CHAP. XIII. FAMILIES OF LEPIDOPTERA. 



73 



Emperor-butterfly, Fig. 193, d), and the first pair of feet are 

 imperfect, being destitute of claws, and are never used in walk- 

 ing; the first pair of legs are folded up against the breast, like 



Fig. 193. 



a tippet. The colors are usually brown and black, sometimes 



almost wholly black, or marked with whitish bands or borders. 



Their caterpillars are sometimes naked (as the caterpillar 



of the Archippus-butterfly, Fig. 78), but are more often cov- 



Fig. 194. 



ered with spines or bristles; they usually live exposed upon 

 the leaves, but several kinds live beneath a web. When about 

 to undergo transformation* their caterpillars suspend them- 

 6 



