The Zoologist — May, 1874. 4003 



fossorial as is the case with some memhers of the family. The great lateral 

 expansion of the margins of the abdominal segments is without a parallel 

 in any known perfect insect of the group. The author concludes by tracing 

 the relations of Latreille's genus of Branchiopod Crustacea, Prosopistoma, 

 according to the observations of N. and E. Joly, two French entomologists 

 (father and son), who have rediscovered the creature, and who point out 

 that there is scarcely any doubt as to the genus having been founded on the 

 aquatic conditions of some species of Ephemeridse. 



Some discussion as to the relationships of Oniscigaster took place, in 

 which the Rev. A. E: Eaton and Sir John Lubbock took part. 



Entomological Society of London. 



April 6, 1874. — Sir Sidney Smith Saundhes, C.M.G., President, in 

 the Chair. 



Donations to the Library. 



The following donations were announced, and thanks voted to the 

 donors: — 'Proceedings of the Royal Society,' no. 150; presented by the 

 Society. ' Proceedings of the Linnean Society of London, Session 

 1873 — 74 ;' by the Society. 'L'Abeille,' tome ix., livr. 7 and 8 ; by the 

 Editoi-. ' Newman's Entomologist ' and ' The Zoologist,' for April ; by the 

 Editor. ' The Entomologist's Monthly Magazine,' for April ; by the Editors. 

 ' Exotic Butterflies,' part 90 : by the Author, W. C Hewitson, Esq. 



Election of Members. 

 Messrs. W. Garneys, M.R.C.S., of Repton; Philip B. Mason, M.R.C.S., 

 of Burton-on-Trent ; and Nathaniel C. Tuely, Esq., of Wimbledon Park, 

 were severally balloted for and elected Ordinary Members. 



Exhibitions, dc. 

 Mr. Frederick Smith communicated to the Society the fact of his having 

 captured seven specimens of Andrena tibialis, on Hampstead Heath, on 

 the previous Friday, April 3rd, two being females and five males. One of 

 the females had the exuviae of two males of Stylops remaining in the abdo- 

 men, the other female had had one male of Stylops, and also a female which 

 of course remained in the abdomen of the bee. Of the male Andrense, one 

 contained two females, a second having one of the same sex remaining in 

 its abdomen. Mr. Smith mentioned this circumstance to give collectors of 

 Coleoptera an opportunity of capturing the rare Stylops; and recom- 

 mended searching for Stylopized bees between the hours of nine and 

 twelve in the morning, as, according to his experience, the Stylops always 

 emerged from the body of the bee on the day on which the latter first 

 quitted its nest, should the day be bright and sunny ; and he also mentioned 



