268 [November, 1911. 



Dr. F. A. Dixey read a letter received by him from Mr. E. A. Agar, of 

 Dominica, "West Indies, on the subject of the Separation of the Sexes of Hypo- 

 limnas misipjjus, the writer remarking- that in tliat ishxnd, although haunting 

 similar localities, the ? remains on the coast, while the S is to be met with 

 some distance inland. The former is scarcely ever to be seen in company Avith 

 the (J of its own species, though it flies with Danaida plexippus, of which it is a 

 mimic. Dr. Dixey remarked that it was a common experience that one sex of a 

 butterfly at any given time was more in evidence than the other. Mr. Millar, 

 of Durban, had drawn his attention to the fact that, speaking generally, the 

 males were more apt to be on the wing during the morning, and the females in 

 the later hours of the day. Dr. Long-staff observed that in North Africa certain 

 species of Teracolus gave abundance of (? (? in the morning, whilst in the after- 

 noon the 9 9 predominated greatly. Prof. Poulton exhibited the cocoon of 

 the Hypsid moth, Deilemera antinorii, Oberth., which Mr. W. A. Lamborn had 

 intended to exhibit on June 7th last. He also exhibited examples from three 

 of the all-female broods obtained by Mr. W. A Lamborn, chosen becavise they 

 prove that the unisexual batches are not necessarily associated with either of 

 the forms of encedon in the locality, one brood being all lycia, another all 

 encedon, while the third was as nearly as possible half and half (23 to 24). Prof. 

 Poulton fiu-ther exhibited a series of eight Acrsea alciope and five A. aurivillii, 

 bred in the present year by Dr. G. D. H. Cai-penter from thii'teen small larvaj 

 found on a single leaf of the food-plant on Damba Island, in the Victoria 

 Nyanza to the east of Entebbe. The result entirely confirmed the conclusions 

 of Mr. Eltringham and Dr. Jordan that A. aurivillii is the $ of A. alciope. 

 The Rev. G. Wheeler, some living ^ $ of a small ant, identified by Mr. Donis- 

 thorpe as Monomorium pharaonis, imported from Madeira, and now settled in 

 England, together with several butterflies whose bodies and heads had been 

 devoured by them while in the setting box. He observed that these insects 

 had all been killed in the cyanide bottle, whilst others in the same setting box 

 which had been injected with oxalic acid were left imtoviched. The President 

 said that about the l^eginning of July this year he had noticed, while collecting 

 near El Guerrah, the junction for Constantino, Biskra and Alger, both sexes of 

 the yellow and black Leucospis gigas, and of another red and black Leucospis, 

 flying in great nrunbers round a cairn of stones on the top of a hill, and 

 suggested that the common instinct to seek high places might provide a 

 meeting-ground for the sexes. 



Commander Walker read the following papers — (1) Report on a collection 

 of Bomhyliinie (Diptera) from Central Africa, with descriptions of new species, 

 by Prof. Mario Bezzi, Tiu-in, Italy (communicated by G. A. K. Marshall, F.E.S.). 



(2) An enumeration of the Bhynchota collected during the Expedition of the 

 British Ornithologists' Union to Central Dutch New Guinea, by W. L. Distant. 



(3) (Estridx Cavicolse, by Ivan E. Middleton, F.E.S., of Serampore, India. — 

 G. Wheeler, Hon. Secretary. 



