1242 REVISION OF THE GENUS HETERONYX, 



piece being very conspicuously produced ; this produced apex 

 however is very slender, and not quite half as large as the apical 

 piece, — but I am not sure the insect would not be more at home 

 among those with bifid claws. 



H. piNGUis, sp,nov. 



Minus elongatus ; postice dilatatus ; sat nitidus ; niger, elytris 

 piceis, antennis, palpis, pedibusque obscure rufo-piceis ; pilis 

 brevibus adpressis griseis sat sparsim vestitus; capite crebre, 

 prothorace et elytris minus crebre, sat crasse punctulatis ; pygidio 

 opaco subtiliter subcrebre punctulato ; labro clypeum sat fortiter 

 sat anguste superanti ; antennis 8-articulatis ; unguiculis posticis 

 appendiculatis ; coxis posticis metasterno sat brevioribus. 



[Long. 5 (vix), lat. 2J lines. 



The head is unusually narrow; its "trilobed" appearance is 

 very well defined, the middle lobe appearing scarcely so long, and 

 about half as wide, as the lateral lobes. The margin of the 

 clypeus is strongly reflexed except in the middle where it is quite 

 obsolete ; the clypeus does not form a continuous surface with the 

 rest of the head from which it is separated by a feebly angular 

 suture. The ]:)rothorax is about | again as wide as long, its base 

 (which is feebly bisinuate and moderately lobed hindward in the 

 middle) being about | again as wide as the front, which is rather 

 strongly concave with fairly produced sharp angles ; it is widest 

 near the base ; its sides are gently rounded ; the hind angles 

 appear fairly defined from the most favourable point of view, the 

 puncturation is spaced so that about 15 or 16 punctures of average 

 distance apart would range down the middle line. The transverse 

 wrinkling of the elytra is moderately defined, their lateral fringe 

 normal, their apical membrane very distinct. The hind coxae are 

 considerably shorter than the metasternum, and considerably 

 longer than the 2nd ventral segment ; they and the metasternum 

 are punctured rather strongly, — somewhat closely at the sides, less 

 so towards the middle, — the l^evigate antero-internal space being 

 scarcely defined. The ventral segments are punctured more finely, 



