xli 



Greening', at Warrington, Laving tlie wings on one side abnormally coloured ; seven 

 specimens of Polia nigrocincta, bred in 1868 by Mr. Greening, from larvae found 

 in the Isle <»f Man, and the earlhern case in which one of the pupae had been 

 enclosed. 



Prof, Westwood announced that the Leucania exhibited by Mr. Briggs at the 

 previous Meeting (ante, p. xxxix.) had proved to be L. albipuncta, W. V., a species 

 new to the British list. 



Mr. M'Lachlan read extracts from the ' Canadian Entomologist,' one recording 

 the occurrence of Papilio Machaon in the Hudson's Bay Territory, the other relating 

 to the naturalization in North America of Pieris Rapae, which, recently introduced 

 into Canada, had already spread southwards into Maine and Vermont. 



Mr. Bond mentioned the occurrence of a swarm of beetles in Cambridgeshire. 

 A correspondent, writing from Whitllesford on the 30lh of September, 1868, said: — 

 *' Within the last few days, the road, the foot-path, the grass and the hedges from ray 

 house for about three-quarters of a mile, have been covered with them: there must be 

 bushels of them, and although we have had showers, their numbers do not diminish." 

 The species in question was Gastrophysa polygoni. 



Mr. M'Lachlan exhibited larva-cases, and specimens of both sexes of the imago 

 {winged males and wingless females) of Entecyla pusilla, bred by Mr. Fletcher, of Wor- 

 cester, an interesting addition to the list of British Trichoptera. The larvae were 

 terrestrial in their habits, feeding in mosses growing on the bark of trees, and had not 

 any external respiratory organs. 



Prof. Westwood exhibited drawings in detail of some remarkable forms of Hy- 

 menoptera. Amongst them were three new species of Trigonalys, two from the 

 Amazons, one from Ceylon ; a singular insect from the Amazons, the type of a new 

 genus Nomadina ; and a still more abnormal form from Hayti, to which the name 

 Sibyllina aenigmatica was given, which Mr. F. Smith had regarded as an ant, 

 Mr. Haliday as one of the Sphegidae, whilst Prof. Westwood thought it more nearly 

 allied to the Vespidae; its long twelve-jointed filiform antennae (in the female), 

 notched or kidney-shaped eyes, the tri-lobed lower lip, and the flat wings (not folded 

 longitudinally), seemed to connect it with the last-mentioned family. (See ' Trans- 

 actions' for 1868, p. 327.) 



Mr. F. Smith thought the insect had more characters in accordance with those of 

 the ants than with those of any other family, and it certainly never occurred to him 

 that it was a wasp. The notched eye was found in Mutillidse and Trypoxylon ; and 

 there were none of the Vespidae in which the prothorax was not continued down to the 

 insertion of the wings, in which character Sibyllina agreed with the Sphegidae. 



December 7, 1868. 



H. W. Bates, Esq., President, in the chair. 



The Secretary announced the death of Prof. Boheman, an Honorary Member of 

 the Society: he died at Stockholm on the 2nd of November, at the age of seventy-two 

 years. 



