APPLE TREE TENT CATERPILLAR 



79 



body; and in the female a wing expanse of one and one-half to two 

 inches; in the male, about one and one-half inches. In each sex 

 there occur two nearly parallel, whitish lines running obliquely 

 across the front of the wings. 



The larva or caterpillar is two inches long when mature, cylin- 



Fia. 101. American tent caterpillar (Lugger). 



drical, deep black with white stripe along the back and also with 

 lateral markings; on each side, a row of oval, blue dots occur 

 (Fig. 101). The body is sparsely clothed with fine yellowish hairs. 

 The larvae live in conspicuous nests made of layers of silk, fre- 

 quently with room for the caterpillars between the layers. 



