A new Aphis=gall on « Styrax japonicus 
SIEB: et LUCK > 
by Prof. C. SASAKI (Rigakuhakushi). 
The trees (Styrax Japonicus SIEB. et ZUCK.) called « Yegonoki » 
by the vernacular are widely distributed in Japan. In May or 
June, they bear very often a large number of galls on their bran- 
ches or branchlets. 
The galls are vulgarly called Nokoashi (Cat's foot) from their 
close resemblance to a cat’s paw. 
These galls are closely allied to those found on the Séyrax Ben- 
zoin DRYANDER collected by Mr. A. TSCHIRCH in the island of 
Java. They are produced by an Aphis named Astegopteryx styraco- 
phila as suggested by Dr. KARSH in Berlin. 
According to Mr. A. TSCHIRCH (1), the galls are formed on 
flowers or leaf-buds of Styrax Benjoin, as may be seen from the 
following extract from his work : « Blúthengallen (pl. XXV, 
fig. 1-4) entwickeln sich zu einer Zeit, wo die Hócker der Kelch-, 
(1) A. TscHIRCH, Ueber durch Astegofteryx, eine neue Aphidiengattung, 
erzeugte Zoocecidien auf Styrax Benzoin DRYAND. (« Bericht d. Deutsch. bot. 
Gesellschaft », 1890, VIII, pp. 48-52.) 
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