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THE ENTOMOLOGIST. 



together in the middle. The basal half is in shape like a 

 round cushion, is five milleraetres in diameter, and from two 

 to three millemelres in height. Its regular development is 

 prevented by the petiole producing an impression, into which 

 the stalk is pressed. The surface of the lower half is red- 

 brown, and generally distinctly reticulated with the darker- 

 coloured epidermis, which, in the development of the gall, 

 becomes cracked in that manner. The 

 epidermis itself is covered with scat- 

 tered, moderately long, fine, woolly, 

 white hairs. On the cushion-shaped 

 basal part rests the almost bud-like 

 upper part: the base of this part is 

 quite as thick, and of the same shape, 

 as the basal part of the gall itself; 

 towards the top, however, it is pro- 

 longed into a short conical point, and 

 into one or several fibrous projections, 

 which are generally again divided before 

 attaining the top ; this upper part of 

 the gall is covered with short woolly 

 hair, and shows at its lower, swollen 

 part a coarse longitudinal striation. In 

 section, the inner gall is found con- 

 tained in the cushion-shaped basal 

 part, and is united with the substance 

 of the gall all round. The bud-shaped 

 upper part is filled with a brown cellular tissue. This gall is 

 found on the weak twigs of shrubby Quercus pubescens and 

 Q. pedunculata. Neither Dr. Giraud nor myself was success- 

 ful in obtaining the gall-fly. — G. L. Mayr. 



In a note appended to his description of the gall. Dr. Mayr 

 gives a description of the gall-fly from a dead, but mature, 

 specimen, cut out of a gall. All the galls obtained by 

 Dr. Giraud were empty but two, and they contained the 

 larvae of a Calliraome. Dr. Mayr bred Ceroptres arator, but 

 probably from the twig, and not from the gall. The species 

 does not occur in Britain. — E. A. Fitch. 



G'YNirS GALEATA. 



