182 HALF IlOUPtS WITH rN^gECTS. [Packard. 



Massachusetts, man}' persons noticing their attacks ; and it 

 seems to be a common insect all over New England. When 

 fully grown it crumples the leaves, disfiguring the whole 

 tree, and doing great damage to the fruit-buds and flowers, 

 thus directly lessening the apple and pear crop. About the 

 first of June the}' cease eating, and make a loose, delicate 

 silken cocoon in the folded leaf. They remain several days 

 — sometimes nearly two weeks — in this condition before 

 assuming the chrysalis state, about the IGth of June, and the 

 moths are seen flying about and entering houses, attracted 

 by the light within, during the last week of June and the 

 first of July. The chrysalis is brown and of the usual 

 shape, and, as Han-is states, has but a single row of teeth 

 along the dorsal side of each abdominal segment. After the 

 moth has slipped out of the pupa case, the empty shell re- 

 mains attached by the tip of the abdomen to the surface of 

 the leaf. 



The moth is of a dark ash color, the fore wings being usu- 

 ally paler in the middle. The basal third of the wing is 

 dark ash mottled with paler scales, the outer edge of the 

 dark area being angulated just behind the middle of the 

 wing. The costa is marked with light and dark bands. On 

 the outer third the wing is nearly as dark as on the base ; 

 near the outer edge, and half-way between the costa and 

 hind edge, are four well-marked longitudinal black spots, or 

 short lines running parallel with the costa, or Iront edge, of 

 the wing ; the one nearest the costa is simply an elongated 

 dot, the second and largest is an oblong spot and twice as 

 wide as the third spot, while the fourth again is much 

 smaller. There are three similar black marks situated on 

 the inner edge at the outer third of the wing. When the 

 wings are folded over the back, these black marks, collec- 

 tively, make a rudely triangular figure. The outer third of 

 the wing is also variously banded and mottled with leaden 

 blue and tawny brown scales. The fringe is brown %ud 



22 



