THE KNTOMOLOGISTi 



219 



the same dark yellow in both sexes. The brightest specimen 

 I possess was taken in Tyrol, in September, 1874. 



1 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. 



C, Haddo Villas, Blacklieath. 



Fig. 57, 



Descriptions of Oak-galls. Translated from Dr. G. L. Mayr's 

 ' Die Mitteleuropaischen Eichengallen ' by E. A. Fitch, Esq. 

 (Continued from p. 197.) 

 57. Andricus iestaceipes, 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. noduli alone. Although 

 I found these galls by the hundred 

 during the months of August and 

 September, I could never solve this 

 problem. A. noduli, inquilines and 



parasites, I have bred from them, but The'spherioai gaUaTn TheTeaf 

 no A. testaceipes. *'^ '^°'^ °* ^- '="^*'°'^ '5^>- 



A. pelioli. 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 



Andricus testaceipes. 



