120 THE ENTOMOLOGIST. 



M(irch 8th. — The President in the chair. Messrs. H. Robson 

 and H. A. Auld were elected members. Mr. R. Adkin exhibited 

 a variet}' of Euholia h'qnmctaria, the whole of the ground 

 colour of the fore wings being black, the whitish grey basal patch 

 and central fascia, on which latter the usual central spots were 

 very prominent, being the only markings visible, and having 

 correspondingly dark hind wings. The specimen was taken by 

 Mr. O. Dannenberg at Box Hill, July, 1886. Mr. C. H. Watson, 

 a variety of Phibalapteryx tersata from the New Forest, 1887. A 

 note was read by the Secretary from Mr. T. D. A. Cockerell, on 

 the origin of Gonopteryx cleopatra, wliich in his opinion arose as 

 a seasonal variation. Colias euj'ythevie of Boisduval, generally 

 distributed throughout the States, had on the fore wings an 

 orange patch on a yellow ground, precisely similar to that of G. 

 cleopatra ; there was however a seasonal form, keeivaydin of 

 Edwards, which emerged from hybernated pupse, and had the 

 orange patch much reduced, in some specimens being almost or 

 entirely suppressed. The seasons in America being very marked, 

 the summer and winter types must necessarily alternate ; but 

 supposing the Northern States to become uniformly cold, the- 

 Southern uniformly wai'm, what would happen ? Was it not 

 obvious that the winter form of C. eiirytheme would be per- 

 petuated in the north, while the summer form would be prevalent 

 in the south, thus producing species (for so they would then be 

 called) exactly analagous to G. cleopatra and rhamni ? Many 

 things pointed to the fact that the seasons were once extremely 

 marked in Europe ; and he had no hesitation in saying that in 

 those old days G. rhamni and G. cleopatra were but seasonal 

 forms of one and the same species. A further note from Mr. 

 Cockerell was also read with regard to Agrotis siiffusa, which he 

 said was abundant in America, and was generally known as A. 

 ypsilon, it having been desci'ibed under this name in 177G by Von 

 Rottenberg. This name, being prior to that of Hubner, unless 

 suflficient reason could be given to the contrary, should be 

 adopted in England. An additional synonym was A. telifera, 

 Harris, 1841. Mr. John T. Carrington read a paper, " British 

 Salmonidffi and their culture," which was followed by discussion. 

 — H. W. Barker, Hon. Sec. 



