1902.] 



of Parnassius Apollo and P. Delias from various European localities, with many 

 intermediate forms. Mr. Percy F. Smith gave a lecture on " Spiders," dlustrated 

 with a large number of lantern slides.-H. J. Turner, Eon. Secretary. 



Entomological Society of Londoh : November 6th, I901.-The Rev. Canon 

 W. W. Fowler, M.A., F.L.S., President, in the Chair. 



Mr Arthur W. Bacot, 154, Lower Clapton Road, London, N.F. ; Mr. Edward 

 Martin Dadd, 3, Colina Villas, Green Lanes, Wood Green, N. ; Mr. George Fred- 

 erick Leigh. Musgrave Road, Durban, Natal ; Mr. Rupert S. Lower, Oswaldton, 

 Bartley Crescent, Wayville, South Australia ; Mr. John Crampton Wilkinson Ker- 

 shaw, Macao, China; Mr. Henry Woolner Peal, Indian Museum, Calcutta ; Mr. 

 Ethelbert Forbes Skertchly, Hong Kong ; and Mr. Arthur Smith, 5, Cavendish 

 Street, Grimsby ; were elected Fellows of the Society. 



The Rev. F. D. Morice exhibited two imperfectly developed females of Osmia 

 leucomelana found dead in a rubus stem at Woking, with their cases. Mr. C. P. 

 Pickett, varieties and aberrations of Colias Eyale taken at Folkestone during August, 

 1900- 1. Mr. F. B. Jennings, a specimen of Trachyphlaus myrmecophilus, SeidL, 

 taken at Hastings in September last, retaining intact the deciduous " false mandibles, 

 with the aid of which the imago of the species of this and certain other genera ot 

 weevils is said to work its way to the surface after emerging from the pupa under- 

 ground. These mandibles are usually shed as soon as the imago begins its life 

 above ground, as there is no further use for them. Mr. W. J. Kaye exhibited a 

 collection of butterflies made by him in Trinidad, with several hitherto undesenbed 

 species. He said that the probable total Rhopalocerous fauna was about 250 species, 

 the island- about the size of Somersetshire-being thus remarkably rich in butter- 

 flies. The number of the species in the families exhibited were Nymphahdce 34, 

 SatyridcB 13, Papilionida- 6, Pieridce 31, Erycinidce 29, Lycanid* 27, Eesperud* 

 62-nearly all taken within three or four miles of Port of Spain. Dr. Chapman, 

 specimens of Parnassius Apollo taken last July in Castile and Aragon (Spain), as 

 well as a number of specimens of both P. Apollo and P. Delius, chiefly Swiss and 

 French, taken by himself, Mr. Tutt, Mr. A. H. Jones (at Digne), and Mr. Rowland- 

 Brown (at Susa, N. Italy), both for comparison with the Spanish specimens and to 

 illustrate the extent to which the races of these species approached each other in 

 Western Europe ; the Spanish specimens differed from most of the others m their 

 great size, the males reaching 3| in expansion, the females 3* inches. Both males 

 and females seemed to be exceedingly close to the Asiatic form of Apollo, called hese- 

 bolus, in general faeies at any rate. The males placed between ordinary Swiss 

 Apollo and Delius, obviously inclined much more to the latter than the former in 

 general tone of colour and intensity of markings. The females were very large, and 

 varied to forms with much increased red ocelli. The best character whereby to 

 distinguish Apollo from Delius is certainly the black ringed antenna, which are also 

 usually proportionately shorter. The denser creamier colouring is also very charac- 

 teristic, yet this would make the Aragon specimens Delius. The pouch of the 

 female appears to be identical in both species, while the female appendages have no 

 structural difference observable, beyond one in size, those of Apollo being larger and 



