IX 



affected the colour. Mr. Blackwall added tliat in the spring of 1867 he received from 

 India a species of Pholcus, described as P. Lyoni (Ann. and Mag. N. H., ser. 3, vol. 

 xix. p. 392), one specimen of which " presented the extraordinary physiological fact of 

 the union of the two sexes in the same individual." In this gynandromorphous 

 spider, the left side exhibited male and the right side female characters. 



Papers read. 



Mr. F. Smith read " Observations on the Economy of Brazilian Insects, chiefly 

 Hymenoptera, from the Notes of Mr. Peckolt, of Cantagallo." 



Mr. M'Lachlan read "A Monograph of the British Neuroptera-Planipennia,' 

 enumerating forty-nine species as inhabitants of the British Isles. 



February 17, 1868. 

 H. W. Batks, Esq., President, in the chair. 



Donations to the Library. 



The following donations were announced, and thanks voted to the donors : — 

 ' Tijdschrift voor Eulomologie,' 2nd series, vol. ii. parts 2—6, vol. iii. part I ; presented 

 by the Entomological Society of the Netherlands. ' Remarks on the Names applied 

 to the British Hemiptera-Heteroptera,' by F. P. Pascoe ; by the Author. 



Election of Members. 

 Linnaeus Cumming, Esq., B.A., and E. P. R. Curzon, Esq., both of Trinity 

 College, Cambridge, were severally ballotted for, and elected Members. 



Exhibitions, ^-c. 



Mr. M'Lachlan exhibited a living specimen of Lucanus cervus, found under 

 ground in an earthen or clayey cocoon : Mr. Backhouse, of Teddington, digging in 

 his garden, had turned up half a dozen of these cocoons, each containing a beetle and 

 the remains of the skin of the larva and pupa. It thus appeared that the beetle had 

 not gone under ground to hybernate, but the larva had descended into the earth and 

 had there undergone the changes to pupa and imago. 



Mr. A. E. Eaton remembered one or two such cocoons being dug up in the autumn, 

 about October, in a potato-fielcl, and these contained living stag-beetles. 



Mr. Janson also had dug stag-beetles out of earth, not wood ; and thought that the 

 specimens appearing in the spring were in fact hatched in the autumn, and remained 

 in their cocoons throughout the winter. 



Mr. Stainton compared the case to that of Cossus ligniperda, the larva and pupa 

 of which were specially adapted for their ordinary habitat in wood, but the larva some- 

 times, he believed in a stale of nature, and certainly in confinement, went under 

 ground to change, and formed for itself an earthen cocoon. There was no evidence 

 that the larva? of the goat-moth, which were not uni'requently found crawling about on 



c 



