THE BUTTERFLIES AND MOTHS 



203 



inches, of the genus Catocala, have mottled gray fore-wings which 

 very closely resemble the bark of trees, upon which they rest during 



the day. The hind- 

 wings are black, bril- 

 liantly banded with red 

 or yellow. They are 

 much fancied by col- 

 lectors and are taken 

 by luring them with 



sugar water or similar 

 lures, smeared on the 

 trees. 



The tussock-moths 

 (Liparidae). The cater- 

 pillars of the tussock- 

 moths are strikingly 



FlG. 319. Catocala ultronia and its larva 

 (After J. B. Smith) 



clothed with tufts of bright-colored hairs, or tussocks, which has 

 given them their popular name. The moths are medium sized, 

 usually of a dull brown or gray color. The males have feathered 



FIG. 320. The white-marked tussock-moth. (Natural size) 

 a, wingless females depositing eggs on cocoons ; l>, male moths ; c, full-grown female larva 



