696 REVISION OF THE C4ENUS HETERONYX, 



the basal piece much longer than the apical and having its inner 

 apex produced in a short sharp tooth. 



Widely distributed ; I have seen specimens from Queensland, 

 N.S.W., Victoria, and S. Australia, among which I find no varia- 

 tion likely to indicate specific distinction. The colour is in some 

 examples more or less pitchy. H. ijuhescens^ ISIacL, is probably 

 identical, but the name is pre-occupied by Erichson for a Tasman- 

 ian species which would fall in my Section I. 



H. MiMUS, sp.nov. 



Sat elongatus ; postice vix dilatatus ; subnitidus ; ferrugineus, 

 antennis palpisque testaceis ; pilis brevibus adpressis sat dense 

 vestitus ; capite prothoraceque sat crasse minus crebre, elytris 

 squamose sat crasse sat crebre, pygidio sparsius minus crasse, 

 punctulatis; labro clypeum fortiter peranguste superanti; antennis 

 9-articulatis ; unguiculis appendiculatis, unguiculorum posticorum 

 parte basali apicali sat longiori ; coxis posticis metasterno vix 

 brevioribus. [Long. 4^, lat. % lines (vix). 



Very near R. vagans, from which it differs in being a little more 

 elongate, and less dilated behind the middle, — in the considerably 

 more quadrate prothorax which is nearly I again as wide as long 

 and is not more than \ again as wide at the base as in front and 

 has its hind angles more rounded off, — in the absence of erect 

 hairs on the upper surface mixed among the general pubescence, — 

 in the greater uniformity of sculpture on the head, — and in the 

 much more distinct puncturation of the pygidium. 



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



H. FLAVUS, sp.nov. 



Sat elongatus ; postice leviter dilatatus ; minus nitidus ; flavo- 

 brunneus, capite prothoraceque sub-rufescentibus ; pilis minus 

 brevibus vix depressis sat sparsim vestitus; subtilius minus 



