SMITHSONIAN MISCELLANEOUS COLLECTIONS 



VOLUME 89. NUMBER 8 



MORPHOLOGY OF THE INSECT ABDOMEN 



PART II. THE GENITAL DUCTS AND THE OVIPOSITOR 



BY 



R. E. SNODGRASS 



Bureau of Entomology, 



U. S. Department of Agriculture 



(Publication 3219) 



CITY OF WASHINGTON 



PUBLISHED BY THE SMITHSONIAN INSTITUTION 



OCTOBER 20, 193 3 



