HOMOTYPHUS. 123 



margin of the eyes it is clothed with a faint flavous pubescence. 

 Thorax slightly transverse, rectangular; the sides submarginate ; 

 the anterior angles extending beyond the base of the head, subacute ; 

 the surface complanate ; from the middle of the base a broad de- 

 pression extends on either side obliquely upwards towards the apical 

 angles ; the anterior and medial surface (being thus slightly raised) 

 is impressed longitudinally by an obsolete broad fovea ; the surface 

 is coarsely granulated, and clothed throughout with irregular flavous 

 subpubescence. Scutellum small, triangular, impunctate, subpu- 

 bescent, depressed below the surface of the elytra. Elytra broad, 

 robust, strongly punctate-striate, sulcated : an antemedial broad and 

 shallow transverse depression gives a prominence to the humeral 

 angles, while another (halfway between this depression and the 

 apex) produces two other elevations, one postmedially, and the other 

 nearer the apex ; along the basal transverse ridge, the space between 

 the first and fifth striae is distinctly raised ; in the postmedial ridge, 

 the surface between the second and third, the fourth and fifth, seventh 

 and eighth is abruptly raised: the surface is clothed throughout 

 (more or less distinctly) with bright flavous pubescence. Antennae, 

 short (hardly exceeding half the length of the body), incrassated ; 

 the first joint broad and dilated ; the second short, ovate, nearly as 

 broad as the first ; the third, fourth and fifth not quite so long as 

 the first, attenuated; the sixth to eleventh dilated; the sixth to 

 eighth dark fuscous, the rest ferrugineous. Legs flavous throughout, 

 pubescent. 



Captured by Mr. Gray and by myself in the forests near Petropolis 

 (Organ Mountains, Rio Janeiro), February 1857. 



2. Homotyphus Vellereus. 



H. ovatus, latus, subpubescens, flavo-ferrugineus ; capite brevi, de- 

 flexo, ad basin antennarum longitudinaliter foveolato ; thorace 

 transverso, rectilineari, ad basin transverse depresso, punctato, 

 subtiliter flavo-pubescenti ; elytris latis, punctato-striatis,flavo- 

 pubescentibus ; antennis (artic. quatuor testaceis) (reliqui desunt) ; 

 pedibus flams. 



Long. eorp. 21 lin., lat. \\ lin. 



Ovate, broad, subpubescent, flavo-ferrugineous. Head small, trans- 

 verse, deflected at right angles to the plane of the thorax, slightly 

 produced ; above the labrum is a transverse triangular depression ; 

 above the base of the antennae is an obsolete short longitudinal fovea, 

 on either side of which (near the inner margins of the eyes) the sur- 

 face is subdepressed ; eyes large and prominent, extending laterally 



