Allocapnia cunninghami 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 : 66

Allocapnia cunninghami Ross & Ricker

( Figs. 79-84 )

Allocapnia cunninghami Ross & Ricker 1971:42 .

Holotype ♂ (Illinois Natural History Survey), [tributary Little Trammel Creek], Turners [Station] , Sumner Co., Tennessee

Material examined. Tennessee: Sumner Co., tributary Little Trammel Creek, Sugar Grove , Hwy 174, 22 February 1999, B.C. Kondratieff, R. F. Kirchner, 5♂, 1♀ ( CSUC). Sumner Co., Little Trammel Creek, Fairfield Rd , 10 March 2012, B. Stark, 3♂ ( BPS).

Male epiproct. Apical segment of upper limb ca. 281 μm long, and armed on the apical ca. 188 μm with dense patch of wave-like spikes ( Figs. 79-82 ); apical segment ca. 106 μm wide at base, slightly constricted near midlength, and expanded to a bluntly rounded tip. Basal segment of upper limb ca. 471 μm long and ca. 56 μm wide at midlength; basal segment bears a wide, shallow, longitudinal groove from base to near midlength. Greatest width of lower limb ca. 163 μm; lateral margins of lower limb bearing a sparse row of long setae near apical spoon.

Male tergal process. Prominent raised bilobed structure on abdominal tergum 8 and a smaller, slightly raised process on tergum 7 ( Figs. 82-84 ). Process on tergum 8 ca. 142 μm wide, covered with scale-like structures, and bearing a shallow, Vshaped notch ( Fig. 83 ); process on tergum 7 ca. 40 μm wide, without scales or notch ( Fig. 84 ).

Figures

Figs. 79-84. Allocapnia cunninghami, tributary Little Trammel Creek, Sumner Co., Tennessee. 79. Male terminalia, dorsal. 80. Apical segment upper limb of epiproct tip, dorsal. 81. Surface detail apical segment upper limb of epiproct, dorsal. 82. 8th tergal process and epiproct tip, lateral. 83. 8th tergal process and epiproct tip, anterodorsal. 84. 7th tergal process, dorsal.