17 February, 1873. 
Prof. Westwood, M.A., F.L.S., President, in the chair. 
Donations to the Library. 
The following donations were announced, and thanks voted to the 
donors : — ' Dlustrations of Diurnal Lepidoptera,' part v. Lyesenidae ; 
presented by the Author, AV. C. Hewitson, Esq. ' Bidrag till Rannedom 
af Finlands Tryphonider "; and, ' Materialier till en Ichueumonologia 
Fennica'; by the Author, F. W. Woldstedt. 
Election of Members. 
Alfred E. Hudd, Esq., of Piedland Park, Bristol (formerly a Subscriber), 
was balloted for and elected an Ordinary Member ; and Dr. Hermann Bur- 
meister, of Buenos Ayres, was elected a Foreign Member of the Society, 
Exhibitions, dc. 
Mr. F. Bond exhibited a series of bred specimens of Acronycta tridens 
and A. Psi, with preserved larvae of the two species. The specimens of 
A. tridens had all been reared on the common pear. He remarked that 
the dark specimens so often occurring in A. Psi were never repeated in 
A. tridens ; and that the latter always exhibited a pinkish tint in fine fresh- 
bred specimens, which, however, was very evanescent. 
Mr. Miiller exhibited some cases of a species of Psyche, formed of 
twigs arranged spirally, and also the egg-case of a species of Mantis ; these 
had been sent from Calcutta by Mr. G. A. James Rothney. 
Professor Westwood exhibited two Dipterous larvae preserved in spirits 
which were probably those of Psila rosse. These had been discharged by 
a female in a clot of phlegm. He suggested when they were submitted to 
him that the person had probably been eating raw carrots, which, upon 
enquiry, turned out to have been the case. After they had been immersed 
in spirits for three or four days he took them out for examination, when he 
was surprised to find they were still alive. He also exhibited drawings of 
a dipterous larva (probably Merodon clavipes, Fab.) infesting some bulbs 
sent to him from the Continent. Also drawings of woody excrescences on 
stems of vine, which had probably been formed by a beetle of the genus 
Otiorhynchus. Mr. Miiller remarked that Mr. Riley had recorded a similar 
habit in an American beetle (Baridius Sesostris, Lee). 
Professor Westwood further exhibited drawings of the root-fibres of a 
vine, dilated and constricted in a joint-like maimer, which he thought was 
owing to former attacks of Phylloxera. 
Mr. Briggs exhibited parallel series of the large and small forms of 
Auaitis plagiata taken by him in Tilgate Forest, in the month of June, 
