5C2 MR. M. JACOBY ON THE [May 18, 



eye, followed by the usual oblique groove, the latter rather deep ; 

 clypeus impunctate, deflexed ; autennge extending to about the 

 middle of the elytra, black, the lower four joints fulvous below, 

 terminal joints not thickened, rather elongate ; thorax transverse, 

 rather con\ ex, the sides slightl)' rounded, the surface very obsoletely 

 and finely punctured, the punctures of somewhat elongate shape 

 but irregularly distributed, of a somewhat wrinkled appearance (in 

 some specimens almost obsolete), the base with a row of more 

 distinct punctures at the tiides ; elytra of subquadrate shape, black, 

 shining like the rest of the upper parts, the punctures round and 

 regular, the interstices impunctate, slightly costate at the sides ; 

 underside and legs nearly black; the metasteruum smooth; the 

 abdomen distinctly punctured ; the extreme base of the tibiae and 

 the tarsi more or less fulvous. 



Hah. Mashonaland {G. Marshall). Collection British Museum 

 and my own. 



Of still smaller size than C. gahani and of subquadrate shape 

 and nearly entirely black colour ; the punctuation of the thorax 

 is very variable, assuming in some specimens, probably of female 

 sex, a longitudinally strigose ap])earance, while in others there are 

 but few punctures visible. The species will, however, not be 

 difficult to distinguish on account of its colour and that of the 

 antennas and legs. 



CHiETOCNEMA SEMIEEGULATA, n. Sp. 



Oblong, dark greenish aeneous, the lower joints of the antennae 

 (the basal joint excepted) and the tarsi flavous ; head and thorax 

 "\ery closely and rather finely punctured ; elytra more strongly 

 punctate-striate, the subsutural rows irregularly so. 



Length 1 line. 



Head very broad, without frontal elevations, the upper portion 

 very finely and closely punctured and extremely minutely granulate, 

 the lateral grooves very obsolete, the clypeus separated from the 

 face by a transverse groove, more remotely and strongly punctured, 

 the space in front of the eyes also rather strongly and very closely 

 punctate ; antennae comparatively short, black, the second and the 

 following two joints flavous, the terminal five joints thickened, 

 slightly longer than broad ; thorax strongly transverse, of equal 

 width, the sides rather rounded, the surface rather convex, very 

 closely and finely punctured, especially so at the sides, the inter- 

 stices extremely finely granulate when seen under a strong lens, 

 the basal margin not accompanied bj' an impressed line but by a 

 row of stronger punctures ; a narrow nearly smooth space is 

 Adsible in front of the scutellum, the latter \erj small, transverse ; 

 elytra subcylindrical, pointed posteriorly, with rows of rather strong 

 punctures, not always regularly placed, those near the suture 

 forming two ^ ery closely approached irregular rows, the interstices 

 impunctate and shining, slightly costate at the sides and apex ; 

 femora and tibiae more or less dark aeneous, the latter more or less 

 obscure fulvous ; tarsi robust, flavous. 



