93 Transactions South African Philosophical Society, [vol. xiii. 



But as the divisions to which Brenske has given a name will help 

 to identify the species, especially the male, I give them in the Key 

 and also a few new ones. 



Key to the Species. 



A 2 . Anterior tibiae bi-dentate. 



B 2 . Clypeus not incised laterally. 



C 5 . Antennal club of male 8-jointed ; of the female tri- 

 jointed, but the seventh and sixth of the pedicel 

 are half the length of those forming the club, fifth 

 and fourth aculeate (Euc amenta). 



Clypeus faintly carinate in the anterior part, inner 

 joint of club two-thirds the length of the following 

 joint castanea. 



Clypeus plainly carinate, inner joint of club half the 



length of the following joint transvaalensis. 



C 4 . Antennal club of male 7-jointed, of the female 



6-jointed (Camenta). 



a 3 . Clypeus not sinuate in front. 



Inner antennal club joint of male slightly 



shorter than the one following innocua. 



Inner club joint of male one-third shorter than 



the one following lydenburgiana. 



a 2 . Clypeus sinuate in front. 



Clypeus emarginate, inner antennal club joint 



as long as the one following salisburiana. 



a 1 . Clypeus deeply arcuately emarginate. 



Inner antennal club joint half the length of the 



one following capicola. 



C 3 . Antennal club of male 6-jointed, inner joint of the 

 club of the male not quite as long as the one fol- 

 lowing; of the female 5- jointed, joints as in Camenta (Hybocamenta). 



<x 2 . Fourth joint of pedicel laminate in the male. 



Clypeal keel very strong, arcuate ; body rufo- • 

 testaceous modesta. 



a 1 . Fourth joint of pedicel aculeate. 



b~. Antennal club of male moderately long. 



c 2 . Clypeus emarginate in front. 



Black or chestnut-brown, with the head inf uscate. 

 Inner joint of antennal club of male only 

 slightly shorter than the one following : 



Elytra not coriaceous nigrita. 



