The Nemourinae (Insecta, Nemouridae) of the eastern Nearctic Author Grubbs, Scott A. 0000-0003-2170-9716 Department of Biology and Center for Biodiversity Studies, Western Kentucky University, Bowling Green, Kentucky, 42101, USA Department of Biology and Monte L. Bean Life Science Museum, Brigham Young University, Provo, Utah, 84602, USA & scott. grubbs @ wku. edu; https: // orcid. org / 0000 - 0003 - 2170 - 9716 scott.grubbs@wku.edu Author Baumann, Richard W. 0000-0003-0838-4080 richard _ baumann @ byu. edu; https: // orcid. org / 0000 - 0003 - 0838 - 4080 richard_baumann@byu.edu text Zootaxa 2023 2023-06-19 5306 1 1 53 http://dx.doi.org/10.11646/zootaxa.5306.1.1 journal article 56121 10.11646/zootaxa.5306.1.1 a81c4131-079c-4d9f-8333-70c0de3fb44e 1175-5326 8054287 21AD4F85-E313-47CB-BA98-9896D2B1DC05 7. Paranemoura perfecta ( Walker, 1852 ) Spotted Forestfly http://lsid.speciesfile.org/urn:lsid: Plecoptera .speciesfile.org:TaxonName:6128 ( Figs. 3 , 49‒54 ) Nemoura perfecta Walker 1852:191 . Holotype male (British Museum of Natural History), Redman, Nova Scotia , Canada Nemoura punctipennis : Claassen, 1923:291 . Syn. Illies, 1966:218 Nemoura punctipennis : Needham & Claassen, 1925:221 Nemoura perfecta : Claassen, 1940:61 Nemoura ( Paranemoura ) perfecta : Ricker, 1952:41 Paranemoura perfecta : Illies, 1966:218 Nemoura ( Paranemoura ) perfecta : Harper & Hynes, 1971:1137 Paranemoura perfecta : Zwick, 1973:345 Nemoura ( Paranemoura ) perfecta : Hitchcock, 1974:103 Paranemoura perfecta : Baumann, 1975:54 , 64 (in part), 66 (in part) Paranemoura perfecta : Stewart & Stark, 1988:176 Paranemoura perfecta : Baumann, 1996:818 Paranemoura perfecta : Stark et al. , 1998:119 Paranemoura perfecta : Stewart & Stark, 2002:203 Distribution. Canada : NB, NS, ON, PE, PQ. USA : CT, MA, MD, ME, MI, NC, NH, NY, PA, TN, VA, VT, WV ( DeWalt et al. 2022 ) Male. Macropterous. Body length 4.8–5.7 mm , forewing length 5.0– 5.5 mm (n = 11) Gills absent. Cerci simple and unmodified ( Figs. 49‒51 ). Paraprocts undivided and broad, roughly triangular in shape. Epiproct ventral sclerite fully recurved over abdomen ( Figs. 49‒50 ), ca. parallel-sided and longitudinally split into halves for ca. ⅔ length by the dorsal sclerite ( Figs. 50‒52 ), basolateral margins gently rounded and sparsely covered by small spinules, notch lacking ( Figs. 49‒50 ), anteriorly tapered to a narrow, parallel-sided rounded apex ( Fig. 52 ); posteriorly-directed epihooks of dorsal sclerite smooth and acute ( Figs. 49‒50 ). Female. Macropterous. Body length 5.1–6.1 mm , forewing length 5.0– 6.4 mm (n = 8). Gills absent. Cerci simple and unmodified ( Figs. 53‒54 ). The 8 th sternum is medially concave and not produced distally, Y-sclerite open along posterior margin ( Figs. 53‒54 ); 7 th sternum is unsclerotized, with a short rounded medial projection extending ¼‒½ over the 8 th sternum ( Figs. 53‒54 ). Larva. The description by Harper & Hynes (1971) from southern Quebec and partial illustration in Baumann (1975) may refer to P. claasseni . Comments. Paranemoura perfecta overlaps with P. claasseni in the northeastern Nearctic but has a much broader distribution, extending westward across southern Ontario to Michigan’s Upper Peninsula ( Grubbs et al. 2012 ) and southward through the Appalachian Mountains to Tennessee and North Carolina ( DeWalt et al. 2022 ).