1897.] PHYTOPHAGOUS COLEOPTERA OF AFRICA. 561 



a narrow impressed line but without punctures ; scutellum twice 

 as broad as long ; elytra as broad as the thorax at the base, 

 elongate and pointed posteriorly, regularly impressed with round 

 but not deep punctures, the interstices finely granulate and flat ; 

 posterior femora extremely strongly incrassate, aeneous ; tibiae and 

 tarsi dark fulvous, the four posterior tibiae with a strong tooth. 



Hab. Mashonaland {G. Marshall). A single specimen in the 

 Museum collection. 



This is another species of elongate posteriorly-pointed shape, 

 distinguished by the long antennas and their colour, and by the 

 finely granulate and punctured thorax and similarly sculptured 

 elytra. C. longicornis, Jac, from Natal has the antennae still 

 much longer and of different colour and the elytral interstices 

 costate at the sides, 



Chjetocnema an^tennata, n. sp. 



Oblong, dark aeneous, lower joints of the antennae fulvous ; 

 thorax finely punctured, not granulate ; elytra closely punetate- 

 striate, the interstices longitudinally convex ; tibiae and tarsi 

 obscure dark fulvous. 



Length | line. 



Head broad, extremely finely but evenly and remotely punctured, 

 with a fine oblique groove at each side, frontal elevations absent ; 

 antennae not extending to the middle of the elytra, black, the lower 

 four joints fulvous, the basal joint black above, the second also 

 stained with black, scarcely shorter than the third and fourth 

 joints, terminal joints slightly thickened, the last one more elongate ; 

 thorax more than twice as broad as long, the sides nearly straight, 

 not narrowed towards the apex, the surface closely and finely 

 punctured, the punctures of equal size, the interstices shining, the 

 basal margin accompanied by a row of slightly larger punctures 

 but without impressed line ; scutellum broader than long ; elytra 

 with regular rows of deep and closely-placed punctm-es, those 

 near the suture more confused ; the interstices smooth and 

 impunctate, longitudinally costate at the side : underside and the 

 femora obscure aeneous ; breast and abdomen finely punctured ; 

 prosternum longitudinally sulcate. 



Hab. Mashonaland {G. Marshall). British Museum collection 

 and my own. 



A small species with comparatively short antennae and non- 

 granulate upper surface. The antennae in some specimens are 

 nearly entirely black, but generally the third and following two 

 joints are fulvous. 



Ch^tocnema subquadeata, n. sp. 



Ovately subquadrate, black ; head impunctate ; thorax extremely 

 finely and obsoletely punctured ; elytra strongly punctate-striate, 

 with smooth and shining interstices ; legs nearly black. 



Length | line. 



Head entirely impunctate, with a small depression above each 



