U. S. DEPARTMENT OF AGRICULTURE, 



BUREAU OF ENTOMOLOGY— BULLETIN No. 51. 



L. O. HOWARD, Entomologist. 



THE 



MEXICAN COTTON BOLL WEEVIL: 



A Revision and Amplification of Bulletin 45, to 

 Include the Most Important Obser- 

 vations Made in 1904, 



PREPARED UNDER THE DIRECTION OF THE ENTOMOLOGIST 



BY 



W. D. HUNTER and W. E. HINDS. £% 



At * 



WASHINGTON: 

 GOVERNMENT PRINTING OFFICE, 



1905. 



