Soyedina calcarea Grubbs, 2006

Grubbs, Scott A. & Baumann, Richard W., 2023, The Nemourinae (Insecta, Nemouridae) of the eastern Nearctic, Zootaxa 5306 (1), pp. 1-53 : 34-35

16. Soyedina calcarea Grubbs, 2006

Karst Forestfly

http://lsid.speciesfile.org/urn:lsid: Plecoptera .speciesfile.org:TaxonName:6059

( Figs. 7 , 109–114 )

Soyedina calcarea Grubbs 2006:43 . Holotype male (Illinois Natural History Survey ), small spring-fed stream, 7.5 km NW Bonnieville, Hart Co., Kentucky, USA

Soyedina calcarea Grubbs & Baumann, 2019:227

Distribution. USA: KY ( DeWalt et al. 2022)

Male. Macropterous. Body length 4.8–5.7 mm, forewing length 6.8–7.6 mm (n = 7). Gills absent. Cerci simple and unmodified. Paraprocts with two lobes, inner lobes lightly sclerotized and inconspicuous, outer lobes sclerotized, in basal half bulbous, slightly tapered apically, concave along dorsal margin ( Fig. 113 ). Epiproct asymmetric, typical for genus ( Fig. 109 ); ventral sclerites partially recurved over abdomen, distinctly asymmetric, apically narrowly triangular ( Fig. 109 ); dorsal sclerites distinctly asymmetric, appearing scaly at higher magnifications ( Figs. 110‒ 112 ); open apically, inner member heavily sclerotized, flanged apically, lip asymmetric with apical half longer than basal portion ( Figs. 110‒111 ).

Female. Macropterous. Body length 6.1–6.5 mm, forewing length 8.0– 8.9 mm (n = 4). 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. 114 ).

Larva. Undescribed.

Comments. Soyedina calcarea is currently known only from the Mammoth Cave region of central Kentucky, USA ( Grubbs & Baumann 2019, McRoberts & Grubbs 2021).

Figures

FIGURES 1‒8. Forewing images. 1, Nemoura arctica, USA, Michigan, Silver Creek; 2, Ostrocerca albidipennis, USA, West Virginia, Middle Fork Indian Run; 3, Paranemoura perfecta, USA, West Virginia, headwaters Sugar Creek; 4, Podmosta macdunnoughi, USA, New York, Grampus Brook, dark line at tips of arrows represent the termini of veins A1 and A2; 5, Prostoia completa, USA, Kentucky, Middle Fork Drakes Creek; 6, Shipsa rotunda, USA, Michigan, Montreal River; 7, Soyedina calcarea, USA, Kentucky, tributary Green River; 8, Zapada katahdin, Canada, Labrador, tributary Leg Lake.

FIGURES 109‒114. Soyedina calcarea. 109, USA, Kentucky, springhead to Wet Prong, epiproct, ventral view; 110, USA, Kentucky, springhead to Wet Prong, epiproct, ventral view; 111, USA, Kentucky, springhead to Wet Prong, epiproct, lateral view; 112, USA, Kentucky, springhead to Wet Prong, epiproct, caudal view; 113, USA, Kentucky, tributary to Green River, outer paraproct lobe, lateral view; 114, USA, Kentucky, tributary to Green River, female abdominal terminalia, ventral view. ds = dorsal sclerite, im = inner member, vs = ventral sclerite.