosternum gradually expanding ventrally toward the procoxae (Fig. 8). Antennomeres 6 and 7 usually have a secondary expansion at approximately twothirds of total length from base, which is not present in the other species (Fig. 12). This character may be difficult to see or absent in some specimens, but it is usually visible on other antennomeres. Females have a slight impression on the prosternum anterad the procoxae and setae on the scutellum that are mostly projecting posteriorly.	en	Etzler, Frank E., Johnson, Paul J. (2018): Athoplastus Johnson and Etzler (Coleoptera: Elateridae: Dendrometrinae), a New Genus of Click Beetle from the Northwestern Continental USA. The Coleopterists Bulletin 72 (3): 503-521, DOI: 10.1649/0010-065X-72.3.503, URL: http://dx.doi.org/10.1649/0010-065x-72.3.503
2E10044760175409FF6106898E21FBFC.taxon	description	Description. Male. Length 15.0 – 17.5 mm, width 3.5 – 4.0 mm (measured across bases of elytra). Yellow-brown to dark brown (Figs. 1, 6 – 7). Head: Ocular index = 55.0 – 63.6 (mean = 58.1; mode = 60; n = 30). Antenna: Mean ratio of antennomeres [antennomere length relative to pedicle (antennomere 2)] 2 – 11: 1: 1.4: 3.5: 3.9: 3.9: 4.1: 4.1: 4.1: 3.9: 4.8 (n = 11). Antennomeres 6 and 7 often with secondary expansion at 2 / 3 total length (see Fig. 12). This character may also be on other antennomeres but is usually less pronounced. Pronotum: 1.2 – 1.7 X wider than long. Lateral margin sinuate anterad divergent hind angles, widening just anterad midlength, lateral carina dorsoventrally flattened on anterior half. Punctures distinct, subumbilicate and dense on disc, separated by less than half their own diameter, although some specimens have impunctate areas just laterad midline; punctures becoming clearly umbilicate and denser along anterior and lateral margins. Prosternum: Dorsoventrally flattened with dense, shallow, umbilicate punctures; anterior lobe short, broadly rounded, shallowly deflexed. Posterior process short and arcuate, distinctly raised ventrally between procoxae, then sharply deflexed dorsally before ending in small hook; midline of prosternum often with raised section just anterad procoxal rise, sometimes nearly carinate, flanked by indentations in prosternum. Legs: Tarsomere 5 equal in length to tarsomere 1 on pro- and mesotarsi, tarsomere 5 equal in length to tarsomere 2 on metatarsi. Elytra: Elongate, subparallel, 5.2 X pronotal length; striae shallowly impressed, deeper basally and apically, punctures evanescent; intervals shallowly convex, punctures rough, shallow, and irregularly distributed. Aedeagus (Figs. 16 – 18): Basal piece about 1 / 3 total length, with triangular membranous section on ventral surface (Fig. 17); median lobe 1.3 X length of parameres, slightly deflexed ventrally at tip, median carina on ventral surface, basal struts coming off at an obtuse angle; parameres wide basally, edges sinuate and distinctly narrowing toward tip, tip with acute lateral expansion bearing 4 – 6 setae, either blunt or sharp (Fig. 18). Female. Length 21 – 26 mm, width 5 – 6 mm (measured across bases of elytra). Yellow-brown to red-brown (Fig. 5). Head: Ocular index = 70.8 – 74.1 (mean = 72.7, n = 3). Antenna: Mean ratio of antennomeres 2 – 11: 1: 1.2: 2.1: 1.9: 1.9: 1.8: 1.7: 1.6: 1.5: 1.7 (n = 3). Note: Values for antennomeres 8, 10, and 11 are each based only on two specimens. Pronotum: As wide as or 1.1 X wider than long. Lateral edge sinuate anterad divergent hind angles, widening just anterad midlength. Scutellar shield: Setae directed posteriorly. Specimens Examined (45). Males. Holotype. USA: IDAHO: [Shoshone Co.], Wallace; 14. iv. [19] 40, Otto Huellemann (FMNH). Paratypes. USA: IDAHO: [Shoshone Co.], Wallace, 14. iv. 1940, [Otto Huellemann?] (2, FSCA; 1, FMNH); Wallace, Otto Huelleman (1, FMNH). Other Male Specimens Examined. USA: IDAHO: [Kootenai Co.] Ft. Sherman [Coeur d’ Alene], Mch. [March?] 1896, J. C. Merrill (1, USNM); 4 th of July Summit, 30. iv. 1974, W. F. Barr (1, WFBM); Kidd Island Bay, 1987, E. Cardwell (1, WFBM); Latah Co., Harvard, Laird Pk, 03. iv. 1962, S. D. Smith, attracted by U. V. light (1, USNM; 4, WFBM); Near Moscow, Spring 1932, P. L. Rice (1, USNM); Sect. @ Pond; Moscow, 01. v. [19] 57, D. T. Allison, Collector (1, WFBM); [Shoshone Co.] Clarkia, 8. iv. 1934, I. W. Bales (1, USNM); Wallace, 8. iv. 1939, Huelleman (1, USNM); Wallace, 14. iv. 1939, Huelleman (1, FMNH); Wallace, 26. iv. 39, Huelleman (2, FMNH); Wallace, 1. v. 1939, Huelleman (1, FMNH); Wallace, 9. v. 39, Huelleman (1, FMNH); Wallace, 20. vii. 1939, Huelleman (1, FMNH); Wallace, [no date], Huelleman (1, FMNH); Wallace, 12 – 20. iv. 1940, O. Nudlemann [likely a mistype of Huelleman] (3, FMNH). MONTANA: Lincoln Co., Jnct. Kootenai & Yaak Rs., 48.5855 ° N, 115.9769 ° W, 12. iv. - 03. vi. 2014, [elev.] 1927 ft, C. J. Hart, Lindfnl [with] PSB [lure] (1, MTEC, MTEC 019710); Ravalli Co., Rombo Campgrd, 45.7644 ° N, 114.2815 ° W, 25. iv. 2013, [elev.] 4505 ft, F. E. Etzler, Handnet at Night (1, MTEC 010381); Rombo Campgrd, 45.7680 ° N, 114.2810 ° W, 04. v. 2013, [elev.] 4508 ft, F. E. Etzler, Handnet at Night (1, MTEC); Rombo Campgrd, 45.7642 ° N, 114.2818 ° W, 19. iv. 2014, [elev.] 4505 ft, F. E. Etzler, Blacklight (8, MTEC). WASHINGTON: Stevens Co., Pleasant Valley, 4. v. 1957, on maple, A. R. Gittins Collector (1, WFBM). Females. USA: IDAHO: [Latah Co.], Moscow Mt., iv. [19] 12, Idaho (1, USNM); Moscow, 23. iv. 1955, F. T. Cook (1, USNM; 1, WFBM). MONTANA: Mineral Co., Trout Creek Camp, 17. iii – 22. vi. 1995, D. L. Gustafson, pitfall trap (1, MTEC); Ravalli Co., Sand Crk - Blue Joint [Crk], 05. x. 1996 – 06. vi. 1997, D. L. Gustafson, pitfall trap (1, MTEC); Rombo Campgrd, 45.7644 ° N, 114.2815 ° W, 25. iv. 2013, [elev.] 4505 ft, F. E. Etzler, handnet at night (1, MTEC 010382). Larvae. USA: IDAHO: Moscow Mtn, 15. v. 1951, Lane-Downie (2, USNM). MONTANA: Mineral Co., Trout Creek Campground, 47.1174 ° N, 114.8673 ° W, 25. iv – 19. vi. 2013, elev. 2940 ft, F. E. Etzler, pitfall (1, MTEC, MTEC 008126); Ravalli Co., Blue Joint Creek, base of stump, 45.6985 ° N, 114.3586 ° W, 26. iv – 5. v. 2013, elev. 4960 ft, F. E. Etzler, pitfall (1, MTEC, MTEC 019709); Rombo Campground, 45.7680 ° N, 114.2810 ° W, 4. v. 2013, elev. 4508 ft, F. E. Etzler, by hand (1, MTEC, MTEC 019713).	en	Etzler, Frank E., Johnson, Paul J. (2018): Athoplastus Johnson and Etzler (Coleoptera: Elateridae: Dendrometrinae), a New Genus of Click Beetle from the Northwestern Continental USA. The Coleopterists Bulletin 72 (3): 503-521, DOI: 10.1649/0010-065X-72.3.503, URL: http://dx.doi.org/10.1649/0010-065x-72.3.503
2E10044760175409FF6106898E21FBFC.taxon	distribution	Distribution. This species is known from westernmost Montana, northern Idaho (north of Idaho County), and the northeast corner of Washington State (Fig. 29). Taxonomic Remarks. This species is represented by the greatest number of specimens and has the broadest known species range of the four species in the genus. Due to this and the soft-bodiedness of the species, variation exists among specimens. However, no clear link to locality or date of collection was discovered. The presence of impunctate areas on either side of the midline is very rare, only occurring in a small number of northern Idaho specimens. Subtle variation also exists in male genitalia, but again there is no link to locality or collecting date. Mitochondrial DNA was amplified for Montana specimens. These results are discussed below. This is the only known species with associated larvae and ecological notes. Field Notes. The collecting localities of the Montana specimens of A. acutus were visited in early spring of 2013 to place pitfall traps in an attempt to capture fresh specimens and reliable DNA samples. While camped at Rombo Creek Campground near one of the localities of the MTEC females, the first author was examining trees around the campsite at dusk when a female was collected at the base of a ponderosa pine. A few minutes afterwards, a male was collected at the same spot, then additional males were observed flying and a few more collected. The collecting site was revisited in 2014, and specimens were collected at an ultra-violet (UV) light set up near a white sheet. Field observations were recorded and are discussed below. Larvae were collected at three Montana sites and tentatively associated with adults. Due to the apparent adult sexual dimorphism and lack of reared larvae, we confirmed associations using DNA barcoding.	en	Etzler, Frank E., Johnson, Paul J. (2018): Athoplastus Johnson and Etzler (Coleoptera: Elateridae: Dendrometrinae), a New Genus of Click Beetle from the Northwestern Continental USA. The Coleopterists Bulletin 72 (3): 503-521, DOI: 10.1649/0010-065X-72.3.503, URL: http://dx.doi.org/10.1649/0010-065x-72.3.503
2E10044760105409FF7C01F48FEBFA70.taxon	description	(Adult: Figs. 3, 11, 13, 19 – 21) Zoobank. org / urn: lsid: zoobank. org: act: 53 CAEDD 4 - 4 FC 0 - 4042 - ABEF- 8 D 7369 F 90 FCC	en	Etzler, Frank E., Johnson, Paul J. (2018): Athoplastus Johnson and Etzler (Coleoptera: Elateridae: Dendrometrinae), a New Genus of Click Beetle from the Northwestern Continental USA. The Coleopterists Bulletin 72 (3): 503-521, DOI: 10.1649/0010-065X-72.3.503, URL: http://dx.doi.org/10.1649/0010-065x-72.3.503
2E10044760105409FF7C01F48FEBFA70.taxon	diagnosis	Diagnosis. This species can be separated from all others in the genus by the combination of relatively sparse pronotal punctation (separated by greater than the diameter of a single puncture) (Fig. 11), sloped, non-depressed prosternum (Fig. 8), and antennomeres without secondary expansions (Fig. 13). The male genitalia are also distinctive, with the parameres broadly rounded apically (Fig. 21).	en	Etzler, Frank E., Johnson, Paul J. (2018): Athoplastus Johnson and Etzler (Coleoptera: Elateridae: Dendrometrinae), a New Genus of Click Beetle from the Northwestern Continental USA. The Coleopterists Bulletin 72 (3): 503-521, DOI: 10.1649/0010-065X-72.3.503, URL: http://dx.doi.org/10.1649/0010-065x-72.3.503
2E10044760105409FF7C01F48FEBFA70.taxon	description	Description. Male. Length 16.0 mm in length, width 3.5 mm (measured across bases of elytra). Red-brown, carina, tips of mandibles, and palps darker; edges of hypomeron and abdomen lighter, almost tawny yellow (Fig. 3). Head: Ocular index = 63.1. Antenna: Ratio of antennomeres 2 – 11: 1: 1.25: 2.9: 3: 3: 2.9: 2.9: 2.9: 2.9: 3.25 (Fig. 13). Pronotum: 1.5 X wider than long. Lateral margin completely carinate, sinuate anterad divergent hind angles, widening at anterior third; dorsoventrally flattened along lateral edges on anterior half. Punctures distinct, simple and moderately dense on disc, separated by at least diameter of a puncture, with 2 “ dimples ” on either side of midline just anterad midlength that are nearly impunctate; punctures remain uniform along lateral edges, becoming denser on hind angles. Prosternum: Slightly convex with dense, shallow, subumbilicate punctures; anterior lobe short, broadly rounded, shallowly deflexed. Posterior process short and arcuate, gradually raised ventrally between procoxae, then gradually deflexed posteriorly before becoming parallel to body plane. Legs: Tarsomere 5 longest on pro- and mesotarsi, tarsomere 5 equal in length to tarsomere 1 on metatarsi. Elytra: Elongate, subparallel, 4.8 X length of pronotum; striae shallowly impressed, deeper apically; intervals flat, punctures rough, shallow, and irregularly distributed. Aedeagus (Figs. 19 – 21): Basal piece 1 / 3 total length, with roughly trapezoidal membranous section on ventral surface (Fig. 20); median lobe just slightly longer than parameres when measured from basal struts, slightly deflexed ventrally at tip, median carina on ventral surface, basal struts coming off at an obtuse angle; parameres subparallel, gradually narrowing toward tip, tip with expanded lateral expansion bearing 4 setae (Fig. 21), which is broadly rounded apically. Female. Unknown.	en	Etzler, Frank E., Johnson, Paul J. (2018): Athoplastus Johnson and Etzler (Coleoptera: Elateridae: Dendrometrinae), a New Genus of Click Beetle from the Northwestern Continental USA. The Coleopterists Bulletin 72 (3): 503-521, DOI: 10.1649/0010-065X-72.3.503, URL: http://dx.doi.org/10.1649/0010-065x-72.3.503
2E10044760105409FF7C01F48FEBFA70.taxon	materials_examined	Specimens Examined (1). Holotype. USA: IDAHO: Idaho Co.; Lochsa RNA [Research Natural Area]; 29. iv. 1985; P. J. Johnson (1, PJJC to USNM).	en	Etzler, Frank E., Johnson, Paul J. (2018): Athoplastus Johnson and Etzler (Coleoptera: Elateridae: Dendrometrinae), a New Genus of Click Beetle from the Northwestern Continental USA. The Coleopterists Bulletin 72 (3): 503-521, DOI: 10.1649/0010-065X-72.3.503, URL: http://dx.doi.org/10.1649/0010-065x-72.3.503
2E10044760105409FF7C01F48FEBFA70.taxon	distribution	Distribution. This species is only known from the Lochsa River Valley in Idaho County, Idaho (Fig. 29).	en	Etzler, Frank E., Johnson, Paul J. (2018): Athoplastus Johnson and Etzler (Coleoptera: Elateridae: Dendrometrinae), a New Genus of Click Beetle from the Northwestern Continental USA. The Coleopterists Bulletin 72 (3): 503-521, DOI: 10.1649/0010-065X-72.3.503, URL: http://dx.doi.org/10.1649/0010-065x-72.3.503
2E10044760105409FF7C01F48FEBFA70.taxon	etymology	Etymology. The specific name “ lochsa ” is a noun in apposition representing the Nez Perce name for the Lochsa River, along which the only known specimen was collected.	en	Etzler, Frank E., Johnson, Paul J. (2018): Athoplastus Johnson and Etzler (Coleoptera: Elateridae: Dendrometrinae), a New Genus of Click Beetle from the Northwestern Continental USA. The Coleopterists Bulletin 72 (3): 503-521, DOI: 10.1649/0010-065X-72.3.503, URL: http://dx.doi.org/10.1649/0010-065x-72.3.503
2E10044760105409FF7C01F48FEBFA70.taxon	discussion	Taxonomic Remarks. While it is best to describe a species based on more than one specimen, the unique pronotal punctation and male genitalia support recognition as a new species. We also feel that this description will promote collecting trips to collect more specimens of this species and expand its known range.	en	Etzler, Frank E., Johnson, Paul J. (2018): Athoplastus Johnson and Etzler (Coleoptera: Elateridae: Dendrometrinae), a New Genus of Click Beetle from the Northwestern Continental USA. The Coleopterists Bulletin 72 (3): 503-521, DOI: 10.1649/0010-065X-72.3.503, URL: http://dx.doi.org/10.1649/0010-065x-72.3.503
2E1004476010540AFD6C008E88DEFD6D.taxon	description	(Adult: Figs. 2, 14, 25 – 27) Zoobank. org / urn: lsid: zoobank. org: act: 9601386 F- 4698 - 4376 - 8144 - FB 8 FED 38 DAB 2	en	Etzler, Frank E., Johnson, Paul J. (2018): Athoplastus Johnson and Etzler (Coleoptera: Elateridae: Dendrometrinae), a New Genus of Click Beetle from the Northwestern Continental USA. The Coleopterists Bulletin 72 (3): 503-521, DOI: 10.1649/0010-065X-72.3.503, URL: http://dx.doi.org/10.1649/0010-065x-72.3.503
2E1004476010540AFD6C008E88DEFD6D.taxon	diagnosis	Diagnosis. This species can be distinguished from other Athoplastus species by the combination of the non-compressed prosternum (Fig. 8), dense pronotal punctation (Fig. 10), and elytra without dark markings along the striae of the elytra. More subtle characters that help distinguish this species are the more parallel-sided pronotum (Fig. 2) and the slightly wider antennomeres (Fig. 14). These last two characters are best used when comparing specimens of different species and become quite clear in this way. However, when identifying just a single specimen, these characters are less useful, so the characters from the key should be used to eliminate other potential species. This species is quite similar to A. rainieri, but the paramere tips and V-shaped membranous area of the basal piece of the male genitalia (Figs. 25 – 27) and geographic distribution, in addition to the subtle characters above, will distinguish these two species.	en	Etzler, Frank E., Johnson, Paul J. (2018): Athoplastus Johnson and Etzler (Coleoptera: Elateridae: Dendrometrinae), a New Genus of Click Beetle from the Northwestern Continental USA. The Coleopterists Bulletin 72 (3): 503-521, DOI: 10.1649/0010-065X-72.3.503, URL: http://dx.doi.org/10.1649/0010-065x-72.3.503
2E1004476010540AFD6C008E88DEFD6D.taxon	description	Description. Male. Length 15 – 17 mm in length, width 3 – 4 mm (measured across bases of elytra). Red-brown to brown, carina, palps, and tips of mandibles darker; posterior margin of hypomeron, coxae, and tarsi lighter, almost tawny yellow (Fig. 2). Head: Ocular index = 60.0 – 68.4 (mean = 65.0, n = 3). Antennae: Mean ratio of antennomeres 2 - 11: 1: 1.25: 3.4: 3.6: 4; 4: 3.8: 4: 5.2 (n = 2). [Note: Antennomeres 8 – 11 are adjusted values based only on one specimen. The antennomeres, on average, are less narrowed than in other species. This is difficult to describe, so compare Fig. 14 to Figs. 12 and 13.] Pronotum: 1.4 – 1.6 X wider than long. Lateral margin completely carinate, subparallel anterad divergent hind angles; subtly dorsoventrally flattened along lateral edges near anterior fourth. Punctures distinct, simple and dense on disc, separated by at most 1 diameter, often by about 0.5 X diameter of puncture; punctures becoming denser along margins, nearly continuous laterally. Prosternum: Slightly convex with dense, shallow, subumbilicate punctures; anterior lobe short, broadly rounded, shallowly deflexed. Posterior process short and arcuate, gradually raised ventrally between procoxae, then deflexed posteriorly. Legs: Tarsomere 5 equal to tarsomere 1 on all tarsi. Elytra: Elongate, subparallel, 4.0 – 4.5 X pronotal length; striae shallowly impressed, deeper apically; intervals flat, punctures fine, shallow, and irregularly distributed. Aedeagus (Figs. 25 – 27): Basal piece 2 / 5 total length, with broadly triangular membranous section on ventral surface (Fig. 26); median lobe 1.3 X length of parameres, slightly deflexed ventrally at tip, median carina on ventral surface, basal struts following edges of median lobe; parameres wide basally, edges slightly sinuate and gradually narrowing toward tip, tip with very acute lateral expansion bearing 2 setae (Fig. 27). Female. Unknown.	en	Etzler, Frank E., Johnson, Paul J. (2018): Athoplastus Johnson and Etzler (Coleoptera: Elateridae: Dendrometrinae), a New Genus of Click Beetle from the Northwestern Continental USA. The Coleopterists Bulletin 72 (3): 503-521, DOI: 10.1649/0010-065X-72.3.503, URL: http://dx.doi.org/10.1649/0010-065x-72.3.503
2E1004476010540AFD6C008E88DEFD6D.taxon	materials_examined	Specimens Examined (8). Holotype. USA: WASHINGTON: [Whitman Co.], Pullman, 7. vi. [18] 98, C. V. Piper (1, WSUC). Paratypes. USA: IDAHO: Kootenai Co., Athol, 29. iv. 1957, W. F. Barr Collector (1, WFBM). WASHINGTON: Washington T [erritory] (1, USNM); Pullman, Sept. [year unknown] (1, USNM); [Whitman Co.], Pullman, 8. vi. [18] 99 (1, WSUC); Pullman, 31. iii. [19] 11 (1, WSUC); Pullman, 01. iv. [19] 17 (1, USNM); Pullman, Apr [il] [19] 20, Chester Dixon (1, USNM); Kamiak Butte, 23. ii. [19] 34 Wn, J. F. Clarke (1, USNM).	en	Etzler, Frank E., Johnson, Paul J. (2018): Athoplastus Johnson and Etzler (Coleoptera: Elateridae: Dendrometrinae), a New Genus of Click Beetle from the Northwestern Continental USA. The Coleopterists Bulletin 72 (3): 503-521, DOI: 10.1649/0010-065X-72.3.503, URL: http://dx.doi.org/10.1649/0010-065x-72.3.503
2E1004476010540AFD6C008E88DEFD6D.taxon	distribution	Distribution. This species is only known from the areas of Pullman, Washington and Athol, Idaho (Fig. 29).	en	Etzler, Frank E., Johnson, Paul J. (2018): Athoplastus Johnson and Etzler (Coleoptera: Elateridae: Dendrometrinae), a New Genus of Click Beetle from the Northwestern Continental USA. The Coleopterists Bulletin 72 (3): 503-521, DOI: 10.1649/0010-065X-72.3.503, URL: http://dx.doi.org/10.1649/0010-065x-72.3.503
2E1004476010540AFD6C008E88DEFD6D.taxon	etymology	Etymology. The specific name “ palouse ” is a noun in apposition derived from the geographic area of collection of the majority of specimens.	en	Etzler, Frank E., Johnson, Paul J. (2018): Athoplastus Johnson and Etzler (Coleoptera: Elateridae: Dendrometrinae), a New Genus of Click Beetle from the Northwestern Continental USA. The Coleopterists Bulletin 72 (3): 503-521, DOI: 10.1649/0010-065X-72.3.503, URL: http://dx.doi.org/10.1649/0010-065x-72.3.503
2E1004476010540AFD6C008E88DEFD6D.taxon	discussion	Taxonomic Remarks. The distance between localities is quite a surprise, but the morphology of specimens from the two localities is consistent. Athoplastus palouse may co-occur with A. acutus.	en	Etzler, Frank E., Johnson, Paul J. (2018): Athoplastus Johnson and Etzler (Coleoptera: Elateridae: Dendrometrinae), a New Genus of Click Beetle from the Northwestern Continental USA. The Coleopterists Bulletin 72 (3): 503-521, DOI: 10.1649/0010-065X-72.3.503, URL: http://dx.doi.org/10.1649/0010-065x-72.3.503
2E1004476013540BFD4D06788E3BFA4E.taxon	diagnosis	Diagnosis. This species is distinguished from all other species of the genus by the combination of close pronotal punctures (separated by less than one diameter of a puncture) (Fig. 10), sloped prosternum (Fig. 8), and dark markings at each puncture along the striae of the elytra (Fig. 4). This last character is likely not a good species-level character and may be related to specimen development. Athoplastus rainieri is quite similar to A. palouse, which can be distinguished as noted above.	en	Etzler, Frank E., Johnson, Paul J. (2018): Athoplastus Johnson and Etzler (Coleoptera: Elateridae: Dendrometrinae), a New Genus of Click Beetle from the Northwestern Continental USA. The Coleopterists Bulletin 72 (3): 503-521, DOI: 10.1649/0010-065X-72.3.503, URL: http://dx.doi.org/10.1649/0010-065x-72.3.503
2E1004476013540BFD4D06788E3BFA4E.taxon	description	Description. Male. Length 16 mm, width 4 mm (measured across bases of elytra). Red-brown, carina and tips of mandibles darker; antennae, palps, coxae, and tarsi lighter, almost tawny yellow (Fig. 4). Head: Ocular index = 61.1. Antennae: Ratio of antennomeres (2 – 11): 1: 1.25: 3: 3.25: 3.5: 3.25: 3.75: 2 (?): X: X. [Antennomere 9 appears to be broken, and 10 and 11 are missing on the specimen measured.] Pronotum: 1.1 X wider than long. Lateral margin completely carinate, slightly sinuate, almost subparallel anterad hind angles; convergent and slightly dorsoventrally flattened along lateral edges on anterior fourth. Punctures distinct, subumbilicate and dense on disc, separated by less than 0.2 X their own diameter, with 2 “ dimples ” on either side of midline just anterad midlength, with less close punctures; punctures becoming clearly umbilicate and denser along anterior and lateral margins. Prosternum: Slightly convex with dense, shallow, umbilicate punctures; anterior lobe short, broadly rounded, shallowly deflexed. Posterior process short and arcuate, gradually raised ventrally between procoxae, then sharply deflexed posteriorly; distinct ridge present immediately before procoxal cavity and along ventral surface of prosternal process. Legs: Tarsomere 5 equal to tarsomere 1 on pro- and mesotarsi, tarsomere 5 missing on both metatarsi. Elytra: Elongate, subparallel, 4 X pronotal length; striae shallowly impressed, deeper apically, punctures marked by darkening of the integument; intervals shallowly convex, punctures fine, shallow, and irregularly distributed. Aedeagus (Figs. 22 – 24): Basal piece approximately 1 / 3 total length, with deep, narrowly U-shaped, membranous section on ventral surface (Fig. 23); median lobe 1.2 X length of parameres, slightly deflexed ventrally at tip, median carina on ventral surface, basal struts following edges of median lobe; parameres wide basally, edges slightly sinuate and gradually narrowing toward tip, tip with subacute lateral expansion bearing 2 setae (Fig. 24). Female. Length 21 mm, width 5 mm (measured across bases of elytra). Yellow-brown. Head: Ocular index = 72.7. Antenna: Ratio of antennomeres 2 – 11: 1: 1.6: 2.2: 2: 1.8: 1.6: 1.8: 1.6: X: X: X. [Note: Antennae are broken on specimen examined, so the last three antennomeres of longest intact antenna are missing.] Pronotum: 1.25 X wider than long, hind angles divergent, sides broadly sinuate. Legs: Tarsomere 5 intermediate in size between tarsomeres 1 and 2 on metatarsi; pro- and mesotarsi as in male. Scutellar shield: Setae radiating from midline. Specimens Examined (3). Male. Holotype. USA: WASHINGTON: [Pierce Co.]; Mt. Rainier [E. C. Van Dyke, date unknown] (CASC, 1, CASC type no. 3181). Female. USA: WASHINGTON: [Kittitas Co.] Lk. Cle Elum; 13. v. 1936; M. C. Lane (1, USNM); Lk. Cle Elum [?], 26. v. 1937, M. C. Lane (1, USNM).	en	Etzler, Frank E., Johnson, Paul J. (2018): Athoplastus Johnson and Etzler (Coleoptera: Elateridae: Dendrometrinae), a New Genus of Click Beetle from the Northwestern Continental USA. The Coleopterists Bulletin 72 (3): 503-521, DOI: 10.1649/0010-065X-72.3.503, URL: http://dx.doi.org/10.1649/0010-065x-72.3.503
2E1004476013540BFD4D06788E3BFA4E.taxon	distribution	Distribution. This species is only known from the Cascade Range of mountains in Washington. Taxonomic Remarks. Van Dyke (1932) mentions a specimen seen “ in the collection of Prof. W. J. Chamberlin at Corvallis, Oregon. ” Chamberlain’ s collection was deposited at the Oregon State Arthropod Collection (OSAC) at Oregon State University (Oman 1970). However, a search of the OSAC yielded no specimen matching this description.	en	Etzler, Frank E., Johnson, Paul J. (2018): Athoplastus Johnson and Etzler (Coleoptera: Elateridae: Dendrometrinae), a New Genus of Click Beetle from the Northwestern Continental USA. The Coleopterists Bulletin 72 (3): 503-521, DOI: 10.1649/0010-065X-72.3.503, URL: http://dx.doi.org/10.1649/0010-065x-72.3.503
