PARASITIC AND I'KKDACEUl* 



INSECTS 



IN 



APPLIED ENTOMOLOGY 



C. V. RILEY, Ph. D. 



[ READ AT THE FIFTH ANNUAL MEETING OF THE ASSOCIATION OF 



ECONOMIC ENTOMOLOGISTS, MADISON, WIS., AUGUST 15, 1893, 



AND REPRINTED FROM 1XHEGT LIFK, VOL. VI, NO. .'. 



AVASIIINdTOX: 



GOVERNMENT 1 II IN TING OFFICE. 



1893. 



