19 
undescribed short- winged form, thus far only taken in Missouri, which 
lives among and feeds upon the oaks only of that region. The present 
species is also evidently undescribed, unless the mature insect should 
differ widely from the preparatory stages herewith presented. It is 
popularly known in that region as the u Red-legged hopper” of the post 
oaks. 
The larvae and pupae are of rather bright color, giving them a gaudy 
appearance. The grdund color of the body is dark wood brown deep- 
ening into black along the sides of the pronotum and the apex of the 
posterior femora. The head for the most part is of a bright lemon yel- 
low, while the pronotum is of the same, varied by streaks and blotches 
of the brown. The antennae and posterior femora are red internally, 
dimly banded with yellow and brown on the external face, through 
which the red color of the inner side can be plainly seen. The feet and 
tarsi are also dark. The pupae average almost an inch in length and 
are rather robust in form, with short, broad heads and powerful jaws 
