262 INSECTS INJURIOUS TO THE GRAPE. 



The moth (Fig. 271) is a little smaller than grata, meas- 

 uring, when expanded, about one inch and three-eighths. 



It differs also in the following par- 

 •^^^' ^'^^' ticulars : on the fore winsrs the 



brownish-purple stripe on the front 

 margin is extended farther along 

 the wing, the bordering of the outer 

 margin is paler and more uniform in 

 width, the inner edge is w^avy instead 

 of straight, and the bordering of the hind margin is wider and 

 more distinct. The border on the hind wnngs is much paler, 

 and extends the w^hole length of the outer margin. 



The larva is nearly an inch and a quarter long. The head 

 is of an orange color, spotted with black, the body banded 

 with white, black, and orange, most of the segments having 

 three white and three black lines on each side of a central 

 orange band. The body tapers towards the head, the hinder 

 segments being elevated. 



The chrysalis is reddish brown, with rows of very minute 

 teeth on the back, and a thick, blunt spine on each side of 

 the abdomen at the tip. 



No. 140. — The Eight-spotted Forester. 



Alypia octomaculata (Fabr.). 



While the moth of this species is very diiferent in appear- 

 ance from Nos. 138 and 139, the larva is very similar, being 

 white or pale bluish, with many black lines, and an orange 

 band across each segment. This larva (Fig. 272, a) may, 

 however, be distinguished by its having eight black lines on 

 each segment (counting the two which border the orange band) 

 (see 6, Fig. 272) instead of six; it has also a series of white 

 spots along each side close to the under surface. The orange 

 bands are fainter on the anterior segments, and those on the 

 middle segments are dotted with black, and from each of 

 these dots there arises a short whitish hair. The head and 

 the upper part of the next segment are of a deep orange, 



