BY THE REV. T. BLACKBURN. 159 



defined, otherwise as that of H. nigellus ; surface of clypeus not 

 quite uniform with that of rest of head, clypeal suture fairly 

 impressed and angulated. Prothorax about three-fifths again as 

 wide as long, its base less than half again as wide as its front, 

 which is moderately emarginate, with fairly prominent angles; the 

 sides converge arcuately from base to front ; most strongly near 

 front ; they form (viewed from above) strongly rounded angles 

 with the base which is moderately bisinuate and feebly and widely 

 lobed in the middle. The puncturation of the elytra is very 

 uniform with that of the prothorax, except that it shows a little 

 tendency to be squamose ; the transverse wrinkling of the elytra 

 is feeble, their lateral fringe normal, their apical membrane little 

 defined. The prothorax is evidently more sparingly and feebly 

 punctured than that of H. nigellus, gracilipes, &lc., and much more 

 closely than that of Augustce and others ; the elytra are more 

 sparingly punctured than is usual in the genus. The hind femora 

 are evidently wider than the intermediate, their inner apical anc^le 

 rather feeble and blunt. The hind coxae are considerably shorter 

 than the metasternum and longer than tlie 2nd ventral segment. 

 Tlie description of the anterior tibiae and the puncturation of the 

 under surface in H. nigellus (above) may be applied to this 

 species ; the ventral series, however, seem more conspicuous than 

 in H. nigellus, and the uppermost tooth on the anterior tibi^ is 

 a little more acute. 



Darling River ; in collection of Hon. W. Macleay. 



H. CYGNEUS, sp.nov. 



Sat elongatus ; postice vix dilatatus ; sat convexus ; ferru- 

 gineus; pilis sat dense vestitus ; clypeo crebre rugulose, capite 

 postice minus crebre, prothorace elyt risque sat for titer minus 

 crebre, pygidio sat sparsim sat leviter, punctulatis ; tibiarum 

 anticarum dentibus externis inferioribus 2 validis ; labro clypeum 

 sat late sat fortiter superanti ; an tennis 8-articulatis ; unguiculis 

 appendiculatis. [Long. 3|, lat. 1| lines. 



