SCIENTIFIC SOCIETIES. 39 



Mr. A. D. Michael read a paper upon the association which he had 

 observed between certain Acarines of the family Gamasidce and certain 

 species of Atits. The author came to the following conclusions: — (1) that 

 there is an association between some Gamasids and Ants ; (2) that a species 

 of Gamasid usually associates with one or two species of Ant preferentially ; 



(3) that the Gamasids of Ants '-nests are not usually found elsewhere ; 



(4) that the Gamasid abandons the nest if the Ant does; (5) that the 

 Gamasids live upon friendly terms with the Ants ; (6) that the Gamasids 

 are not true parasites ; (7) that they do not injure the Ants or their young; 

 (8) that the Gamasids will not eat dead Ants, and are probably either 

 scavengers or messmates. 



A communication was read from Mr. Edward Bartlett, containing an 

 account of the specimens of Rhiuoceros from Borneo contained in the 

 Museum of Sarawak. 



A communication was read from Mr. T. T. Somerville, of Christiania, 

 containing notes on the Lemming (Myodes lemmus). — P. L. Sclater, Sec. 



Entomological Society of London. 



December 2, 1891— The Rt. Hon. Lord Walsingham, M.A., LL.D., 

 F.R.S., Vice-President, in the chair. 



Mr. Henry A. Hill, of 132, Haverstock Hill, Hampstead, N'.VV. ; 

 Mr. Frank Nelson Pierce, of 143, Smithdown Lane, Liverpool; and 

 Mr. Carleton F. Tufnell, of Greenlands, Border Crescent, Sydenham, S.E., 

 were elected Fellows of the Society. 



Dr. D. Sharp exhibited and commented on a number of photographs of 

 various species of Lucanidce belonging to M. Rene Oberthiir. 



Mr. C. G. Barrett exhibited a number of specimens of local forms and 

 varieties of Lepidoptera, taken by Mr. Percy Russ uear Sligo, including 

 Pieris napi, var. near bryonia ; Anthocharis cardamiues (male), with the 

 orange blotch edged with yellow, and yellowish forms of the female of the 

 same species; very blue forms of Polyommatus alsus; males of P. alexii, 

 with the hind margin of the under wings spotted with black, and very 

 handsome forms of the female ; also varied series of Agrotis cursoria, 

 A. tritici, A. valligera, Hydrcecia micacea, H. nictitans, Epunda lutulenta, 

 Hadena protect, Odontoptera bidentata, Cidaria immanata, C. tettata, 

 C. pyraliata, and Boarmia repandata. 



The Rev. S. St. John exhibited two specimens of Lycana argiad$t, 

 taken in Somersetshire by Dr. Marsh in 1884 ; three specimens of Deilephila 

 euphorbia, bred from larvae found feeding on Euphorbia paralias on the 

 Cornish coast in September, 1889 ; and a series of various forms of 

 Anchocelis pistacina, all taken in a garden at Arundel. Lord Walsingham, 

 Mr. Barrett, and Mr. McLachlan took part in the discussion which ensued. 



