THE ENTOMOLOGIST. 



No. 134.] 



OCTOBER, MDCCCLXXIV. 



[Price 6d. 



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

 ' Die Miltelemopaischen Eichengallen' by Mrs. Hubert 

 Herkomer n^e Weise. 



Fi-. 10. 



/■-^-y^ 



16. Cynips hungarica. — This 

 species produces a spherical, 

 rather hard yellowish brown 

 gall, thirteen to thirty- five 

 niillemetres in diameter. Over 

 the whole surface are scattered 

 small conical excrescences: 

 these are generally short, and 

 either obtuse or slightly point- 

 ed ; they are united by raised 

 keels, which are more or less 

 obtuse, and often rather in- 

 distinct. In some specimens 

 the excrescences are strongly 

 developed, while in others tliey 

 are very indistinct. A section 

 of the mature gall exhibits 

 a brown spongy parenchyma, 

 which has an irregular cavity 

 in the centre; the thin-walled 

 inner gall is sealed there on 

 a stalk proceeding from the 

 reticulation. Tiiis, which is 

 the largest one-chambered gall 

 observed by me in the country 

 near Vienna and in Hungary, 

 occurs on Quercus pedunculata, 

 falls off in the autumn, and is Cynits hungaeica (and in section). 

 VOL. VII. 2 F 



