Sex ) 
this spring by Mr. Thwaites in Ceylon, running about the surface of some 
garden mould. “It belongs to the great division of the mandibulate insects, 
undergoing an active state preceding the assumption of the imago form and 
possessing galeated maxille and articulated filamentous anal appendages.” 
Drawings of the insect were exhibited. 
Mr. P. Cameron communicated some “ Notes on Hymenoptera, with 
descriptions of new species.” Several new species of Oxyura, Braconida, 
Chalcidide, Fossores, and Tenthredinide were described, from various 
localities ; a synopsis of the British species of Tenthredopsis was included. 
Remarks on the structure of the ovipositor in the Yenthredinide were 
appended to the paper. 
November 2, 1881. 
H. T. Stainton, Esq., F.R.S., &c., President, in the chair. 
Donations to the Library were announced, and thanks voted to the 
respective donors. 
Exhibitions, dc. 
Mr. C. O. Waterhouse exhibited a variety of Urapteryx sambucaria, L., 
in which the transverse streaks in the fore wings were much broader than 
usual and closely approximate, captured by Mr. F. H. Waterhouse at 
Wandsworth. Also a specimen of a recently characterized Hemipteron, 
Aépophilus Bonnairti, Sign.,- which Mr. Waterhouse discovered in the 
British Museum Collection, labelled “ Polperro, Cornwall,” and which had 
undoubtedly been set by the late Mr. F. Smith. He had no doubt the 
specimen was of British origin. Mr. Waterhouse remarked on the some- 
what abnormal characters of this species, pointing out that it received its 
generic name from being a cohabitor with the coleopterous Aépus, living on 
the sea-shore, under stones below tide-mark. 
Mr. IX. Saunders referred to Dr. Signoret’s original descriptions of the 
species (Bull. Soc. Ent. France, 1879, p. Ixxiii, and Tijd. v. Ent. xxiii. 
pp. 1—8, pl. 1.; 1880) from specimens found, under stones deeply imbedded 
in the mud, in the Ile de Reé. 
Mr. W. F. Kirby exhibited a new species of Anther@a (A. macroph- 
thalma, Kirby), received by Mr. G. A. Higlett, who was present as a 
visitor, from the Gold Coast (West Africa). Although a true Antherea it 
was remarkable for its resemblance in coloration to the Mascarene Caligula 
Suraka, Boisd. 
Mr. Kirby also exhibited, on behalf of Mr. P. Cameron, numerous 
microscopic preparations of the saws, mouth parts, and other details of 
