438 Entomological Societi/. 



Philippine Islands, which had become discoloured by grease, but 

 which he had restored to brilliancy by immersing them in pure 

 naphtha and then covering them over with powdered chalk for twenty- 

 four hours. This plan was equally applicable to Lei)idopterous insects 

 similarly circumstanced. 



The following memoirs were read : — 



Descriptions of some new Curculionidee from the Philippine Islands. 

 By G. R. Waterhouse, Esq. 



Continuation of a memoir on the Geotrupidce and Trogidce. By 

 Mr. West wood. 



May 1st. — George Newport, Esq., President, in the Chair. 



Mr. ^Marshall mentioned that in the United Ser\'ice Museum he 

 had observed an ant's nest, stated to be from abroad, precisely similar 

 to one recently forwarded to the Society from Surrey as the con- 

 struction of the wood-ant. 



He likewise mentioned that the rare moth, Ephyra pictaria, had 

 been taken in some plenty at Colchester in April 1842. 



Mr. Evans exhibited some curious Crustacea recently received from 

 China, and Mr. Westwood various new and interesting Indian insects 

 of different orders, recently added to the collection of the Rev. F. 

 W. Hope, including a fine Gryllus, like G. Z)o«oi'fl«/, anew subgenus 

 allied to Derbe, some curious Chalcididfe, two species of Celyphus, 

 &c., also a box of interesting Coleoptera and Hymenoptera which he 

 had received from the BerUn museum. 



Mr. S. Stevens exhibited a living specimen of an Indian Harpa- 

 lideous insect resembling Platynus angusticoUis, found in an impor- 

 tation of plants from Bombay. He also stated that a specimen of 

 Cermatia livida had been found alive on board a ship recently arrived 

 from Madeira. 



Mr. Ingpen exhibited a fine specimen of the North American 

 Saturnia Cecropia, reared from the chrysalis state by the Rev. Albert 

 Badger. 



The completion of Mr. Westwood's memoir on the Geotrupida 

 and Trogidce was read. 



After noticing the views published by Macleay and Latreille as to 

 the relations and classification of the GeotritpidtE and Trogidee, the 

 author j^roceeds to describe those genera which possess lO-jointed 

 antennae and exserted mandibles and labrum, and which respectively 

 belong to the two families above mentioned as thus characterized. 



Geotrupid^. Trogid.e. 



Antennarum clava 

 Maxillarum lobi 

 Labii lobi 



articulo basali infundibu- 



hformi, 

 membranacei, 



plerumque porrecti. 



articulis liberis. 



potius cornei, supe- 



ro ciliato-dentato. 



plerumque retracti. 



