THE CASTNIAS. 



649 



some of which are so large that they look like bats rather than 

 moths. 



As is the case with most of these insects, the colouring of 

 Cas/nia Zerinthia is very simple. The ground colour of the upper 

 wings is pale brown mingled with a little white, and a bold black 

 stripe about the middle. The lower wings have a little more 

 colour, the basal half being white, and the rest black mingled 



Fig. 382. — Castma Zerinthia. 

 (Pale brown, yellow, and white.) 



with yellow spots. The thorax is dark brown, and the abdomen 

 white with a number of tiny brown specks. The insect is a 

 native of Brazil. 



A small group called the Agaristidae is illustrated by two 

 species. 



The first is an Australian insect called Agarista contorta, and 

 is rather a conspicuous one on account of the boldly contrasted 

 hues of its colouring. 



The ground colour of the wings is deep black, and upon them 

 are several bold spots and lines of bright yellow, as seen in the 



