324 THE ENTOMOLOGIST. 



SOCIETIES. 

 Entomological Society of London. — Wcdnesdai/, October 'lOth, 

 1909.— Dr. F. A. Dixey, M.A., M.D., President, in the chair.— Mr. 

 Alfred Newstead, of the Grosvenor Museum, Chester, was elected a 

 Fellow of the Society. — The Seci-etary announced that Mr. G. T. 

 Bethune-Baker and Dr. Malcolm Burr had been elected members of 

 the Council in the place of Mr. G. A. K. Marshall, and Mr. R. 

 Shelford, resigned. — Mr. W. G. Sheldon exhibited series of the butter- 

 flies collected by him at Budapest and Herculesbad during the past 

 summer, including Chnjsophanus dispar, var. rutilus, C. alciphron, 

 C. thersamon ; Plebeiiis argyrognomon, Polyommatus orion, gen. vern. 

 ornata ; Melitaa trivia; Brenthis hecate ; a,nd Pyrg us orbifer. — The 

 Rev. G. Wheeler brought for exhibition series of butterflies taken by 

 him this year in Central Italy. They included a very fine aberration 

 of Melanargia galatea, the left upper wings almost entirely black ; 

 the right side much coloured ; and examples of Agriades thetis (bellar- 

 gus) var. -polonus, ZIL, from Assisi. — Mr. J. W. Tutt gave instances 

 of the occurrence of var. polonus, stating that he had himself found 

 it at Cuxton, Kent, where it flew in company with A. thetis, and is 

 undoubtedly a hybrid between that species and A. corydon, the geni- 

 talia being similar, and the food-plants identical. — Mr. G. Talbot 

 showed a remarkable new Lycaenid butterfly from the Cameroons — 

 now in the collection of Mr. W. J. Adams — probably constituting a 

 new genus. The neuration most resembles that of the genus Aslauga, 

 Kirby, but varies chiefly in the different place of origin of the sub- 

 costal nervures of the fore wing, and in the scalloped margin of the 

 hind wing. — Mr. J. W. Tutt exhibited examples of Sjnlosoma viendica 

 bred by Dr. Chapman from the ova found at Hy^res, Var., the females 

 mostly normal, but some with a well-defined black border round all 

 the wings. — Mr. W. J. Kaye exhibited series of the two species of 

 HeUconius — H. chestertonii and H. ^veymeri from Western Colombia. 

 The series of H. weymeri included beautiful transitional forms to the 

 aberration gustavi in which all trace of the fore wing markings had 

 vanished. He said that probably there was some common influence 

 at work to produce a black fore wing, as this phenomenon was found 

 in several other species of HeUconius from Colombia, particularly in 

 the Canea Valley. HeUconius doris in both its red and blue hind 

 winged forms produced black fore wing aberrations known as abtecta. 

 HeUconius ismenius also occasionally produced much darkened fore- 

 wings. — Dr. T. A. Chapman gave the results of some temperature 

 experiments made by him upon the larvae of Pieris hrassiccB. Some 

 at bOi^ Fahr. took four or five or even more days to pupate. Others 

 at 86° had all pupated in forty-eight hours in each lot so treated. 

 The pupation of a number seemed to be so accelerated that they had 

 not time to make their suspension complete or correctly, and of these 

 not a few did not pupate satisfactorily ; the girth catching them in 

 an awkward place, or the larval skin unsuccessfully passing it, &c. 

 After sixteen days there is no sign of any of these making an autumn 

 emergence, though, of the hundi'eds of ichneumons — Apanteles glo- 

 meratus — a few dozens came out at the end of eight or nine days 

 from capture of larvae ; or eight from escape of ichneumon larvaB 



