Entomological Society. 453 



Mr. Westwoocl exhibited a few of the extensive collection of dis- 

 sections made by Latreille, consistingof several hundred illustrations 

 chiefly of the Coleoptera and Hymenoptera, accompanied by notes and 

 sketches, and which had been presented to him by Mr. Alelly. He 

 commented upon the value of this collection, as affording the means 

 of authenticating Latreille's various descriptions and notices ; adding 

 as a proof of the minute scrupulosity of that distinguished entomo- 

 logist, that occasionally several dissections occurred of the same insect 

 (four of Oryssus and three of Psamtncechus were exhibited): it likewise 

 afforded the means of determining the precise types of certain genera, 

 of which Aiiteon and Ceraphron, with their dissections, were exhibited 

 as illustrations. 



Mr. Westwood also exhibited Latreille's specimens and dissections 

 of the anomalous genus Prosopistoma, from Madagascar, regarded 

 by that author as Crustaceous near yi^w^, but which M. M. Edwards 

 regards as the larva of some other crustaceous animal. 



Mr. A. White exhibited a drawing oi PJchid/wcents cibarius, a new 

 genus of Anomourous crabs, brought from the Colombia river by Sir 

 George Staunton, used by the natives for food, and nearly allied to 

 Lithodes, but distinguished by the spinose basal joiut of the antenna. 

 He also exhibited drawings of a species of Ega, allied to E. affinis of 

 M. Edwards, taken on the cod by the Newfoundland fishermen, by 

 whom it is called the fish-doctor. Its spawn is called by them egg- 

 salve, and is used both as a salve and as a bait for the cod. 



He also exhibited specimens of some xery minute bees, which had 

 lived in a colony for two years near Southampton. Their nest had 

 been found in a piece of log- wood from Campeachy, from which they 

 had been removed into a cocoa nut filled with pieces of log- wood, 

 in which they had thriven and made honey. The specimens were 

 too much damaged to admit either the genus or species to be deter- 

 mined. 



The following memoirs were read : — 



Monograph of the Elaterideous genus Compsosternus, Latr. By the 

 Rev. F. W. Hope-. 



Sp, 1. (Type of the genus) Elater fulgens, Fabr. Long. corp. lin. 

 20. [^Hab. China. 



Sp. 2. C. sumptuosus, H. C. aurato-viridis, nitidus, capite antice 

 subfoveolato, elytris aurato-viridibus , acuminatis, glabris, nitidis et 

 punctulatis. Long. corp. lin. 14J. \_Hab. Java} Manilla. Mus. 

 Dupont. 



Sp. 3. C. aureolus, H. Metallico-viridis roseoque colore tinctus, 

 antennis nigricutitibus, thorace vix subconvexo , postice lobato, elytris 

 viridibus striato-punctatis , striis hand fortiter impressis. Long, 

 corp. lin. 14^. [^Hab. Singapore. Tenasserim coast. 



Var. C. Calanus, Hope, MS8. olim. 



Sp. 4. C. Cantori, H. JEneus thorace marginato et tomentoso, an- 

 tennis palpisque nigricantibus, thoracis laleribus roseo-cuprcis, 

 elytris ceneis, substriatis, tenuissime punctulatis. Long. corj). lin. 

 22i. [Hab. Assam. Dr. Cantor. 



Sp. 5. C. Latreillii. Purpureo-viridis, thorace in medio purpureo, 



