128 AGRICULTURAL EXPERIMENT STATION. 



FIG. 16. 



In Fig. 16 is shown the Copper-Spotted Calosoma, which feeds 

 upon the caterpillars. It maj' be^^known b}' its large size and three 

 rows of copper-colored spots on each wing cover. 



There is a mite similar to the one that eats the eggs of the 

 Oyster-shell Bark-louse that feeds upon the eggs of this species. 

 Insectivorous birds eat the larvse. This season we noticed the 

 White-eyed Vireo capture and eat eight half-grown caterpillars at 

 one feeding. It would approach the tent and while on the wing 

 seize a caterpillar and retire to a branch close b}' and eat it, and 

 soon return again. 



THE FOREST TENT CATERPILLAR. 



Clisiocamjm sylvatica, Harris. 



This species closely resembles the tent caterpillar of the apple 

 tree, and like it constructs a web. They are often found on the 

 same tree in the orchard. This insect feeds on the hickory, walnut, 

 rose, oak, poplar, ash and other forest trees and also on the apple, 

 plum, peach and cherry. It is a voracious feeder and does much 

 damage to the foliage of forest and fruit trees. 



DESCRIPTION. 



Perfect insect — A moth which expands an inch and a half or more. 

 Wings, brownish yellow. The fore wings with two oblique lines as 

 in the apple-tree tent caterpillar, but brown instead of white and the 

 space between them darker than the rest of the wing. Fig. 17, b. 



