PROCEEDINGS 



OF THE 



CALIFORNIA ACADEMY OF SCIENCES 



Fourth Series 



Vol. VIII, No. 3, pp. 35-112, text figures 1-40 July 9, 1918 



III 



SOME JAPANESE APHIDID^^ 



E. O. ESSIG AND S. I. KuwAN-^^^ ^%^- 



/ ■■ '-* X 



"^ AUG 2 8 19]'' ^] 



/ 

 TABLE OF CONTENTS ^Ons,\ MuS^^ "'' 



Introduction ^6 



Abbreviations Used in Figures 37 



Host Index to the Species Listed 38 



Notes and Descriptions 44 



1 After the submission of this paper to the California Academy of Sciences and be- 

 fore it could be publVhed Prof. S. Matsumura's work entitled "A List of the Aphididae 

 of Japan, with Descriptions of New Species and Genera" appeared in the Journal of 

 the College of Agriculture, Tohoku Imperial University, Vol. VII, pt. 6, pp. 351-414, 

 Sapporo, July, 1917. In this paper several of the species which were previously de- 

 scribed by the authors are named so that some changes are necessary. In all such 

 cases the descriptions are included as originally written. Some uncertainty naturally 

 exists as to other species, but extensive study and more specimens would be necessary 

 for absolute certainty. It is remarkable that so few of our new species were described 

 by Prof. Matsumura. This indicates the great number of Japanese species remaining 

 to be worked up. ^ ^ „ 



E. O. EssiG. 

 Berkeley, Cal., 

 Nov. 6, 1917. 



^ The arrangement of the authors' names is alphabetic. 



July 9. 1918 



