Allocapnia curiosa Frison, 1942

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 : 47

Allocapnia curiosa Frison

( Figs. 1-6 )

Allocapnia curiosa Frison 1942:268 .

Holotype ♂ (Illinois Natural History Survey), Kanetown [Preston Co.], West Virginia

Allocapnia curiosa: Ross & Ricker, 1971:39.

Material examined. Kentucky: Jackson Co., Peter Branch Middle Fork Rockcastle River, below Robinson Creek , 10 February 1998, B.C. Kondratieff, R.K. Kirchner , 9♂, 1♀ ( CSUC) . Virginia: Tazewell Co., East Fork Cove Creek, Rt. 662, 15 February 1982, B.C. Kondratieff, 2♂ ( CSUC) . West Virginia: Mercer Co., Camp Creek , I-77, 26 February 1999, B.C. Kondratieff, R. F. Kirchner, 5♂, 1♀ ( CSUC). Pocahontas Co., Hills Creek Falls , Hills Creek Scenic Area , Hwy 39, 16 March 1980, R.F. Kirchner, R.M. Meyer, 3♂ ( BPS).

Male epiproct. Apical segment of upper limb ca. 210- 215 μm long, bearing a pair of basolateral ear- like projections and a dense median patch of wave-like spikes ( Figs. 1-3 ). Median spike patch ca. 187-194 μm long and narrowly divided along entire length by groove, ear-like projections without spikes; apical segment ca. 138-146 μm wide across ear- like projections and narrowed to ca. 60 μm at apex. Basal segment of upper limb ca. 283 μm long and ca. 85-94 μm wide for most of length. Lateral areas of basal segment bearing irregular row of setae and a median groove but otherwise unadorned. Lower limb ca. 167-175 μm wide proximal to apical spoon.

Male tergal process. Prominent raised structures on abdominal terga 7 and 8 ( Figs. 1, 4-6 ). Process of tergum 7 conical, apex covered with scale-like structures; process of tergum 8 thin, narrowly notched, lobes bent slightly forward in lateral aspect and covered dorsally with scale-like structures; width of tergum 8 process ca. 177 μm. Anterior face of tergum 8 process bearing a low, rounded, median knob.

Figures

Figs. 1-6. Allocapnia curiosa, Hills Creek Falls, Pocahontas Co., West Virginia. 1. Male terminalia, dorsal. 2. Apical segment upper limb of epiproct tip, dorsal. 3. Surface detail apical segment upper limb of epiproct, dorsal. 4. Male terminalia, lateral. 5. Abdominal tergal lobes, dorsal. 6. Abdominal tergal lobes, anterodorsal.