SOCIETIES. 99 



Frenilin, M.E.C.P., F.E.S., W. J. Lucas, B.A., F.E.S., H. Moore, 

 A. M. Montgomery, aud R. South, F.E.S., Council. The President 

 then read his Address. 



February 9th. — Mr. A. Harrison, F.L.S., President, in the chair. — 

 Mr. Russell exhibited a specimen of Plusin moneta taken at Southend, 

 near Catford, in July, 1898. It was noted how rapidly the species was 

 spreading. Mr. Adkin, a series of Hadena pisi from Aberdeenshire, 

 with S. English forms for comparison. They were of a blackish brown 

 or dull purple, showing a strong contrast to the red English form. Mr. 

 Lucas, a series of Rhyparobia (Panchlora) maderia taken at Kew 

 Gardens in a packet received from the Belgian Congo, and contributed 

 notes on its distribution. Mr. Main, specimens of the brilliant Cole- 

 opteron, Aspidomorpha sanctce-crucis, from Bombay, which had been 

 preserved in a dilute solution of formalin. A discussion ensued as to 

 the amount of formalin in the solution, and also as to its action. It 

 was thought that no more was necessary than just sufficient to sterilize 

 the water, say 1 per cent. Mr. Harrison, a bred series of Pseudoterpna 

 pruinata (cytisaria) from New Forest larvae. Mr. Fremlin read a note 

 received from Mr. Chadwick, in Devonshire, giving an account of an 

 observation of Amphipyra pyramided swimming across a stream at least 

 thirty yards wide. In the discussion which ensued, Mr. Tutt and 

 others gave various instances of the swimming capabilities of several 

 species of Lepidoptera. Dr. Chapman read a paper entitled " Some 

 Points in the Evolution of the Lepidopterous Antennae," illustrating 

 his remarks by blackboard diagrams and numerous figures of antennas 

 sculpture. A discussion took place, and it was considered that the 

 paper was one of the most important of the series of evolutionary 

 studies which Dr. Chapman had for some time been contributing to 

 various societies and magazines. 



February 23rrf. — Mr. A. Harrison, F.L.S., President, in the chair. 

 Rev. F. H. Wood, Bromley Park, Kent, was elected a member. Mr. 

 Sauze exhibited a specimen of the Heteropteron, Acanthosoma heemorr- 

 hoidaiis, taken alive a few hours before at Brixton. Mr. Harrison 

 exhibited a long series of Pamassius apollo, both bred and captured, 

 arranged to show the variation in the large central ocellus on the hind 

 wings. He also exhibited series of Papilio podalirius and P. machaon, 

 both species from Meiringen. Mr. West, of Greenwich, a long series 

 of the four species of the Homopterous genus Plulamus, including some 

 hundred different varieties of the common garden spit-fly, P. spumarius. 

 Mr. Moore, a preserved larva of Papilio cresphontes of North America. 

 Mr. Step gave a series of notes and observations he had made during 

 the last few years on our larger British Crustaceans, and he illustrated 

 his remarks by admirable lantern slides from his own photographs. 



March 9th. — Mr. R. Adkin, F.E.S., Vice-President, in the chair. 

 Mr. Adkin exhibited males, imagines, and cases of Psyche villnsella, 

 P. opacella, and P. graminella. Mr. Tutt communicated a paper on 

 " The Nature of Metamorphosis." — Hy. J. Turner, Hon. Report Sec. 



Cambridge Entomological and Natural History Society. — February 

 3rd, 1899. — Dr. Sharp exhibited a number of stag-beetles (Lucanidse), 



