146 CCELOCEPHA.LTJS. 



transverse (almost quadrate) ; the anterior angles depressed ; the 

 sides marginate ; the base constricted, but not so apparently as in 

 C. amcenus, and transversely depressed ; the surface is impunctate, 

 flavo-pubescent and rufo-flavous. Scutellum triangular, pubescent, 

 fuscous. Elytra broader than the thorax, parallel, punctate-striate, 

 the punctures being coarse and shallow; black, obsoletely flavo- 

 pubescent. Antennae approximate, filiform, fusco-ferrugineous. Legs 

 flavous, the posterior femora being suffused with fuscous. 



Taken by Mr. Bates in the district of the River Amazon. In the 

 collection of the British Museum, and also in that of Mr. Baly. 



2. Ccelocephalus amoenus. 



C. oblongo-ovatus, parallelus, subtiliter pubescens, nigro-fuscus ; 

 capite brevi, impunctato,flavo ; thorace quadrate, ad basin con- 

 stricto et transverse depresso, flavo ; elytris parallelis, striato- 

 punctatis, subpubescentibus, nigro-fuscis, sutura et apice flavo 

 marginatis ; antennis filiformibus,ferrugineis, art, 9-11 flams ; 

 pedibus flavis. 



Long. corp. 2 lin., lat. f lin. 



Oblong-ovate, parallel, depressed, obsoletely pubescent, punctate, of 

 a dark fuscous colour. Head short, not produced in front, vertical, or 

 somewhat reflected backwards below the base of the antennae; above 

 the labrum is a transverse triangular depression ; eyes small, globose, 

 lateral, situated at the base of the head ; the surface is impunctate, 

 of a pale flavous colour. Thorax quadrate, more elongate than in 

 (7. pulchellus, and the base more distinctly constricted ; the anterior 

 angles are depressed ; the sides rectilinear ; the surface transversely 

 depressed at the anterior and basal margins, subglobose, impunctate, 

 flavous, obsoletely flavo-pubescent. Scutellum triangular, flavo- 

 pubescent, flavous. Elytra broader than the thorax, parallel, de- 

 pressed, with rows of punctures arranged in the form of striae ; these 

 punctures are broad and shallow ; the surface is subpubescent, of a 

 dull fuscous colour, the line of the suture, and also the apex, being 

 bordered with a narrow, well-defined suffused line of flavous. An- 

 tennae approximate at their insertion, filiform, ferrugineous, the three 

 apical joints being flavous. Legs flavous throughout, the apical in- 

 flation of the postical claw being rufo-flavous. 



Closely allied to C.pulchellus, from which species it may be readily 

 separated by the absence of any marking between the eyes, by the 

 quadrate and posteriorly constricted form of the thorax, and by the 

 sutural flavous band on the elytra. 



Ega, district of the River Amazon. 



