Stonefly Species Allocapnia ohioensis (Little Snowflies)

Source: Epiproct And Dorsal Process Structure In The Allocapnia Forbesi Frison, Allocapnia Pygmaea (Burmeister), And Allocapnia Rickeri Frison Species Groups (Plecoptera: Capniidae), And Inclusion Of Allocapnia Minima (Newport) In A New Species Group

Male epiproct. Apical segment of upper limb ca. 316 - 322 µm long, armed on apical ca. 155 - 172 µm with dense patch of wave-like spikes (Figs. 61 - 63); apical segment ca. 120 - 148 µm wide at base, tapered to a bluntly rounded tip. Basal segment of upper limb ca. 421 µm long, and ca. 81 - 85 µm wide at mid-length; basal segment with a shallow, median groove. Greatest width of lower limb ca. 222 - 233 µm; lower limb bearing sparse, marginal row of long setae in apical third. Male tergal process. Prominent raised structures on abdominal terga 7 and 8 (Figs. 64 - 66). Tri-lobed process of tergum 8 ca. 153 - 200 µm wide, and bearing a broad, shallow notch, interrupted by a low median projection. Lobes of process appear slender and angled slightly forward in lateral aspect; surfaces covered with scale-like structures; anterior face bearing a transverse groove. Process of tergum 7 weakly tri-lobed, ca. 103 - 160 µm wide, and covered with scale-like structures.