Allocapnia frumi Kirchner, 1982

Stark, Bill P. & Kondratieff, Boris C., 2012, Epiproct And Dorsal Process Structure In The Allocapnia Forbesi Frison, A. Pygmaea (Burmeister), And A. Rickeri Frison Species Groups (Plecoptera: Capniidae), And Inclusion Of A. Minima (Newport) In A New Species Group, Illiesia 8 (5), pp. 45-77 : 50

Allocapnia frumi Kirchner

( Figs. 13-18 )

Allocapnia frumi Kirchner 1982:786 .

Holotype ♂ (United States National Museum of Natural History), Coats Run of North Fork Cherry River , Greenbrier Co., West Virginia

Material examined. West Virginia: Pocahontas Co., Sugar Creek at Williams River , 28 March 1982, R. F. Kirchner, V. J. Marchese, 2♂ ( CSUC) .

Male epiproct. Apical segment of upper limb ca. 287 μm long, bearing a pair of dorsolateral ear- like projections and a dense median patch of wave-like spikes ( Figs. 13-16 ). Median spike patch ca. 230 μm long and divided along entire length by narrow groove, spikes absent on ear-like projections and basal dorsolateral bulges ( Fig. 14 ). Apical segment ca. 147 μm wide across ear- like projections, and narrowed to ca. 29 μm at apex ( Fig. 14 ). Basal segment of upper limb ca. 280 μm long and ca. 100 μm wide for most of length; setation and dorsal longitudinal groove absent from basal segment. Lower limb ca. 200 μm wide proximal to apical spoon.

Male tergal process. Prominent raised structures on abdominal terga 7 and 8 ( Figs. 15, 17-18 ). Process of tergum 7 thin in lateral aspect, forming a triangular projection in anterodorsal aspect, covered over much of surface with scale-like structures ( Figs. 17-18 ). Process of tergum 8 thin in lateral aspect ( Fig. 15 ) and tapered to a slightly concave dorsal surface in anterodorsal aspect; dorsum of process covered with a narrow strip of scale-like structures; width of process ca. 176 μm.

Figures

Figs. 13-18. Allocapnia frumi, Sugar Creek, Pocahontas Co., West Virginia. 13. Male terminalia, dorsal. 14. Apical segment upper limb of epiproct, dorsal. 15. Apical segment upper limb of epiproct and 8th tergal process, lateral. 16. Surface detail apical segment upper limb of epiproct, dorsal. 17. Abdominal tergal lobes, dorsal. 18. Abdominal tergal lobes, anterodorsal.