UNITED STATES NATIONAL MUSEUM BULLETIN 279 



Larval Taxonomy of the 

 Troginae in North America 



with Notes on Biologies 



and Life Histories 



(Coleoptera: Scarabaeidae) 



CHARLES W. BAKER 



Department of Biological Sciences 

 Boise State College 



SMITHSONIAN INSTITUTION PRESS 

 WASHINGTON, D.C. 



1968 



