372 MR. M. JACOBT ON THE [Mar. 7, 



Plattxantha xitingstoni, sp. n. 



Flavous, the head purplish, impimctate ; thorax transversely 

 sulcate, iinpunctate ; elytra metallic blue, extremely minutely 

 punctured. 



Alas. Antennfe with the intermediate joints curved. 



Length 7 millim. 



Head impunctate, metallic purplish, frontal elevations broad, 

 transvei'se ; clypeus acutely raised ; palpi swollen, flavous, as well 

 as the labrum ; antennae long and slender, obscure flavous, the 

 second joint very short, moniliform, the third and the following 

 joints very elongate, the fifth, sixth, and seventh curved, the 

 terminal three joints slender and thinner; thorax twice as broad 

 as long, the sides straight at the base, slightly rounded anteriorly, 

 anterior angles slightly produced, posterior acute, the surface trans- 

 versely sulcate, the sulcus not extending to the sides, entirely 

 impunctate, fulvous ; scutellum broad, fulvous ; elytra with a 

 slight sub-basal depression, extremely minutely punctured, metallic 

 dark blue, their epipleurse broad and continued ; below and the legs 

 flavous. 



Bab. Niger-Benue Expedition. 



This species differs in its mode of coloration from any of its 

 African allies. I received a single specimen from Dr. Staudinger 

 and Herr Bang-Haas. 



MONOLEPTA MALTERNElSrSIS, Sp. n. 



Testaceous, the apical joint of the antennae dark ; head and 

 thorax finely punctured; elytra punctured like the thorax, the 

 puuctation very close ; a spot on the shoulders and another near 

 the apex piceous. 



Length 4 millim. 



Head with a few fine punctures, obscure testaceous ; the eyes 

 very large ; labrum piceous ; antennae extending below the middle 

 of the elytra, testaceous, the apical joint more or less piceous, 

 the second and third joints small, equal ; thorax about one-half 

 broader than long, the sides nearly straight, the posterior margin 

 straight, the surface very finely and closely punctured, especially 

 so anteriorly ; scutellum piceous ; elytra more strongly punctured 

 than the thorax, the punctation consisting of very small and 

 larger punctures, the interstices very finely rugose, a small humeral 

 and a larger subapical spot piceous ; below and the legs testaceous ; 

 elytra] epipleurae indistinct below the middle; anterior coxal 

 cavities closed ; metatarsus of the posterior legs elongate. 



Hub. Malvern, Natal (G. Marshall). 



The number and position of the elytral spots, the colour of the 

 antennae, that of the elytra and of the underside separate this 

 species from the unicolorous variety of M. 8-maculata Jac. and 

 M. citnnella Jac. 



MoNOLOPTA ESTCouKTiAifA, sp. u. (Plate XXI. fig. 11.) 

 Flavous, the vertex of the head and the intermediate joints of 



