taxonID	type	description	language	source
03C587D9BC76E472CFB1852B808DFE78.taxon	description	http: // lsid. speciesfile. org / urn: lsid: Plecoptera. speciesfile. org: TaxonName: 3649 (Figs. 1 – 12 & 39)	en	Grubbs, Scott A., Baumann, Richard W. (2019): Alloperla clarki sp. nov. (Plecoptera: Chloroperlidae), a new species from the eastern Nearctic with discussion of a new species group. Zootaxa 4624 (2): 241-255, DOI: 10.11646/zootaxa.4624.2.7
03C587D9BC76E472CFB1852B808DFE78.taxon	distribution	Distribution. USA: MD, PA, VA, WV (DeWalt et al. 2018)	en	Grubbs, Scott A., Baumann, Richard W. (2019): Alloperla clarki sp. nov. (Plecoptera: Chloroperlidae), a new species from the eastern Nearctic with discussion of a new species group. Zootaxa 4624 (2): 241-255, DOI: 10.11646/zootaxa.4624.2.7
03C587D9BC76E472CFB1852B808DFE78.taxon	materials_examined	Material examined. USA, Maryland, Allegany Co., Biclic Run, Green Ridge State Forest, 39.66440, - 78.46144, 13 May 1996, S. A. Grubbs, 1 male, 1 female (WKUC); Deep Run, Green Ridge State Forest, 39.65312, - 78.45234, 13 May 1996, S. A. Grubbs, 1 male (WKUC); spring into Fifteenmile Creek, Green Ridge State Forest, 39.67138, - 78.45970, 13 May 1996, S. A. Grubbs, 1 male (WKUC); tributary to Fifteenmile Creek, Cow Hollow, Green Ridge State Forest, 39.69968, - 78.47884, 13 May 1996, S. A. Grubbs, 1 male (WKUC); tributary to Fifteenmile Creek, Little Pine Lick Hollow, Green Ridge State Forest, 39.68344, - 78.47307, 13 May 1996, S. A. Grubbs, 1 male (WKUC); tributary to Fifteenmile Creek, Green Ridge State Forest, 39.68658, - 78.47720, 13 May 1996, S. A. Grubbs, 1 male, 1 female (WKUC); tributary to Fifteenmile Creek, Cow Hollow, Green Ridge State Forest, 39.69910, - 78.47831, 13 May 1996, S. A. Grubbs, 3 males, 2 females (WKUC); tributary to Fifteenmile Creek, White Oak Hollow, Green Ridge State Forest, 39.70665, - 78.48404, 13 May 1996, S. A. Grubbs, 1 male, 1 female (WKUC); tributary to Black Sulphur Run, Green Ridge State Forest, 39.66716, - 78.52963, 18 May 1996, S. A. Grubbs, 7 males, 4 females (WKUC); Black Sulphur Run, Green Ridge State Forest, 39.66614, - 78.49731, 18 May 1996, S. A. Grubbs, 5 males, 2 females (WKUC); spring into Big Run, Green Ridge State Forest, 39.57145, - 78.51005, 18 May 1996, S. A. Grubbs, 3 males, 2 females (WKUC); Big Run, Rte. 51, Green Ridge State Forest, 39.52642, - 78.53212, 18 May 1996, S. A. Grubbs, 17 males, 6 females (WKUC); Big Run, Green Ridge State Forest, 39.57491, - 78.50910, 18 May 1996, S. A. Grubbs, 12 males, 6 females (WKUC); Deep Run, Green Ridge State Forest, 39.65312, - 78.45234, 4 July 1996, S. A. Grubbs, 2 females (WKUC). Pennsylvania, Bedford Co., tributary to Bear Camp Branch, 11 km SSE Chaneysville, Buchanan State Forest, 39.72623, - 78.45226, 14 May 1999, S. A. Grubbs, 1 male, 1 female (WKUC). Virginia, Augusta Co., Calf Pasture River, 10 June 1997, M. F. Whiting, 1 male (BYU); Montgomery Co., Craigs Creek, Route 621, 0.5 miles off Route 460, 29 May 1979, B. C. Kondratieff, 2 males (CHNC); same but 27 June 1979, B. C. Kondratieff, 1 male (RFKC); same but 5 June 1983, B. C. Kondratieff, 3 males, 2 females (BYU); Page Co., Jeremy Run, east of Vaughn, 8 May 2001, M. Terry, 1 male (BYU). Amended description – Male. Tergum 10 divided mesally by epiproct and reduced cowl into two hemitergal lobes; lobes bearing dense matting of long setae (Figs. 1 – 2). Epiproct length (L) 240 µm, maximum width (MW) 47 µm, L: MW ratio = 5.1. In dorsal view the epiproct is widest in basal ⅓, tapering anteriorly to a slightly mediallyexpanded apex (Figs. 1 – 2); dorsal surface covered by dense matting of long hairs in medial ⅓; apical ⅓ is entirely bare; in basal ⅓ there is only a medial line of hairs (Figs. 1 – 4). The apical notch is narrowly triangular in shape and extends anteriorly and ventrally as a groove between paired, serrated apical margins; 5 – 6 distinct teeth are present (Figs. 5 – 8, 10, 12). In lateral view the epiproct is thin basally and gradually broadens apically (Figs. 9, 11); matting is absent basally and along the ventral margins; long hairs deflected laterally are present in medial ½ (Figs. 9, 11); shorter hairs on the apical, serrated portion are present as a medial band (Figs. 10, 12). The stem length is approximately 2 X the length of the apical serrated portion (Figs. 9, 11). Overall, the SEM of the specimens studied herein from Maryland and Virginia are essentially identical in shape and matting patterns to the Virginia population studied in Willett & Stark (2009, their figs. 55 – 60). Adult males (and females) are pale yellow in alcohol. The head lacks any darkened markings. The pronotum has a continuous pale yellow margin and the medial 75 % of the segment is only slightly darker.	en	Grubbs, Scott A., Baumann, Richard W. (2019): Alloperla clarki sp. nov. (Plecoptera: Chloroperlidae), a new species from the eastern Nearctic with discussion of a new species group. Zootaxa 4624 (2): 241-255, DOI: 10.11646/zootaxa.4624.2.7
03C587D9BC76E472CFB1852B808DFE78.taxon	discussion	Comments. Reexamination of a specimen designated as a paratype produced an unexpected result. The male collected from “ … confluence of Straley Branch with Poverty Creek off County Route 708, Montgomery Co., Virginia, Jefferson National Forest, altitude 630 m, 17 June 1978 ” (Nelson & Kondratieff 1980, see pg. 802) is actually of A. stipitata. Alloperla biserrata occupies a relatively narrow latitudinal and longitudinal band in the southern and central Appalachian Mountains (Fig. 39). Amongst the four members of the Alloperla nanina Group, this species is the only one known northward to Maryland and southern Pennsylvania.	en	Grubbs, Scott A., Baumann, Richard W. (2019): Alloperla clarki sp. nov. (Plecoptera: Chloroperlidae), a new species from the eastern Nearctic with discussion of a new species group. Zootaxa 4624 (2): 241-255, DOI: 10.11646/zootaxa.4624.2.7
03C587D9BC73E471CFB1836B80F3FE78.taxon	vernacular_names	Swannanoa Sallfly	en	Grubbs, Scott A., Baumann, Richard W. (2019): Alloperla clarki sp. nov. (Plecoptera: Chloroperlidae), a new species from the eastern Nearctic with discussion of a new species group. Zootaxa 4624 (2): 241-255, DOI: 10.11646/zootaxa.4624.2.7
03C587D9BC73E471CFB1836B80F3FE78.taxon	description	http: // lsid. speciesfile. org / urn: lsid: Plecoptera. speciesfile. org: TaxonName: 3622 (Figs. 13 – 22 & 39)	en	Grubbs, Scott A., Baumann, Richard W. (2019): Alloperla clarki sp. nov. (Plecoptera: Chloroperlidae), a new species from the eastern Nearctic with discussion of a new species group. Zootaxa 4624 (2): 241-255, DOI: 10.11646/zootaxa.4624.2.7
03C587D9BC73E471CFB1836B80F3FE78.taxon	distribution	Distribution. USA: GA, NC, TN, VA (DeWalt et al. 2018), SC (Kondratieff et al. 1995, Surdick 2004)	en	Grubbs, Scott A., Baumann, Richard W. (2019): Alloperla clarki sp. nov. (Plecoptera: Chloroperlidae), a new species from the eastern Nearctic with discussion of a new species group. Zootaxa 4624 (2): 241-255, DOI: 10.11646/zootaxa.4624.2.7
03C587D9BC73E471CFB1836B80F3FE78.taxon	materials_examined	Material examined. USA, Georgia, Gilmer Co., Conasauga Creek, 16 km NW Elijay, Chattahoochee National Forest, 34.79495, - 84.60325, 11 June 2016, S. A. Grubbs, 1 female (WKUC); Murray Co., tributary to Holly Creek, Chattahoochee National Forest, 34.81990, - 84.59228, 11 June 2016, S. A. Grubbs, 2 females (WKUC). North Carolina, Graham Co., seep into Panther Creek, Panther Creek Rd. off Rt. 28, 26 May 1993, 1 male, C. H. Nelson, B. C. Kondratieff & R. F. Kirchner (CHNC); Haywood Co., Flat Laurel Creek, ALS- 63 - 14, 35.32434, - 82.89611, 23 May 2014, A. L. Sheldon, 1 male (WKUC); Haywood Gap Stream, Trail 142, ALS- 67 - 14, 35.32797, - 82.94373, 24 May 2014, A. L. Sheldon, 1 male (WKUC); tributary to Flat Laurel Creek, TR 617, Pisgah National Forest, ALS- 35 - 15, 35.32303, - 82.89282, 22 July 2015, A. L. Sheldon, 1 female (WKUC); Macon Co., tributary to Cullasaja River, U. S. 64 / Rte. 28, 13 km SE Franklin, Nantahala National Forest, 35.08001, - 83.25452, 12 May 2000, S. A. Grubbs, 1 male (WKUC); Wallace Branch, Cartoogechaye Creek, 4 km W Franklin, Nantahala National Forest, 35.18075, - 83.43392, 13 May 2000, S. A. Grubbs, 2 males, 3 females (WKUC); Wine Spring Creek, nr. FS 711 F, ALS- 80 - 14, 35.17912, - 83.59789, 28 May 2014, A. L. Sheldon, 1 male, 1 female (WKUC); Macon Co., Robin Branch, Wayah Bald, 13 June 1996, B. P. Stark, 1 male (BPSC); Robin Branch, Wayah Bald, 9 June 1998, J. Wise, J. Carter, J. Beaty & D. Beaty, 1 male (BPSC); Watauga / Caldwell Co. line, Hwy 221, 25 May 1994, B. P. Stark, S. W. Szczytko & J. Sandberg, 1 male (BPSC); Swain Co., small sinking stream, US 441 at parking lot, near Newfound Gap, Great Smoky Mountains National Park, 35.60775, - 83.43703, 1 June 2015, S. A. Grubbs, 1 male (WKUC); Yancey Co., Hemphill Creek, FS 472, ALS- 50 - 14, 35.71024, - 82.25057, 20 May 2014, A. L. Sheldon, 1 male (WKUC). South Carolina, Pickens Co., Wildcat Creek, 5.5 mi NW of Clemson, 24 April 1968, P. H. Carlson, 1 male, 1 female (BPSC); Wildcat Creek, 9 km NW Clemson, 6 May 1976, P. H. Carlson, 1 female (BPSC); Wildcat Creek, 14 May 1976, P. H. Carlson, 1 female (BPSC); Wildcat Creek, 9 km NW Clemson, 5 - 6 May 1979, T. R. White, 1 male, 2 females (BPSC). Tennessee, Polk Co., Rock Creek, Parksville Lake Campground, Rt 30, 0.5 mi N Jct 30 / 64, Cherokee National Forest, 13 May 1985, C. H. Nelson, 5 males, 3 females (CHNC). Virginia, Smyth Co., Saint Claire Bottom, Route 600, 19 May 1990, B. C. Kondratieff & R. F. Kirchner, 3 males (CSUC); Grindstone Campground, Mt. Rogers National Recreational Area, 24 May 1994, B. P. Stark, S. W. Szczytko & J. Sandberg, 1 male (BPSC).	en	Grubbs, Scott A., Baumann, Richard W. (2019): Alloperla clarki sp. nov. (Plecoptera: Chloroperlidae), a new species from the eastern Nearctic with discussion of a new species group. Zootaxa 4624 (2): 241-255, DOI: 10.11646/zootaxa.4624.2.7
03C587D9BC73E471CFB1836B80F3FE78.taxon	description	Amended description – Male. Tergum 10 divided mesally by epiproct and reduced cowl into two hemitergal lobes; lobes bearing dense matting of long setae (Figs. 13 – 15). Epiproct length (L) 125 µm, maximum width (MW) 40 µm, L: MW ratio = 3.2. In dorsal view the epiproct is widest in basal ⅓, tapering anteriorly and distally. The entire dorsal surface is bare (Figs. 14 – 17). The apical notch is narrowly triangular and extends anteriorly and ventrally as a groove between paired, serrated apical margins (Figs. 15 – 18); 10 distinct teeth are present (Figs. 17, 21 – 22); the serrated apex is arcuate ventrally (Figs. 19 – 22). The epiproct stem is secondarily reduced and nearly absent; the serrated portion comprises the entire lateral profile (Figs. 19 – 22). Dense hair matting is also absent laterally; a sparse group of long hairs are present in medial ⅓ (Figs. 20 – 22). The adults of A. nanina are unusual amongst eastern Nearctic Alloperla species in that the pronotum has a charcoal gray pigmentation within the medial 75 % of the segment (the entire margin is pale yellow in color), the mesonotal and metanotal scutellar margins are darkly pigmented, and the abdomen has darkened medial and lateral stripes (Surdick 2004, Grubbs & Singai 2018, their fig. 15).	en	Grubbs, Scott A., Baumann, Richard W. (2019): Alloperla clarki sp. nov. (Plecoptera: Chloroperlidae), a new species from the eastern Nearctic with discussion of a new species group. Zootaxa 4624 (2): 241-255, DOI: 10.11646/zootaxa.4624.2.7
03C587D9BC73E471CFB1836B80F3FE78.taxon	discussion	Comments. The taxonomic histories of A. banksi Frison, 1942 and A. nanina are intertwined. As was customary at the time, the original Banks (1911) description lacked illustrations. He indicated that individuals were small, the pronotum was darkly pigmented, plus this species was then only known from the type locality in western North Carolina. Although Needham & Claassen (1925) attempted to provide the first illustrations of the male of A. nanina (their plate 20, fig. 3), this unintentionally represented an undescribed species. They noted variability at the tip of the epiproct, namely as “ … sharply-pointed and smooth … ” or “ … bilobed … ” and added that this did not justify differentiation into separate species. Several additional locality records were also added from New York and Nova Scotia. Soon thereafter, Frison (1935) mistakenly described A. lodgei as new from Gatlinburg, Tennessee, providing several illustrations, especially his plates XIII (his fig. 25) and XIV (his fig. 36) that now are easily recognized as A. nanina. Frison (1942) recognized the Needham & Claassen (1925) mistake, described A. banksi from New York, and synonymized A. lodgei under A. nanina. Surdick (2004) has likewise provided a brief taxonomic history. The New York listing in DeWalt et al. (2018) now pertains to A. banksi. Alloperla nanina appears to be a species endemic mainly to the southern Appalachian Highlands region (Fig. 39).	en	Grubbs, Scott A., Baumann, Richard W. (2019): Alloperla clarki sp. nov. (Plecoptera: Chloroperlidae), a new species from the eastern Nearctic with discussion of a new species group. Zootaxa 4624 (2): 241-255, DOI: 10.11646/zootaxa.4624.2.7
03C587D9BC70E471CFB1836B811BF99F.taxon	description	http: // lsid. speciesfile. org / urn: lsid: Plecoptera. speciesfile. org: TaxonName: 3654 (Figs. 23 – 30 & 40)	en	Grubbs, Scott A., Baumann, Richard W. (2019): Alloperla clarki sp. nov. (Plecoptera: Chloroperlidae), a new species from the eastern Nearctic with discussion of a new species group. Zootaxa 4624 (2): 241-255, DOI: 10.11646/zootaxa.4624.2.7
03C587D9BC70E471CFB1836B811BF99F.taxon	distribution	Distribution. USA: VA (DeWalt et al. 2018)	en	Grubbs, Scott A., Baumann, Richard W. (2019): Alloperla clarki sp. nov. (Plecoptera: Chloroperlidae), a new species from the eastern Nearctic with discussion of a new species group. Zootaxa 4624 (2): 241-255, DOI: 10.11646/zootaxa.4624.2.7
03C587D9BC70E471CFB1836B811BF99F.taxon	materials_examined	Material examined. USA, Virginia, Bland Co., Kumberling Creek, Sulphur Springs Creek, 18 May 2017, B. C Kondratieff & C. Verdone, 3 males (CSUC); Botetourt Co., spring fed stream, Blue Ridge Parkway, 31 May 2016, B. C Kondratieff & C. Verdone, 1 male (CSUC); Greene Co., Fork Hollow, Ranger Station, nr. Simmons Gap, Shenandoah National Park, 3 June 2016, B. C Kondratieff & C. Verdone, 3 males (CSUC); Montgomery Co., Poverty Creek, Poverty Hollow, Rt 708, 0.5 miles from Rt 460, 17 June 1978, 1 male, B. C. Kondratieff (CHNC – A. biserrata paratype). Amended description – Male. Tergum 10 divided mesally by epiproct and reduced cowl into two hemitergal lobes; lobes bearing dense matting of long setae (Figs. 23 – 24). Epiproct length (L) 150 µm, maximum width (MW) 62 µm, L: MW ratio = 2.4. In dorsal view the epiproct is widest in medial ½, tapering both anteriorly and distally (Figs. 23 – 24). The dorsal surface is covered by a dense matting of long hairs except for the anterior 1 / 5, which is entirely bare (Figs. 23 – 26). The apical notch is subtriangular and extends anteriorly and ventrally as a groove between paired, serrated apical margins (Figs. 25 – 28); 5 distinct teeth are present (Figs. 29 – 30); the serrated apex is linear ventrally (Figs. 29 – 30). In lateral view the epiproct is broadest medially (Fig. 29). The stem is slightly longer than the serrated apex and covered by a dense matting of long hairs except for a narrow bare band laterally near the hinge (Fig. 29). The lateral portion of the serrated apex is bare except for a single line of 5 – 6 hairs plus a few additional accessory hairs (Fig. 30). Adult males (and females) are pale yellow in alcohol. The head lacks any darkened markings. The pronotum has a continuous pale yellow margin and the medial 75 % of the segment is only slightly darker.	en	Grubbs, Scott A., Baumann, Richard W. (2019): Alloperla clarki sp. nov. (Plecoptera: Chloroperlidae), a new species from the eastern Nearctic with discussion of a new species group. Zootaxa 4624 (2): 241-255, DOI: 10.11646/zootaxa.4624.2.7
03C587D9BC70E471CFB1836B811BF99F.taxon	discussion	Comments. Alloperla stipitata is known only from Virginia (Fig. 40), with many recent locality records provided by Dr. Boris Kondratieff (CSUIC) as by-catch specimens to three species studied in detail in Verdone & Kondratieff (2017). This species may be distributed further northward along the Blue Ridge Mountains through Maryland to southern Pennsylvania.	en	Grubbs, Scott A., Baumann, Richard W. (2019): Alloperla clarki sp. nov. (Plecoptera: Chloroperlidae), a new species from the eastern Nearctic with discussion of a new species group. Zootaxa 4624 (2): 241-255, DOI: 10.11646/zootaxa.4624.2.7
03C587D9BC70E47ECFB187F08116F984.taxon	description	(Figs. 31 – 38 & 40) Description. Male body length 5.5 – 6.0 mm, forewing length 6.5 – 7.0 mm (n = 2). General color in life unknown, pale yellow in alcohol. Head, thorax, and abdomen lacking darkened markings or margins. Lateral pectens present on abdominal segments 8 and 9. Wings macropterous and hyaline. Male (Figs. 31 – 38). Tergum 10 divided mesally by epiproct and reduced cowl into two hemitergal lobes; lobes covered by a dense matting of long setae (Figs. 31 – 32). Epiproct length (L) 175 µm, maximum width (MW) 56 µm, L: MW ratio = 3.1. In dorsal view the epiproct is widest in medial ½, tapering both anteriorly and distally (Figs. 31 – 32). The dorsal surface is covered by a dense matting of long hairs except for the anterior 1 / 5, which is entirely bare (Figs. 31 – 32). The apical notch is subtriangular and extends anteriorly and ventrally as a groove between paired, serrated apical margins (Figs. 33 – 36); 8 – 9 distinct teeth are present (Figs. 35 – 38); the serrated apex is broadly arcuate ventrally (Figs. 37 – 38). In lateral view the epiproct stem is broadest basally (Fig. 37). The stem is slightly longer than the serrated apex and covered by a dense matting of long hairs except for a narrow bare band laterally near the hinge (Fig. 37). The lateral portion of the serrated apex is bare except for a single line of 5 – 6 hairs plus a few additional accessory hairs (Fig. 38). Female. Unknown. Egg. Unknown. Larva. Unknown.	en	Grubbs, Scott A., Baumann, Richard W. (2019): Alloperla clarki sp. nov. (Plecoptera: Chloroperlidae), a new species from the eastern Nearctic with discussion of a new species group. Zootaxa 4624 (2): 241-255, DOI: 10.11646/zootaxa.4624.2.7
03C587D9BC70E47ECFB187F08116F984.taxon	materials_examined	Type material. Holotype male (BYU): USA, West Virginia, Greenbrier Co., Onemile Run, jct. North Fork Anthony Creek, 3 mi N Neola, 37.97941 - 80.13596, 21 May 1990, R. W. Baumann & S. M. Clark. Paratypes: Virginia, Montgomery Co., Craigs Creek, Route 621, 0.5 miles off Route 460, 29 May 1979, B. C. Kondratieff, 3 males (CHNC), West Virginia, Greenbrier Co., headwaters of Little Creek, Rt. 16, 15 mi NW of White Sulphur Springs, 38.02371, - 80.16601, 21 May 1990, R. W. Baumann & S. M. Clark, 2 males (BYU).	en	Grubbs, Scott A., Baumann, Richard W. (2019): Alloperla clarki sp. nov. (Plecoptera: Chloroperlidae), a new species from the eastern Nearctic with discussion of a new species group. Zootaxa 4624 (2): 241-255, DOI: 10.11646/zootaxa.4624.2.7
03C587D9BC70E47ECFB187F08116F984.taxon	etymology	Etymology. This species is named for Dr. Shawn Clark, Entomology Collections Manager at the Monte L. Bean Museum, Brigham Young University. His collecting efforts during the 1990 s helped form the backbone of an Atlas on Ohio Plecoptera (DeWalt et al. 2016) and are likewise critical for the current development on an Atlas on West Virginia Plecoptera. The common name “ Clark Sallfly ” is proposed for this species (Stark et al. 2012).	en	Grubbs, Scott A., Baumann, Richard W. (2019): Alloperla clarki sp. nov. (Plecoptera: Chloroperlidae), a new species from the eastern Nearctic with discussion of a new species group. Zootaxa 4624 (2): 241-255, DOI: 10.11646/zootaxa.4624.2.7
03C587D9BC70E47ECFB187F08116F984.taxon	diagnosis	Diagnosis. Alloperla clarki sp. nov. is readily differentiated from A. nanina by the presence of the epiproct stem. The stem is distinct on A. clarki sp. nov. (Fig. 37) and secondarily reduced for A. nanina (Fig. 21). This is easily deciphered with standard light microscopy. Although seen most easily on SEM micrographs, the secondary loss of dense hair matting on both the epiproct stem and apical serrated margin of A. nanina (Figs. 19 – 22) is easily contrasted from A. clarki sp. nov. (Figs. 32, 37). For A. clarki sp. nov., the only portion of the epiproct lacking matting is dorsoapical surface, the ventral serrated margins, and thin lateral areas near the hinge (Figs. 37 – 38). Alloperla clarki sp. nov. can also be differentiated from A. biserrata by characteristics of the epiproct. For A. biserrata the ratio of total epiproct length to maximum width is 5.1 (Fig. 11) compared to 3.1 for A. clarki sp. nov. (Fig. 37). In lateral view the epiproct stem of A. biserrata has a narrower profile basally (Fig. 9) compared to A. clarki sp. nov. (Fig. 37). In addition, A. biserrata has a larger glabrous area near the epiproct hinge (Figs. 9, 11) compared to A. clarki sp. nov. (Fig. 37).	en	Grubbs, Scott A., Baumann, Richard W. (2019): Alloperla clarki sp. nov. (Plecoptera: Chloroperlidae), a new species from the eastern Nearctic with discussion of a new species group. Zootaxa 4624 (2): 241-255, DOI: 10.11646/zootaxa.4624.2.7
03C587D9BC70E47ECFB187F08116F984.taxon	description	Alloperla clarki sp. nov. is morphologically similar to A. stipitata but there are three diagnostic, albeit subtle, differences on the epiproct. First, 5 - 6 distinct teeth are present on the apical serrated margin of A. stipitata (Figs. 28 – 30). This is contrasted from the 8 - 9 teeth present on A. clarki sp. nov. (Figs. 35 – 36, 38). Second, the ventral serrated margin of A. stipitata is positioned essentially along one linear, ventral plane (Figs. 29 – 30) compared to the ventral arcuate shape of A. clarki sp. nov. (Figs. 37 – 38). Third, there is a difference in the total length to maximum width ratio (2.4: A. stipitata vs. 3.1: A. clarki sp. nov.) between the two species.	en	Grubbs, Scott A., Baumann, Richard W. (2019): Alloperla clarki sp. nov. (Plecoptera: Chloroperlidae), a new species from the eastern Nearctic with discussion of a new species group. Zootaxa 4624 (2): 241-255, DOI: 10.11646/zootaxa.4624.2.7
03C587D9BC70E47ECFB187F08116F984.taxon	discussion	Remarks. The type locality and the two paratype sites are positioned in southern West Virginia and adjacent southwestern Virginia in EPA Level III Ecoregion 67 (Ridge and Valley; Fig. 40). Twelve and nine Alloperla species are now known from Virginia and West Virginia, respectively (DeWalt et al. 2018). A collecting effort in early June 2018 to the two West Virginia streams noted above and the vicinity in general failed to produce fresh material of A. clarki sp. nov. for additional study.	en	Grubbs, Scott A., Baumann, Richard W. (2019): Alloperla clarki sp. nov. (Plecoptera: Chloroperlidae), a new species from the eastern Nearctic with discussion of a new species group. Zootaxa 4624 (2): 241-255, DOI: 10.11646/zootaxa.4624.2.7
