48 Farmers’ Bulletin 1270. 
HICKORY TIGER MOTH.” 
This is another insect which sometimes attracts attention in neglected 
erchards and young orchards not regularly sprayed with arsenicals. The eater- 
pillars are gregarious (fig. 94) and, if not checked in the course of their feed- 
ing, May cause considerable defoliation of the trees. This insect, the hickory 
tiger moth, is well known in the New England States and is often found as far 
Fie. 94.—Young caterpillars of 
hickory tiger moth. 
lic. 97.—Cocoon of hickory Fic. 96.—Full- grown larva of the 
tiger moth. hickory tiger moth. 
West as Montana and Missouri, attacking the apple, pear, quince, cherry, 
hickory, walnut, and many other trees. 
The hickory tiger moth hibernates in the pupa stage, usually in trash on the 
ground. Early in the summer the moths emerge and soon deposit their eggs on 
the foliage in clusters containing from less than 100 to about 400. The roundish 
eges are about one-thirty-fifth of an inch in diameter, bluish white when fresh, 
but later becoming darker. The moths (fig. 95) have rather conspicuous mark- 
ings, the forewings being mottled with small brownish dots, with three more or 
less distinct rows of white dots, and having an expanse of approximately 2 
inches. Upon hatching, the larvee feed at first upon the surface of the foliage 
and later consume the entire leaf except the larger veins. The full-grown larva 
(fig. 96) is about 14 inches long and is covered with black and white hairs. 
°3 Halisidota caryae Viarris. 
