﻿EXCHAN< 



VOLUME TWO 



NUMBER THREE 



Pomona (Eolbg? 

 iourttal of lEntomologg 



SEPTEMBER 1910 



1. PIERCE. WRIGHT M. 



2. ESSIG, E. O. 



3. ESSIG. E. O. 



4. SMITH. JOHN B. 



5. HALL. H. V. M. 



S. COOLIDGE. KARL R. 



7. COOLIDGE. KARL R. 



8. ESSIG. E. O. 



9. GRINNELL, FORDYCE 



Contents 



Fumigation studies III 



Spraying for the Citrus Mealy Bug 



Natural Enemies of the Citrus Mealy Bug II. 



The Noctuidae of California 11. 



A Phytoptid Gall on Artemisia 



- - - - A New Spider 



On Argynnis atossa Edwards 



Variations in Trifidaphis radicicola 



- West Coast News Notes. 



PUBLISHED BY THE 



ippartmrnt of Itology of Pomona OloU^g? 



CLAREMONT, CALIFORNIA, U. S. A. 



