Ixiv PROCEEDINGS OF THE 



The Athenaeum, from October, 1848, to April, 1849, inclusive. 

 Presented by the Editor. 



Du Systeme Nerveux chez les Invertebres dans ses Rapports 

 avec la Classification de ces Animaux. Par M. Emile Blanchard. 

 Presented by the Author. 



R. Gear, Esq., 19, Oxford Square, Hyde Park; 



C. S. Gregson, Esq., Liverpool ; 



B. B. Labrey, Esq., Manchester ; 



T. H. Allis, Esq., York; 



E. Brown, Esq., Burton-on-Trent ; 



R. F. Logan, Esq., Duddingstone ; 



G. Ransome, Esq., F. L. S,, F. Z. S., Ipswich ; 

 were elected subscribers ; and 



Herr Zeller of Glogau was elected an Honorary Member in 

 the room of C. J. Schonherr, deceased. 



Memoirs, Exhibitions, &c. 



Mr. S. Stevens exhibited the section of a stem of a thistle, 

 showing the pupae of Oncocera Cardui embedded in the pith on 

 which the larvae feed. 



Mr. Stainton exhibited, on behalf of Mr, T. H. Allis, a box 

 containing many specimens oi" Microlepidoptera from the collection 

 of Haworth. These specimens had enabled him to correct some 

 errors and to clear up many doubts in regard to some of Haworth's 

 species. 



Mr. J. W. Douglas exhibited some larvae of a species of Por- 

 rectaria on the leaves of Ballota nigra, the parenchyma of which 

 they eat, leaving the cuticle, thus giving the foliage a blotched 

 appearance. These larvae inhabit cases of a black colour formed 

 by them from portions of the leaves, enlarging them from time to 

 time as their growth requires it. 



Mr. Douglas stated that in the place where he had found these 

 larvae he had last year found Porrectaria lineola, Steph., in pro- 

 fusion, and he supposed that these might be the larvae of that 

 species. 



He also exhibited a specimen of Aphelosetia riifocinerea, Steph., 

 reared from a pupa which he had found last March in a web on 

 the stem of the common dock at New Brighton. He considered 

 this fact interesting, as giving a clue to the history of a species 

 about whose habits nothing was known, and which, though com- 

 mon in England, seemed unknown on the Continent. 



Mr. Hogg exhibited a portion of a very large nest of the com- 



