116 



FRUIT INSECTS 



newly made cocoon is dusted over with a yellowish powder. 

 A few days after finishing the cocoon the larva transforms into 

 a brownish pupa, f to f inch in length, which is clothed with a 

 brownish pubescence except on the sheaths of wings and legs 

 (Fig. 125). The pupal period lasts about three weeks. 



Fig. 127. — Male and female moths of the apple-tree tent-caterpillar. 



In New York the majority of the moths emerge during the 

 last week of June and the first week of July, and the eggs are 

 laid soon after. There is but one generation a year, from 

 July till April being spent in the egg stage. The moths are 

 dull, reddish-brown, marked on the front wings by two nearly 

 parallel oblique whitish lines (Figs. 126 and 127). The females 

 expand 1 J to 2 inches ; the males are slightly smaller and of a 

 darker brown. 



Natural enemies. 



The tent caterpillar is held in check b}^ a long series of para- 



