ATTACKING THE LEAVES. 



255 



their surface, while above and below this band the color is 

 almost black, the hinder margin being fringed with white. 

 On the body there is a line of white on each side, extending 



Fig. 264. 



irom the head to the base of the thorax, ^v;Rre it unites with 

 another line of the same color, which extends down the middle, 

 and, dividing, sends a branch to each side. The abdomen is 



Fig. 265. 



greenish olive spotted with white and black; the wings, when 

 expanded, measure about three and a half inches across. 



The larva is found occasionally feeding on the leaves of the 

 grape-vine, but more commonly on purslane; it feeds also on 

 turnip, buckwheat, and apple leaves. It is very variable in 

 color. The most common form is that shown in Fio-. 265, 

 where the body is yellowish green, with a row of prominent 



