1904.] Catalogue of the Coleoptera of South Africa. 109 



about half the length, and thence strongly arcuate towards the apex, 

 the anterior margin is straight, strongly reflexed, and the anterior 

 part is somewhat hollowed, very little or not at all impunctate, and 

 the deeply punctate posterior part is, with one exception (P. calva) r 

 clothed with long erect hairs, it is separated from the head by an 

 arcuate suture reaching the anterior angles of the eyes which are 

 incised by a narrow canthus, but in one species (P. bohemani) there 

 is, in addition to the suture, a plain median keel ; antennae 10-jointed 

 in the male, the only sex known, the long club is 7-jointed ; pro- 

 thorax somewhat short, more attenuated laterally in the anterior 

 than in the posterior part, and with both the anterior and posterior 

 angles obtuse, not much convex, and fringed laterally with long 

 hairs ; elytra slightly ampliated laterally in the posterior part, some- 

 what depressed and covering the propygidium, faintly costulate and 

 fringed laterally with long hairs ; pygidium convex, drawn inwards ; 

 abdominal segments seemingly free or partly free ; legs and claws of 

 Camenta, from which this genus differs mainly by the hollowed 

 clypeus, the drawn-in pygidium, the plainly more free abdominal 

 segments, and the rounded anterior angles of the prothorax. 



Key to the Species. 



A. Third joint of the pedicel of antennas shorter than the two basal 

 ones taken together. 



B 2 . Third joint of pedicel inwardly triangular. 



a 2 . Clypeus with a median transverse keel. 



Body testaceous-red bohemani. 



a 1 . Clypeus without a median keel. 



Upper part of body chestnut-brown conspicua. 



Body testaceous, prothorax with a median, and elytra 



with a sutural broad black band suturalis. 



B 1 . Third joint of pedicel sharply aculeate at the base. 



Head black, prothorax red; elytra straw-colour. ... . . lydenburgiana.. 



A. Third joint of the pedicel of antennas as long as the two basal 

 ones taken together. 



B. Third joint of pedicel slightly angular inwardly in the 

 middle. 



Upper part of clypeus densely hairy ; inner joint of antennal 



club as long as the one following verticalis. 



Upper part of clypeus not hairy ; inner joint of antennal 



club shorter than the one following calva . 



