112 THE APPLE LEAF HOPPER 



THE WHITE MARKED TUSSOCK MOTH, 



Hcnicrocainpti lnicosfi</iiia Sm. and Abb. 



Fig. 55. White Marked Tussock Oaterpiller after Riley, Bureau of Entomology, 



U. S. Dept. Agrl. 



When full grown one of onr most beautiful caterpillars, imme- 

 diately recognized by the four white tufts or tussocks on l)ack. Thf 

 head is bright coral red, and the body marked with longitudinal yel- 

 low, gray and black lines. Below the caterpillar is yellow. There 

 are two tufts of black hair projecting forward from above the head. 

 At the posterior end of the body there is one hairy "horn." 



Fig. ;')(■). White Market! TLi.ssock Moth, wingless female, about to lay her eggs 

 on cocoon. After .T. S. Houser. Ohio Bui. IIM. 



ddiis "worm," when full grown, has been feeding for a month, 

 and is about an inch long. At that time it spins for itself a hairy 

 cocoon. This ma}' he on the tree where it has been feeding, or upon 

 other trees, or u])on buildings, fences, etc. Two weeks are spent in 

 this cocoon, at the expiration of which time the moth emerges. The 

 male moth is gray. The female moth has no wings. She lays her 

 eggs in a whitish mass on her cocoon and then dies. This egg mass 

 with the cocoon is a conspicuous object, and when it is known that 

 the eggs of the female number from two hundred to four hundred, 

 the importance of gathering and destroying the egg masses before 

 hatching time is very apparent. This pest is a general feeder, a 

 variety of trees and vines suffering from its depredations. 



