109 



species for comparison, and read notes respecting them 

 (printed in full at the end of the Proceedings). 



MARCH i2tk, 1891. 

 W. H. TUGWELL, Esq., Ph.C, President, in the Chair. 



Mr. E. F. Elton was elected a member. 

 Mr. Robinson exhibited two specimens of a Pygcsra, which 

 he thought were dark forms of Pygcsra curttda, L. He said 

 they were bred by a collector at Sittingbourne, and sold for a 

 trifle ; and he wished the opinion of members as to whether 

 they were or were not curtula. Mr. Tugwell and Mr. Car- 

 rington said they had seen the form before, and they were 

 generally considered to be a variety of P. curtula. Mr. Tutt 

 pointed out that the transverse lines were identical with the 

 transverse lines oi curtula, and so far as he knew there was no 

 Continental species closely allied to curtula. 



Mr. Tugwell exhibited series of Hydrocampa nymphceata, 

 L., from Kent and Yorkshire. The Yorkshire specimens 

 being many shades darker than those from Kent. 



Mr. R. Adkin exhibited PcBdisca solandriana, L., bred from 

 larvae feeding in shoots of birch received from Aberdeen ; and 

 on behalf of Mr. W. Smith of Paisley, white and dark- 

 blotched varieties of the same species, and an unusually pale 

 form of Crainbus pratellus, L. ; also an extremely varied series 

 of Triphcena comes, Hb. 



Mr. R. South exhibited from the Cabinets of Mr. Leech, 

 Vanessa urticce, L., to illustrate the geographical distribution 

 and local variation, including the Corsican form known as 

 ichnusa, Bon., more or less typical specimens from America, 

 specimens from Cashm.ere, N.W. China and Japan ; the 

 Japanese specimens being curiously banded. It was in- 

 teresting to note that a form from Lapland appeared to be 

 intermediate between the Japanese and ordinary European 

 forms ; some of the Chinese specimens were very large. 



Mr. T. D. A. Cockerell read the following notes on the 

 variation of Phasianella pullus, L., and Littorina rudis. Mat., 

 in South Wales : — 



" In 1887 Mr. F. W.Wotton sent me some forms oi Littorina 

 rudis from LlanelayS, Glamorgan ; and this year Mr. Billups 

 has kindly submitted to me some specimens of Phasianella 

 found in shell-sand brought by Mr. Barrett from Pembroke, 

 S. Wales; so that I am able to give a short account of the 

 mutations of these polymorphic species as they occur on the 

 South Welsh Coast. 



