BY THE REV. T. BLACKBURN. 559 



Heteron'sx nitidus, sp.nov. 



Minus elongatus ; minus convexus ; postice leviter dilatatus ; 

 nitidus ; supra aetulis brevissimis erectis sparsim vestitus ; 

 ferrugineus, antennis palpisque dilutioribus ; clypeo (hoc 

 brevissimo) confertim rugulose, capite postice sat fortiter 

 sat crebre, prothorace sat fortiter vix crebre, elytris leviter 

 squamose sat crasse sat crebre, pygidio (hoc longe hirsuto) 

 minus fortiter sat sparsim, punctulatis ; tibiarum anticarum 

 dentibus externis sat validis ; labro a clypeo obtecto ; antennis 

 8-articulatis ; unguiculis appendiculatis. [Long. 4, lat 2^ lines. 



This species belongs to the 1 st Section of the genus, and in the 

 tabulation given in my " Revision " (P.L.S.N.S.W., 1888, p. 1328) 

 would fall side by side with H. frontalis, mihi, which it very closely 

 resembles, — indeed after a very careful examination I can specify 

 only the following distinctive characters ; H. nitidus is very much 

 tlie smaller species, its clypeus is (not evenly rounded but) a little 

 flattened or subtruncate in front, the puncturation of its pro- 

 thorax is a little more sparse, and that of its elytra consists (not 

 of isolated well defined punctures but) of obscure blurred-looking 

 punctures which from some points of view seem to be almost lost 

 in obscure rugulosities of the surface. The short erect hairs on 

 the upper surface are not at all noticeable until carefully looked 

 for, and I do not like to specify their presence as a mark of 

 distinction from H. frontalis because I think it possible that they 

 might be present in a fresh specimen of the latter. There is no 

 doubt of the specific distinctness of the two, — which is confirmed 

 by the very wide divergence of the localities in which they have 

 been found. 



Yilgarn, W. Australia ; sent to me by C. French, Esq. 



Heteronyx sydneyanus. 



Elongatus ; postice vix dilatatus ; minus nitidus ; pallide ferru- 

 gineus, antennis palpisque testaceis ; pilis minus brevibus 

 adpressis minus sparsim vestitus ; clypeo crasse rugulose, 



capite postice pygidioque subfortiter sparsius, prothorace et 

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