1902.] Catalogue of the Colcoptera of South Africa. 711 



Key to the Species. 



FiEST Division. 



Anterior tibiae tri-dentate outwardly (Heterochelus). 



A3. Clypeus straight at the tip, more or less sharply quadri-dentate. 

 B"". Elytra covered with contiguous scaks. 

 C=. Hind tibiae without an apical spur. 



D3. Clypeus with the two median teeth hardly distinct. 

 E=. Elytra distinctly costate. 



F=. Hind claws double, unequal. 



0.'*. Pygidium clothed with a velvety black tomen- 

 tum. 



Hind tibia of the male not grooved under- 

 neath, but with the lower edge serrate, and 

 the inner with a small tooth near the knee 

 (pi. xlii., fig. 29) vulpimis. 



Hind tibiae moderately grooved underneath, 

 but with both edges serrate and both strongly 

 dentate on each side of the knee (pi. xlii., fig. 

 44\ ftexlineatus. 



Hind femora with the inner claw of the 

 femora near the knee greatly developed ; hind 

 tibite broadly laminate, sharply bi-dentate 

 inwardly near the knee, and with the apical 

 mucro long and transverse (pi. xlii., fig. 37) natalensis. 



a3. Pygidium scaly but with two velvety black 

 patches. 



Hind tibiae somewhat grooved underneath, 

 but with the outer edges serrate and the inner 

 one slightly dentate near the knee (pi. xlii., 

 go'. 31) multidentatus . 



Hind tibite broadly and deeply scooped under- 

 neath near the base, and strongly bi-dentate 

 there, the inner spine being almost always 

 truncate, inner mucro very robust, upper 

 apical part produced into a distinct angular 

 process (pi. xlii., fig. 30) armipes. 



Hind tibiae scooped underneath in the base 

 only, triangularly dilated inwardly into a strong 

 tooth at the apex of the excavation, and 

 strongly serrate from there, upper apical part 

 strongly developed mimus. 



Hind tibiae not scooped underneath near the 

 base, but having there a distinctly truncate 

 inner tooth, upper apical angle normal . . concinnus. 



