GRAPE MOTHS. 



59 



Another moth (Psychomorpha epimenis, Fig. 51, a, larva; h, side 

 view of a segment; c, top view of the hump), also feeds on the 

 grape, eating the terminal 

 buds. It is also bluish, and 

 wants the orange bands on 

 the side of the body. An- 

 other moth of this family is 

 the American Procris (Acolo- 

 ithus Americana, Fig. 52a, lar- 

 va ; h, pupa ; c, cocoon ; d, e, 

 imago) ; a dark blue moth, 

 with a deep orange collar, 

 whose black and yellow cat- 

 erpillar is gregarious (Fig. 

 53), living in companies of a 

 dozen or more and eating the 

 softer^arts of the leaves. It is quite common in the Western 

 and Southern States. The figure represents two separate 



broods of caterpillars feed- 

 ing on either side of the 

 midrib of the leaf. 



But if the moths are, as 

 a rule, the enemies of our 

 crops, there are the silk 

 worms of the East and 

 Southern Europe and Cali- 

 fornia, which afford the 

 means of support to multi- 

 tudes of the poorer classes, and supply one of the most valuable 

 articles of clothing. Blot out the silk worm, and we should 



^ ^ — a^ 



49. Eight-spotted Alypia and Larva. 



50. Eudryas gi-ata. 



51. Lar^'a of Psychomorpha. 



remove one of the most impoi-tant sources of national wealth, 

 the annual revenue from the silk trade of the world amounting 

 to $254,500,000. 



