1904.] Catalogue of the Coleoptera of South Africa. 289 



the head, the clypeus of which is sinuate in the centre, and some- 

 what short ; the short prothorax is serrulate laterally and the basal 

 angles project longitudinally beyond the line of the base ; scutellum 

 scaly; elytra slightly broader than the prothorax at the base, slightly 

 sinuate past the humeral part and strongly ampliated thence to the 

 posterior part, the suture is costate, and there are faint traces of two 

 or three costules, both the humeral and postical calluses are very 

 distinct and the surface is deeply punctate, the punctures being 

 only moderately closely set and filled each with a greyish-white 

 scale ; propygidium extremely closely punctulate and very briefly 

 pubescent pygidium broader than long, covered with contiguous 

 sub-flavescent scales ; abdomen strongly bulging out laterally and 

 very convex, covered also with contiguous small white scales, pectus 

 and episterna clothed with appressed thick squamose hairs, which 

 in the former are mingled with a sub-fulvescent pubescence ; legs 

 scaly ; anterior tibiae tri-dentate. 



I have not ascertained by dissection the sex of the only example 

 known to me, but I am satisfied, in spite of the shape of the antennal 

 club, that it is a 3 , owing to the shape of the spurs of the hind 

 tarsi. 



Length 27 mm. ; width 141 mm. 



Neighbourhood of Zambesi Eiver (Ikuta), communicated by Herr 

 Brenske. 



Group DIPLOTAXIDES. 



Labrum transverse or arcuate, not incised ; anterior coxae strongly 

 oblique and vertical at apex ; clypeus either very short in both sexes 

 or strongly prolonged and even bi-lobate in the male. 



The shape of the labrum and of the anterior coxae characterise 

 this group which is represented in South Africa by five species, 

 belonging to one or possibly two genera, the males of which have 

 the two or three basal tarsal joints dilated and hairy underneath ; 

 this dilatation can also be traced in the female of some species. 



Gen. APOGONIA, Kirby, 

 Trans. Lin. Soc, xii., 1818, p. 401. 

 Catagonia, Kolbe, Entomol. Nachr., vol. xxv., 1899, p. 57. 

 Ceratogonia, Kolbe, loc. cit., p. 45. 



Mentum quadrate, plane, fused with the ligular part which is 

 truncate at the tip, but the suture is visible ; last joint of labial palpi 

 cylindrical but somewhat acuminate at the apex; maxillae robust, 

 swollen at the base and ending in four strong arcuate teeth, without 



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