African Phytophagous Coleoptera. 245 



Nerisms hicoloratus, sp. n. 



Black, head and thorax strongly punctured, clothed with thick 

 fulvous pubescence, elytra sculptured like the thorax, the disc clothed 

 with fulvous, the sides with white pubescence. 



Length 6 millim. 



Head clothed with long dark yellow pubescence, black, as well as 

 the labrum, antennas long and slender, black, terminal joints much 

 longer than broad, thorax transversely subquadrate, of the usual 

 shape, the sides finely serrate, the surface rather depressed, rugosely 

 punctured and of the same kind of pubescence as the head, scutellum 

 likewise covered with hairs, elytra sculptured like the thorax, the 

 yellow pubescence occupying the greater part of the disc, changing 

 from yellow to white at the sides and the apex, below and the breast 

 clothed with white hairs. 



Hab. Senegal. 



A typical Nerissus and well distinguished by the differ- 

 ently coloured pubescence of the upper surface, one a 

 bright dark yellow or pale fulvous, the other white. I 

 only know a single specimen contained in my collection. 



Lefivrea semistriata, sp. n. 



Below piceous, above testaceous, thorax transverse, minutely and 

 closely punctured, elytra closely and strongly semipunctate-striate 

 with three or four smooth longitudinal lines, legs fulvous. 



Length 3|-4 millim. 



Head broad, closely punctured at the anterior portion, the punctures 

 partly elongate, the vertex nearly impunctate, clypeus not separated, 

 its anterior edge slightly concave, labrum and mandibles fulvous, 

 antenna) scarcely extending to the middle of the elytra, fulvous, the 

 terminal six joints slightly widened, second joint about one half 

 shorter than the third, the latter and the following two joints equal ; 

 thorax twice as broad as long, slightly widened at the middle, the 

 sides rather strongly rounded, the angles in shape of a small tooth, 

 the surface very minutely and closely punctured, the punctures 

 shallow and of somewhat oblong shape, scutellum impunctate, elytra 

 much more strongly punctured than the thorax, the punctuation 

 arranged in closely approached rows but getting obsolete near the 

 apex and interrupted by four more or less distinct smooth longi- 

 tudinal lines which assume the shape of costoe near the sides ; below 

 piceous, legs fulvous, the tibise entire, the first joint of the posterior 

 tarsi as long as the following two joints, the third deeply and 



