Scarabseidse in the British Museum. 357 



other by a somewhat wide emargination), truncated at their 

 apex, the angles of the truncature slightl}'- and obtusely denti- 

 form. The elytra have the striae less deep. 



I am making this comparison with a specimen in Mr. B. 

 Nevinson's collection which I have determined to be P. 

 incisus. 



Ontherus Nevinsoni, sp. n. 



Oblongus, convexus, sat nitidus, riifo-piceus ; capita postice subtiliter 

 piinctulato, clypeo transversira ruguloso, antice laevissime emar- 

 ginato ; thorace subtiliter punctato, disco fere laevi ; elytris 

 evidenter crenato-striatis, interstitiis perparum convexis, siibtilis- 

 sime punctulatis, fere Itevibus, in c? subsericeo-micantibus. 



cJ . Capite cornu sat elevato, leviter curvato acuminato ; thorace 

 antice subito declivi, parte elevata antice subquadrituberculata ; 

 tibiis anticis tridentatis. 



2 • Capite cornu brevissimo, bituberculato ; thoraco minus convexo, 

 antice minus declivi, parte elevata medio vix binodosa. 



Long. 6| lin. 



Hab. Bolivia, Yungos. 



This species is very like the preceding, but is broader and 

 of stouter build. The thorax is distinctly punctured in front 

 and at the base, particularly in the middle. The male has 

 no incision behind the eye in the front margin of the thorax. 

 The declivous part is much nearer the front margin ; the 

 front margin of the raised part might almost be said to be 

 quadrinodose, but the outer nodes are mere slight swellings ; 

 the middle nodes are very small but more distinct. The 

 female has a slight indication of two nodes at the anterior 

 part of the thorax. 



Ontherus elongatuSy sp. n. 



Elongato-obloDgus, paullo convexus, niger, nitidus ; capite vertice 

 utrinque subtiliter punctulato, tuberculo brevi acuminato instructo, 

 clypeo transversim ruguloso, antice vix emarginato ; thorace sub- 

 tiliter sat crebre punctulato, latera versus distinctius punctato, 

 disco obsolete longitudinaliter impresso, antice prope marginem 

 oblique declivi ; elytris sat parallelis, ad apicera arcuatim rotun- 

 datis, fortiter striatis, striis fere Isevibus, interstitiis parum con- 

 vexis, parce subtilissime punctulatis ; femoribus posticis elongatis, 

 supra ad apicem dente triangulari producto. (S . 



Long. 7|, lat. 4^ lin. 



Hab. Venezuela. 



This is more elongate and less convex than most of the 



Ann. d', Mag. N. Hist. Ser. 6. Ko^. vii. 25 



