156 REVISION OF THE GENUS HETERONYX, 



rugulose, prothorace fortiter minus crebre, elytris fortiter sub- 

 squamose minus crebre, pygidio (hoc capillis erectis dense vestito) 

 crebre minus fortiter, pnnctulatis ; tibiarum anticarum dentibns 

 externis validis ; labro clypeura minus late sat fortiter superanti ; 

 antennis 8-articulatis ; tarsorum posticorum articulo basali 

 secundo fere tertia parte breviori ;* unguiculis appendiculatis. 



[Long. 4, lat. 21 linos. 



Clypeus with a strongly reflexed margin obsolete in the middle, 

 which is rather strongly eniarginate ; " tiilobed outline " of head 

 strongly defined — the middle lobe appearing less than half as 

 wide, and the same length, as the lateral ones. The clypeus does 

 not form an even surface with the rest of the head, and the 

 clypeal suture is strongly impressed and somewhat angulated in 

 the middle. The prothorax is slightly more than half again as 

 wide as long, its base about half again as wide as its front, which 

 is rather strongly eniarginate with sharp prominent angles ; the 

 sides are nearly parallel in their basal half, thence arcuately 

 converging forward and forming (as viewed from a particular 

 point above) rather sharp right angles with the base, which is 

 moderately bisinuate and rather strongly lobed in the middle. 

 The transverse wrinkling of the elytra is only moderately 

 defined, there is scarcely any trace of striation, the lateral fringe 

 is normal, the apical membrane well defined. The general 

 puncturation is coarser than in any of the species hitherto men- 

 tioned in this Memoir as common, but it nevertheless bears much 

 resemblance to that of H. gracilipes. The hind femora are very 

 little wider than the intermediate, their inner aj^ical angle 

 scarcely prominent. The hind coxae are much shorter than the 

 metasternum (both being rather strongly, and at the sides closely, 

 punctured — the latter more sparingly in the middle, the former 

 obsoletely in the antero-internal region) and very evidently longer 



*Tlie length of the basal joint is of course measured from its point of 

 insertion within the apical cavity of the tibia ; casually glanced at it 

 appears even shorter still. 



