BY THE REV. T. BLACKBURN. 679 



produced into a sharp tooth. The example before me, moreover, 

 is less nitid than H. nigrinus and of a different colour. 

 N. Territory of S. Australia ; taken by Dr. Bovill. 



H. RAP AX, sp.nov. 



Minus elongatus ; postice dilatatus ; subnitidus ; ferrugineus, 

 antennis palpisque testaceis ; pilis sparsis fulvis adpressis parum 

 perspicue vestitus ; clypeo crebre rugulose, capite postice prothorace 

 elytris (his transversim rugatis, longitudinaliter vix perspicue cos- 

 tatis) et pygidio multo minus crebre, fortius punctulatis ; labro 

 clypeum sat fortiter sat anguste superanti ; antennis 9-articulatis ; 

 unguiculis elongatis appendiculatis, unguiculorum posticorum 

 parte basali apicali multo longiori ; coxis posticis metasterno sat 

 brevioribus. [Long. 4|, lat. 2J lines. 



The trilobed appearance of the outline of the head is fairly 

 well defined, the middle lobe being about as long, and rather more 

 than half as wide, as the lateral ones, — none of them however 

 being very prominent. The clypeus is roundly and moderately 

 concave across the front and finely margined all across, — its sur- 

 face coarsely and closely but not deeply rugulose, punctulate, — its 

 suture feebly angulated in the middle, and carinated except in the 

 middle part (if this be a constant character it is highly distinctive), 

 its plane scarcely distinct from that of the rest of the head which 

 IS punctured (like the prothorax) smoothly, rather closely and not 

 deeply. The prothorax is very nearly twice as wide as long, its 

 base not quite half again as wide as its front which is somewhat 

 deeply concave with angles well produced but not very sharp ; the 

 sides are gently arched, the base strongly bisinuate but not much 

 lobed hind ward in the middle, the hind angles rounded. The 

 elytra are punctured a little more closely and coarsely than the 

 prothorax and somewhat squamosely, their transverse wrinkling is 

 rather conspicuous, their sculpture becomes evidently finer and 

 feebler towards the apex, their lateral fringe is normal, their apical 

 membrane scarcely indicated. The hind coxae are considerably 

 shorter than the metasternum and much longer than the 2nd 

 44 



