Allocapnia perplexa Ross & Ricker, 1971

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 : 69

Allocapnia perplexa Ross & Ricker

( Figs. 91-96 )

Allocapnia perplexa Ross & Ricker 1971:44 .

Holotype ♂ (Illinois Natural History Survey), Five miles S Bransford, [East Fork Bledsoe Creek, Hwy 231 ], Trousdale Co., Tennessee

Allocapnia perplexa: Kirchner et al., 2002:332 . SEM ♂ epiproct

Material examined. Tennessee: Sumner Co., East Fork Bledsoe Creek, Old Hopewell Rd , 1 March 2001, B.C. Kondratieff, R. F. Kirchner, 2♂ ( BPS) .

Male epiproct. Apical segment upper limb of epiproct ca. 219 μm long and armed over the apical ca. 236 μm with wave- like spikes; apical segment ca. 203 μm wide across basal ear- like projections, and tapered to 89 μm wide at the tip ( Figs. 91-93 ). Basal segment ca. 294 μm long and ca. 157 μm wide at midlength; basal section with a few grooves on dorsal surface and a few obscure, ventrolateral spines ( Fig. 94 ). Lower limb not visible from dorsal aspect.

Male tergal process. Prominent raised, bilobed structure on abdominal tergum 8 ( Figs. 94-96 ); processs ca. 224 μm wide and deeply notched; notch width ca. 92 μm. Process covered with scale- like structures.

Figures

Figs. 91-96. Allocapnia perplexa, East Fork Bledsoe Creek, Sumner Co., Tennessee. 91. Male terminalia, dorsal. 92. Apical segment upper limb of epiproct tip, dorsal. 93. Surface detail apical segment upper limb of epiproct, dorsal. 94. 8th tergal process and epiproct tip, lateral. 95. 8th tergal process and epiproct tip, dorsal. 96. 8th tergal process, anterodorsal.