FARMERS BULLETIN 564. 



gipsy moth from its native home in Europe and Japan. Since that 

 time a large amount of parasitized material has been received nearly 

 every year, and as a result some promising natural enemies have 

 become established in this country and are assisting in bringing about 

 the control of the species. The enemies which have become estab- 



lished and are at present destroying the largest number of gipsy-moth 

 caterpillars and pupae are a Calosoma beetle (Calosoma sycophanta 

 L.) ; a tachinid fly (CompsUura concinnata Meig.), which is also a 

 parasite of the brown-tail moth ; and a species of Apanteles ( Apan- 

 leles lacteicolor Vier.), which attacks small gipsy-moth and small 



