50 THE ENTOMOLOGIST. 
following days. The pair figured—male, 3rd July; female, 
5th; the other two, a male and female, on the 2nd and 8th 
respectively. ‘These latter were dark, but not so strongly 
marked as the former. I may add the parent female was 
darker than the ordinary type.—B. W. Neave; 5, Highbury 
Grange, Highbury Park, N., February 3, 1876.”—Edward 
Newman. 
Descriptions of Oak-galls. Translated from Dr. G. L. Mayr’s 
‘Die Mitteleuropdischen Eichengallen’ by E. A. Fircu, Esq. 
(Continued from p. 42.) 
Fig. 38. 
GALL oF ANDRICUS INFLATOR (and section of the same). 
38. Andricus inflator, Hart.—This gall appears like a ter- 
minal swelling of the young shoots of Quercus pedunculata, 
and is clothed with leaves like any other twig. Its develop- 
ment is undoubtedly caused by the gall-fly laying its egg in 
the axis of the terminal bud. When the bud is developed 
in the spring, the top of the axil part remains white, its 
periphery being but little prevented from development with 
the leaves; an elongate cavity is exhibited, in a longitudinal 
section, at the lower part of which lies the small egg-shaped 
inner gall, like.an egg in a cup of corresponding dimensions 5 
the cavity is covered with a thin skin at the top. In June 
the fly breaks through the upper end of the inner gall and 
the top membrane. The empty gall continues growing until 
the autumn, and from its axillary buds several twigs are 
developed in the course of this and the next year. Professor 
Schenck calls the C. axillaris described by Hartig a variety of 
this species. Schenck has bred the fly, and found it identical 
