617378 



Peckham, George Williams 

 1905b 



Wasps, social and 

 solitary. 



QL568 



Peckham, George Williams 



Wasps, social and 

 solitary. 



AGRICULTURAL LIBRARY 



UNIVERSITY OF CALIFORNIA 



CITRUS RESEARCH CENTER AND 



AGRICULTURAL EXPERIMENT STATION, 



RIVERSIDE, CALIFORNIA 



