﻿1870.J 267 



Mr. Pascoe exhibited Nepharis alata, of Castelnau, from King George's Sound, 

 and remarked that it was identical with the recently described (Tr. Ent. Soc. N. 

 S. Wales) Hiketes thoracicus of King. 



A discussion took place on a question of nomenclature, raised by Mr. Pascoe. 

 It appeared that Dejean, in 1834, proposed the generic term Diwus, but gave no 

 description. This genus had been generally adopted, and even figured by Westwood, 

 but no description had actually been published until 1862, and then by Mr. Pascoe 

 himself. But, in 1852, Motschulsky had described another genus under the hybrid 

 term Biurus, recently corrected to Diwrus by Gemminger and von Harold. Mr. 

 Pascoe therefore enquired whether it would not be better to impose a new name in 

 lieu of Dejean's. The opinion of the meeting seemed to be that, having regard to 

 the peculiar circumstances, it would be inadvisable to adopt that course. 



Mr. Butler read a paper " on some Butterflies recently received by Mr. Swanzy 

 from West Africa." 



7t~h March, 1870. P. P. Pascoe, Esq., F.L.S., Vice-President, in the Chair. 



The Kev. K. P. Murray, of the Isle of Man, and M. J. C. Puis, of Ghent, were 

 elected Members. 



Professor Westwood exhibited a series of specimens of Locusts from the Hope 

 Museum, in connection with the question raised at previous meetings as to which 

 was the real migratoria of Linne. It appeared that there were two closely allied 

 European species, differing in the form of the pronotum. These had been de- 

 scribed and figured by Fischer (Orthop. Europ.) as migratoria, L., and cinerascens, 

 Fab. (with which latter Christii of Curtis was identical). The specimens bearing 

 the name migratoria in his possession were mostly very old, one, perhaps, having 

 belonged to Donovan; they seemed to be Fischer's cinerascens, but Professor 

 Westwood thought that these should really bear Linne's name — certainty being 

 unattainable, tradition should supply its want. 



o 



Mr. Smith held the opposite view, and had communicated with Professor Stal, 

 of Stockholm, who informed him that Fischer's migratoria was the only species 

 which, to his knowledge, had been taken in Sweden (Neither of these must be 

 confounded with the recently exhibited peregrinum. — Eds.). 



Mr. Stainton exhibited a bred specimen of Cosmopteryx Lienigiella from larvae 

 received from the Island of Oesel. He had also bred a British example from a larva 

 found near Cambridge. 



The Rev. H. S. Gorham exhibited (through Mr. Janson) an example of Sunius 

 neglectus, a species new to Britain. 



Mr. Muller exhibited a large gall, like an acorn or olive, on the leaves of a 

 species of Gnetum from India. 



Mr. Janson exhibited a collection of Butterflies sent by his son from Nicaragua. 



Dr. Wallace exhibited Herminia derivalis and a variety of Melitwa Atltalia 

 captured by Mr. Harwood, of Colchester. 



Dr. Wallace also exhibited a collection of silk-producing Saturnim and their 

 cocoons, with specimens of manufactured silk ; and urged upon the meeting the 

 necessity of extending this branch of industry in this country. He had found 

 B. Pernyi $ $ united, and had also found $ Pernyi in copula with $ Cecropia, 

 Polyphemus, and Yama-mai. Eggs produced from the union of Pernyi and Yama- 

 mai, had proved fertile ; the cocoons and larvse were more like those of the <J 

 parent than of the $ . 



Professor Westwood read " Descriptions of new species of Pselaphidod. 



