BY THE REV. T. BLACKBURN. 489 



KK. Size medium, prothorax 



moderately transverse terrena, Blackb. 



II. Uppermost tooth of front 



tibia? scarcely defined pubescens, Er. 



HH. Sculpture of prothorax much 

 more sparse than of head 



and elytra *Victoris, Blackb. 



HHH. Sculpture of prothorax and 

 elytra subequal; that of 

 head much more coarse 

 and rugulose. 



I. Prothorax only very slightly 



narrowed anteriorly incognitus, Blackb. 



II. Prothorax considerably nar- 



rowed anteriorly alpicola, Blackb. 



GG. Upper surface clothed with long 



erect hairs deceptor, Blackb. 



FF. Basal piece of hind claws not longer 



than the apical piece Froggatti, Mel. 



Heteronyx tridens, sp.nov. 



Minus elongatus; sat convexus ; postice sat dilatatus ; sat 



nitidus ; ferrugineus, antennis dilutioribus ; pilis brevibus 



sparsim vestitus ; capite crebre crasse rugulose, prothorace 



fortiter nee crebre, elytris crasse fortiter subcrebre, pygidio 



(hoc longe hirsuto) fortiter sat crebre, punctulatis ; tibiarum 



anticarum dentibus externis validis ; labro clypeum anguste 



minus fortiter superanti ; antennis 8-articulatis ; unguiculis 



appendiculatis; unguiculorum posticorum parte basali quam 



pars apicalis parum longiori. % [Long. 4J, lat. 2°g lines (vix). 



In many respects this species resembles H. nasutics, Blackb., 



(P.L.S.N.S.W., 1889, p. 147), the puncturation (except of the 



pygidium) and the remarkable structure and relation of the 



* See note, ante p. 488. 



