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



This genus seems restricted to Africa. The South African species 

 haunt flowers. In Southern Ehodesia " they seem to confine them- 

 selves principally to Protect, and some of the large Compositae " 

 (G. A. K. Marshall). But the silky scales covering part of the body 

 of several species would seem to imply a myrmecobious stage during 

 a part of their existence. 



Key to the Species. 



A 2 . Anterior tibiss uni-dentate in both sexes. 



B 2 . Upper side black. 



Body clothed with contiguous yellow silky scales. . .. undatus. 



Body with scattered greyish scales, and with three 

 small white macules and one median spot on each 

 elytron intrusus. 



Sides of prothorax densely scaly ; elytra almost glab- 

 rous, each with three large white patches and one 

 median spot margaritiferus. 



B 1 . Elytra orange-coloured, glabrous ; elytra orange- 

 coloured with a broad irregular black sutural mark., hilaris. 



A 1 . Anterior tibiae bi-dentate in both sexes. 



B 2 . Clypeus plainly dentate in the anterior margin. 



Prothorax with a lateral white margin ; elytra also 

 marginated with white and with several white macules 

 on each side leucostictus. 



B 1 . Clypeus simple. 



Prothorax and elytra with a fulvous margin ; the latter 



with two orange-coloured patches on each side . . . . rubronotatits. 



Cymophorus undatus, Kirby, 



Zool. Journ., hi., p. 153, pi. v., fig. 6; 



Westw., Thesaur. Entomol., p. 19, pi. viii., fig. 3 ( ? ). 



Piceous black, completely covered on the upper and lower sides 

 with appressed somewhat golden scales ; head closely punctate ; 

 antennal club reddish ; prothorax not quite straight laterally in the 

 posterior part owing to a slight sinuation, but the base is nearly 

 straight, the surface is covered with sub-contiguous round punctures, 

 all setigerous, and has no traces of strigillation; the scutellum and 

 elytra are similarly punctured and clothed, the suture is sharply 

 raised in the posterior part and highly carinate at apex, the space 

 between it and the dorsal costa encloses two geminate strioles ; 



