U.S. DEPARTMENT OF AGRICULTURE. 



DIVISION OF ENTOMOLOGY. 



PERIODICAL BULLETIN. Issued April, 1893. 



Vol. V. 



]sro. 4. 



INSECT LIFE. 



DEVOTED TO THE ECONOMY AND LIFE-HABITS OF INSECTS, 

 ESPECIALLY IN THEIR RELATIONS TO AGRICULTURE. 



EDITKD 15 Y 



C. V. RILEY, Entomologist, 



L. O. HOWARD, First Assistant, 



WITH THE ASSISTANCE OF OTHER MEMBERS OF THE DIVISIONAL FORCE. 



[PUBLISHED BY AUTHORITY OF THE SECRETARY OF AGRICULTURE.] 



WASHi:tTGTOK: 



GOVERNMENT PETNTING OFFICE. 

 1893. 



