Genus Campsosternus of Latreille. 287 



think it necessary to detach it from Monsieur Latreille's maga- 

 zine genus Lmllus, and regard it as belonging to a family of the 

 Elalerklce, which is peculiar to the East Indies. After a short 

 period I hope to add various remarks relating to these insects, as 

 some valuable notes, written in India, on their general natural 

 history, are now on their way to me in England. At the same 

 time, also, I propose examining our rich metropolitan cabinets, 

 in order to make the monograph as perfect as possible ; a supple- 

 ment therefore will be forwarded to the Society as soon as pos- 

 sible. 



If any gentleman present is acquainted with any vmdescribed 

 species belonging to the above genus, the loan of them is requested 

 for examination. 



CAMPSOSTERNUS,* Latreille. 



For the generic characters, see Latreille's Memoir in the French 

 Entomological " Annales." 



The following short Latin characters may be added to those of 

 Latreille : — 



" Scutellum reverso-cordatum, antice emarginatum, postice 

 latius truncatum. Thorax trapezoidalis elevatus, angulis 

 posticis obliquis, longitudine latitudini aequali. Prosternum 

 antice declive fovea transversa impressum." 



Sp. 1. Type of the genus Elater fulgens of Fabricius. 



E. cyaneo-nitidus, subtus cupreus, elytris acuminatis. Vide 



Fab. Ent. Syst. 2, 220, 22. 

 Long, lin, 20, lat. lin. 5|. 

 Habitat in China. 



Elater fulgens, Oliv. Ent. pi. 4, fig. 43. 



" E. violet, tres-brillant en dessus, cuivreux en dessous ; cotes 

 du corselet verts," 



E. supra violaceus nitens, infra cupreus, thoracis latcribus viri- 

 dibus. Elater auratus. Drury, 111. of Ins. torn. 2, pi. 35, fig. 3. 



Antennas nigrae, filiformcs, subserratse, thoracis longitudine. 

 Thorax lajvis, violaceus nitens, lateribus viridibus. Elytra 

 Isevia violacea, apice acuta. Corpus subtus pedesque cuprei 

 nitidi. 



* From na.fA'jri) and a-refwv. 



X 2 



