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« 
THE ENTOMOLOGIST. 
No. 145.] AUGUST, MDCCCLXXV. [Price 6d. 
Descriptions of Oak-galls. Translated from Dr. G. L. Mayr’s 
‘ Die Mitteleuropiischen Eichengallen’ by Mrs. Hubert 
HERKOMER née WEISE. 
(Continued from p, 147.) 
29. Aphilothrix solitaria, Fonse. 
(C. ferruginea, Hart.).—This woody, 
spindle-shaped gall is developed 
either without a pedicle, or with a 
short and thick one, on the axillary 
buds of Quercus pubescens and 
Q. sessiliflora. It is surrounded at 
the base by small bud-scales, and 
terminates in a style, which varies in 
length, and is often curved at the 
top: the blunt point of this style | APmmormrrk sorrarta. 
generally bears a small papilla or 
short cone. The gall is brown, and when fresh more or less 
covered with a yellowish brown wool]. In the interior of this 
moderately thin, but hard gall, we find a large oval cavity, 
which is the larva-cell. Its longest diameter is one centi- 
metre. The fly emerges in September, for on the 28th of 
that month I found on the oaks fresh galls of this species, 
showing the hole through which the fly had emerged.— 
G. L. Mayr. 
Three different species of Synergus are dwellers in the galls 
of this species, namely,—S. facialis and S. radiatus, which 
emerge in July; and S. vulgaris, which lives in the gall 
through the winter, not emerging till April of the next year. 
From one hundred galls of this species, collected by Von 
Schlechtendal, only four produced the gall-maker; the others 
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