PROCEEDINGS 



OF THE 



CALIFORNIA ACADEMY OF SCIENCES 



Third Series 

 Zoology Vol. Ill, No. lo 



The Hypopygium of the 

 DoHchopodidge 



BY 



Robert E. Snodgrass 



With Four Plates 



Issued September 28, 1904 



SAN FRANCISCO 



Published by the Academy 



1Q04 



