THE APPLE-TREE TENT-CATERPILLAR. 



Clisiocampa americana, Htirr. 



Apple-Tree Tent-Caterpillar. 



oandfi, full grown caterpillars resting on the tent; c, belt of eggs; d, cocoon, all 

 natural size.— After Riley. « 



This species was described in bulletin No. 12, of this Station, and 

 is prepared again with additional facts and illustrations for publica- 

 tion at this time. It has been so vei'v abundant and destructive 

 throughout the Commonwealth for several years past as to attract 

 very general attention. The large whitish, silken, web-like tents, 

 Figs. 5 and 6, d, formed by these insects have been very unsightly 

 objects on the fruit trees in our orchards and along the road sides, 

 as well as on wild cheri*y trees in all our forests where these trees are 

 allowed to grow. 



The amount of damage which this insect has done is far greater 

 than is generally supposed. 



