SOCIETIES. 165 
SOCIETIES. 
Enromonoaican Society or Lonpon.— Wednesday, April 5th, 
1916.—Special Meeting.—Dr. C.J.Gahan, M.A., D.Se , Vice-President, 
in the chair.—The Chairman having read the notice summoning 
the meeting, the proposed alterations in the bye-laws were submitted 
to the Fellows present, which were adopted with shght verbal 
emendations. —Ordinary Meeting —Dr. C. J. Gahan, M.A., D.Sc., 
Vice-President, in the chair. —Mr. Charles Hanslope Bocock, The 
Elms, Ashley, Newmarket, was elected a Fellow of the Society.—The 
Secretary announced that the Council had, in accordance with the 
bye-laws, co-opted Mr. H. Willoughby Ellis as a member of Council, 
in the place of the late Mr. G. Meade- Waldo.— Mr. H. Main exhibited 
a new observation cage for the study of earth-boring insects, especially 
Geotrupes species.—Prof. Poulton exhibited further examples of this 
species from the same locality in Madagascar as the fifty-one shown 
by him last year.—Prof. Poulton said that in the spring of last year 
Mr. Dodd had sent him a number of interesting observations on 
various insects in N. Queensland, together with examples of the 
species on which they had been made. He now brought forward 
some of these observations and showed the insects concerned. He 
also read a letter from Dr. R. C. L. Perkins on the nest-huilding 
instincts of bees of the genera Osmia and Anthidium, and exhibited 
the specimens to the meeting. —Dr. C. J. Gahan read the following 
letter on Mimetic Grouping in Insects, which had been addressed to 
him by Mr. F. G. Stokes, and said it was very interesting as a quite 
independent account of a phenomenon which had been discussed more 
than once at meetings of the Society—Mr. G. Talbot exhibited two 
species of butterflies from Waziristan on behalf of Mr. J. J. Joicey, 
viz Synchloe lucilla, Butl., and Yphthima bolanica, Marshall.—Dr. 
H. Eltringham gave a short abstract of his paper on ‘“ Specific and 
Mimetic Relationships in the Genus Heliconius,’” illustrated by 
several coloured lantern slides; in connection with this exhibit Mr. 
W. J. Kaye showed four large cabinet drawers of Heliconius species, 
three of which contained what might ultimately be proved to be 
forms of the extraordinarily variable species melpomene.—Dr. F. A. 
Dixey showed upon the screen outline drawings of scent-scales and 
genitalia from various forms of Pieris napi, L., and remarked on them. 
Wednesday, May 3rd, 1916.—The Honble. N. Charles Rothschild, 
M.A., F.Z.S., F.L.S., President, in the chair.—Messrs. Leonard 
Charles Box, F.R.H.8., Dominion Experimental Station, Fredericton, 
New Brunswick, and Leonard Spencer Tatchell, Heathwood Road, 
Bournemouth, were elected Fellows of the Society.— Mr. Bacot gave 
in brief outline an account of some experimental work carried out in 
Freetown, West Africa, dealing with the hatching of eggs of the 
mosquito Stegomyia fasciata. —Dr. T. A. Ch: apman exhibited living 
specimens of the sawfly Trichiosoma tibialis, Steph., and eight eggs 
laid in the cuticle of hawthorn leaves, and read notes; alge a fae 
tological specimen of a beetle with additional tarsal joints, and read 
notes.—Mr. EK. EH. Green exhibited various species of Cassidide, pre- 
served in 2 per cent. formalin, displaying their\ natural metallic 
colours which are lost on desiccation.—Professor Poulton, a living 
