320 
THE STUDY OF INSECTS. 
the larva makes a felt-like cocoon composed largely of its 
hairs. The adult has mouse-gray, unspotted wings; the 
abdomen is yellow, with a row of black spots along the 
middle of the back. 
The Hickory Tiger-moth, Halisidota cary& (Ha-bs-i- 
do'ta ca'ry-ae).—One of the most abundant of caterpillars 
in the Atlantic States and westward during the months of 
August and September is one clothed with dense tufts of 
finely barbed white hairs (Fig. 391); there is a ridge or crest 
Fig. 391 .—Halisidota caryce> larva. 
of black hairs on the middle of the back of the abdominal 
segments, a few long white hairs projecting over the head 
from the thorax, and others projecting back from the last seg¬ 
ment ; there are also two pairs of pencils of black hairs, one 
on the first and one on the seventh 
abdominal segment, and a similar 
pair of pencils of white hairs on 
the eighth abdominal segment. 
This larva feeds on hickory, 
butternut, and other forest-trees. 
Its grayish cocoons, composed 
almost entirely of the hair of the larva, are often found under 
stones, fences, and other similar places. The fore wings of 
the adult (Fig. 392) are dark brown spotted with white. 
