1907.] Catalogue of the Goleoptera of South Africa. 469 



Length 13-14 mm. ; width 7-8 mm. 



Hab. ? Transvaal (Lydenburg) ; Southern Ehodesia (Manica, 

 Enkeldoorn, Sebakwe, Salisbury) ; Mozambique (Beira). 



Gen. POLYSTALACTICA, Kraatz, 



Deutsch. Entom. Zeitsch., 1882, p. 69. 

 P scurf otephr&a, Kraatz, loc. cit., p. 70. 



Mentum long, sub-parallel, broadly and deeply emarginate in 

 front ; palpi of the normal shape, inner and upper lobe of maxillae 

 very distinctly dentate, but the teeth are not hooked ; clypeus 

 slightly attenuate towards the apex, emarginate there ; prothorax 

 sub-arcuate at the base, nearly straight above the scutellum which is 

 sharply acuminate and hardly sunken, there are two deep impres- 

 sions along the base ; elytra moderately deeply sinuate laterally, 

 each with a sharply tectiform entire discoidal costa, and an inner one 

 reaching hardly the median part, the suture is highly carinate in the 

 posterior part and sharply angular at apex ; pygidium one-fourth 

 broader than long, arcuate, rounded at apex ; sternal process con- 

 stricted between the coxae and expanding into a very short trans- 

 versely truncate process projecting very slightly only ; anterior 

 tibiae bi-dentate in both sexes but with a plain sinuation above the 

 second tooth in the female ; tarsi somewhat short, joints not angular 

 outwardly and very little inwardly in the ? . 



The three species known to me are speckled with white dots on 

 the prothorax and the elytra. The characters assigned by Kraatz to 

 his genus, Pscudotephraa, are of too slight importance to be taken 

 into account ; moreover they are not quite correct. 



Key to the Species. 



A 2 . Discoidal costa of elytra very sharp, body shiny. 



B 2 . Body not much attenuated behind (Pseudotephr^a). 



Prothorax and elytra with very numerous white 



dots furfurosa. 



B\ Body plainly attenuated behind (Polystalactica). 



Prothorax with eight somewhat large yellowish- 

 white macules ; elytra also with macules, body 

 remotely villose on upper side mashona. 



A 1 . Discoidal costa of elytra bluntly tectiform, body opaque. 



Prothorax and elytra speckled with numerous white 



dots sansibarica. 



