VOLUME THREE 



NUMBER ONE 



Journal of Intomologg 



FEBRUARY 1911 



Contents 



1. ESSIG. E. O. 



2. ESSIG. E. O. 



3. DAVIDSON. W. M. 



4. ESSIG. E. O. - 



5. ESSIG. E. O. 



6. BANKS. NATHAN 



7. CRAWFORD. D. L. 



8. GRINNELL. FORDYCE 



- The Use of Sodium Cyanide 



Natural Enemies of Citrus Mealy BuS III. 



Aphudidae of Placer County 



Aphidldae of Southern California V. 



Notes on Coccidae VI. 



The Ptialangida of California 



American Psyllidae III (Triozinae) 



- West Coast News Notes 



PUBLISHED BY THE 



ipparttttfiit of Itology of f omnna (UoUpgp 



A. J COOK, D. Sc. Head Professor 

 CLAREMONT, CALIFORNIA, U. S. A. 



