146 



THE ENTOMOLOGIST. 



The gall is not deciduous, and the flies appear in March or 

 April.— G. L. Mayr. 



Herr Kollar and Dr. Mayr both give Synergus melanopus 

 as an inquiline of this gall. One specimen each of S. apicalis 

 and Ceroptres arator have also been bred by Dr. Mayr from 

 this gall, which has not occurred in Britain. — E. A. Fitch. 



Fig. 28. 



"•^aV^JiSSa*- 



Aphilotheix gemm^. 



28. Aphilothrix gemmce^ L. (C. fecundatrix^ Hart,). — 

 This gall, in shape not unlike the strobile of the hop or 

 larch, grows in the axils of Quercus pedunculata, Q. sessili- 

 flora, and Q. pubescens. It is about the size of a cherry, 

 seldom as large as a small walnut. It consists of a much com- 

 pressed axis, to which the more or less hairy elongate scales 

 are attached, and appear more densely crowded. The outside 

 and lower scales are oval or oval-triangular ; those lying on 

 the top or inside are lance-shaped or thread-like. The egg- 

 shaped inner-gall is situate at the end of the short axis; 

 generally the scales surround it so completely that it is not 

 visible at all, or at any rate only the top of it is to be seen. 

 The inner gall is hard ; has, when fully developed, a length 

 of eight to nine millemetres, is flattened at its base, and shows 

 at the opposite (upper) extremity a small circular impression, 

 on which rests a very small cone with a shining vertex. If 

 hindrances occur in its regular development it sometimes 

 happens that this imprint, though near the top of the inner 



