234 Mr. G. Lewis on 



striae, Immcral and dorsal all complete ; pygidium convex and 

 semicircular behind ; prosternum bistriate and incised at the 

 base ; mcsosternum marginate, bisinuous, and produced in 

 the middle like that of Cyjdurus ; tibipe, anterior 8-9-dentate 

 and moderately dilated, intermediate and posterior more 

 dilated and widest near the tarsi, the tarsi are short and rather 

 robust, with two claws. 



Exosternus manicatus, sp. n. 



Ovalis, panim convexus, nitidus ; fronte plana, rugoso-punctata ; 

 elytris striis humeralibus et dorsalibus integris, auturali antice 

 cum o'' juncta ; prosterno bistriato ; mesosterno marginato, in 

 medio producto ; tibiis dilatatia. 



L, 3| mill. 



Oval, somewhat convex, nearly black and shining ; the 

 head, forehead plane, densely and rugosely punctured, and the 

 transverse stria is almost obliterated by the sculpture; the 

 thorax, marginal stria complete, surface clearly and densely 

 punctured except before the scutellum, where the points are 

 finer and less close ; the elytra, striae, inner and outer humeral 

 and 6 dorsal all complete, minutely crenulate and rather fine, 

 especially the fourth, fifth, and sutural, the sutural joins the 

 fifth at the base, the apical margin is strigose ; the pro- 

 pygidium is densely and somewhat rugosely punctured; the 

 pygidium is more finely and clearly, not rugosely punctured; 

 the prosternum, anterior lobe marginate in front, with punc- 

 tures rather closely set together, keel bistriate, striee faintly 

 sinuous in the middle, surface sparingly punctulate ; the 

 mesosternurn is marginate and bisinuous ; the metasternum 

 is sparingly and minutely punctured, transverse stria straight 

 and finely crenulate, and it joins the lateral strong and 

 oblique stria ; the first segment of the abdomen has a small 

 fovea on either side well within the margin ; the anterior 

 tibiae are 8-9-dentate and are somewhat dilated and are bowed 

 on the outer edge ; the intermediate and posterior tibiae are 

 more dilated, especially at the tarsal end. 



Ilab. ]\Ipudzi River, Manica, S. Africa {Gut/ A. K. 

 Marshall), December 1001. 



Exosternus ceratus^ sp. n. 



Ovalis, panim convexus, subseneus, nitidus ; fronte jdaua, rugoso- 

 punctata ; elytris striis omnibus integris ; mesosterno in medio 

 producto, marginato; tibiis dilatatis. 



L. 3;^ mill. 



Oval, rather convex, somewhat brassy and shining, with 



