202 CERICHKESTUS. 



obsolete ferrugineous tubercles, bounded (towards the base) by a trans- 

 verse fovea ; the surface of the head above this fovea is granulated 

 and black ; at the base is a distinct circular fulvous marking. Thorax 

 transverse ; the anterior angles obliquely truncate, but distinct ; the 

 sides marginate, and in outline subsinuate ; a very slight medial 

 longitudinal depression extends nearly to the base, while on either 

 side of it an equally indistinct but broader depression is produced 

 obliquely from the base towards the anterior angles : the surface is 

 very thickly and finely punctured throughout, tomentose, black, with 

 a broad medial longitudinal flavous marking, gradually extending in 

 breadth from the base to the anterior margin ; the margination of 

 the thorax is ferrugineous. Scutellum very small, indistinct, darkly 

 fuscous. Elytra broad, parallel, distinctly punctate-striate, tomentose, 

 of a dull black colour ; at the humeral angle is a distinct and broad 

 fulvous marking, extending halfway down the margin of the elytra, 

 broader at the base (extending laterally to the point of contact of the 

 posterior angle of the thorax) and thence gradually diminishing. 

 Antennas short (not equal in length to the elytra), robust, incrassated ; 

 the first joint not so long as in allied species, dilated at the apex ; 

 the second short, ovate ; the third, fourth, fifth and sixth gradually 

 but broadly dilated, and distinctly pubescent, black ; ninth to eleventh 

 fulvo-flavous. Legs black, with the base of the femora and also the 

 posterior tibiae fulvous ; the posterior tarsi flavous ; the inflation 

 above the posterior claw bright fulvo-rufous. 



Amazon district. 



7. Cerichrestus Chevrolatii. 



C. oblongo-ovatus, parallelus, subcylindricus, subtlliter pubescens, 

 punctato-striatus, fusco-niger ; capite brevi, granulato, super 

 oculos fidvo notato ; tJiorace quadrato, ad basin transverse foveo- 

 lato, nigro-fusco, ad later a fid vo ; elytris subelongatis, punctato- 

 striatis ; antennis subjiliformibus, fuscis ; pedibas fuscis, femori- 

 bitsflavo suffasis. 



Long. corp. 2^ lin., lat. |- lin. 



Oblong-ovate, parallel, subcylindrical, under a high power obso- 

 letely pubescent, deeply punctate-striate, fuscous-black. Head short, 

 transverse, not produced ; below the base of the antenna; is a trans- 

 verse glabrous depression ; eyes tolerably large, situated at the base 

 of the head, extending laterally as far as the anterior angles of the 

 thorax ; the surface at the base is coarsely granidated ; in colour the 

 labrum is fuscous, the part between the labrum and the insertion of 

 the antenna) fulvous ; at the base of the head dark fuscous, with two 



