taxonID	type	description	language	source
03F98790FFCFFF9EFEB1FDD8333FF8EA.taxon	description	(Figs. 1 - 6)	en	Zwick, Peter, Baumann, Richard W. (2011): Nemoura Jejudoensis A New Species Of Stonefly And The Redescription Of Amphinemura Baei Ham And Lee (Plecoptera, Nemouridae) From Jeju Island, Korea. Illiesia 7 (15): 148-155, DOI: http://doi.org/10.5281/zenodo.4760189
03F98790FFCFFF9EFEB1FDD8333FF8EA.taxon	materials_examined	Material examined. Holotype ♂, 3 ♂ paratypes, Republic of Korea, Cheju Island, Chungmoon City, Chonyeon waterfalls, 1 December 1986, M. F. Whiting [Jeju Island, Seogwipo City, Jungmun, Cheonjeyeon falls] Additional material with the same collection data: 13 ♀ plus 1 ♂ and 2 ♀ used for SEM study.	en	Zwick, Peter, Baumann, Richard W. (2011): Nemoura Jejudoensis A New Species Of Stonefly And The Redescription Of Amphinemura Baei Ham And Lee (Plecoptera, Nemouridae) From Jeju Island, Korea. Illiesia 7 (15): 148-155, DOI: http://doi.org/10.5281/zenodo.4760189
03F98790FFCFFF9EFEB1FDD8333FF8EA.taxon	description	Size and habitus. Front wing length 6.4 - 7.4 (mean 6.8) mm in ♂, 8.4 - 9.9 (mean 9.2) mm in ♀. Habitus typical of genus, not characteristic. Body and antennae brown, legs and palpi paler, yellowish brown. Wing veins brown, membrane of front wing with faint brownish tinge. Male. Tergite 9 medially short, otherwise unmodified. T 10 forms the medially largely membranous base plate of the epiproct. Epiproct closely appressed to base plate, basally firmly connected, difficult to detach for study. The epiproct consists of a short body and a long anterior rostrumlike process. Body of epiproct short, wider than long (Fig. 1). The transverse anterodorsal sclerite supports two backwardly turned claw-like plates each with four marginal bare teeth. There is an additional anteromedian tooth whose mediodorsal face is beset with cuticular spicules (Fig. 4). A short distance behind the anterodorsal sclerite lies another slender transverse sclerite which is laterally angled backward. Other sclerites are seen only in slidemounted epriprocts, by transparency (Fig. 1). There are no ventral setae or teeth. The basolateral earshaped structures that provide the normally-shaped epiprocts of other Nemoura - species with some mobility can be recognized but seem rigid, nonfunctional. Rostrum rising from a bulb-like base connected to the medial ends of the anterolateral sclerites. A central sclerite with median division line appears by transparency. Basal half of rostrum with several oblique folds, in side view seen to be triangularly raised near midlength (Fig. 2). Sternite 9 almost circular, with short pointed caudal tip. The club-shaped vesicle occupies 4 / 5 of the sternite length. The short blade-like median sclerites of the paraprocts lie alongside the tip of S 9. A membranous section separates them from the triangular, apically quite narrow outer lobe. Cerci curved forward and mediad, partly concealing the epiproct in dorsal view (Fig. 3). Medial flat face pale and convex outer face brown, and pilose. The tiny rudiment of segment 2 is at the top of the curved cercus, on the soft medial face. There is an inconspicuous subterminal point on the front side of the cercus. Female. Similar to the female of N. geei as illustrated by Shimizu (1997, his fig. 48). The almost circular pregenital plate on S 7 covers the middle of S 8 almost completely, the curved edges of the unpigmented vaginal lobes may be faintly visible (Fig. 5). Sides of S 9 with a poorly defined elongate pigmented strip. Triangular sclerites in the dorsal wall of the genital opening and the end of the oviduct, respectively, may be visible by transparency. In cleared genitalia (Fig. 6), two anterolateral caplike brown sclerites are seen at the side of a long carrot-shaped transparent tube connecting to the receptacula. Behind it the dorsal wall of the vagina has two paramedian areas with concentric cuticular rings, probably extensible pouches.	en	Zwick, Peter, Baumann, Richard W. (2011): Nemoura Jejudoensis A New Species Of Stonefly And The Redescription Of Amphinemura Baei Ham And Lee (Plecoptera, Nemouridae) From Jeju Island, Korea. Illiesia 7 (15): 148-155, DOI: http://doi.org/10.5281/zenodo.4760189
03F98790FFCFFF9EFEB1FDD8333FF8EA.taxon	diagnosis	Diagnosis. A member of the East Asian Nemoura ovocercia - group (sensu Shimizu 1997). N. geei Wu 1929 occurs on the Asian mainland (China, Korea, Russian Far East) as well as on Hokkaido and Honshu. Nemoura pekinensis Claassen 1929 and N. brevicercia Zhiltzova 1982 are junior synonyms (Shimizu 1997). We studied some specimens from mainland Korea. Excellent illustrations of N. geei are also available (Zhiltzova 1982, 2003, Shimizu 1997, Teslenko & Zhiltzova 2007). Several additional species occur in Japan, the surrounding islands, Taiwan (Shimizu 1997), and China (Li & Yang 2007). Nemoura geei, the present species, N. quadrituberata Shimizu 1997 (Tsushima Island), N. longilobata Shimizu 1997 (Hokkaido), and N. atristrigata Li & Yang 2007 (Henan) share a very long rostrum of the epiproct in combination with large, dentate, claw- or hand-shaped anterolateral sclerites. Nemoura jejudoensis possesses an anteromedial rough process above these toothed sclerites which is absent in N. geei. The shape of the transverse dorsal epiproct sclerites also differs between the two species. Details of epiproct structure distinguish also the other two similar species but they differ in additional characters from N. geei: N. quadrituberata by four hairy swellings on tergites 9 and 10, toothless cerci, and broad paraprocts; N. longilobata and N. atristrigata by a large hook on the cercus and broad, tongue-shaped paraprocts. Nemoura jejudoensis differs from N. geei only in the epiproct. We imagine that N. jejudoensis developed fairly recently from a small founder population of N. geei that ventured to the off-shore island of Jeju-do. Etymology. The specific name is a noun in apposition after Jeju Island where the specimens were collected that represent this new species.	en	Zwick, Peter, Baumann, Richard W. (2011): Nemoura Jejudoensis A New Species Of Stonefly And The Redescription Of Amphinemura Baei Ham And Lee (Plecoptera, Nemouridae) From Jeju Island, Korea. Illiesia 7 (15): 148-155, DOI: http://doi.org/10.5281/zenodo.4760189
03F98790FFCDFF9AFEDEFBBC35F1FCED.taxon	description	(Figs. 7 - 18)	en	Zwick, Peter, Baumann, Richard W. (2011): Nemoura Jejudoensis A New Species Of Stonefly And The Redescription Of Amphinemura Baei Ham And Lee (Plecoptera, Nemouridae) From Jeju Island, Korea. Illiesia 7 (15): 148-155, DOI: http://doi.org/10.5281/zenodo.4760189
03F98790FFCDFF9AFEDEFBBC35F1FCED.taxon	materials_examined	Holotype male; Donneko, Sugyipo-si [Seogwipo City], Jeju-do, Korea. Material studied. Republic of Korea, Cheju Island, Sogwipo City [Seogwipo City], spring above KAL Hotel fish hatchery, 10 November 1986, M. F. Whiting, 18 ♂, 9 ♀, plus 4 ♂, 4 ♀ for SEM study; Sogwipo City, Tonneko spring [Seogwipo City, Donneko], 18 - XII 1986, M. F. Whiting, 1 ♂; Chungmoon City, Chonyeon waterfalls [Seogwipo City, Jungmun, Cheonjeyeon falls], 28 September 1986, M. F. Whiting, 2 ♂, 1 ♀; 5 Dec. 1986, M. F. Whiting, 2 ♂, 2 ♀.	en	Zwick, Peter, Baumann, Richard W. (2011): Nemoura Jejudoensis A New Species Of Stonefly And The Redescription Of Amphinemura Baei Ham And Lee (Plecoptera, Nemouridae) From Jeju Island, Korea. Illiesia 7 (15): 148-155, DOI: http://doi.org/10.5281/zenodo.4760189
03F98790FFCDFF9AFEDEFBBC35F1FCED.taxon	description	Size and habitus. Front wing length 5.8 - 6.8 (mean 6.4) mm in ♂, 6.6 - 8.2 (mean 7.8) mm in ♀. Habitus as typical of genus. Pronotum with very dense coarse punctation, rough, matt. Body brown, legs and antennae brown with indistinctly paler bases, palpi yellowish. Wing veins brown, membrane with brownish tint. Male. T 9 medially constricted, caudal margin on either side of constriction curved, with a few rough setae (Fig. 11). A rhomboid membranous pale area remains between T 9 and the also constricted T 10 which is medially only a narrow strip in front of the epiproct base plate (Fig. 12). Base plate under the epiproct largely membranous. Epiproct in dorsal view parallel-sided, anterior third enlarged in gentle curve which turns abruptly mediad (Fig. 7). Basolaterally, the bases of the ventral sclerites project a little beyond the general contour. Dorsum densely covered with fine spicules, surface divided by fine suture which anteriorly forms a deep cleft separating two short membranous lobes. Between these projects, a dorsally split, anteriorly bifid tube. Laterally from it the spinose dark apices of the lateral sclerites project (Fig. 13). From beneath, the apices appear as black spinose humps (Figs. 14, 16). In ventral view (Fig. 8), the sclerites converge and narrow anteriorly until they lie close together, leaving only a narrow space between them. In it occur some spines of which mainly the insertion rings are seen from beneath. The spines themselves are best seen in lateral view. In side view the epiproct is strongly curved, dorsal surface without projections. S 9 with a long and slender vesicle, slightly enlarged above base, center of caudal half membranous (Fig. 18). Caudal margin of S 9 forming a triangular subgenital plate, that carries the apical gonopore. Paraprocts complex. Sclerite of outer lobe straight, then bent forward at right angle, the anterior part joined to apical part of middle sclerite but junction concealed behind the simple cercus. The middle sclerite is a slender sinuous band ending in a forward directed sclerite, with an apical row of long spines forming a concave line. It surrounds the pilose apex of the large membranous lobe situated above the short triangular inner sclerite (Figs. 15, 17). Female (Fig. 9). S 8 with distinct pregenital plate. S 9 largely covered by sclerotized anteriorly bare subgenital plates (sg) separated by a short narrow median slot. Caudal parts drawn out into triangular lobes appearing a bit swallow-tailed, mediocaudal edge gently sinuous. A caudolateral notch exposes a rounded pilose paragenital plate (pg). In cleared slide-mounted female genitalia in dorsal view (Fig. 10), the paragenital plates form the dorsal most layer in the form of a transparent triangle on each side. Below it are located the much larger dark triangular extensions of the subgenital plates which carry an acute, apparently hollow process (ap) along the medial edge, near midlength. There is a transverse crest (tc) on each sclerite. Anteriorly each sclerite supports an oval sclerotized internally rough pocket (rp). Between the latter is a funnel (f) formed by a sclerotized cone with a well defined straight median tube leading into the base of the membranous receptacles.	en	Zwick, Peter, Baumann, Richard W. (2011): Nemoura Jejudoensis A New Species Of Stonefly And The Redescription Of Amphinemura Baei Ham And Lee (Plecoptera, Nemouridae) From Jeju Island, Korea. Illiesia 7 (15): 148-155, DOI: http://doi.org/10.5281/zenodo.4760189
03F98790FFCDFF9AFEDEFBBC35F1FCED.taxon	diagnosis	Diagnosis. A member of the Amphinemura luteipes - group (Aubert 1967) which is, among other things, distinguished by the tube projecting from the epiproct apex. Most species have a roughly punctate matt pronotum, females of most have a distinct pregenital plate and neatly separate truncate lobes of the subgenital plate. The group is widespread in Asia and includes several Korean species (Zwick 2010). The present male is readily distinguished by the strong curvature of the row of spines on the paraproct tip, and by its epiproct. Presence of a strong apical sclerite on the lateral epiproct sclerites suggests close relations with A. steinmanni Zwick, A. denstigris Zwick, and A. rai Ham and Lee. However, in these species the apical sclerite is long and toothshaped. Females of the same species are similar, not all can be reliably identified by external characters. The distinctive inner vaginal structures are known only in a few. Among these, A. denstigris and A. rai also possess apical funnels that during copula may perhaps receive the apical epiproct tube. Females of this species are mainly distinguished by the exceptional length of the funnel, the acute hollow process, and the transverse crest.	en	Zwick, Peter, Baumann, Richard W. (2011): Nemoura Jejudoensis A New Species Of Stonefly And The Redescription Of Amphinemura Baei Ham And Lee (Plecoptera, Nemouridae) From Jeju Island, Korea. Illiesia 7 (15): 148-155, DOI: http://doi.org/10.5281/zenodo.4760189
03F98790FFCDFF9AFEDEFBBC35F1FCED.taxon	discussion	We know of no closely similar species from China or Japan.	en	Zwick, Peter, Baumann, Richard W. (2011): Nemoura Jejudoensis A New Species Of Stonefly And The Redescription Of Amphinemura Baei Ham And Lee (Plecoptera, Nemouridae) From Jeju Island, Korea. Illiesia 7 (15): 148-155, DOI: http://doi.org/10.5281/zenodo.4760189
03F98790FFC8FF9AFCB8FA53335CF988.taxon	materials_examined	Republic of Korea, Shichon City, Nam-do, Chong [not located], 6 April 1997, 3 ♂, 1 ♀.	en	Zwick, Peter, Baumann, Richard W. (2011): Nemoura Jejudoensis A New Species Of Stonefly And The Redescription Of Amphinemura Baei Ham And Lee (Plecoptera, Nemouridae) From Jeju Island, Korea. Illiesia 7 (15): 148-155, DOI: http://doi.org/10.5281/zenodo.4760189
03F98790FFC8FF9BFCB8F913341EFE89.taxon	materials_examined	Republic of Korea, Gangwan-do [Gangwon Province], Pyeongchang-gun, Odaesan National Park, trail to Songwon [Songwonsa] Temple, 13 May 2006, M. Kippenhan, 1 ♀.	en	Zwick, Peter, Baumann, Richard W. (2011): Nemoura Jejudoensis A New Species Of Stonefly And The Redescription Of Amphinemura Baei Ham And Lee (Plecoptera, Nemouridae) From Jeju Island, Korea. Illiesia 7 (15): 148-155, DOI: http://doi.org/10.5281/zenodo.4760189
03F98790FFC8FF9AFCB8F9C73316F93E.taxon	materials_examined	Republic of Korea, Pusan City, Heundae [Busan City, Haeundae], at spring behind Garden Mansion Apts, 18 May 1987, M. F. Whiting, 2 ♂, 4 ♀.	en	Zwick, Peter, Baumann, Richard W. (2011): Nemoura Jejudoensis A New Species Of Stonefly And The Redescription Of Amphinemura Baei Ham And Lee (Plecoptera, Nemouridae) From Jeju Island, Korea. Illiesia 7 (15): 148-155, DOI: http://doi.org/10.5281/zenodo.4760189
03F98790FFC9FF9BFF46FD613451FCD3.taxon	materials_examined	Republic of Korea, Chollanam Province, Sun-Cheon City [Jeonnam Province, Suncheon City], 10 - 15 April 1986, M. F. Whiting, 1 ♀, eggs on slide. Republic of Korea, Seoul, 5 VII 1953, E. L. Shepard, 1 ♀, without mature eggs.	en	Zwick, Peter, Baumann, Richard W. (2011): Nemoura Jejudoensis A New Species Of Stonefly And The Redescription Of Amphinemura Baei Ham And Lee (Plecoptera, Nemouridae) From Jeju Island, Korea. Illiesia 7 (15): 148-155, DOI: http://doi.org/10.5281/zenodo.4760189
03F98790FFC9FF9BFF46FBCA3757FAFF.taxon	materials_examined	Republic of Korea, Pusan City, Heundae [Busan City, Haeundae], at spring behind Garden Mansion Apts, 18 May 1987, M. F. Whiting, 29 June 1987, M. F. Whiting, 1 ♂. Republic of Korea, Chollanam Province, small village North of Sun-Cheon City [Jeonnam Province, Suncheon City], 12 May 1986, M. F. Whiting, 2 ♂, 1 ♀.	en	Zwick, Peter, Baumann, Richard W. (2011): Nemoura Jejudoensis A New Species Of Stonefly And The Redescription Of Amphinemura Baei Ham And Lee (Plecoptera, Nemouridae) From Jeju Island, Korea. Illiesia 7 (15): 148-155, DOI: http://doi.org/10.5281/zenodo.4760189
03F98790FFC9FF9BFF46FC45376EFBBE.taxon	materials_examined	Peoples Republic of Korea, 1 mile south Chirummal [not located], 1000 ft higher, XI- 53, E. Bullock, 8 larvae.	en	Zwick, Peter, Baumann, Richard W. (2011): Nemoura Jejudoensis A New Species Of Stonefly And The Redescription Of Amphinemura Baei Ham And Lee (Plecoptera, Nemouridae) From Jeju Island, Korea. Illiesia 7 (15): 148-155, DOI: http://doi.org/10.5281/zenodo.4760189
03F98790FFC9FF9BFF46FEC53745FDAC.taxon	materials_examined	Republic of Korea, Pusan City, Heundae [Busan City, Haeundae], at spring behind Garden Mansion Apts, 18 May 1987, M. F. Whiting, 3 ♂, 25 ♀. Republic of Korea, Chollanam Province, small village North of Sun-Cheon City [Jeonnam Province, Suncheon City], 12 May 1986, M. F. Whiting, 3 ♂, 12 ♀.	en	Zwick, Peter, Baumann, Richard W. (2011): Nemoura Jejudoensis A New Species Of Stonefly And The Redescription Of Amphinemura Baei Ham And Lee (Plecoptera, Nemouridae) From Jeju Island, Korea. Illiesia 7 (15): 148-155, DOI: http://doi.org/10.5281/zenodo.4760189
