254 



THE ENTOMOLOGIST. 



important specific characters than the female. A subsequent 

 correspondent, 'Anglo-African,' in the 'Field' of October 

 17th, 1874, speats of this spider being also found in another 

 locality; but his description of the nest, its great length, — 

 two feet six inches, — and its situation, show that it belongs 

 to a much larger spider, and one of quite a different genus, 

 probably to an undescribed species of Nemesia or Cteniza. — 

 O. P. Cambridge ; Bloxworih Rectory, August 20, 1875." 



I trust that the interesting subject of trap-door spiders 

 burrowing in the bark of trees, or at any rate utilizing the 

 fissures of bark for the purpose of constructing their silken 

 domiciles, will claim the attention of our correspondents in 

 South Africa, and especially of the Messrs. Woodward, who 

 have already done so much to illustrate the Natural History 

 of these little-known regions. 



Edward Newman. 



Fig. 30. 



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

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



(Continued from p. 172.) 



30. Aphilothrix globuli, Hart. — 

 This green spherical gall is found in 

 the terminal or axillary buds of Quer- 

 cus pubescens (and probably also of 

 other oaks) ; one-half or more of the 

 gall is covered with the bud-scales, 

 and has a diameter from 3 to 4'3 milli- 

 metres. At the point opposite the 

 base there is a wart (or a blunt cone) 

 of a yellow or rusty red colour. The 

 naked green surface of the gall is soft 

 when fresh, and shows a sappy sub- 

 stratum, which, however, dries up in 

 the autumn, and produces on the still 

 green surface reticular plications or 

 wrinkles. Inside the soft layer is the 

 woody inner gall, which contains a 

 larva-cell. The surface of this inner gall exhibits reticular 

 rings. According to Hartig the fly emerges in the month of 

 February. — G. L. Mayr. 



Aphilotheix globuli. 



In situ: a, detached; b, mag 



nified. 



II 



