189H.1 97 



Dr. F. A. Dixey communicated a paper, entitled, " On the Phylogenetic 

 Significance of the Variations produced by Differences of "Temperature on Vanessa 

 Atalanta." The President, Mr. Merrifield, Mr. Poulton, Dr. Chapman, and Mr. 

 Tut.t took part in the discussion which ensued. 



March 8th, 1893.— The President in the Chair. 



Mr. Frank E. Beddard, M. A., F.R.S., of the Zoological Gardens, Regent's Park ; 

 Monsieur Edouard Brabant, of Chateau de Morenchies, Cambrai, France ; Mr. 

 Frank Bromilow, of Avalon, St. Maurice, Nice ; Mr. Henry Powys Greenwood, 

 F.L.S., of Harnham Cliff, near Salisbury ; Mr. Frederick Michael Halford, of 6, 

 Pembridge Place ; Lieutenant-Colonel Leonard Howard L. Irby, F.L.S., of 41, 

 Cornwall Terrace, Regent's Park ; Mr. ^ tram S. Ogle, of Steeple Acton ; Herr 

 Wilhelm Paulcke, of 33, Langstrasse, baden-Baden ; Mr. Louis B. Prout, of 12, 

 Greenwood Road, Dalston ; and Captain Savile G. Reid, of Foyle House, Alton, 

 were elected Fellows of the Society ; and Herr Pastor Wallengren, of Farhult, bei 

 Hoganas, Sweden, and Herr Hofrath Dr. Carl Brunner Von Wattenwyl, of Vienna, 

 were elected Honorary Fellows of the Society. 



Dr. D. Sharp exhibited a specimen of a fine Enoplotrupes, from Siam, which was 

 believed to be new, and which he thought Mr. Lewis intended to describe under the 

 name of U. principalis. The insect has great power of making a noise, and the 

 female seemed in this respect to surpass the male. 



Mr. W. F. H. Blandford said he wished to supplement the remarks which he 

 made at the meeting of the Society on the 8th of February last, on the larva of 

 Rhynchophorus. He stated that he had since found that only the first seven pairs 

 of abdominal stigmata were rudimentary. The posterior pair were well developed 

 and displaced on to the dorsum of their segment, which was thickly chitinised, and 

 bore a deep depression, on the margins of which the spiracles were situated. He 

 suggested that the absence of lateral spiracles was, perhaps, correlated with the 

 wetness of the larval burrows. Dr. Sharp and Mr. Champion made some remarks 

 on the subject. 



Mr. W. H. B. Fletcher exhibited a long series of bred Zygana lonicercB and Z. 

 trifoln, hybrids of the first generation, and hybrids of the second generation between 

 Z. trifolii, hybrid, and Z. lonicera, hybrid {(f. Ent. Mo. Mag., ante, pp. 53, 54). 



Mr. F. W. Frohawk exhibited a bred series of Vanessa Atalanta, showing the 

 amount of variation in the red band on the fore-wings of the female. In seven 

 specimens there was a white spot on this band, and in ten specimens it was absent. 



Mr. Elwes exhibited a large number of specimens of Chrysophanus Phlceas, 

 from various parts of Europe, Asia, and North America, with the object of showing 

 that the species is scarcely affected by variations of temperature, which was con- 

 trary to the opinion expressed by Mr. Merrifield in his recent paper " On the effects 

 of temperature in the pupal stage on colouring," &c. Mr. McLachlan, Mr. A. J. 

 Chitty, Mr. Bethune-Baker, Mr. Tutt, Mr. Barrett, and Mr. Frohawk took part in 

 the discussion which ensued. 



Dr. Sharp read a paper, entitled, " On Stridulating Ants." He said that 

 examination revealed the existence in ants of the most perfect stridulating or sound- 

 producing organs yet discovered in insects, which are situated on the 2nd and 3rd 

 segments of the abdomen of certain species. He was of opinion that the structures 



