INSECTS INFESTING THE APPLE TREE. 



83 



CHAPTER XXXIV. 



Orchard Tent Caterpillar. (Cal.) 



(^Clisiocampa Americana. — Harris.) 



Order, Lepidoptera ; Family, Bombycid.e. 



[Living on apple, cherry and oak trees ; a striped sixteen- 

 legged caterpillar, sparingly clothed with hairs on the sides of 



the body.] 



This insect infests apple trees, and is also found on cherry 

 trees. Its presence can be easily detected by the web-like 

 nests found on trees which they infest, and from which the 

 insect derives its common name — Tent Caterpillar. 



Fig. 52. — r c h a r d 

 Fig. 52, a and b. 



Tent Caterpillar; a 

 and I), the caterpil- 

 lars — c o 1 o r s , black, 

 yellow, white and 

 blue ; c, the eggs (poor 

 figure ; Fig. 54 is more 

 accurate) ; d, the co- 

 coon-color, yellowish 

 white. 



The caterpillar (Fig. 



52, a and 6,) is about 



two inches in length, 



and nearly three lines 



in d i a m e t e r ; head 



black, frontal mark 



\ inverted Y, same as 



DeLong's caterpillar 



{Clisiocampa constric- 



ta); ground color of 



back apparently 



brownish-black. 



A dorsal hne of a yellowish-white color extends the whole 



length of the insect, on each side of which, on a yellowish or 



orange ground, are black crinkled lines, which on the sides 



