xli 



structural details. On a future occasion the Author hopes to give a detailed 

 account of the organization and development of some characteristic British 

 species of the Family. 



2 January, 1871. 

 A. R. Wallace, Esq., President, in the chair. 



Additions to the Library. 



The following donations were announced, and thanks voted to the 

 donors : — ' Tijdschrift voor Entomologie,' ser. 9, vol. v. Nos. 3 — 6, vol. vi. 

 No. 1; presented by the Entom. Soc. of the Netherlands. ' Nederlandsche 

 Tnsecten ' (continuation of Sepp), ser. 2, vol. ii. Nos. 39 — 50, vol. iii. 

 Nos. 1, 2 ; by the Author, Dr. Snellen van Vollenhoven. ' Stettiner 

 Entomologische Zeituug,' 1871, Nos. 1 — 3 ; by the Entom. Soc. of Stettin. 

 * Resume dune nouvelle Classification des Cordulines ; ' by the Author, 

 M. E. de Selys-Longcharaps. Hewitson's 'Exotic Butterflies,' part 77; 

 by Mr. W. Wilson Saunders. ' The Natural History of the Tineina,' vol. 

 xii. ; and ' The Entomologist's Annual,' for 1871 ; by Mr. Stainton. * The 

 Zoologist,' for January ; by the Editor. ' The Entomologist's Monthly 

 Magazine,' for January ; by the Editors. 



By purchase : — ' Bericht der Entomologie, 1867 — 68,' 1st part; * Record 

 of Zoological Literature,' 1869, Part 2 (Arachnida, Myriopoda, Insecta). 



Election of Member. 



Alex. Milton Ross, Esq., M.D., of Toronto, was ballotted for, and elected 

 a Member. 



Exhibitions, dc. 



Mr. Butler exhibited several species of Lepidoptera, part of a collection 

 containing some novelties and various rarities, recently sent to Mr. Swanzy 

 by Mr. Ussher, from Fantee, West Coast of Africa. Amongst them was a 

 Brahmsea, allied to B. Lucina, but differing in its comparatively shorter and 

 less arched front wings and more pronounced markings, the central white 

 band more continuous and on the hind wings half the width of that in B. 

 Lucina and not macular, in the narrower discal series of dark wavy lines 

 and the obsolescent character of the submarginal ocellations near the apex 

 of the front wings; Mr. Butler regarded it as a new species, intermediate 

 between B. Lucina and lunulata, and proposed to call it Brahmfea Swanzii. 

 There was also a new species of Massaras, M. virescens, allied to M. mari- 

 tima. And Mr. Butler made some remarks on the mimicry of Danais 

 Leonora by Godartia Eurynome, and of Belenois Sylvia by Mylothris 

 Agathina (especially the male) — the latter being remarkable as a case of 



