698 REVISION OF THE GENUS HETERONYX, 



not at all close ; the ventral series consist of stout hairs springing 

 from small granules and are very conspicuous. The hind femora 

 are moderately wider than the intermediate, and have their inner 

 apical angle scarcely marked. The lower two teeth of the anterior 

 tibiae are robust and sharp, the uppermost is all but obsolete, its 

 place being indicated by a mere nick on the tibial outline. The 

 inner apex of the basal piece of the hind claws is feebly produced 

 in a kind of tooth. 



This species is undoubtedly allied in many respects to the 

 H. vacuus group, from which its hind coxas (considerably longer 

 on the external margin in proportion to the length of the meta- 

 sternum) will at once distinguish it. I think it is a somewhat 

 isolated form. Its pale yellowish-brown colour is peculiar and 

 apparently constant. 



Mulwala, N.S. W. ; taken by Mr. T. G. Sloane. 



H. LONGULUS, sp.nov. 



Elongatus ; postice vix dilatatus ; subnitidus ; flavo-ferrugineus, 

 pilis brevibus adpressis minus sparsim vestitus ; clypeo crasse 

 rugulose, capite prothoraceque subtiliter sat crebre, elytris pygi- 

 dioque minus subtiliter minus crebre, punctulatis ; labro clypeum 

 late sat fortiter saperanti ; antennis 9-articulatis ; unguiculis 

 appendiculatis ; unguiculorum posticorum parte basali apicali 

 parum longiori ; coxis posticis metasterno vix brevioribus. 



[Long. 3-4, lat. U- 14 lines. 



Apart from colour and puncturation this species bears so much 

 resemblance to H. suhferrugineus and doctus that the description 

 of the former of these species may be taken to apply to the pre- 

 sent one subject to the following remarks : — the colour is ferru- 

 ginous (a little more yellowish than is common in the genus, but 

 not at all "orange " in tone), and there is no velvety pruinose 

 or iridescent appearance whatever ; the elytra are a little more 

 dilated behind the middle; the convexity of the body is not 



