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. 



iqa.55S 



WASHINGTON: 



GOVERNMENT PRINTING OFFICE. 



1905. 



