1238 REVISION OF THE GENUS HETERONYX, 



quite sharp ; the claws are decidedly longer, those of the hind 

 legs being very slender with the basal piece scarcely twice (and 

 its inner apical projection less than half) as large as the apical 

 piece. In my unique example (a male) the front claws are bifid. 

 Port Lincoln, S. Australia. 



H. FissiCEPS, sp nov. 



Sat elongatus ; postice minus dilatatns; sat nitidus ; ferruginous, 

 pilis sat brevibus adpressis sparsim vestitus ; capite toto crebre 

 rugulose sat sequaliter, prothorace pygidioque leviter subtiliter 

 minus crebre, elytris subtiliter sat crebre, punctulatis ; clypeo 

 antice profunde triangulariter excise, labro clypei superficiem haud 

 attingenti ; antennis 9-articulatis ; unguiculis bifidis. 



[Long. 3, lat. 1| lines. 



The anterior emargination of the clypeus (the reflexed border of 

 which is strong and continuous) is so deep as to indent it not much 

 less than half-way to the clypeal suture which is carinated and 

 very conspicuous ; the labrum is scarcely protruded forward and 

 does not rise very near the level of the clypeus, but the deep 

 excision of the latter renders it visible from above. The prothorax 

 is a little more than | again as wide as long, the base (which is 

 moderately convex hind ward all across) being about half again as 

 wide as the front, which is moderately concave with fairly well- 

 produced sharp angles ; the sides are somewhat feebly arched and 

 the hind angles are much rounded off; the puncturation is fine 

 and lightly impressed, and spaced so that about 18 or 19 punc- 

 tures of average distance apart would range down the middle line. 

 The puncturation of the elytra is a little closer and a trifle 

 stronger, their transverse wrinkling is little noticeable, their 

 lateral fringe normal, their apical membrane scarcely developed. 

 On the underside the hind coxae are a good deal shorter than the 

 metasternum ; they and it are lightly and somewhat closely, but 

 not finely, punctured. The puncturation of the ventral segments 

 is sparse and so feeble as to be almost obsolete ; the ventral series 

 consist of fine hairs and are conspicuous. The hind femora are not 



