702 EEVISION OF THE GENUS HETEROXYX, 



subtilius, pygidio leviter sparsim, punctulatis ; antennis 9-arti- 

 ciilatis ; labro clypeum late sat fortiter superanti ; unguiculis 

 appendiculatis ; unguiculorum posticorura parte basali apicali sat 

 longiori ; coxis posticis metasterno hand brevioribus. 



[Long. 2f, lat. Ig lines. 



The outline of the head does not from any point of view present 

 a distinctly " trilobed " appearance ; as in H. loeregrinus^ from 

 the most favourable point it appears as a continuous curve the 

 convexity of which is much stronger in the middle than at the 

 sides. There are some long erect hairs on the head and the front 

 of the prothorax. The clypeus is almost truncate in front, its 

 surface evenly continuous with that of the rest of the head from 

 which it is separated by a well marked angulated suture. The 

 prothorax is nearly f again as wide as long, its base (which is 

 wider than the base of the elytra) less than J again as wide as the 

 front, which is somewhat bisinuate with moderately sharp but not 

 strongly produced angles \ its sides are gently rounded ; its hind 

 angles fairly marked from some points of view though not at all 

 sharp nor directed hindward ; its base is rather narrowly, but 

 not strongly, lobed in the middle, the puncturation is spaced 

 so that about 20 punctures of average distance apart could be 

 placed in a line down the middle. The elytra have a fairly distinct 

 sutural stria but scarcely any indication of other strise ; their 

 transverse wrinkling is somewhat conspicuous, their lateral fringe 

 normal, their apical membrane scarcely distinct. The hind coxae 

 are a trifle longer than the metasternum, both being strongly 

 punctured even in the middle, but not very closely, the former 

 having a scarcely defined Isevigate antero-internal space. The 

 puncturation of the ventral segments is sparse and feeble ; the 

 ventral series consist of stout hairs and are conspicuous. The 

 hind coxae are a good deal wider than the intermediate, their 

 inner apical angle being fairly well defined. The teeth of the 



