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



POLYSTALACTICA MASHONA, n. Sp. 



Black, shiny, upper and under side with moderately long, remote 

 navescent villose hairs ; clypeus somewhat deeply incised in front, 

 shagreened, frontal part deeply and closely sub-foveolate punctate ; 

 prothorax narrower laterally behind than in P. furfurosa and P. 

 sansibarica, the epimera are more bulging on that account, it is 

 covered with deep round punctures separated by an interval barely 

 equal to their own diameter in the median and posterior part 

 of the disk, but nearly contiguous in front, it is marked with eight 

 moderately large navescent white spots disposed transversely 

 2 — 4 — 2, and the base is straight above the scutellum which is 

 vaguely punctate along the base ; the elytra are bulging laterally 

 at the humeral part and they are moderately attenuate behind, the 

 discoidal costa is sharp, the punctures in the intervals moderately 

 deep, and there are numerous navescent white macules larger than 

 the white dots of P. furfurosa and P. sansibarica, numbering six- 

 teen on each side in my examples, there are series of remote hairs 

 on the dorsal part, and the raised suture is not sharply acuminate ; 

 pygidium rufescent, sparsely dotted with white ; under side not 

 maculated with white, and moderately densely pubescent ; anterior 

 tibiae with two somewhat robust outer teeth. 



I have seen only a female example of this species, which differs 

 somewhat from the true Polystalactica in the shape of the outer 

 teeth of the anterior tibiae and the not sharply acuminate suture. 



Length 10 mm. ; width 5J mm. 



Hab. Southern Ehodesia (Salisbury). 



Polystalactica furfurosa, Burm., 



Plate XLVIL, fig. 34. 

 Handb. d. Entomol., v., 1847, p. 558. 



Black, shiny, upper side glabrous, antennae chestnut-brown, 

 clypeus more closely punctate than on the frontal part where the 

 punctures are also deeper, and which bears four white dots, occa- 

 sionally obliterated ; prothorax covered with moderately remote 

 deep, round punctures in the discoidal part, with the sides sub- 

 foveate, and having five rows of more or less rounded white dots, 

 the three median rows are regular, but not so the two lateral ones, 

 where the spots sometimes commingle ; scutellum punctate along 

 the base and with a lateral row of few punctures ; elytra sinuate 

 laterally but otherwise sub-parallel with the suture, sharply raised 

 in the posterior part and sharply acuminate, the discoidal and the 

 inner costae are sharp, and there is a third, plainly visible in the 



