372 Proceedings of the Royal Physical Society. 



Wednesday, 26th March 1862.— Alexander Bryson, Esq., President, 



in the Chair. 



The following Donations to the Library were laid on the table : — 



1. Canadian Journal, New Series, No. 36, November 1861. — 

 From Canadian Institute. 2. First Report of a Geological Reconnois- 

 sance of the Northern Counties of Arkansas, made during the years 1857 

 and 1858. — From Geological Surveyor of Arkansas. 3. Fourth Report 

 of Progress of the Geological Survey of Missouri. — By G. C. Swallow, 

 1859. 



The following Communications were read : — 



I. Notice of Indian Insects exhibited at last meeting by Mr Elliot of 

 Wolfelee. By R. F. Logan, Esq. 



Although not present at the last meeting of the Society, 

 when Mr Elliot's beautiful drawings of Indian animals by 

 native artists were exhibited, I have since had the pleasure 

 of inspecting them, through the kindness of Dr Coldstream ; 

 and with reference more especially to the entomological 

 portion of the collection, I wish to bear testimony not only 

 to the intrinsic beauty and fidelity of the drawings, but also to 

 their high scientific value, as comprising the transformations 

 of many insects whose history has been hitherto unknown 

 to science. Besides figures of the larvae and pupae of many 

 of the Papilionidce, Pieridce, Nymp7ialidce, &c, some of 

 which have been already figured and described, the collec- 

 tion includes some most interesting details of the trans- 

 formations of the Eeterocera. Among the JSfoctuce, those of 

 the genera Hypocala, Hyblcea, Ophideres, Acliaea, Lagop- 

 tera, and Serrodes, are especially worthy of mention. The 

 larvae of Hypocala have no apparent affinity with those of the 

 Catocalidw, immediately before which they stand in Guenee's 

 arrangement. Those of Opliideres, of which Guenee re- 

 marks, 11 Je desirerais vivement connaitre les cliemilles de ce 

 genre singulier" are quite as remarkable as the perfect in- 

 sects. They are elongate and cylindrical, like those of the 

 Opliiusidm, and the anterior pair of ventral claspers is imper- 

 fect ; but instead of being attenuated posteriorly and ante- 

 riorly with a pair of small tubercles on the eleventh seg- 

 ment, the latter forms a large conical protuberance, as in 



