510 Mr. C 0. Waterhouse on new 



Caiharsius Anderseni^ sp. n. 



Oblongus, convexus, nigro-piceus, sat nitidus ; capite lato, semi- 

 circulari, confertim riigoso, antice medio emarginatione parva, 

 vertice tuberculo minuto nitido ; thorace convexo, sequali, disco 

 sat fortiter sat crebre punctato, lateribus granuloso-rugosis, puHcto 

 lateral! vix conspicuo ; eljtris nitidis, fortiter striatis, interstitiis 

 convexis sat crebre sat fortiter punctatis, carina laterali usque ad 

 medium contiunata ; tibiis anticis tridentatis. 



Long. Q\ lin. 



Hah. Lake Nyassa [Andersen). 



Allied to C. inermis, F., or C latifrons, Harold, but very 

 different from both on account of its strongly sculptured head 

 and thorax and convex, punctured interstices to the elytra. 

 The thorax has no trace of impressed median line ; the disk 

 is shining, with rather strong punctures, which are slightly 

 separated from each other at the posterior part, but have a 

 tendency to unite transversely in the front part ; at the 

 extreme base and at the sides the surface is rather coarsely 

 rugose ; the sides are nearly parallel at their middle, very 

 obliquely turned in in front, but forming a rather more distinct 

 angle than in either of the above-mentioned species. The 

 elytra have the striae deeply impressed, with very faint indica- 

 tion of crenulation ; the interstices are very convex, strongly 

 punctured (compared with its allies), the punctures slightly 

 separated from each other. The posterior tibi« are rather 

 more abruptly enlarged at their apex than in C. inermis^ the 

 upper carina is scarcely indicated. 



Caiharsius opacus, sp. n. 



Eotundato-ovalis, convexus, niger, opacus ; capite rugoso, antice 

 triangulariter emargiuato, et utrinque laevissime sinuato ; thorace 

 creberrime granulato-asperato, lateribus medio subrectis ; elytris 

 postice bene rotundatis, tenuiter 73itido-striatis, striis parce punc- 

 tulatis, interstitiis planis, subtilissime coriaceis opacis, subtilissime 

 obsolete punctulatis, carina laterali sat valida, usque ad callum 

 apicalem contiuuata ; tibiis anticis tridentatis, posticis apicem 

 versus gradatim latioribus ; corpore subtus nitido. 



S . Capite vertice cornu brevi conico ; thoracis disco paullo bigib- 

 boso, antice declivi. 



$ . Capite tuberculo minuto ; thorace aequali. 

 Long. 6-6| lin. 



Hah. Lake Ngami [Andersen). 



This species is very close to G. peleus, 01., and represents 

 that species in South-east Africa, The head has the anterior 



