188 Psyche [October 
tinctly more convex and rounded on the right than on the left 
side. The tegula is well developed and the wings are normal 
on the right but completely lacking on the opposite side. The 
right legs are entirely black, except the spurs, which are white, 
and lack the spines on the extensor surfaces of the tibize. On the 
left side the legs have distinctly incrassated femora and somewhat 
clavate tibie. They are red, except the distal halves of the femora 
and tibiz and the tips of the tarsal joints, which are black. The 
middle and hind tibiz have the prominent spines so characteristic 
of the female on their extensor surfaces. The abdomen has six 
complete segments and apparently a vestige of a seventh on the 
right. It is asymmetrical owing to the enlargement of the second 
segment on the left, or female side. It is black, except for a large 
red spot on the left side of the middle line on the first and another 
similar but larger spot on the second segment. ‘The line separa- 
ting the male from the female half of the abdomen on the dorsal 
side runs a little to the right of the middle line but on the ventral 
surface it is very nearly median. The appendages at the tip 
of the abdomen are represented by the left half of the sting sheath, 
the left stylet and the left half of the gorgeret which is very long 
and slender, fully exerted and curved over to the right. The 
hypopygial area of the female is also recognizable on the left side. 
The male appendages are much less distinct, but it seems to be 
possible to detect what corresponds to the right stipes. The 
sculpturing on the two sides of the body corresponds to that of 
the respective sexes, the punctation being nearly the same on 
both sides of the head but decidedly coarser on the pro- and 
mesonotum of the right than on the corresponding regions of the 
left side of the thorax. The left pleure are concave and glabrous, 
on the right side they are convex and coarsely punctuate. The 
reticulate rugosity of the right half of the epinotum is coarser 
than that on the left half. The hairs on the right half of the head 
and thorax are distinctly longer than on the left half of these 
regions. Those on the entire male half are glistening white. 
They are also glistening white on the female half except on the 
second abdominal segment where those at the base and apex are 
black and those in the middle are yellow. The hairs on the legs 
are not appreciably longer or more abundant on the right than 
on the left side. 
