1900.] Catalofjiic of the Goleoptera of South Africa. 479 



recorded as having l)een met with outside the South African 

 Hmit, and another (B. pallens) from Guinea is recorded by Klug as. 

 occurring also at Tete (Mozambique). 



Key to the Species. 



AS. Anterior tibise five-dentate, 



Clypeal carina transverse, slightly dentate on each side, 

 angles of clypeus recurved, but not dentate ; basal part of 

 prothorax with two long lateral teeth, and three shorter 

 median ones in the male ; female with a median transverse 

 ridge xmnza. 



Median part of the head with a short, transverse, highly 

 raised non-denticulate carina ; prothorax with a median, 

 moderately deep excavation distinctly bi-dentate at tip, and 

 sub-angular laterally damarimim. 



Median part of the head with a tri-dentate, transverse carina, 

 prothorax with a median, moderately deep excavation 

 neither dentate at tip nor sub-angular laterally . . . . fcn'tuitum. 



k^. Anterior tibies six-dentate. 



B"*. Prothorax with three impressions in the anterior part. 



ci^. Upper part of impression distinctly sharply bi-tuberculate. 



Cephalic carina short, more or less conspicuously bi- 

 dentate, sub-apical, prothoracic excavation sloping . . spurium. 



Cephalic carina in a line with the basal angles of clypeus, 



hardly bi-dentate ; prothoracic excavation sub-vertical . . indiihium.. 



a\ Upper part of impression callose but not tuberculate. 



Cephalic tubercle placed close to the apex in the male, 



bifid and median in the female capense. 



B^. Prothorax with a triangular median impression. 



Labrum distinctly carinate transversely ; head with three 

 conspicuous teeth disposed transversely caffrum. 



Labrum not transversely carinate ; head with three teeth 



disposed transversely vacivtim. 



Labrum not carinate transversely ; head with a sub-apical 



median tubercle inclioatum. 



B^. Prothorax with a short, basal, retuse impression. 



Labrum slightly carinate transversely ; head with a trans- 

 verse carina, very distinctly tri-dentate, impression very 

 small, quite basal, slightly bi-dentate at tip plausihile^ 



