116 
Ohio Naturalist. 
[ Vol. 1, No. 7 
Fig. 1. Callosantia flrometJiea, female. (H. O. ad. nat. 1880.) 
The eggs are laid in early summer almost immediately after 
pairing, and hatch in course of a few days, the larvae growing through 
the summer. The cocoons are hung to twigs of trees by a silken 
cord, and quite often a leaf is utilized as the outer covering within 
which the elongate oval cocoon is built. In any case the cocoon 
bears resemblance to a withered curled leaf hanging by its petiole. 
In this manner cocoons hang upon the trees through the winter. 
They are found most commonly on wild cherry, this being ap- 
parently the favorite food plant of the larva. They feed however 
on a large number of common trees and shrubs. 
THE PROMETHEA MOTH, CALLOSAM1A PROMETHEA. 
Herbert Osborn. 
This beautiful moth is one of the rather common species belong- 
ing to the group of silkmaking Lepidoptera. The moths appear in 
May or June. The female is light rusty brown and drab with a 
darker area across the middle of the wings, while the males are 
much darker, nearly black, and differ further from the females in 
the shape of the wings and markings as shown in the figures. 
