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UNITED STATES 



r / DEPARTMENT OF AGRICULTURE 

 ^ Miscellaneous Publication No. 273 



Washington, D. C. 



Issued February 1938 

 Slightly revised April 1939 



INSECT ENEMIES 

 OF WESTERN FORESTS 



Compiled by 



L ! R R A R 



F. p. KEEN ^ JUN7 1939 



Senior Entomologist I ■„■ 



DiTision of Forest Insect Investigat onl^' S, Deparli ;i;at 01- AgftGl 

 Bureau of Entomology and Plant Qua antine 



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•"or sale by the Superintendent of Documents, Washington, D. C. 



Price 25 cents 



