Vol. 17 
ECONOMIC ENTOMOLOGY 
Official Organ American Association of Economic Entomologists 
W. E. Britton, Associate Editor 
A. F. Burgess, Business Manager 
Advisory Committee 
Arthur Gibson E. F. Phillips A. C. Baker 
R. A. Cooley G. F. Ferris E. N. Cory 
Published by 
American Association of Economic Entomologists 
Geneva, N. Y. 
Entered March 14, 1921, as second-class matter at the Post-office at Geneva, N. Y., under the Act 
of Congress of March 3, 1879 
DECEMBER 1924 No. 6 
JOURNAL 
OF 
