THE ENTOMOLOGIST. 
No. 135.] 
[Prick 6d. 
NOVEMBER, MDCCCLXXIV. 
Descriptions of Oak-galls. Translated from Dr. G. L. Mayt’s 
‘Die Mitteleuropéischen Eichengallen’ by Mrs. HuBERT 
HERKOMER née WEISE. 
18. Cynips Kollart.—The 
gall of this species appears 
on the oaks in the same way 
as that of Cynips tinctoria, 
from which, in many in- 
stances, it cannot easily be 
distinguished. Itis perfectly 
spherical, from twelve to 
twenty-three millemetres in 
diameter, of a _ brownish 
yellow colour,—rarely of 
a brownish red-yellow, — 
naked, smooth, and often 
without any unevennesses, 
but it has sometimes such 
isolated and minute warts as 
occur on the gall of Cynips 
tinctoria. The section ex- 
hibits a brownish yellow 
reticulation, consisting of 
thin-walled parenchyma and 
parenchyma-cells, so that the 
gall may be easily cut with 
a knife. No proper inner- 
gall, like that of Cynips 
linctoria, is to be found, 
Cyntps Korzanrt (and in section). 
although the gall-substance surrounding the oval larva-cell 
in the centre of the gall is harder, and has a radiate-striated 
VOL. VII. 
21 
