1898.] of the Coleoptera of South Africa. 401 



brown and the antennae entirely piceous. The last joint of the 

 antennas in the male is also variable ; it may be oblong, with a sulci- 

 form fovea or ovate and acuminate, with a much shorter fovea. 

 Generally the last joint of the antennae is shorter when the body is 

 of a smaller size. Length 1*40-2 -00 mm. 



This species is recorded now from Bechuanaland (Vryburg), 

 Mashunaland (Salisbury), Natal, Cape Colony (Port Elizabeth and 

 Uitenhage). 



Keichenbachia rivularis, Rattray, 

 Catal., p. 129. 



When I first described this species I had only one male specimen. 

 I have received it since in large numbers from the Eev. O'Neil, 

 from Uitenhage, and I am able to complete the description. It varies 

 in colour, from rufous to dark chestnut ; the carinules on the first 

 dorsal segment of the abdomen are more or less distant, including 

 from one-fifth to more than one-fourth of the disk. In the female the 

 antennae are somewhat shorter with all the joints a little shorter, and 

 the eighth is decidedly transverse, the eleventh is smaller ; the tibiae 

 have no spurs, and the tubercle at the base of the metasternum is 

 smaller. Length 1-40-1*80 mm. 



BRYAXONOMA, nov. gen. 



Body stout, convex, attenuate in front ; head, prothorax, and 

 elytra entirely devoid of any fovea, sulcus, or stria ; antennae and 

 palpi as in Beichenbachia ; head beneath, with a strong longitudinal 

 carina and somewhat depressed in the sides, in front of the eyes ; 

 elytra short, attenuate towards the base, no shoulders ; abdomen 

 large, margin rather narrow ; first dorsal segment larger than the 

 elytra, and without any impression ; metasternum short and trans- 

 verse ; posterior coxae very distant ; second ventral segment very 

 large ; tarsi rather elongate, second joint sub-conical, third cylindrical 

 and more slender ; a very minute single claw. 



This new genus, which belongs to the tribe of Bryaxini, differs 

 much from Beichenbachia in general appearance, which is due to the 

 shortness of the elytra, the very large dorsal segment of the abdomen, 

 and the total absence of foveae, sulcus, or stria. 



