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



mentum, deeply emarginate or almost incised in front ; maxillae 

 robust, inermous, mando setose, upper lobe triangular, densely 

 pubescent outwardly, last joint of palps sub-cylindrical, blunted at 

 tip, clypeus slightly longer than the head, strongly parabolic, 

 anterior margin bi- or quadri-dentate ; prothorax narrowed laterally 

 in the anterior part, straight thence to the base which is sinuate on 

 each side, and arcuate above the scutellum which is sharply 

 acuminate ; elytra massive, more or less distinctly bi-costate on 

 each side, narrower at apex than at base, and covering only one- 

 half of the propygidium; pygidium sub-vertical; mesosternal process 

 projecting beyond the coxae in a moderately elongate triangular 

 arcuate process ; legs robust, anterior tibiae strongly tri-dentate 

 outwardly, intermediate ones with two sharp teeth, basal joint of 

 hind tarsi not angular laterally in the male the antennal club of 

 which is nearly as long as the whole pedicel. 



The genus is restricted to the South-Western part of the Cape 

 Colony. 



The two massive species included in this genus belong plainly, in 

 spite of the conformation of the basal joint of the hind tarsi of the 

 male, to the Goliathites. 



Westerman states that he has found 0. pubescens under dry cow- 

 dung. Both 0. pubescens and 0. hispida fly round such places 

 where cattle congregate, very much in the manner of a Scarabceus 

 searching its provender, but they have not been detected, to my 

 knowledge, in either the fresh or the dry cow-dung. 



Key to the Species. 



Clypeus sharply quadri-dentate in front ; body densely hairy above 



and underneath hispida. 



Clypeus bi-dentate in front, briefly pubescent above, and densely 

 underneath pubescens. 



Odontorrhina hispida, Oliv., 



Ent., i., 6, p. 90, pi. 12, fig. 113; 

 Gor. and Perch., Mon., p. 260, pi. 49, fig. 5. 



hirsuta, Thunb., Mem. Ac. Petr., vi., 1818, p. 412. 

 pubescens, var., Illig. Mag., vi., p. 303. 



Bronze, moderately shiny, clothed on the whole upper side with a 

 long light fulvous pubescence, prothorax with a somewhat wide 

 white lateral margin stopping at the base ; clypeus parabolic 

 laterally, sharply angular at apex, and with the narrowed anterior 

 margin produced into four horizontal teeth the two median ones of 



