694 REVISION OF THE GENUS HETERONYX, 



as wide as its front, which is feebly concave with angles sharp but 

 feebly produced ; its sides are gently arched and most divergent 

 scarcely behind the middle, its hind angles quite rounded off (from 

 all points of view) ; its base is gently bisinuate and very feebly 

 and widely lobed hind ward in the middle. The elytra have feeble 

 indications of several striae (especially a sutural one), their trans- 

 verse wrinkling is not apparent ; their lateral fringe is normal, 

 their apical membrane distinct. The underside and legs scarcely 

 differ from the same in H. 2^ustulosus except as follows : — the 

 metasternum is not granulate, the teeth on the front tibiae are 

 sharper, and the basal piece of the hind claws is longer in pro- 

 portion to the apical piece. 



This species differs little in puncturation from H. j^ustulosus, 

 elongafics, and agrestis, but it has a little of the velvety texture 

 and pruinose aspect of the insect I take to be H. suhferrugineus. 

 Apart from size it differs from them all in the structure of the 

 head ; from H. proxiina, Burm., (another nearly allied species) it 

 differs inter alia by its much smaller size, and distinct apical 

 membrane of the elytra; it also resembles H. bidentatus, Black b., 

 differing inter alia in the structure of the claws and the very 

 evidently finer and closer puncturation of the elytra. 



W. Australia ; sent by E. Meyrick, Esq. 



H. VAGANS, sp.nov. 



Minus elongatus ; postice leviter dilatatus ; subnitidus j ferru- 

 gineus, antennis palpisque dilutioribus ; pilis brevibus adpressis et 

 longis erectis minus dense vestitus ; capite (clypeo magis crebre 

 excepto) prothoraceque sat crasse minus crebre, elytris squamose 

 sat crasse sat crebre, pygidio (hoc opaco coriaceo) obscure, punctu- 

 latis ; labro clypeum fortiter peranguste superanti ; antennis 9- 

 articulatis ; unguiculis appendiculatis, unguiculorum posticorum 

 parte basali apicali sat longiori ; coxis posticis metasterno vix 

 brevioribus. [Long. 4f , lat. 2f lines. 



