120 Annals of the South African Museum. 



SECOND DIVISION. 



ANTERIOR MARGIN OF PROTHORAX NOT SPINOSE, LATERAL MARGINS 



WITH SPINES. 



A 2 . LATERAL MARGINS WITH A SHORT STALK SUPPORTING FOUR 



VERTICAL SPINES AND A DETACHED SPINE BEHIND THE STALK, 

 AND NOT CONNECTED WITH IT ; ELYTRA BLACK OR BRONZE. 



\ 



b-. Antennae long and very slender ; elytra with two dorsal rows 

 of long spines natahca. 



b 1 . Antennae long and slender ; elytra with three dorsal rows of 

 long spines vexatmx. 



c-. Antennae moderately long but not slender ; elytra with three 

 dorsal rows of short spines torulosa. 



c 1 . Antennae moderately long but not slender ; elytra with four 

 dorsal rows of short spines ovampoa. 



A 1 . LATERAL MARGINS WITH A SHORT STALK SUPPORTING FIVE OR 



SIX SPINES OR MORE, NO DETACHED SPINE BEHIND THE STALK. 



fcs. Lateral process consisting of six sub-vertical spines, the 

 posterior one of which is bifid. 



c 3 . The five or six basal joints of antennas black ; elytra with three 

 rows of dorsal spines vicinalis. 



c-. Basal joints of antennae not black ; elytra with five rows of 

 dorsal spines oniarramba, 



c'. All the joints of antennae of nearly the same width and 

 length; elytra with three rows of dorsal spines perplexa. 



6 4 . Lateral process, consisting of six sub-horizontal spines, the 

 posterior of which is bifid. 



c 2 . Antennae short, massive. 



d*. Elytra straw colour, spines on elytra black straminea. 



c 1 . Antennae long, slender. 



*. Elytra black decipiens. 



d 2 . Elytra reddish brown capcnsis. 



d'. Elytra dark brown on the dorsal part, with the lateral and 

 posterior margins flavescent delicata. 



fr. Lateral process consisting of five sub-vertical spines, the 

 posterior of which is bifid. 



Antennae long, slender ; elytra flavous with inf uscate spines . . eximia. 



