RHIXOTMF.TUS. 



49 



oblique et transverse depressis ; antennis brevibus, nigro-fuscis : 

 pedibus nigris, posticis tibiis tarsisque fusco adumbratis. 



Long. corp. 2^ tin., lat. 1 lin. 



Oblong-ovate, impubescent, dull dark red, shining. Head narrow, 

 produced in front ; eyes large, somewhat prominent, situated at some 

 little distance from the base of the head : from the labrum to the 

 insertion of the antenna? (when viewed from above) is a central lon- 

 gitudinal ridge ; this, at the base of the antenna?, divides itself into 

 two diverging elevated lines (in form together resembling the letter 

 V) ; at their upper extremities these oblique carinations terminate 

 in two large and still more transverse tubercles which are situate at 

 the upper and inner margin of the eyes : surface of the head granu- 

 lated and black. Thorax somewhat elongate, with the lateral mar- 

 gins anteriorly depressed, and therefore apparently somewhat con- 

 stricted ; sides slightly marginate, subcylindrical ; from the apex to 

 the base is an obsolete medial longitudinal channel ; surface shining, 

 impunctate (under a higher power minute and irregularly distributed 

 punctures are apparent, especially at the base), black. Scutellum 

 very small, almost obsolete, depressed below the plane of the elytra, 

 fuscous. Elytra parallel, slightly depressed, with rows of distinct 

 punctures arranged in the form of stria? ; a transverse broad ante- 

 medial depression is on either side inclined obliquely towards the 

 shoulders (and also, less apparently, along the line of the suture 

 to the scutellum), which gives a degree of prominence to the base. 

 Antennce filiform, short, black ; the first joint dilated at the apex ; 

 second short, ovate ; third, fourth, and fifth nearly equal. Legs 

 black, with the posterior tibia? and tarsi clouded with fuscous. 



Brazil. In the collection of M. Deyrolle. 



15. Rhinotmetus Deyrollii. 



R. oblongo-ovatus, elongatidns, punctato-striatus, flavo-fulvus ; 

 capite producto, glabro ; thorace subelongato, antice coarctato, ad 

 basin depresso ; elytris subdepressis, parallelis ; antennis robust is, 

 filiformibus ; pedibus robustis,j\avo-fidvis. 



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



Oblong-ovate, subparallel, slightly elongate in front, subdepressed, 

 punctate-striate, impubescent, of a flavo-fulvous colour throughout. 

 Head transverse, produced in front ; below the base of the antennae 

 is an obliquely transverse groove ; above the base of the antennae 

 and between the eyes are two tolerably large, distinct, tubercular 

 elevations, rendered more apparent by an intervening fovea and an 



E 



