THE ENTOMOLOGIST. 
No. 150.] DECEMBER, MDCCCLXXYV. [Prior 6d, 
Descriptions of Oak-galls. Translated from Dr. G. L. Mayr’s 
‘Die Mitteleuropdischen Eichengallen’ by E. A. Fircu, Esq. 
(Continued from p. 255.) 
32. Aphilothrix collaris, Hart.—This incon- 
spicuous brown gall grows in the axils of the leaves 
of Quercus sessiliflora. It is hard, smooth, spherical 
or oval, and is, when mature, two to three milli- 
metres long, and at the end generally more or less 
conically pointed. In well-developed specimens 
there lies directly underneath the cone a shallow, 
zonal impression, which is frequently conspicuous 
from its lighter or darker tinge. One half, or rather 
more, of the gall is surrounded by the bud-scales. 
Some specimens are pale yellow, and entirely, or 
almost entirely, surrounded by the bud-scales, 
only showing their blunt point: very likely these 
are such as are inhabited by parasites. I do not 
know whether the fly has been bred by anyone 
except Hartig. Schenck states that the gall 
remains in the bud after the fly escapes. It is, 
however, doubtful whether this is always the case, g, 4. corzanrs 
for Schenck only found the galls in small numbers, _ in situ. 
and never bred the fly.—@. L. Mayr. a mexesked 
What I believe to be the gall of this speciesI jug 
have found in Kensington Gardens, London, and ¢. A _ section 
bred the gall-flies, but unfortunately lost them, cut through 
Since being in Essex I am not satisfied about [2?. >" 
this and the preceding species. Synergus nervosus 
and S8. palliceps are its inquilines; and Kaltenbach gives 
a Eurytoma verticillata as its parasite.—Z. A. Fitch. 
VOL. VIII. QP 
Fig. 32. 
