INJURING THE LEAVES. 



141 



striped Maple-worm. It is the larva of a handsome, 

 yellowish-pink moth (c), sometimes called the Rosy 

 Dryocampa. These moths appear early in summer, 



Fig. 70. Green-striped Maple-worm: ".larva; 

 b, pupa ; c, moth. 



and lay their eggs on the under sides of the maple 

 leaves in clusters varying from forty to eighty each. 

 The larvae hatch in a week or ten days, and feed 

 upon the foliage, being gregarious at first, but grad- 

 ually spreading as they grow older. In a few weeks 

 they become fully developed as larvae, having 

 moulted four times, when they descend to the 

 ground, where, just beneath the soil surface, they 

 change to dark-brown pupae (b). About a fortnight 

 later they come forth as moths again. These moths, 

 which usually appear during July or August, lay 

 eggs for a second brood of larvae that develop during 

 late summer or early autumn, and pass the winter 

 as pupae, emerging as moths the following summer. 



