SCIENTIFIC SOCIETIES. 199 



to show the structural peculiarities, upon which Dr. Sharp, Mr. Champion 

 and Mr. Jacoby made some remarks. 



Mr. Osbert Salvin exhibited a series of mounted specimens of the 

 clasping organs in the male of several species of Hesperidce. 



Dr. Sharp exhibited, for Mr. F. D. Godman, a collection of Orthoptera 

 recently made in the Island of St. Vincent, West Indies, by Mr. H. H. 

 Smith, the naturalist sent to that Island by Mr. Godman in connection 

 with the operations of the Committee appointed by the British Association 

 and the Koyal Society for the investigation of the Fauna and Flora of the 

 Lesser Antilles. It was stated that the collection had recently been referred 

 to, and reported on by, Herr C. Brunner von Watteuwyl and Professor J. 

 Redtenbacher. 



Mr. J. W. Tutt exhibited and remarked on a series of various forms of 

 Orrhodia vaccinii and 0. (spadicea) ligula. 



Mr. C. G. Barrett exhibited and made remarks on a series of specimens 

 — including some remarkable varieties — of Bombyx quercus and Odonestis 

 potatoria. A long discussion ensued as to the probable causes of the varia- 

 tion exemplified, in which Mr. Tutt, Mr. Jacoby, Mr. Poulton, Mr. H. Goss, 

 Mr. Salvin, Mr. Bethune-Baker, Dr. Sharp, and Mr. Distant took part. 



Mr. G. A. James Rothney sent for exhibition a number of specimens 

 of Camponotus compressus, C. micans, (Ecophila smaragdina, Sima rufo- 

 nigra, Solenopsis geminata var. armata, and other species of Ants, from 

 Calcutta, together with certain species of Aphidm kept by them for 

 domestic purposes ; also certain of their enemies and parasites. He also 

 communicated a short paper on the subject, entitled " Notes on certain 

 species of Calcutta Ants and their habits of life. 



April 13, 1892. — Henry John Elwes, Esq., F.L.S., Vice-President, 

 in the chair. 



Mr. Francis Jaffrey, M.R.C.S., of 8, Queen's Ride, Barnes, S.W., was 

 elected a Fellow of the Society. 



Mr. R. McLachlan exhibited specimens of Anomalopteryx chauviniana, 

 Stein, a Caddis-fly remarkable for the abbreviated wings of the male, the 

 female having fully developed wings ; he alluded to the Perlida as including 

 species in which the males were frequently semi-apterous. Dr. Sharp 

 enquired if Mr. McLachlan was aware of any order of insects, except the 

 Neuroptera, in which the organs of flight were less developed in the male 

 than in the female. Mr. C. G. Barrett and Mr. H. J. Elwes cited instances 

 amongst the Bombycida in which the wings of the male were inferior in 

 size and development to those of the female. 



Dr. Sharp exhibited specimens of both sexes of an apparently nondescript 

 phasmid insect allied to Orobia, obtained by Mr. J. J. Lister in the Seychelles 

 islands, together with Phylllum gelonus. He also exhibited specimens of 



