U.S. DEPARTMENT OF AGRICULTURE. 



DIVISION OF ENTOMOLOOY. 

 PERIODICAL BULLETIN. 



October, 1891. to ^iignst, 1 892. 



INSECT LM E. 



Vol. IV. 



ItKVOTEl) 'I'O THE ECONOMY AND LIFK-HAUITS 01' INSECTS, 

 KSPEOIALLY IN THElll. RELATIONS TO ACiRICUIJUIlE. 



KDITKI) HV 



C. V. RILEY, Entomologist, 



AND 



L. O. HOWARD, First Assistant, 



WITH PHK A.SSISrWCK OK OTIIKU MKMHKKS OK TIIK DIVISIONAL FOHCK. 



[PUBIJSHKD KY Ai;TlIniHTV OF THH SKCKKTA |{ V OK A({I11CUI,TIJKE. I 



WASHINGTON: 



GOVERNMENT PRINTING OFFICE. 



IS 2. 



