UNIVERSITY OF CALIFORNIA PUBLICATIONS 



TECHNICAL BULLETINS 



COLLEGE OF AGRICULTURE, AGRICULTURAL EXPERIMENT STATION 



ENTOMOLOGY 



Vol. 1, No. 7, pp. 301-346 July 20, 1917 



APHIDIDAE OF CALIFORNIA 



NEW SPECIES OF APHIDIDAE AND NOTES FROM 



VARIOUS PARTS OF THE STATE, BUT CHIEFLY 



FROM THE CAMPUS OF THE UNIVERSITY 



OF CALIFORNIA, BERKELEY, 



CALIFORNIA 



BY 



E. O. ESSIG 





UNIVERSITY OF CALIFORNIA PRESS 

 BERKELEY 



