879 4 Entomological Society. 



1 Zwolf Amerikanische Nachtfalter ; Chilonidarum et Crambidarum Genera et Species ; T 

 by the Author, Professor P. C. Zeller. * Stettiner Entomologische Zeitung,' 1863, 

 Nos. 7—9 ; by the Entomological Society of Stettin. The following addition to the 

 Library, by purchase, was also announced : — 'Auguste Vinson, Araneides des lies de 

 la Reunion, Maurice et Madagascar.' 



Exhibitions, fyc. 



The Secretary, referring to the exhibition, at the July meeting, of some white silky 

 matter probably caused by lepidopterous larvae, said that he had received another com- 

 munication from Mr. Thomson, enclosing specimens of the moth which flew out of the 

 bin when the chicory was disturbed. These proved to be Ephestia elutella ; but it was 

 thought improbable by the lepidopterists present that the silky web was the product of 

 that species. 



The Rev. Hamlet Clark exhibited the water-beetles captured by Mr. F. G. Water- 

 house during his recent journey of exploration with Stuart across the Australian con- 

 tinent. There were two species of Cybister, both new, but allied to northern forms ; 

 three of Hydaticus, of which one was a dark variety of a Moreton Bay species, one 

 was common in the North, and the third was new ; two of Colymbetes, both new ; one 

 of Agabus, new ; two of Copelatus, of which one occurred in Lizard's Island and the 

 other was new; one of Eunectes, which occurred everywhere; two of Hydroporus, of 

 which one was a common South- Australian form and the other a new species; one of 

 Hyphidrus, new ; two of Gyrinus, of which one was common at Adelaide and the other 

 new; and one of Dineutes, new. There were thus seventeen species, the produce of 

 the Expedition, represented by twenty-six specimens ; of these two were common 

 species in South Australia, one occurred in profusion at Adelaide, and one was common 

 everywhere, leaving thirteen new species, of which seven were without any special affi- 

 nities, whilst six were nearly related to northern species. 



Mr. Stainton exhibited some alder leaves said to contain larvae of Tinagma resplend- 

 ellum ; the larvae, however, were not visible, being concealed within the midrib or leaf- 

 stalk. When young the larvae gave a slight curvature to the leaf, and were almost 

 always found on the antepenultimate leaf of an alder shoot; they then mined down 

 the midrib and leaf-stalk, eating down one side and returning up the other side, and 

 finally, when nearly full-fed, made a blotch on the leaf, by which they might readily 

 be discovered. 



Professor Westwood had endeavoured to discover generic characters in the eggs of 

 birds, but had been unable to do so. He should be glad to know if Mr. Stainton's 

 experience of leaf-mining larvae had led him to the discovery of characters in the mines 

 which were of generic value; if so, regard ought to be had to them in any future 

 arrangement of the Micro-Lepidoptera. 



Mr. Stainton replied that not only were the characters of the mine of high import- 

 ance for the discrimination of species, but he considered that the mines exhibited 

 generic characters also, If a new mine were shown to him he could generally name 

 the genus to which the insect was to be referred. 



Mr. Haward exhibited the pupa and a bred imago of Ocypus ater. The larva was 

 found in, and fed on, a piece of elm wood ; and had been kept in a glass jar between 

 two and three months, at the end of which time the imago emerged. 



Professor Westwood called attention to the ravages committed on the willow trees 



