432 Transactions SoiitJt African Plnlosophical Society, [vol. xii. 



A'. Elytra with nine carinate costte on each side. 



B'. Intervals of elytra filled with transverse XJunctures. 



Clypeus of male deeply incised ; basal joint of posterior 



tarsi in the male similar to that of acanthotarsis . . . . e.riiniiis. 



B-. Intervals of elytra filled with round punctures. 



Clypeus of male deeply incised, and with the angles of the 

 incision sharply recurved ; inner spine of the basal joint of 

 hind tarsi half the length of the apical spur spinitarsis. 



Clypeus of male deeply incised though less deeply than in 

 spinitarsis, and with the angles of the incision less sharply 

 recurved ; inner spine of the basal joint of hind tarsi short conncxiia. 



B'. Clypeus not deeply emarginate ; intervals of el3-tra with a 

 double series of punctures divided by a fine raised line ; 

 basal joint of hind tarsi very short iiitnisus. 



Drepanocanthus acanthotarsis, n. spec. 



Black, very briefly pubescent, and with a narrow outer brownish 

 margin on the prothorax ; elytra and legs light testaceous brown ; 

 antennae and palpi fuscous ; clypeus broadly emarginate in front and 

 with the outer angles rounded, not very oblique laterally, genae 

 projecting nearly at right angles, but in a line with the sides of the 

 clypeus, the head is very closely punctulate and simple, without 

 any trace of transverse frontal groove ; prothorax nearly sub-parallel if 

 viewed from above, bv;t a little ampliate laterally in the anterior part, 

 base slightly hi- sinuate and marginate, upper part slightly convex, 

 covered with very closely set, round punctures which are briefly 

 setigerous, median part with a distinct longitudinal groove beginning 

 near the centre and reaching the base ; scutellum ogival, carinate 

 longitudinally in the middle ; elytra parallel for four-fifths of the 

 length, attenuate behind, convex, sub-declivous in the posterior part, 

 and having four carinate costae on each side, the suture itself is 

 carinate, and the intervals are filled with three series of round, 

 somewhat shallow punctures, but the median series of the first and 

 second intervals become sub-carinate at apex ; abdomen and pectus 

 very sparingly and briefly pubescent, metasternum finely grooved 

 longitudinally ; anterior tibiae of the male ampliato-laminate 

 inwardly from the apex to under the outer basal tooth ; basal joint 

 of intermediate tarsi a little curved at the base and twice as long as 

 the apical spur, basal joint of posterior tarsi very strongly curved 

 inwardly and continued in a diagonal inner spine reaching further 

 thaii the apical spur ; in the female these basal joints are normal, 



