•It.lNSic 



FLYTRAPS AND THEIR OPERATION 



F. C. BISHOPP 



Entomologist, Investigations of Insects Aflfecting the 

 Health of Animals 



FARMERS' BULLETIN 734 

 UNITED STATES DEPARTMENT OF AGRICULTURE 



Contribution from the Bureau of Entomology 

 L. O. HOWARD, Chief 



Washington, D. C. Issued June 10, 1916; second revision, March, 1921. 



Show this bulletin to a neighbor. Additional copies may be obtained free from the 

 Division of Publications, United States Department of Agriculture 



WASHINGTON : QOVERNMENT PRINTINQ OFFICE : 1921 



