438 REVISION OF THE GENUS HETERONYX, 



vestitus ; capite prothoraceque fortiter, elytris minus fortiter, sat 

 sparsius punctulatis ; labro clypeum sat leviter sat late superanti ; 

 antennis 9-articalatis ; iinguiculis breviter bifidis. 



[Long. 2f, lat. 14 lines (vix). 



The " trilobecl outline " of the head appears fairly well defined, 

 the middle lobe more than half as wide as, and slightly longer 

 than, the lateral lobes. The clypeus does not form a continuous 

 surface with the rest of the head from which it is separated by 

 a very well defined feebly angulated suture; it in widely and gently 

 emarginated in front with a continuous reflexed margin. The 

 puncturation of the head and prothorax is strong and coarse, 

 rather close on the clypeus, less so hindward. The prothorax is 

 not quite twice as wide as long, its base nearly half again as wide 

 as its front which is gently concave, with slightly prominent 

 angles ; the sides are very gently arched, the basal angles scarcely 

 defined from any point of view ; the base is scarcely bisinuate or 

 lobed. The elytra are punctured much as the prothorax but 

 scarcely so strongly, their transverse wrinkling is scarcely apparent, 

 their lateral fringe normal but not at all strong, their apical mem- 

 brane fairly defined. The puncturation of the pygidium (which 

 is clothed with long erect hairs) is very sparing but rather coarse. 

 The hind coxae are considerably shorter than the metasternum and 

 longer than the 2nd ventral segment ; these, and the metasternum 

 are rather closely set with very large deep punctures which do 

 not become much more sparing towards the middle ; the punctu- 

 ration of the ventral segments is sparing and not very strong on 

 the sides, but almost entirely obsolete in the middle. The ventral 

 series consist of long fine hairs and are but little conspicuous. 

 The hind femora are much wider than the intermediate and their 

 inner apical angle is scarcely prominent and quite rounded off". 

 The three external teeth of the anterior tibiae are all well defined 

 and sharp, — the lower two very strong, — the uppermost scarcely 

 half as large as the 2nd. The apical piece of the hind claws is 

 very minute, — much less than a quarter the size of the basal piece 



