SMITHSONIAN MISCELLANEOUS COLLECTIONS 



VOLUME 85, NUMBER b 



morpholo(;y of the insect abdomen 



FART I. GENERAL STRliCTllRr^ OE THli ABDOMEJ 

 AND rrS APPENDAGES 



BY 



R. E. SNODGRASS 



Bureau of Entomology, 



U. S. Department of Agriculture 



(l'UBLlC\Tloy 3124) 



CITY OF WASHINGTON 



PUBLISHED BY THE SMITHSONIAN INSTITUTION 



NOVEMBER 6, 1931 



