llVr'ANTHERUS. 99 



the first ; the sixth to the eighth dilated ; the colour of the first and 

 second rufo-flavous, the third to fifth flavous, the sixth to eighth 

 black, the ninth to eleventh flavous. Legs: the anterior flavous 

 throughout ; on the outer edge of the posterior tibiae, near the apex, 

 is a minute spur- like projection ; the femora pubescent, rufo-fuscous ; 

 the tibiae and tarsi rufo-fulvous. 



In form and general appearance this insect is closely allied to H. 

 concolor ; it may be separated, however, by its greater length, its pro- 

 portional narrowness, as well as by the difference of its colouring, — 

 by the difference of the sculpturing at the apex of the head, and by 

 the character of its punctuation and pubescence on the elytra. 



From the district of the Amazon. In the collection of Mr. Bates. 



3. Hypantherus assiniilis. 



H. oblongo-ovatus, robustus, Jlavo-pubescens, rufo-ferrugineus; 



capite brevi, inter oculos V carinato, impunctato ; thorace trans- 

 verso, cequato, rectangulari ; elytris latis, subeylindricis, punctato- 

 striatis, ante medium transverse depressis ; antennis Jiliformibus, 

 ferrugineis, art. 6-11 fuscis ; pedibus rufo-ferrugineis. 



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



Oblong-ovate, robust, finely flavo-pubescent, rufo-ferrugineous. 

 Head short, transverse, slightly produced in front ; between the la- 

 brum and the base of the antenna? are a longitudinal medial and also 

 two oblique carinations ; above the base and between the eyes are 

 also two oblique carinations, forming together the character of the 

 letter V ; eyes lateral, globose, situated nearly at the base of the head ; 

 the surface is subpubescent, more distinctly at the inner margin of 

 the eyes, at the base impunctate, and rufous. Thorax transverse 

 (almost quadrate) ; the anterior angles depressed and subacute, the 

 sides marginate and subparallel ; the surface is inclined, equate, and 

 subpubescent. Scutellv/m small, triangular, fuscous. Elytra broad, 

 robust, subcylindrical, slightly tapering towards the apex, finely 

 punctate -striate, evenly and obsoletely pubescent; when viewed 

 obliquely, a shallow transverse antemedial depression is apparent. 

 Antennce robust, filiform, slightly thickened near the apex, ferrugi- 

 neous, the sixth to the eleventh joints being fuscous. Legs robust, 

 rufo-ferrugineous, and subpubescent. 



A single example of this species was taken by Mr. Squire in the 

 neighbourhood of Rio Janeiro, and is in the cabinet of Mr. Baly. It 

 differs from H. ambiguus by its filiform (not broadly incrassated) an- 

 tennae, by its shorter and comparatively more robust form, and by 

 the obsolete stria? on the elytra. 



h2 



