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August 3, 1881. 
R. Mevpora; Esq., F.C.S., &e., Vice-President, in the chair. 
Donations to the Library were announced, and thanks voted to the 
respective donors. 
Exhibitions, dc. 
Miss E. A. Ormerod exhibited numerous specimens of Coleoptera and 
Hemiptera, in spirits, which had been collected by Mr. Bairstow in the 
neighbourhood of Uitenhage and Port Elizabeth, South Africa. 
Mr. A. H. Swinton communicated some observations on Jodis vernaria, of 
which the following is an abstract :—This species is common on the Surrey 
Hills, and when in repose its wings hang limp and roof-shaped, with their 
exterior extremity rising above the head like a.crest. This arrangement 
allows great vertical play to the abdomen, and much facilitates oviposition. 
On opening a box containing a living female, Mr. Swinton was surprised to 
perceive a most sickly smell of honey, resembling the scent of clematis 
blossoms (on which plant the larva feeds), but more pungent. He also 
observed small minute columns of emerald-green, attached here and there, 
which proved to be eggs, shaped like draughtmen, and piled up one on the 
top of another, in a slight curve, to the number of twelve or fifteen. The 
odour appeared to arise from the substance by which the eggs were 
agglutinated together. The moth flies at early dusk, and rests amongst 
the clematis during the day. Specimens of the moth and eggs were 
exhibited in illustration. 
Mr. E. A. Fitch exhibited an ear of wheat on which were between fifty 
and sixty skins of Siphonophora granaria, all of which, without exception, 
had produced an Allotria or Aphidius. He also remarked that from his 
observations in one particular field he should think quite 90 per cent. of the 
Aphides, which were numerous, were infested with these parasites. 
Papers read. 
Prof. Westwood communicated the ‘“ Description of a new genus of 
Hymenopterous insects” (Dyscolesthes canus). The species, which is from 
Chili, is of somewhat doubtful affinities, but, was thought to be an aberrant 
form of the Formicide or Scoliida. 
Mr. A. G. Butler communicated a continuation of his “ Descriptions of 
new genera and species of Heterocerous Lepidoptera from Japan,” the 
descriptions of fifty Geometre being included in the present paper. 
Mr. R. Trimen communicated a memoir “On some new species of 
Rhopalocera from Southern Africa,” six new species being described, from 
the extra-tropical region of South Africa. 
