270 
Psyche 
[December 
Figure 2. Lycodemas adolescens, n.sp. Drawing of holotype. W, wing 
sheath ; other abbreviations are the conventional venational symbols. 
not visible in the wing pad but it presumably arises near the basal 
part of the wing, as indicated in the drawing. Rs has ten primary 
branches, with one or two secondary branches; the area between MA 
and the preserved part of MP presumably had some anterior 
branches from MP but they are not discernible in the specimen ; in 
any event, MP seems to be less developed than in other genera of 
this family. CuP is extensively branched and conforms to the usual 
pattern in the Lycocercidae. The narrow form of the wing basally 
is probably due to the immature nature of the wing pad. Cross veins 
are discernible in a few small areas; they are apparently numerous 
and reticulate. The general venational pattern, as far as it can be 
determined, is shown in figure 2. 6 
The venation of the hind wing appears to be very similar to that 
of the fore wing. The wing pads on one side of the body seem some- 
what broader in the photograph (figure i) than the other pair, but 
this is deceptive; the matrix was chipped away for some distance 
from these wing pads, giving the impression that the exposed area 
was actually part of the wing. The wing pads on both sides are 
3 mm. wide. 
Holotype: No. Hd.i3a, b; collected in Pit Eleven; in the collec- 
tion of Mr. Jerry Herdina, Berwyn, Illinois. 
The most interesting feature of this nymph is the position of the 
wings with respect to the body. The arrangement is very similar 
indeed to that which we have described in the megasecopterous 
nymph, Mischoptera douglassi Carpenter and Richardson. As in the 
latter, the wing pads of Lycodemas have no contact with the body 
fi We are indebted to Dr. Jarmila Kukalova-Peck for the preparation of 
this figure. 
