1976] 
Carpenter — Permian Insects 
345 
and M forked near the wing-base. 
Family Psoropteridae, new family 
Small insects. Fore wing: costal area narrow. Stem of M fused 
with stem of CU at base and then for a greater distance with CUA; 
RS unbranched; M with two branches, CUA with three; CUP un- 
branched; two anal veins. Longitudinal veins unusually thick and 
heavy but cross veins weak and thin. Wing membrane uniformly 
rugose, without hairs. Hind wing and body unknown. 
Psoroptera, new genus 
Fore wing: RS extending nearly to wing apex, unbranched; RS 
arising well before mid-wing; M+CUA about as long as the rest of 
M before its forking into Ml+2 and M3+4; CUA diverging from M 
just before the level of the origin of RS, and forking just beyond 
that point; Ml+2 coalesced with RS for as long an interval as the 
free piece of M; CUA forming three strong branches, the first 
arising just beyond the level of the origin of RS. 
Type-species: Psoroptera cubitalia, n.sp. 
The generic name is derived from the classical Greek words 
psoro- (scabby) and ptera (wings) and is considered neuter plural. 
Psoroptera cubitalia, n.sp. 
Figure 7 
Fore wing: length, 6 mm; width, 1.8 mm. Ml+2 and M3+4 un- 
M+CU 
Figure 7. Psoroptera cubitalia, n.sp.; drawing of fore wing, based on holotype, 
no. 5840, M.C.Z. Length of wing, 6 mm. 
