66 



without the reddish stripe, having two narrow pale sub- 

 dorsal lines instead. The specimen exhibited was bred 

 from a larva without the reddish stripe, which may be a 

 sexual distinction, confined to the larvae of males. He also 

 exhibited three specimens of Helix (Gonyodiscus) rotundata 

 from Folkestone Warren, one of the typical coloration and 

 two of the var. alba, M. T., which is very pale and without 

 markings ; and two specimens of Clausilia rolphii, from near 

 Shepherd's Well, Kent. All taken by Mr. George Sich, 

 1908. 



Mr. Newman exhibited a living larva of Smerinthits 

 ocellatus X Amorpha popxdi, and called attention to the facts 

 that the horn was not blue, that the spiracles were not so 

 distinctly pink as in S. ocellatus, and that the larvae were of 

 two shades of green. He then exhibited a bred specimen of 

 Argynnis papJiia, var. valesiua, and very fine bred specimens 

 of Boarmia repaudata, var. conversaria, produced in three 

 generations, and also yellow forms of Calliniorpha dominula 

 also bred of the third generation. The original parents of 

 the last species were a red and a yellow form. The progeny 

 were all red with not a single yellow form, while in the 

 third year only yellow forms had been bred. 



Mr. Robert Adkin exhibited series of Xylina semibrunnea 

 and X. socia. He said that at a recent meeting Mr. South 

 had asked whether a ready means of differentiating the two 

 species could be suggested. The series exhibited were from 

 several localities, and had been sent to him, in several 

 instances certainly, under a wrong identification ; but he 

 thought there was no great difficulty in assigning the correct 

 name to any individual specimen. Perhaps the shape of 

 the fore-wings was some guide, but this appeared to him to 

 be unreliable in some cases, and he preferred to rely upon 

 the presence of the black blotch near the anal angle of the 

 fore-wings, and the absence of any distinct band from the 

 underside of the hind-wings as indicating semibrunnea ; 

 whereas even in the most darkly marked examples of socia 

 he failed to find any distinct indication of the black blotch, 

 though the dark band on the underside of the hind-wings 

 appeared always to be present. He thought these two 

 characters, taken in conjunction, might be relied upon as a 

 means of differentiation. 



Mr. South exhibited the same two species, and called 

 attention to the following points of difference : — 1. The line 

 present on the inner margin of X. semibrunnea was never 

 noticed in X. socia. 2. The abdominal tufts of the former 



