Bui. 251, U. S. Dept. of Agriculture. 



Plate I. 



The Calosoma Beetle (Calosoma sycophanta). 



Upper left, eggs; lower left, adult beetle feeding on gipsy moth caterpillar; upper right, gipsy- 

 moth pupae destroyed by Calosoma larva?; center, Calosoma larva, ventral view; right center, 

 Calosoma larva, dorsal view; lower right, Calosoma pupa in cavity in ground. (From Howard 

 and Fiske.) 



