scientific societies. 471 



Entomological Society of London. 



Novemher 2, 1887.— Dr. David Shakp, F.Z.S., President, in the chair. 



Mr. Stevens exhibited a specimen oi Acidalia immorata, L., purchased by 

 him some years ago at the sale of the collection of the late Mr. Desvigues. 

 Mr. Stevens remarked that specimens of the insect lately captured near 

 Lewes had been described last mouth by Mr. J. H. A. Jenner as a species 

 new to Britain. 



Mr. Adkin exhibited, and made remarks on, a series of male and female 

 specimens of Arctia mencUca from Co. Cork ; he also exhibited for comparison 

 two specimens of A. mendica from Antrim, and a series of bred specimens 

 from the London district. Some of the males from Cork were as white as 

 the typical English females, but the majority of them were intermediate 

 between the form last mentioned and the typical English form of the male. 



Mr. Enock exhibited a specimen of Calocoris bipunctatus containing an 

 internal parasitic larva. 



Dr. Sharp exhibited three species of Coleoptera new to the British 

 list, viz.:—(\) Octhebius aurkulatus, Rey, found by Messrs. Champion 

 and Walker some years ago in the Isle of Sheppey, but described only quite 

 recently by M. Rey from specimens found at Calais and Dieppe. (2) Limnius 

 rivularis, Rosenh., found by the late Dr. J. A.Power at Woking ; the species, 

 though not uncommon in Southern Europe, had not, he believed, been pre- 

 viously found farther north than Central France. (3) Tropiphorus obtiisus, 

 Bonsd., taken by himself on the banks of the Water of Cairn, Dumfriesshire ; 

 he had considered previously that this might be the male of T. mercurialis, 

 but M. Fauvel, who was studying the European species of the genus, 

 informed him that this was not the case. Dr. Sharp also exhibited a 

 GoUathus recently described by Dr. 0. Nickerl as a new species under 

 the name of GoUathus atlas, and remarked that the species existed in 

 several collections, and had been supposed to be possibly a hybrid between 

 G. regius and G. cacicus, as its characters appeared to be exactly inter- 

 mediate. He also exhibited a living example of the Mole Cricket, Gryllo- 

 talpa vulgaris, from Southampton; between the spines of its hind legs 

 were a number of living Acarids placed in a symmetrical manner so as to 

 appear as if they formed a portion of the structure of the limb. 



Mr. Eland Shaw exhibited two species of Orthoptera, which had been 

 unusually abundant this year, viz. Nemobius sylvestris, from the New Forest, 

 and Tettix subidatus, from Charmouth, Dorset. 



Mr. E. B. Poulton exhibited the cocoons of three species of Lepidoptera, 

 in which the colour of the silk had been controlled by the use of appropriate 

 colours in the larval environment at the time of spinning up. Mr. Poulton 

 said this colour susceptibility had been previously proved by him in 1886 

 in the case of Saturnia carpini, and the experiments on the subject had 



