686 REVISION OF THE GENUS HETERONYX, 



parvis positis) in prothorace elytrisque sparsim instmctus ; obscure 

 ferrugineus, palpis antennisque testaceis ; confertim subtLliter 

 (clypeo sat rugulose pygidio a basi gradatim minus crebre) punctu- 

 latus ; labro clypeum sat fortiter sat late superanti ; antennis 9- 

 articulatis ; unguiculis appendiculatis : unguiculorum posticorum 

 parte basali apicali baud longiori ; coxis posticis metasterno baud 

 brevioribus. [I-ong. 6-74, lat. 3f-4 lines. 



Yar. Corpore toto (antennis palpisque testaceis exceptis) piceo 

 vel piceo-nigro. 



The " trilobed outline '' of the front of the head is well defined, 

 the middle lobe slightly longer than, and decidedly more than half 

 as wide as, the lateral lobes. The clypeus is rather strongly 

 reflexed at the sides, not margined across the front, moderately 

 concave in front, its sides slightly convergent hindward imme- 

 diately in front of the eyes but not at all angulated, its sculpture 

 a little more coarse and rugulose than that of the rest of the head 

 which does not form a continuous surface with it, and is separated 

 from it by a somewhat wavy suture. The prothorax is not quite 

 I again as wide as long, its base rather more than half again as 

 wide as its front which is moderately concave, with front angles 

 sharp but not very much produced ; its sides are gently arched, 

 and most divergent close to the base ; the hind angles are (from 

 some points of view) not quite non-existent but they are much 

 rounded ; its base is decidedly bisinuate, and narrowly but not 

 strongly lobed hindward in the middle. The elytra are very 

 obsoletely costate, the lateral fringe normal, their apical membrane 

 distinct, their transverse wrinkling fine and minute but distinct, 

 their puncturation a little finer and closer than in H. normalis. 

 The hind coxse are very fully as long as the metasternum ; both are 

 lio-htly, closely and rather evenly squamose-punctulate, the former 

 with a very small antero-internal Isevigate space, the latter with 

 numerous scattered granules. The ventral segments are punctured 

 like the hind coxse but less closely, — the middle part more finely 

 than the sides. The ventral series are very conspicuous and con- 

 sist of stout bristles. The hind femora are very much wider than 

 the inter mediate, their inner apical angle obtuse but fairly defined. 



