U.S.DF^ARTMENT OF AGRICULTURE. 



DIVISION OF KXTOM()LO(;V. 

 PERIODICAL BULLETIN. 



September, 1892, to 



Jiily, 1893. 



INSECT LIFE. 



Vol. V, 



DKVOrEI) TO THE ECONOMY AND LIFE-HABITS OF INSECTS, 

 ESPECIALLY IN THEIR RELATIONS TO AGRICULTURE. 



C. V. RILEY, Entomologist, 



L. O. HOWARD, First Assistant, 



WITH THK ASSISTANCK OF OTtlKK ME.MHKRS OK THK DIVISIONAI. KOKCK. 



[PUBMSHED BY AlITHORITY OF THH SKCliETARV OF AfiRlCULTURE. 



WASHINGTON- 



GOVERNMENT PRINTING OFFICE. 



1 8 9 ;; . 



