ENTOMOLOGICAL SOCIETY OF LONDON. Ixxxix 



lian Pselaphidce, a Brazilian species of Articerus, and several 

 Australian species of Cryptodus and allied genera. 



Mr. Westwood also exhibited specimens, in all its stages, of 

 Baridius trinotus {vestitus, Schonherr), an American species of 

 weevil, about the size of Calandra granaria, which had been com- 

 municated to him by Mr. Josiah Forster, having been observed 

 by Miss Morris, of Germantown, to attack the potatoes in Ame- 

 rica to such an extent as to have led to the belief of its being the 

 real cause of the potato disease. The eggs are deposited in the 

 leaf-buds, and the larvae, as soon as hatched, burrow into the 

 stems, within which they feed, descending to the root and causing 

 the decay of the plant. 



Messrs. Westwood, Stephens and Waterhouse said, that of 

 course this insect was not the cause of the potato disease, but the 

 fact was certainly interesting; the identical species trinotus not 

 being British, the species of the genus Baridius being rare in this 

 country, and none of them frequenting the potato. 



Mr. Shepherd exhibited a magnificent series of Peronea Has- 

 tiana, L., bred from larvae and pupae found in sallow leaves, in 

 the neighbourhood of London. 



Mr. Saunders read a paper on a species of Histkeses and Ipete 

 carissima, Newm. 



The President announced, that a Book had been sent to him, 

 and was on the table, in which any gentleman who wished to 

 become a promoter of the Great Exhibition of the Works of In- 

 dustry of all Nations, in 1851, was requested to sign his name. 



