164 REVISION OF THE GENUS HETERONTX, 



less than twice as wide as long) of which the hinder angles are 

 slightly more defined and the base is a little more strongly 

 bisinuate while the surface is evidently more finely and decidedly 

 less sparsely punctured, by the much finer (though still not par- 

 ticularly fine) puncturation of its elytra; by the very unusually 

 fine and close puncturation of the middle part of its ventral 

 segments, the somewhat larger Itevigate space at the antero- 

 internal part of the hind coxae, and by the somewhat feebler 

 external structure of its front tibiae which have their lower tw^o 

 teeth smaller and evidently shorter than those of H. crassus (in 

 all respects not specified above the description of H. crassics may 

 be taken as applying to H. anceps) ; from H. Augnstce it differs 

 by the much less close puncturation of the hinder part of the 

 head as compared with that of the clypeus, by the somewhat less 

 rotundity of the hind angles of the prothorax (this difference is 

 only slight), by the fine close and strongly defined puncturation 

 of the middle part of the ventral segments, and by the very 

 much feebler external structure of the anterior tibiae, as well as 

 other characters. 



Adelaide district ; I find it in several collections, but not in 

 numbers. 



H. Sloanei, sp.nov. 



Sat elongatus ; postice leviter dilatatus ; sat convex us; ferru- 

 gineus, antennis palpisque testaceis ; pilis pallide fulvis vestitus ; 

 clypf^o crebre rugulose, capite postice crasse minus crebre, pro- 

 thorace sat fortiter sat crebre (huic angulis posticis, certo visu, 

 rectis), elytris squamose subrugulose sat crebre, pygidio (hoc 

 breviter sparsius piloso) subtilius sparsius, punctulatis ; tibiia 

 anticis externe fortiter dentatis ; labro clypeuni sat anguste sat 

 fortiter superanti ; antennis 8-articulatis ; unguiculis appen- 

 diculatis. [Long. 4^, lat. 2/o lines. 



Clypeus moderately emarginate in front ; " trilobed outline " of 

 head well defined, the middle lobe appearing scarcely more than 

 half as wide, and about the same length, as the lateral ones ; 

 surface of clypeus quite distinct from that of rest of head, 



