49 



of Axtlwna hloiiieii taken in the Chalfont Woods during the Field 

 Meeting on July 25th. 



Mr. T. H. Grosvenor exhibited six males of Aiiriailes t/ietis of 

 six quite distinct shades of blue, one of which showed a considerable 

 number of irregularly scattered black scales on the disc of the 

 wings, a form not noted previously ; also a series of very blue 

 females, some of which were the ab. ceroiiK.^, a form rarely taken in 

 Britain. 



Mr. K. G. Blair exhibited a living Papilio jiodaliriiis, bred from 

 an ovum found in the S. of France. He also shewed a specimen of 

 the Orthopteron, trnjllns bipunctatus, taken in the docks and 

 probably of African origin ; and pointed cut that it differed from 

 the common field-cricket, Cr. cauiiwstria, in having its wings perfect 

 and not aborted. 



Mr. Withycombe exhibited stereoscopic photos of the cylindrical 

 eggs of a flemipteron, of the Tineid Harjiijiteri/.r xijloxtella, and of 

 the cocoon of the Neuropteron Henierohins sHbuchnlosKs. 



Mr. Tonge exhibited a specimen of Faran/e aei/i'iia bred from an 

 egg laid by a female captured at Chalfont Road on June 25th, 

 probably an example of the third brood. The life-cycle was 

 completed in about six weeks. 



Mr. 0. R. Goodman exhibited series of two distinct races of J-Jrehia 

 ti/ndariix, one a large, darkly coloured race taken by himself at La 

 Grave in the Swiss x\lps this year, and the other taken by the late 

 Mr. A. E. Gibbs in the Engadine, representing a smaller, paler, 

 and thinner scaled race. 



Mr. Goodman reported that he had been to the New Forest, 

 where collecting was quite disappointing. Everything was worn 

 and scarce, and of the butterflies he only saw (Toneptcnj.v r/iaiinii, 

 Dn/a^i jiaphia, lliiijiarcliia seniele, iljihii'pht'le til/ioniis and Adupaea 

 jiara. 



AUGUST '25th, 1921. 



Mr. Stanley Edwards exhibited the black "cherry-aphis" 

 {Myzits cerasi) which had occurred near Blackheath ; also the 

 green-house "white-fly" Alennnks vaporarioriun, which had been 

 attacking tomatoes grown under glass. It had been suggested 

 that fumigation with hydrocyanic acid, a powerful poison, was 

 effective, but to avoid any deleterious residue, any good insecticide 



