SMITHSONIAN MISCELLANEOUS COLLECTIONS 

 VOLUME 146, NO. 2 



A CONTRIBUTION TOWARD AN 



ENCYCLOPEDIA OF INSECT 



ANATOMY 



By 



ROBERT E. SNODGRASS 



Late Honorary Research Associate 

 Smithsonian Institution 



(Publication 4544) 



CITY OF WASHINGTON 



PUBLISHED BY THE SMITHSONIAN INSTITUTION 



JULY 12, 1963 



