800 Transactions South African Philosopliical Society, [vol. xii. 



In shape the insects included in this genus greatly resemble small 

 species of Oiyiocratcs, but thej* are at once distinguished by the shape 

 of the outer teeth of the anterior tibiae which are not connate and not 

 set at right angles with the tibige. 



Key to the Species. 

 A". Elytra with a broad transverse impression near the humeral callus. 



B*. Clypeus diagonal laterally from the middle to the sharp angle 

 of the apex and deeply emarginate. 



C. Elytra with a reddish broad basal band. 



Prothorax very opaque on the discoidal part and closely 

 punctured (ixillaria. 



Prothorax shining, impunctate on the discoidal part . . . . i^enusta. 



B'. Clypeus not attenuate laterally and with the angles rounded. 

 C. Elytra without a reddish basal band. 



Prothorax opaque, finely aciculate (ie7itili>\ 



A'. Elytra with only the normal impression along the humeral callus. 



Clypeus attenuate laterally, outer angles very sharp, apex deeply 

 emarginate. 



Prothorax and elytra covered with dense greyish scales elegaiis. 



KuBOUSA AXILLARIS, Burm. 



Platychelus axillaris, Handb. d. Entomol., iv., 1, p. 143. 



Male : Black, shining, with the elytra transversely rufescent in the 

 median part, along the suture of the elytra are a few sparse, whitish 

 scales, the vertical pygidium is covered with round, nearly con- 

 tiguous, flavescent scales, and the propygidium and the edges of the 

 abdominal segments have elongated, somewhat appressed, hair-like, 

 white scales ; head scabrose, pubescent, clypeus long, slightly angular 

 laterally at base, somewhat obliquely narrowed towards the tip which 

 is emarginate with the angles dentate and reflexed ; pi'othorax obliquely 

 attenuate laterally from about the middle to the anterior part, sinuate 

 from the median part to the base, convex, shining and with some 

 remotely scattered punctures, fringed with somewhat stiff ciliate 

 hairs along the anterior and lateral margins, and having along the 

 base and also the posterior part of the lateral margin a very narrow 

 band of white, elongate scales which ai'e, however, rubbed off oftener 

 than not ; scutellum long, sharply triangular, elytra plane but having 

 on each side a strongly arcuate, transverse impression near the base, 

 shining, irregularly punctured and having in the puncture some white. 



