ZD 



U. S. DEPARTMENT OF AGRICULTURE, 



BUREAU OF ENTOMOLOGY BULLETIN No. 73. 



L. O. HOWARD. Enlomologiil and Chirl of Bureau. 





STUDIES OF PARASITES OF THE 



COTTON BOLL WEEVIL 





I 5SS 



I* JAN «n * 



W. DWIGHT PIERCE, ^^^^>r^ 

 Special Field Agent. 



Issued January 21, 1908. 



WASHINGTON: 



GOVERN M E N T PRINTING O V PIC E 

 1908. 



