168 REVISION OF THE GENUS HETERONYX^ 



H. DENTIPES, Sp.nOV. 



Sat elongatus ; sat convexus ; pone medium leviter dilatatus ; 

 sat nitidus ; piceo-ferrugineus, antennis palpisque testaceis ; vix 

 })ubescens ; clypeo crebre rugulose, capite postice sat for titer sat 

 crebre, prothorace (huic angulis posticis siibrectis) subtiliter sat 

 sparsim, elytris sparsius minus subtiliter, pygidio (hoc pilis per- 

 longis sparsim \estito) fortiter minus crebre, punctulatis ; clypeo 

 transversim concavo ; sutura clypeali fortiter carinata ; tibiarura 

 anticarum dentibus externis perlongis ; labro clypeum late minus 

 fortiter superanti ; antennis 8-articulatis ; unguiculis appendicu- 

 latis ; coxis posticis abdominis segmento 2^ subbrevioribus. 



[Long. 4, lat. 2 lines. 



Clypeus truncate in front with its front margin thickened in a 

 triangularly elevated manner ; " trilobed outline " of head only 

 fairly developed, the middle lobe appearing better developed and 

 very little narrower than the lateral ones ; clypeus oi very peculiar 

 form, being subcompressed longitudinally in the middle (thus 

 appearing rather abruptly convex down the middle) and at the 

 same time concave transversely ; the triangularly elevated apex 

 of the middle part of the clypeus seems to result from the trun- 

 cation of the compressed portion mentioned above. The clypeal 

 suture appears as a strongly elevated carina or " wheal " bisinuate 

 in front, and at the sides reflexed and running up the head (while 

 gradually sinking to the level of the surface) nearly to the level 

 of the back of the eyes. The prothorax is twice as wide as long, 

 its base a little more than J again as wide as its front which .is 

 moderately emarginate with fairly prominent sharp angles ; its 

 sides diverging from front to behind middle, thence nearly straight 

 to base, with which they form angles that viewed from a certain 

 position above appear (quite sharply) rectangular : the base dis- 

 tinctly (from some points of view strongly') bisinuate and 

 moderately lobed in the middle. Elytra with faint suggestions of 

 striation, their transverse wrinkling scarcely marked, their lateral 

 fringes normal, their membranous apex obsolete. The punctura- 

 tion of the upper surface in general is tiner, smoother, more sparing 



