U.S. DEPARTMENT OF AGRICULTURE. 



DIVISION OF ENTO.AIOLOGY. 

 PERIODICAL BULLETIN. 



A.ugust, 1890, 



to j^ugust, 1891. 



INSECT LIFE. 



Vol. III. 



DKV(ri'El) TO THE EUO.NOllY AND MI'li-HAIilTS OK INSECTS, 

 ESPECIALLY IN THElll llELATiONS TO ACRICIILTUUE. 



Ki>ii'i:i> nv 

 C. V. RILEY, Entomologist, 



AND 



L. O. HOWARD, First Assistant, 



WITH IIIK ASSISIAXCK OK OTIll'.U iMIOAIKKKS OK TIIH DIVISIONAL FOKCK, 



IPUBLIfSlIEl) BY AUTIIOIUTY OF THl'; SECRETARY OF AIJRICUIJURJ';. 



WASHINGTON: 



(iOVERNMENT PRINTING OFFICE, 



1 S t) 1 . 



