1897.] of the Coleoptera of South Africa. 69 



depressed and more pubescent ; the head is larger and natter and 

 the sulci more slender and arcuate ; the intermediate joints of the 

 antennae are also more transverse and depressed than in the 

 other two species. B. variabilis and B. calcarata are very similar ; 

 both have the sides of the head linear and oblique, the sulci deep, 

 broad, oblique, not arcuate ; the difference between the two is found 

 in the antennae. In B, variabilis they are rather elongate and 

 slender, not compact, each joint having the appearance of being 

 pedunculate, the ninth one is globose, and the tenth slightly trans- 

 verse, whilst in B. calcarata they are shorter, stouter, and more 

 compact, being rather moniliform, and the ninth and tenth joints 

 more transverse ; in B. variabilis the transverse impression at the 

 base of the first dorsal segment is very feeble, but extends in width 

 to more than half the segment ; in B. calcarata the same impression 

 is narrower than a third of the width, but it is better defined, as it 

 consists of two foveas united by a transverse depression. 



B. calcarata seems to be rare, whilst B. incerta and B. variabilis 

 are very abundant. 



Kaffrayia armata, 

 Plate XVI., fig. 2. 



Oblong, rather convex, ferruginous, brown orpiceous ; covered with 

 a greyish pubescence ; antennae and legs rufous ; head broader than 

 long, attenuate in the anterior part, sides oblique, between the eyes, 

 which are not large, two foveas, sulci deep, oblique, convex in front, 

 antennal tubercles sulcate traversely, vertex with a long carina ; 

 antennae little elongate, second joint briefly ovate, third very briefly 

 triangular, fourth to eighth transverse, briefly decreasing, ninth sub- 

 globose, tenth larger, transverse, eleventh subglobose, nearly cone- 

 shaped and acuminate at tip ; prothorax transverso-cordate, broader 

 than the head, longitudinal sulcus shallow, lateral foveas slightly 

 elongate, transverse sulcus deep with the median part angulate ; elytra 

 moderately elongate, slightly attenuate at base, humeral angles 

 oblique, obtusely dentate, dorsal sulcus disappearing before or at the 

 median part ; first dorsal segment of the abdomen larger than the 

 others, and more or less impressed transversely at base. Legs 

 robust. 



Male : Head with two transverse excavations underneath, the 

 anterior one larger and deeper than the posterior one, which is divided 

 by a longitudinal carina ; metasternum and also the last ventral 

 segment broadly impressed ; intermediate trochanters slightly 

 mucronate inwardly at base. 



Female : Metasternum convex, head simple underneath. Length 

 1-30-1-50 mm. 



