Soyedina kondratieffi Baumann & Grubbs, 1996

Grubbs, Scott A. & Baumann, Richard W., 2023, The Nemourinae (Insecta, Nemouridae) of the eastern Nearctic, Zootaxa 5306 (1), pp. 1-53 : 36-38

18. Soyedina kondratieffi Baumann & Grubbs, 1996

Southeastern Forestfly

http://lsid.speciesfile.org/urn:lsid: Plecoptera .speciesfile.org:TaxonName:6061

( Figs. 123–128 )

Soyedina kondratieffi Baumann & Grubbs 1996:220 . Holotype male (United States National Museum), upper Ball Creek , Coweeta Hydrologic Laboratory, Macon Co., North Carolina, USA

Soyedina kondratieffi Grubbs & Baumann, 2019:238

Distribution. USA: MD, NC, TN, VA ( DeWalt et al. 2022)

Male. Macropterous. Body length 4.6–5.5 mm, forewing length 5.0– 7.3 mm (n = 6). Gills absent. Cerci simple and unmodified. Paraprocts with two lobes, inner lobes lightly sclerotized and inconspicuous, outer lobes sclerotized, in basal half only slight bulbous, slightly tapered apically to a distinct, anteriorly-directed spur ( Fig. 127 ). Epiproct only slightly asymmetric, atypical for genus ( Fig. 123 ); ventral sclerite partially recurved over abdomen, only slightly asymmetric, apically narrowly triangular ( Fig. 123 ); dorsal sclerites also only slightly asymmetric, appearing scaly at higher magnifications ( Figs. 124‒126 ); open apically, inner member heavily sclerotized, split apically into paired, concave inner epiproct members ( Figs. 124, 126 ).

Female. Macropterous. Body length 5.7–6.5 mm, forewing length 7.8–8.4 mm (n = 9). Gills absent. Cerci simple and unmodified. Subgenital plate well-developed, subtriangular in shape; base broad, extending from posterior of seventh sternum entirely over eighth sternum and approximately ¼ over ninth sternum; terminating in broadly-rounded apex ( Fig. 128 ).

Larva. Undescribed.

Comments. Soyedina kondratieffi is currently known from small, disjunct geographic areas in western Maryland, western North Carolina, east Tennessee, and southwestern Virginia ( Grubbs & Baumann 2019).

Figures

FIGURES 123‒128. Soyedina kondratieffi. 123, USA, North Carolina, Ball Creek, epiproct, ventral view; 124, USA, Maryland, Mill Run, epiproct apex, ventral view; 125, USA, North Carolina, Ball Creek; epiproct, lateral view; 126, epiproct, caudal view; 127, USA, North Carolina, Ball Creek, outer paraproct lobe, lateral view. 128, USA, Maryland, spring into Dry Run, female, abdominal terminalia, ventral view. c = cercus, ds = dorsal sclerite, im = inner member, vs = ventral sclerite.