4176 Entomological Society. 



other was a large flattened cocoon, which, examined externally, appeared but as a 

 single structure, but when opened, was found to have been the joint production of two 

 larva. It was divided internally, by a septum, into two chambers, to which, however, 

 this double cocoon had but one outlet. One of the larvae had died before changing 

 to a pupa. The other had changed, and had afterwards produced the moth, but which 

 had been unable to liberate itself from the cocoon, owing to the obstacle opposed to its 

 egress by the septum. It had become impacted, and had died in the cocoon in its 

 attempts to escape through the outlet. 



Entomological Society. 

 December 5, 1853.— Edward Newman, Esq., President, in the chair. 



Donations to the Library and Museum. 

 The following donations were announced, and thanks ordered to be given to the 

 donors: — The ' Zoologist' for December ; by the Editor. The 'Athenaeum ' for No- 

 vember; by the Editor. The ' Literary Gazette' for November; by the Editor. The 

 1 Journal of the Society of Arts ' for November ; by the Society. The ' Philosophical 

 Transactions of the Royal Society,' 1853, parts 1 and 2; by the Society. ' On two 

 new Species of Calanidae, with Observations on the Spermatic Tubes of Pontella and 

 Diapotmus, &c/: by John Lubbock, Esq., F.Z.S. ; by the Author. 'On the De- 

 structive Powers of Scolytus destructor and Cossus ligniperda': by Captain C. J. Cox ; 

 by the Author. A specimen of Plusia bractea ; by R. S. Edleston, Esq. Two speci- 

 mens of a Sciaphila, greatly resembling S. Penziana, from Scotland; by John Scott, 

 Esq., of Renfrew. An extract of a letter from Mr. Henry Doubleday, announced that 

 if this Sciaphila, upon further examination, were proved to be a distinct species, he in- 

 tended to describe it. 



Election of Members. 

 R. G. Schofield, Esq., Glen Mohr Villa, Greenwich, and W. Groves, Esq., 12, 

 Morden Place, Lewisham Road, were balloted for, and elected Subscribers to the 

 Society. 



Distribution of Duplicate Zepidoptera. 

 The Secretary announced that the Council had determined to distribute the 

 Society's duplicate specimens of British Lepidoptera among the Members. 



Exhibitions. 



Mr. Westwood exhibited a piece of honey-comb sent to him by a correspondent, 

 in which the queen had laid droue-eggs in worker-cells, which had been enlarged for 

 this purpose. 



Mr. Curtis exhibited some Hymenoptera and Diptcra he had received from M. 

 Leon Dui'our and Signer Panscriui, most of them valuable as typical specimens of spe- 

 cies described in the ' Anualcs de la Sociele Entomologique de France.' In the box 

 also was Tryphon nigriccps, Grav., a species new to this country. It was bred by Mr, 



