352 s - MATSUMÜRA 
was formerly considered as a separate, independent joint. 
Postrhinarial—Th& proximal part of the* apical joint which was formerly 
considered as the penultimate joint. 
The sensory organs of the antennae were not considered so important 
before, but at present they are the most important parts employed for classi- 
fication, so I want here to explain some terms: 
Rfiinarium — Mostly one large, round or oval sensorium in the ultimate 
antennal joint, lying between the ante- and postrhinarial ; it is called also 
sensorium by some authors. 
Sensoria — Meaning the sensory pits or rings of the antennal joints (except 
the ultimate), which are also called the secondary rhinaria by some authors. 
By the term "winged viviparous female" in this paper is meant either 
the fundatrigeniae, virgogeniae or sexuparae, and the morphological distinc- 
tions between these individuals are not yet well characterized, and these gaps 
may be filled in the near future. 
In the classification of the Japanese Aphides 1 have had much help from 
Corner's paper, and the present list is arranged after his method. 
On this occasion I should like to express my cordial thanks to Mr. Jiko 
Adachi in Tamba and Mr. Shigeri Akakawa in Ivo, who have collected 
for me many valuable specimens for this study. I am also greatly indebted 
to Dr. Tokuichi Shiraki who has lulped me by sending some literatures 
and specimens for identification. My assistant, Mr. Toku Okuni, has drawn 
for this paper the accurate figures of the insects, for which I want to express 
my sincere gratitudes. 
