72 



the charactei's that distinguish the others from it. It may 

 be noted that the present species is of evidently less convex 

 form than //. striatus. I have two specimens, both of which 

 are, I think, females. The less coarse, more evenly distri- 

 buted, and much more numerous punctures of the pronotum 

 separate sahhrosaa quite I'eadily from atriatus. On the ven- 

 tral segments of the former there are onlj^ a few fine punc- 

 tures besides the transverse series of larger setiferous punc- 

 tures, while on tliose of stria! us (especially on the lateral 

 part) there is fairly close quite strong puncturation among 

 which the transverse series are scarcely distinguishable as 

 series. 



North Queensland ; Diamantina (Mr. Koebele). 

 H. seriatus, sp. nov. Sat elongatus, jDostice vix dilatatus ; 

 subdepressus ; minus nitidus ; f errugineus ; supra ut H. 

 striatus, Blaekb., vestitus ; capite fere ut H. striati 

 (clypeo exemjjli typici antice subtruncato), sed labro for- 

 titer arcuato), clypeo fronteque fere planum continuum 

 efficientibus ; prothorace fere ut //. striati sed antice 

 paullo minus angustato, lateribus (superne visis) mani- 

 feste minus arcuatis, margine basali ad latera quam alibi 

 vix magis elevato ; elytris fere ut H. striati sed puncturis 

 paullo minoribus nonnihil magis crebre (trans elytron 

 circiter 1 6) magis seriatim impressis ; segmentis ventrali- 

 bus sublsevibus (seriebus puncturarum setiferarum ex- 

 ceptis) , cetera ut //. striati. Long., 54 1.; lat., 2| 1. 

 This species is notably less nitid, narrower, more elon- 

 gate, more parallel than either 11. ■•striatus or H. salebrosus, 

 and is distinctly of more depressed form. Other distinctions 

 from H. striatus are enumerated above. The form of the 

 labrum is worthy of especial notice ; looked at from in front 

 it is seen to be strongly arched, while in its two allies the 

 arch of the labrum is quite feeble, resembling that of /7. jiiba- 

 tus. The unusually seriate arrangement of the elytral punc- 

 turation is also a distinctive character. I believe the unique 

 type to be a male. The puncturation of the dorsal surface 

 (especially of the pronotum) is very considerably more sparse 

 than in H. salehros^is. 



North Queensland; Gulf of Carpentax'ia (Mr. French). 

 II. Carteri, sp. nov. Minus elongatus, postice vix dilatatus; 

 minus nitidus ; obscure ferrugineus, corpore subtus pice- 

 scenti ; supra pilis erectis minus elongatis confertim (non- 

 nullis multo longioribus intermixtis) vestitus ; clypeo 

 (hoc antice late rotundato) fronteque crebre rugulosis, 

 ut plana sat disparia visis ; labro clypei planum baud at- 

 tingenti ; antennis 9-articulatis, articulo 3° quam 2us 

 breviori ; prothorace quam longiori ut 11 ad 7 latiori, 



