BOMBYCIDS. 91 
on the sides, like 7’. velleda. It is gray above, with irregular white 
spots, and striped with sooty black, having two scarlet bands crossing 
the forward part of the body, on each of which are three black spots. 
The under side is orange. 
The caterpillar measures over two inches in length when fully 
grown, and makes a gray-brown cocoon on the tree upon which it 
feeds. The moth emerges in June or early in July. 
To the genus Anisota belong several pretty native insects. They 
are not large, the largest spreading less than three inches. ‘The 
sexes differ so much in coloring, size and shape as to scarcely be 
recognized as the same species. The antenne of the females are 
narrow, while in the males they are pectinated for two-thirds of their 
length. The larvie feed on various forest trees and are sometimes so 
abundant as to completely strip the trees of their leaves. These in- 
sects pupate in the ground. 
Anisota senatoria. 
Anisota senatoria is a common species in the eastern United States 
and Canada, and may be taken the latter part of June about electric 
lights at night or found in the daytime clinging to grass-stalks under 
oak-trees, where they have rested to expand their wings after leaving 
the chrysalis shell. The female moth deposits her eggs in clusters 
on the under side of the leaves of oak-trees, and the larvee may some- 
times be seen in immense numbers. 
They are apparently gregarious during their entire caterpillar 
state and in casting their skins they congregate on the ends of the 
twigs leaving their wrinkled cast-off coverings where they often re- 
main after the larvee are full grown and have departed. When 
young they eat only the small and tender leaves, devouring the 
