362 
Psyche 
[September-December 
clearly be seen. There are several features of this wing as inter- 
preted here that resemble those of the fore wings of the Mio- 
moptera, such as the form of SC and the coalescence of CUA 
with the stem of M. However, these are also features that are 
commonly found in many orders of insects. More important, I 
believe, is the apparent absence of two characteristics which occur 
in all known Miomoptera: the presence of 2 or 3 branches on RS 
and of a deep, prominent fork on CUA. Although neither RS nor 
CUA in the type of Permembia is preserved completely to the wing 
margin, there does not seem to be sufficient space remaining for 
the characteristic branching. 
Rather than modify the diagnosis of the Miomoptera to accom- 
modate Permembia, it seems preferable to place the genus in in- 
certae sedis at the ordinal level (probably within the orthopteroid 
complex) until specimens showing complete fore and hind wings 
have been found. 
Five specimens which appear to belong to this species are in the 
Harvard collection: nos. 7526ab, 7539ab, 7547, 7596, and 7474. 
All show the characteristic head shape and other body features, 
including the robust antennae, but in all specimens the wings are 
badly twisted and folded. 
In this connection it is appropriate to mention Sheimia sojanen- 
sis Martynova (1958) from an Upper Permian deposit at Sheimo- 
Gora, Kuloy River Basin, Arkhangelsk Region, Soviet Union. This 
minute insect, with a wing-length of about 4 mm., is known only 
sc 
Figure 16. Sheimia sojanensis Martynova, from Permian of Sheimo-Gora, Ark- 
hangelsk Region, USSR; drawing of fore wing, based on holotype, no. 1145/117, 
Paleontological Institute, Moscow. Length of wing, 3 mm. 
