1976] 
Carpenter — Permian Insects 
339 
SC 
Figures 1-3. Nugonioneura. Fig. 1, N. problematica; drawing of fore wing, based 
on specimen no. 5895, M.C.Z. Length of wing, 10 mm. Fig. 2, N. problematica; 
drawing of fore wing, based on specimen no. YPM27536, Peabody Museum, Yale 
University. Length of wing, 10 mm. Fig. 3, N. problematica (identification uncer- 
tain); drawing of hind wing, based on specimen no. 7504, M.C.Z. Length of wing, 
10 mm. AF, anal fold. The terminology of the wing veins used in all parts of this 
series of papers is discussed in Part 1 1 (Carpenter 1966). 
and the others are mainly in the branching of RS and M: RS has 
4 terminal branches and there are 5 terminal branches of M arising 
from M+CUA, as in the holotype. The cross vein between M and 
RS, near the origin of the latter, is very short, but this is undoubt- 
edly an individual variation. 
I see no reason to doubt that these three specimens are fore 
wings of one species. There is also another specimen in the Har- 
