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Mr, Blandford called attention to the recent discoveries 

 relating to the Tsetse fly, made by Surgeon-Major Bruce in 

 Zululand, which proved that this insect affected animals by 

 injecting them with a parasitic Protozoon, The parasite was 

 communicated from wild animals to domestic animals, and 

 was probably more widely distributed than was generally 

 believed, it, or a closely allied form, having been found in 

 India and England in sewer rats. He said that Siu'geon- 

 Major Bruce had proved that the Tsetse fly was pupiparous, 

 which was of importance as affecting the classification of 

 the Diptera. Dr. Sharp said that in his opinion the Tsetse 

 fly would cease to be troublesome with the advance of 

 civilization. 



Mr. C. G. Barrett exhibited the pupa-skin, cocoon and 

 eggs of Hesperia comma, L., found on chalk hills near Beading 

 by Mr. A. H. Hamm. He also exhibited and remarked on a 

 series of both forms of Tephrosia crepiiscidaria and T. biumhi- 

 laria, showing an unbroken line of variation from brown to 

 white and also to grey and black. In addition, he showed 

 several second-brood specimens of both forms obtained in the 

 past summer by Mrs. Bazett of Beading. Mr. Tutt and Mr. 

 Fenn made some remarks on the specimens exhibited. 



Papers, etc., read. 



Mr. Tutt read the following paper entitled " On the specific 

 identity of Ccenonympha iphis and C. satyrum." 



" In Staudinger's Catalog, p. 32, the author gives satyrion, 

 Esp. (= philca, Hb.) as a variety of Cctnonympha arcania. 

 He diagnoses it as ' var. alpina, minor, subt. fascia requali 

 alba, supra S s^pius [ ? rarius] tota fusca.' He mentions 

 as localities for it, ' Alps, Mountains of Central France.' 

 Kane, in • European Butterflies,' p. 183, follows Staudinger, 

 and adds : ' It is a variable form, and often approaches C. 

 arcania in more than one character.' This view has been 

 repeated to me more than once in correspondence by col- 

 lectors, who ought, at least, to have doubted that a species 

 like C. arcania should have two so different Alpine forms as 

 darwiniana and satyrion. 



" In referring to Mr. Lemann's translation of Frey's 



