Synonyms and other taxonomic changes
Ischnoptera deropeltiformis (Brunner von Wattenwyl, 1865)
synonym intricata Blatchley, 1903
synonym johnsoni Rehn, 1903
synonym nigricollis Walker, 1868
Size
Ranges based on Roth's measurements of 5 males and 3 females
Length: Males: 11.0-14.5mm; Females: 12.1-15.0mm
Pronotum length x width: Males: 2.8-3.7mm x 4.0-5.2mm; Females: 3.2-4.2mm x 5.0-5.5mm
Tegmen length: Males: 14.0-17.8mm; Females: 4.0-4.5
Interocular width: Males: 0.7-0.8mm; Females: 1.1-1.2mm
Identification
Excerpts from rediscriptions of species in US by Roth 2002:
Male- Subgenital plate subsymmetrical, with a broad convex lobe bearing 2 cylindrical dissimilar styles, the right one stouter, interstylar margin about the same as the length of a style. Genitalia: hook on the left side with a preapical incision; median phallomere terminating in a dark spinelike process with subobsolete barbules at its base (seen under compound microscope) and a large lobe which may be membranous or dark; right phallomere consisting of about 4 sclerites, one a small cleft, setal sclerite absent.
Female- Pronotum parabolic. Tegmina reduced in length, reaching to the first abdominal tergum (Fig. IE), distal margin subtruncate, sutural margins contiguous. Abdominal terga unspecialized; supra-anal plate trigonal, apex rounded; subgenital plate with oblique sides and truncate hind margin extending beyond the margins of the supra-anal plate.
Color (from Hebard, 1917: 66). Male: General color shining blackish brown, tegmina distad paler chestnut brown. Legs and spines yellow-orange, sometimes with the trochanters and femora chestnut brown, darker than the tibiae and tarsi. Female: shining black with a brownish tinge. Tegmina variable from normal (dark) to paler distally, sometimes with a purplish iridescence.
Range
Kansas, Kentucky, Louisiana, North Carolina, Ohio, South Carolina, Texas, Virginia, Washington DC.
