RlilNOTMJSTUS. 37 



2. Rhinotmetus marginatus. (Front, fig. 3.) 



R. oblongo-ovatus, subparallelus, subcylindricus, pubescens, niger ; 

 capite elongate, antice carinato, super basin antennarum foveolato, 

 fiuvo-pubescenti, ad basin granulate; thorace quadrate, antice 

 constricto, subtiliter punctate, glabro ; elytris sat latis et robustis, 

 punctato-striatis, ad latera fascia dense rufo-testacea sericea mar- 

 ginatis; antennisjiliformibus, nigro-fuscis, ad basin rufo stiff usis; 

 pedibus nigris, femoribus anterioribus ad basin, posticisque tibiis 

 et tarsis rufo-testaceis (tibiis basalibus rufo-fuscis). 



Long. corp. 3 tin., lat. 1 tin. 



Oblong-ovate, subparallel, subcylindrical, less robust than R. lep- 

 tocephalus, faintly pubescent, black. Head narrow, broadly elongated 

 in the front : above the labrum is a medial longitudinal keel-like 

 ridge, which extends to the base of the antennae ; on either side of 

 this, two obliquely transverse carinations are produced to the lateral 

 margins of the labrum ; above the base of the antennae is an obsolete 

 and short longitudinal fovea: eyes large and tolerably prominent, 

 situated at some tittle distance from the base of the head ; at their 

 upper and inner margins is a very slight tubercle-like elevation, 

 which is rufous ; the surface between the eyes is sparingly flavo- 

 pubescent, and at the base coarsely granulated. Thorax quadrate 

 (almost elongated); the sides parallel, and narrowed in front so as 

 to meet the base of the head (not, as in B. leptocepJialus, gradually 

 constricted), broader than the head, with the anterior angles much 

 depressed, constricted, and obsolete; the sides submarginate ; near 

 the basal angles is a broad and obsolete depression ; a faint medial 

 longitudinal impression is apparent when viewed obliquely with a 

 high power; the surface very finely punctate and glabrous. Scutellum 

 triangular, impunctate, fuscous-black. Elytra broader than the 

 thorax, parallel, subelongate, rounded at the apex ; the surface near 

 the scutellary angles is very slightly raised ; punctate -striate (the 

 punctures being almost entirely concealed by a short and closely 

 squamose pubescence); from the fifth stria to the ninth (at the 

 distance of two strice from the lateral margination) is a longitudinal 

 band of close yellow or rufo-testaceous pile, completely clothing the 

 surface, commencing at the shoulders and extending nearly to the 

 apex. Antennae robust, filiform, faintly subpubescent, fuscous, the 

 basal joints being suffused with rufous. Legs black, the anterior 

 femora being at their base and extreme apex flavo-ferrugincous, and 

 the posterior tibia? and tarsi rufo-testaceous (the base of the tibia, 

 and the globular inflation immediately above the posterior claw being 

 rufo-fuscous). 



I took a single specimen of this beautiful and distinct species by 



