672 REVISION OF THE GENUS HETKRONYX, 



shorter in proportion to the metasternuin and 2nd ventral seg- 

 ment, — the undersurface is not coriaceous and is therefore more 

 nitid, — the puncturation of the metasternum is stronger and of 

 the hind coxse less coarse, — the ventral segments are much more 

 strongly punctured (especially in the middle). The hind tarsi are 

 short as compared with those of the preceding and following 

 species. 



It will be seen by the Latin diagnosis that the whole upper 

 surface is very much more strongly punctured than in H. jubatus. 

 The punctures on the prothorax are spaced so that about 16 or 17 

 averagely separated would range down the middle line. 



Also distributed widely in Southern Australia, but appears to 

 be less common than H. jubatus. 



H. FALL AX, Sp.nOV. 



Minus elongatus ; postice leviter dilatatus ; sat nitidus ; pilis 

 antice longis erectis, postice suberectis sat brevibus, vestitus ; 

 piceo-niger ; palpis, tibiis, tarsis, et elytris (parte antica excepta), 

 ferrugineis ; capite prothoraceque leviter sat crebre minus subti- 

 liter, elytris (his obscure striatis) squamose sat crebre subrugulose, 

 pygidio sparsim subtilius, punctulatis ; labro clypeum vix super- 

 anti ; antennis 9-articulatis ; unguiculis appendiculatis ; ungui- 

 culorum posticorum parte basali apicali vix longiori ; coxis posticis 

 metasterno manifesto nee multo brevioribus. [Long. 2% lat. 1^^ lines. 



Very like //. jubatus, the detailed description of which will 

 apply to this species subject to the following remarks : the trilobed 

 appearance of the front outline of the head is quite obsolete from 

 all points of view; owing to the very slight elevation of the labrum 

 above the clypeus (it does not rise at all above the reflexed 7nargi7i 

 of the front of the latter) it is quite invisible unless inspected from 

 a point whence the view is so little oblique that the apparent con- 

 tinuity of the outline of the labrum and clypeus is lost ; there is 

 no defined difference in sculpture between the clypeus and the rest 

 of the head; the hind angles of the prothorax are completely 



