162 REVISION OF THE GENUS HETERONYX, 



feeble, the middle lobe appearing considerably more than half as 

 wide as the lateral ones ; surface of clypens almost uniform with 

 rest of head, clypeal suture finely impressed, angulated in middle. 

 Prothorax about half again as wide as loDg, the base a little more 

 than half again as wide as the front, which is rather strongly 

 emargmate and slightly bisinuate with sharp prominent angles, 

 the sides gently arched, the hind angles quite rounded off, the 

 base scarcely bisinuate but moderately lobed hindvvard all across. 

 The puncturation of the elytra is very squamose in appearance, 

 the transverse wrinkling strongly defined, the lateral fringe 

 normal, the apical membrane distinct. The sculpture of the 

 upper surface is extremely like that of H. Julvo-hirtus (Section 

 I. of the genus). The hind coxse are much shorter than the 

 metasternum and evidently longer than the second ventral seg- 

 ment. The under surface is rather evenly punctured, closely and 

 moderately strongly on the sides, — more sparsely and feebly in 

 the middle, the impunctate antero-internal space on the hind 

 coxpe being scarcely noticeable. The ventral series are moderate ; 

 the hind femora moderately wider than the intermediate, their 

 inner apical angle rounded and little prominent. The uppermost 

 tooth on the anterior tibiae is very small. The external outline 

 of the tibia from its base to the apex of the uppermost tooth is 

 straight. 



Port Lincoln. 



H. AuGUSTiE, sp.nov. 



Minus elongatus ; postice sat dilatatus ; sat convexus ; ferru- 

 gineus, antenuis palpisque testaceis ; pilis pallidis vestitus ; capite 

 crebre rugulose, prothorace subtilius sat sparsim, elytris subtilius 

 sat crebre squamose, pygidio leviter minus crebre, punctulatis ; 

 tibiarum anticarum dentibus externis validis ; labro clypeum sat 

 late sat fortiter superanti ; antennis 8-articulatis ; unguiculis 

 appendiculatis. [Long. 5J, lat. 2| lines. 



The head scarcely difiers from that of H. crassits ; the labrum, 

 however, rising slightly more above the level of the clypeus, and 

 the puncturation of the hinder part of the head differing less 



