CERICHRESTUS. 199 



Oblong, ovate, parallel, subcylindrical, pubescent, black. Head 

 short, transverse, deflected, slightly produced in front ; eyes distant, 

 somewhat prominent ; the maxillary palpi of a rufous colour : the 

 lower surface of the head (below the insertion of the antenna;) is 

 flavo-rufous, between the eyes fusco-rufous, and at the base fus- 

 cous ; granulated, clothed towards the base with exceedingly minute 

 pubescence. Thorax quadrate, constricted at the base ; the anterior 

 angles are distinct, but not prominent ; the sides marginate ; at 

 the base is a broad transverse depression ; the surface is tomentose, 

 fuscous, except marginally, where it is broadly shaded oif into dark 

 rufous. Scutellum triangular, black. Elytra parallel, distinctly 

 punctate-striate, dull black. Antenna* short, robust, in the fourth, 

 fifth and sixth joints somewhat incrassated. Legs rufo-fuscous, 

 with the anterior tibiae and tarsi nigro-fuscous. 



C. Deyrollii may be separated from all others in the genus by the 

 form and the colouring of the thorax. It appears also (although the 

 example before me is imperfect) to be narrower, and more elongated 

 in general form. 



Cayenne. In the collection of M. Deyrolle. 



4. Cerichrestus Batesii. (Tab. VIII. fig. 4.) B.M. 



C. oblongus, ovatus, subcylindricus, subtiliter pubescens, niger; capita 

 brevi, granidato, ad labrum transverse depresso,fasco, antice rufo- 

 fusco, inter oculos flavo binotato ; thorace transverso, ad basin 

 subconstricto, later ibus pcene angulatis, antice globoso, ad basin 

 transverse depresso ; elytris subcylindricis, punctato-striatis ; an- 

 tennis filiformibus, sat robustis, nigris ; pedibus fuscis,tibiis tar- 

 sisque anterioribus et femoribus posticis (sitffuse) nigro-fuscis. 



Long. corp. 2J-3 lin., lat. li-lf lin. 



Oblong, ovate, subcylindrical, somewhat robust, finely pubescent, 

 black. Head very short, depressed, not vertical, slightly produced in 

 front ; eyes distant, somewhat prominent, extending laterally to the 

 line of the margin of tho thorax ; antennas approximate ; the sur- 

 face of the head is granulated ; below the insertion of the antennas 

 is a broad transverse triangular subdepression ; the colour of the 

 head below the antennas is rufo-fuscous, and above dark fuscous ; 

 between the eyes (situate at their inner margin, and immediately 

 above the insertion of the antennas) are two small flavous markings, 

 apparently caused by pubescence. Thorax transverse, subconstricted 

 at the base ; the anterior angles arc broadly obliquely truncate ; the 

 sides are marginate and, medially, almost angulatcd ; at the base is a 



