68 CALIFORNIA ACADEMY OF SCIENCES [Proc. 4th Ser. 



Aphis brassicae Linn. 



A good series of this species was collected on Aburana ( Pak- 

 choi cabbage), Brassica chinensis Linn., Fuknoka, June 7, 

 1913. Collected by M. Mori. Collection number 77. 



Aphis citricola Van der Goot 



1912— Mittel. Nat. Mus. 29, 2 Bieh. Jahrb. Hamb. Wissen. 

 Aust 29, pp. 273-273, fig. 1. (Original description). 



A very interesting species which agrees so well with the one 

 described by Van der Goot from Chile, where it was collected 

 on orange, that it is regarded as specifically identical until 

 proven otherwise. There are minor variations in color. Good 

 series were taken as follows : 



1. On orange, Shidzuoka-Ken, May 19, 1913. Collection 

 number 48. 



2. On young shoot of citrus tree, Tokyo, Aug. 1, 1913. Col- 

 lection number 97. 



Aphis gossypii Glover 



Figure 15 



This species is apparently abundant from the number of 

 times it was collected as will be seen from the following 

 records : 



1. On Kusagi, Clerodendron trichotomiim Thunb., Somei,. 

 Tokyo, May 7, 1913. Collection number 2. 



2. On unknown plant, Somei, Tokyo, May 10, 1913. Col- 

 lection number 13. 



3. On Petasites japonicus F. Schmidt (listed as P. japonica 

 Mig. ), Nishigahara, Tokyo, May 17, 1913. Collection 

 number 44. 



4. On orange, Shidzuoka-Ken, May 19, 1913. Collection 

 number 49. 



5. On Kiku, Chrysanthemum, species, Nishigahara, Tokyo, 

 May 22, 1913. Collection number 52. These are very 

 small specimens. 



