Aquatic Insects 



* 



of California 



WITH KEYS TO 

 NORTH AMERICAN GENERA 

 AND CALIFORNIA SPECIES 



Edited by ROBERT L. USINGER 



W. C. BENTINCK 

 H. G. CHANDLER 

 W. C. DAY 

 D. G. DENNING 

 K. S. HAGEN 

 S. G. JEWETT, JR. 

 W. H. LANGE, JR. 

 IRA LA RIVERS 

 J. D. LATTIN 

 H. B. LEECH 

 A. E. PRITCHARD 

 D. B. SCOTT, JR. 

 R. F. SMITH 

 ALAN STONE 

 R. L. USINGER 

 W. W. WIRTH 



UNIVERSITY OF CALIFORNIA PRESS 

 BERKELEY AND LOS ANGELES • 1956 



