684 REVISION OF THE GENUS HETERONYX, 



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

 which is widely and not very strongly concave, with sharp moder- 

 ately prominent angles ; the sides are gently arched ; the base is 

 gently bisinuate and strongly lobed hindward ; the hind angles 

 are exceptionally well defined. The elytra have little or no trace 

 of striation ; their transverse wrinkling is ill defined, their lateral 

 fringe normal, their apical membrane obsolete. The description 

 of the underside and legs of R. montanus, Blackb., may be read 

 as applying to this species, with the following exceptions : — the 

 Isevigate space on the hind coxEe is unusually large, the punctura- 

 tion of the ventral segments is feeble at the sides and obsolete in 

 the middle, the inner apical angle of the hind femora though much 

 rounded is distinctly prominent, the apical piece of the hind claws 

 is smaller and the uppermost tooth on the anterior tibiaj is very 

 much larger in proportion to the others, being much more than 

 half as large as the intermediate one; a very distinct species; the 

 puncturation of the front of the prothorax much finer and closer 

 than on any oth^r part of the surface together with the exceptionally 

 large uppermost tooth on the front tibiee will characterize it 

 strongly among its allies. The elytra! sculpture is of a decidedly 

 coarse type resembling more or less that of H. nigellus, auricomus, 

 piger, &c., &c. 



Sedan, S.A. ; taken by Mr. Rothe. 



H. PUNCTicoLLis, sp.nov. 



Minus elongatus ; postice sat dilatatus ; sat nitidus ; ferruginous, 

 antennis testaceis ; pilis minutis adpressis obscure sparsim vesti- 

 tus j capite crebre rugulose, prothorace crebre subtiliter, elytris 

 multo fortius sparsius, pygidio subtilius valde sparsim, punctulatis ; 

 labro clypeum fortius nee late superanti ; antennis 9-articulatis ; 

 unguiculis appendiculatis, unguiculorum posticorum parte basali 

 apicali sat longiori apice breviter producta ; coxis posticis meta- 

 sterno sat brevioribus. [I^ong. 3^, lat. 2-1- lines. 



The "trilobed" appearance of the head is almost as in the 

 preceding species, but the lobes do not appear quite so prominent. 



