88 THE ENTOMOLOGIST, 



way as the cotton-seed wool. We sometimes find on a fully 

 developed catkin one or more Howers deformed into a small 

 ball, a single gall surrounded with the hairs. In many cases 

 I have bred A. ramuli from these; but last year from such 

 galls, which occurred on Quercus seasiliflora, I bred in the 

 third week of May a gall-fly which belonged to another 

 species, and differed from it in having a black head and 

 thorax : the abdomen brown above, yellow below ; the 

 antennae yellow at the base, with the first half brown, and 

 with yellow legs. But still further breeding is necessary in 

 order to acquire more knowledge of it. The yellow gall- 

 flies appear towards the end of May and beginning of June. 

 — G. L. Mayr. 



I have had more specimens of this "woolly" or "cotton" 

 gall of the oak sent to me to name than of any other species. 

 It is very widely distributed, and generally common in 

 Britain. It has been recorded from five Scotch counties, the 

 most northern of which are Aberdeen and Inverness-shire. 

 From galls collected on 7lh June (1875) the first, A. ramuli, 

 emerged on the 24th June; and it continued to do so in 

 abundance till the second week in July. The parasites bred 

 by me were Olynx gallantm, L., in great abundance : these 

 all emerged the last week in June. Later came two species 

 of Pteromalus, and a few specimens of a small green 

 Callimonie, with the ovipositor slightly shorter than the 

 body. These may be a variety of C. auratus, Fonsc, which 

 is mentioned as a parasite of this species in Dr. Mayr's 

 monograph. I also bred several Diclyopteryx LceJIingiana 

 from these galls ; and Mr. Walker mentions Anthomyin 

 {Homalomyia) canicularis as a dweller in them. Mayr 

 remarks on the scarcity of Syvergi, and says he only bred 

 three specimens of S. facialis, H., and nine of S. radiatus, 

 Mayr, although he had hundreds of the galls. I can confirm 

 this, as amongst my numerous stores I do not find a single 

 Ramuli-hred Synergus. He also bred two specimens of 

 Ceropires orator, H., which emerged at the same time, viz., 

 June ollhe first year. — E. A. Fitch. 



COLLECTED OBSERVATIONS OX BRITISH SAWFLIES. 

 By the late Edward Newman. 



(Continued from p. 3S.) 

 Proceed we now again to divide the Hexapods by meta- 

 morphosis and wing-character. Having once fully explained 



