178 Transactions South African Philosophical Society, [vol. xii. 



a'^. Protliorax not excavate ; elytra flavous, with a black 

 suture. 



Prothorax impunctate, except for a few punctures 



along the anterior part pallidipennis. 



Prothorax covered all over with round, not closely 



set punctures semiflavus. 



a~. Prothorax not excavate ; elytra testaceous, and with 

 broad transverse fuscous band. 



Clypeus strongly bi-sinuate laterally, and broadly and 



deeply emarginate at tip signatus. 



a^. Prothorax not excavate ; elytra bronze or bronze 

 black. 



Prothorax closely punctate ; intervals of elytra deeply 

 punctate, coriaceous ; body bronze, moderately 

 shining inodestus. 



Prothorax closely punctate ; intervals of elytra with 

 a double series of scabrose small punctures ; body 

 violaceous black inconspicuiis. 



Prothorax granulose ; intervals of elytra with two 

 series of granules or scabrose punctures ; body black, 

 opaque indigus. 



C3. Head without horns or tubercles, but having one 

 frontal carina, 

 a^. Clypeus very deeply incised ; body convex. 



Clypeus very deeply incised ; prothorax very closely 

 granose, impressed in the apical anterior part ; elytra 

 testaceous and with a broad, median basal fuscous 

 lacerate patch, or entirely fuscous black laceratus. 



Clypeus not very deeply incised ; prothorax closely 

 granose, deeply sulcata in the posterior part ; elytra 

 violaceous asimilis. 



Clypeus very deeply incised ; prothorax deeply 



punctate ; elytra black coptorhinodcs. 



a^. Clypeus not very deeply incised ; body depressed. 



Clypeus deeply emarginate with the angles a little 

 refiexed ; prothorax with a distinct longitudinal im- 

 pressed line in the posterior part ; intervals of elytra 

 somewhat convex, punctulate vicarius. 



Clypeus slightly emarginate ; prothorax without a 

 longitudinal posterior impressed line ; intervals of 

 elytra plane, punctulate glahcr. 



C-. Head without horns, tubercles, or transverse carinte. 



