THE ENTOMOLOGIST. 219 
the same dark yellow in both sexes. The brightest specimen 
I possess was taken in Tyrol, in September, 1874. 
I trust the remarks I have made may elicit further commu- 
nications on the colouration of the females of C. Hyale, as I 
feel, in common with the views entertained by my lamented 
friend, the late Editor of the ‘ Zoologist’ and ‘ Entomologist,’ 
that many of us have too hastily assumed that the yellow 
specimens of C. Hyale were all males, and the white all 
females. 
J. JENNER WEIR. 
6, Haddo Villas, Blackheath. 
Descriptions of Oak-galls. Translated from Dr. G. L. Mayr’s 
‘Die Mitteleuropdischen Eichengallen’ by E. A. Fircu, Esq. 
(Continued from p. 197.) 
57. Andricus testaceipes, Hart.— 
This gall is formed by a swelling of 
the petiole, or a part of the midrib of 
the leaves of Quercus sessiliflora, in 
May. The larva-cell is situated in the 
centre; in many cases, however, the 
gall-parenchyma contains several dis- 
persed inner galls, each containing a 
larva of Andricus noduli. The ques- 
tion, which still remains unanswered, 
is whether such petiolar galls were 
originally produced by A. testaceipes, 
and A. noduli has only introduced its 
eggs, or whether the galls are primarily 
produced by A.nodulialone. Although 
1 found these galls by the hundred 
during the months of August and 
September, I could never solve this 
problem. A. noduli, inquilines and 
: ANDRICUS TESTACEIPES. 
parasites, | have bred from them, but The spherical galls on the leat 
no A. testaceipes. are those of A. curvator (56). 
A, petioli, Hart.—This species is, in fact, A. noduli, 
according to typical specimens in the zoological cabinet 
at Vienna. Most Hymenopterists have taken the specimens 
of A. noduli, bred from these swellings of the petiole, for 
