THE ENTOMOLOGIST. 



No. 157.] 



JULY, MDCCCLXXVI. 



[Phice Gd. 



Descriptions of Oak-f/alls. Translated from Dr. G. L. Mayr's 

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



(Contiuued from p. 124;.) 



50. Dryophanta longiventris. 

 Hart. — Up to this time 1 have 

 only found this gall on the com- 

 mon oak. It agrees with the 

 last-described species in size, 

 shape, substance, surface, at- 

 tachment, and inner structure, 

 but differs from it in colour. 

 The gall of this species is red, 

 and has rather broad, often a 

 little raised (rarely projecting 

 like papillae), mostly circular, 

 ^^ yellow stripes. x\nother small 

 distinction is that it is flattened 

 at the base. Should tiie gall 



^¥f^j- 51 be gathered in an unripe state 



it shrivels up between the rings, 

 so that the rugose surface ex- 

 hibits red furrows, with yellow 

 tortuous borders ; whilst the galls 

 of D. folii would, in such cases, 

 exhibit irregular tubercles. Tlie 

 gall appears at the beginning of 

 June. Herr von Schlechtendal 

 states the flight time of the gall-fly as varying from the beginning 

 of August to the end of October. I found great numbers of 

 this species in the Leithagebirge mountains, but only bred a 

 single fly in the winter, and extracted a living specimen from 

 f)ne of the galls in November. — G. L. Mayr. 



50. Dryophanta loxgiventris. 



51. D. DivisA ' 53. D. actAma 

 (anil in section). (and iu section). 



