288 TrcDisactions Soutli African Philosophical Societij. [vol. xii. 



C-. Strias of elytra deeply punctate. 

 D=. Head without frontal carina. 



Prothorax sloping for two-thirds of the length, strongly 

 impressed on each side of the carinate ridge which is 

 deeply emarginate but not angular in the centre . . . . optata. 



Prothorax retuse in front and bi-tuberculate in the 



centre of the declivity niticUpennif; 



B'. Prothorax not excavate nor retuse in front. 



Clypeal teeth very short ; prothorax simple, equally convex ; 



intervals of elytra plane, punctate obtusicornis. 



D'. Head with a frontal tubercle. 



Clypeal horns very long and bending upwards ; pro- 

 thorax and intervals of elytra smooth barratti. 



A'. Elytra hardly sinuate laterally. 



C. Strife of elytra geminato-striate, intervals tuberculate. 



Clypeal teeth triangular, recurved ; elytra short, very con- 

 vex, tubercles of the intervals somewhat closely set . . . . nana. 



Clypeal horns long and straight, or if triangular, nearly 

 straight, intervals of elytra with elongate, carinate 

 tubercles armata. 



Clypeal horns long, sharply triangular, straight ; intervals 

 of elytra with a series of elongate granules obliterated on 

 the two juxta-sutural ones imitativa. 



COPTOEHINA KLUGI, Hope, 



Trans. Zool. Soc, i., 1830, p. 96. 



Black, sub-opaque, club of antenuce brownish, joints piceous ; head 

 covered with very closely set, somewhat rugose, nearly confluent 

 punctures, gense diagonal from the base to half of the length, and 

 straight from there to the junction with the clypeus where it is 

 slightly angulate, they are marginate like the clypeus which is very 

 broadly and deeply incised, with the angles of the emargination pro- 

 duced into two long, triangular teeth carinate longitudinally in the 

 middle on the upper side, and strongly recurved, these teeth vary 

 in size, but are as a rule less than half the length of the head, and 

 the space between the two carinas is deeply scooped, in the frontal 

 part there is a transverse impressed line obliterated in the middle ; 

 prothorax strongly sloping in front for about three-fourths of the 

 width, anterior angles somewhat blunt, outer margin very slightly 

 sinuate between the anterior angle and the median rounded part, at 



