848 Transactions SoutJi African Philosophical Society, [vol. xii. 



apex ; pygidium sloping fonvards ; anterior tibiae tri-dentate, but 

 the basal tooth is very short and the other two are very slanting ; 

 claws of the front and intermediate tarsi double, unequal, the stouter 

 one of the fore legs cleft, hind claw single, simple. 



Intermediate in shape between some species of JSIonochelus and 

 Idiityiua. Its main distinctive character is the very long, flabellate 

 club of the antennae. 



TH.A.BINA SIMPLEX, U. SpCC. 



Male : Black, head rugose and having some very short, sub- 

 flavescent hairs in the frontal part, clypeus reflexed all round ; 

 prothorax plainly gx'ooved longitudinally in the centre, ampliated 

 and rounded laterally in the middle, broadly and deeply punctured, 

 each puncture bearing a long, somewhat fulvous bristle, and in the 

 furrow as well as along the outer mai-gin are some whitish, appressed 

 squamose hairs ; elytra somewhat bi-costulate on each side and 

 having along the suture a broad band of partly erect squamose white 

 hairs, and a discoidal one not quite as broad as the juxta-sutural, and 

 sometimes reduced to a faint line, they are deeply but not closely 

 punctured, each puncture bearing a long bristle ; pygidial part and 

 abdomen clothed with appressed greyish squamose hairs, which are 

 not dense on the pygidium ; legs bristly and pubescent ; hind ones 

 not especially robust, intermediate and hind tibiae with an apical 

 spur, fifth joint of the hind tarsi nearly as long as the three preceding 

 taken together and bi-dentate underneath. 



Length 5 mm. ; width 2| mm. 



Hah. Transvaal (Pretoria, Potchefstroom). 



Gen. GYMNOLOMA, Burm., 

 Handb. d. Entomol., iv., 1, p. 161. 

 Mentum ampliate near the base, attenuate laterally towards the 

 apex, not deeply constricted near it, arcuately emarginate there, and 

 with the angles mostly sharply dentate and slightly fasciculate, lobe of 

 maxillae long, robust, armed with six shai-p teeth curved inwardly ; 

 apical joint of labial and maxillary palpi sub-fusiform ; ch-peus 

 sharply triangular (G. atoviaria), truncate and simple {G. strigosa), 

 or truncate and dentate laterally {G. ornata) ; club of antennae as 

 long as the five joints preceding, sixth joint briefly lamellate ; 

 prothorax oblique laterally, in the anterior part and from there 

 straight or little ampliate ; scutellum short, bluntly rounded at the 

 tip ; elytra narrowed laterally towards the posterior part, strongly 

 sinuate below the humeral part, and leaving a somewhat broad part 



