Uso, DEPARTMENT OF AGRICULTURE, 
DIVISION OF ENTOMOLOGY—BULLETIN NO. 31, NEW. SERIES. 
L. O. HOWARD, Chief of Division. 
PROCHHDINGS 
OF THE 
THIRTEENTH ANNUAL MEETING 
OF THE 
ASSOCIATION UF ECONOMIC EMTOMOLOGINTS 
WASHINGTON: 
GOVERNMENT PRINTING OFFICE. 
Vas pA 
