236 MR. M. JA.COBT ON PHYTOPHAGOUS COLEOPTEHA [Mar. 6, 



strongly convex, finely punetate-striate, dark metallic blue ; femora 

 minutely toothed. 



Length 5 millim. 



Of robust and strongly convex shape, the head broad, impune- 

 tate ; the epistome separated from the face, transverse ; labrum 

 and palpi fulvous, the eyes surrounded by a narrow sulcus, large, 

 distinctly emarginate ; antenna? slender, black, the lower six joints 

 fulvous, second joint thickened, as long as the third joint ; thorax 

 twice as broad as long, the sides nearly straight, the angles acute, 

 the posterior margin produced and rounded at the middle, the 

 surface closely and rather strongly punctured : scutellum fulvous ; 

 elytra subcylindrical, not depressed below the base, dark metallic 

 blue, finely punetate-striate, each elytron with ten rows of punc- 

 tures, the first sutural one short, the interstices flat, here and 

 there with a few minute punctures ; below and the legs black, 

 shining, the femora with a very small tooth ; the presternum 

 broad, longitudinally sulcate at the sides. 



/fab. Salisbury, Mashonaland, on mimosa (6% Marshall). 



Larger than R. cyanipennis Gerst. and JR. recticoUis Jac. ; the 

 thorax more strongly punctured and the underside and legs deep 

 black . 



Rhembastus DTJIFOBMIS, sp. n. 



Entirely pale fulvous, the apical two joints of the antenna? 

 fuscous ; thorax finely and remotely punctured : elytra very finely 

 punetate-striate ; femora unarmed. 



Length 5 millim. 



Head with a few fine punctures and a longitudinal groove al 

 the middle ; clypeus separated from the face by a transverse groove, 

 more closely punctured than the head, of transversely subquadrate 

 shape, its anterior margin emarginate ; antenna? extending to the 

 middle of the elytra, flavous, the apical two joints fuscous, the second 

 and the following four joints of equal length, the others slightly 

 thickened ; thorax twice as broad as long, the sides straight, the 

 posterior margin produced at the middle, oblique at the sides, the 

 anterior margin straight, the disc sparingly covered with fine 

 punctures ; scutellum oblong; elytra very convex, finely punetate- 

 striate, the punctures rather irregularly placed, nearly absent at 

 the apex, the suture raised at the posterior portion, preceded by 

 an impressed line ; below and the legs pale fulvous. 



J lab. Salisbury, Mashonaland, on mosasa (G. Marshall). 



Much larger than 11, Jlavidus Lefev., of uniform coloration, the 

 thorax much more finely and sparingly punctured, and the femora 

 unarmed. 



Rhembastus intebstitialis, sp. n. 



Fulvous, the apical joints of the antenna? black ; thorax trans- 

 verse, distinctly and subremotely punctured ; elytra strongly 

 punetate-striate, the interstices extremely minutely punctured. 



