1902.] Catalogue of the Colcoptera of South Africa. 777 



more elongated shape of the prothorax, the very narrowed elytra 

 (this, however, occurs m some, although few, species of Heterochehis), 

 and the much longer and sharply triangular scutellum. 

 The genus appears to be restricted to South Africa. 



Kejj to the Sj;ec/cs. 



A-. Anterior tibite bi-dentate outwardly. 



B. Clypeus straight, with the outer angles very sharp. 



C3. Hind claws double. 



a3. Prothorax densely hairy and having a longitudinal 

 impression in the posterior part. 



Elytra light testaceous edged with black, clothed 



with appressed light hairs : 



Pygidial part covered with thick, concolorous 

 lanuginosa scales, but having two patches of 



darker scales in the female niendax. 



Propygidium and pygidium each with two 



patches of darker brown scales in both sexes . . luridij^ennis. 



Pygidial scales of a uniform colour in both sexes ^jZaddus. 



a-. Prothorax hairy, broadly grooved from base to apex. 



Elytra testaceous, but somewhat reddish at base and 



apex, pygidium with not lanuginose scales . . . . canaliciilatun. 



a\ Prothorax hairy, not grooved in the central part. 



Elytra light testaceous, briefly hairy ; propygidium 



and pygidium covered with scales cijUmlncus. 



Elytra light testaceous, briefly hairy, narrower and 



more elongate than in the preceding species . . . . elongatus. 



B-. Clypeus with three sharp teeth. 



c^. Hind claw single, simple. 



Posterior tibiae of male very broadly dilated, compressed, 

 and with the carinate upper ridge strongly bi-sinuated 

 towards the apex and curved there inwardly axillaris. 



Posterior tibiae somewhat dilated, but simple modestus. 



c*. Hind claw single, cleft. 



Posterior tibiic dilated, compressed and lobate at the 



apex ohijjes. 



B'. Clypeus quadri-dentate. 



Body brick-red, elytra very briefly pubescent ; pygidium with 



round, somewhat large scales panxillus. 



