174 Mr, G. Lewis on 



and parallel to each other for more than half their length 

 and then at the base become widely divergent, anteriorly they 

 are obliterated by the surface-sculpture ; the mesosternum has 

 no apparent marginal striae, but there is a somewhat narrowly 

 arched stria occupying the median area ; the metasternum 

 widens out very much at the base ; the first segment of the 

 abdomen is margined at the sides and densely sculptured ; the 

 anterior tibige have 10 or 12 long pale denticles on the 

 outer edge, intermediate and posterior tibige have many pale 

 spinosities. 



Bah. Cape of Good Hope. 



Pelorurus costipennisj sp. n. 



Ovalis, parum convexus, obscure 93neo-niger, subnitidus ; fronte 

 punctata, in medio concava ; pronoto punctato, stria mai'ginali 

 integra ; elytris miilticostatis, intervallis carinulatis ; pygidio 

 apice carinato : prosterno margine antice bistriato ; antennis 

 pedibusque obscure brunneis. 



L. 3| mill. 



Oval, a little convex above, especially on the dorsum, black 

 with a faint aeneous tinge, feebly shining ; the head somewhat 

 closely punctate, concave in the middle; the thorax, stria 

 complete and fine behind the head, punctured, punctures 

 fine and not closely set before the scutellum, somewhat 

 close and large at the sides, and those behind the anterior 

 angle are sometimes confluent ; the elytra, the costa which 

 represent the 1-5 striaj are markedly elevated, especially the 

 first, second, and third, the sixth is indistinguishable amongst 

 four caringe next to the suture, in each of the intervals 

 between the five costae are two stria with a carina between 

 them, the striae have somewhat irregular edges, the four 

 sutural carinse have a few punctures along their edges, the 

 elytral rim resembles the first costa ; the propygidium and 

 pygidium are somewhat closely punctate, the latter is apically 

 carinate ; the prosternum, anterior edge of the anterior lobe 

 has two deep marginal striae with somewhat crenulate edges, 

 surface with rather large scattered points, but these do not 

 extend to the base of the keel, keel bistriate, striae feebly 

 sinuous in the middle and divergent at and near the base ; 

 the metasternum has a fine marginal crenulate stria and a 

 transverse crenulate stria slightly bowed ; the metasternum 

 has a band of scattered punctures along its base and similar 

 points behind the anterior angles, disk and anterior median 

 area with microscopic points. 



This curious species is one of Mr. Guy A. K. Marshall's 



