U.S. DEPARTMENT OF AGRICULTURE. 



DIVISION OF ENTOMOLOGY. 



PERIODICAL BULLETIN. 



VOL. II. 



JULY, 1889, 



to 



JUNK, 1890. 



INSECT LIFE. 



DEVOTED TO THE ECONOMY AND ' LIFE-HABITS OF INSECTS, 

 ESPECIALLY IN THEIR RELATIONS TO AGRICULTURE. 



KDITKD BY 



C. V. RILEY, Entomologist, 



AND 



L. O. HOWARD, First Assistant, 



WITH THE ASSISTANCE OF OTHER MEMBERS OF THE DIVISIONAL FORCE. 



6 °<* 



c % v 



% 



[PUBLISHED EY AUTHORITY OF THE SECRETARY OF AGRICULTURE.] 



WASHINGTON: 



GOVERNMENT PRINTING OFFICE 



1KS9-'90. 



