32 



prevalence of the white banded form which Mr. Adkin had 

 noted at the last meeting ; and those from West Wickham 

 were of the usual suburban mottled form. He also exhibited 

 ova of Trachea piniperda, Panz., deposited in rows along the 

 needles of pine, from the New Forest. 



Mr. Adkin exhibited on behalf of Mr. Billups the following 

 Diptera : — 



Meigenia 7najascula, a species new to Britain. Captured 

 by Miss Billups in their garden at Dulwich, June 6th, 1893 ; 



Sciojnyza rufiventris, Mg., an exceedingly rare dipteron. 

 Captured by Mr. Beaumont in Ireland, September, 1893 ; 



Degeeria pulcliella, of which there is only one other recorded 

 specimen, bred by Mr. Adkin from Peronea maccana, and to 

 whose kindness he was indebted for the same ; 



Urellia eluta, Mg., a male of this very rare species, which 

 was captured while sweeping herbage at Lewisham. Also a 

 solitary specimen of the genus Phorbia, at present un- 

 determined ; 



Also galls of Dryophanta divisay Alder., with the maker and 

 one of its inquilines, or " burglars," i.e.^ Synergus allipes, Htg., 

 and five species of true parasites, or " murderers," which he 

 had bred from the same, namely, Mesopolobus fasciventris, 

 Syfitoniaspis caudatus, Eupelnuis Jirozonus, Decatoina biguttata, 

 and a solitary Chalcid, which he had not been enabled to 

 determine. 



Mr. Robert Adkin exhibited long series of Nocttia glareosa, 

 Esp., and N. augur, Fb., and read the following notes : — 



"iV. glareosa, although liable to but little variation of 

 pattern, appears to show considerable range in the tone of 

 colour. Taking the pretty, almost silvery, grey of the most 

 usual form as a base, we find the variation running in two 

 directions, the one towards black, the other to red. Thus, 

 commencing with the most northerly specimens, we find 

 among those from Shetland a very large percentage of very 

 dark grey, and almost completely black examples, while 

 among the Scottish mainland series, comprising Sutherland, 

 Aberdeen, Elgin, and Perthshire, a dark grey is the extreme, 

 and this only in a comparatively small number of the speci- 

 mens. Some of the Yorkshire examples also show a tendency 

 in this direction, while a smaller proportion have a decided 

 pinkish shade, but among the Kent, Devonshire, and North 

 Irish series this form becomes more pronounced, and the dark 

 grey disappears. In N. augur, what little variation there is 

 is also in the tone of colour, but whereas the Scottish and 

 South English series are singularly alike in this respect, 



