[Temporary.] 



562 Transactions South African Philosophical Society, [vol. xii. 



the base to a third of the length, emarginate there and slightly 

 attenuate towards the apex where it is very deeply sinuate in the 

 outer angles, and bi-lobate at the apex ; it is not very convex in the 

 median part, but is deeply impressed at apex ; maxillse with the upper 

 lobe armed with two sharp teeth bent at right angles, the upper of 

 which is a little concave and placed above the second one which is not 

 hollowed and is set on the inner margin and a little below the first, 

 and below these the inner lobe is produced into a trifid, transverse 

 tooth ; palpi and mandibles as in Bhizoplatys, but the mandibles are 

 more aculeate and produced at apex into a triangular reflexed tooth. 



Ehizoplatodes castaneipennis, Bohem., 



Plate fig. 



Insect. Caffrar., ii., p. 27. 



Bhizoplatys amhiguus, Gerst., Deck. Eeis., p. 873, p. 105, pi. vii., 

 fig. 2. 



Head and prothorax piceous black ; elytra either piceous black or 

 €hestnut-brown, legs piceous red ; head very rugose ; clypeus very 

 obliquely attenuate laterally, and with the apical part triangular and 

 reflexed ; in the male the posterior part of the head is deeply 

 excavate in the middle, and there is, close to the apex of the 

 clypeus, a conspicuous, vertical tooth, hooked backwards at tip 

 and about 2 mm. long ; in the female there is a similar impression, 

 but much more shallow, the dentate apex of the clypeus is prolonged 

 towards the median part in a short, high carina, connected often 

 with a sharp tubercle situated in the centre of the head ; prothorax 

 briefly retuse in front in the male, the retuse part being divided 

 nearly into two by a triangular, narrow longitudinal impression 

 which is continued as a deep furrow along the discoidal part as 

 far as the base ; in the female the anterior part is not retuse, and 

 the impression is more in the shape of a groove, also continued as 

 far as the base ; in both sexes the surface is covered with round 

 punctures a little remote in the posterior part and denser and a little 

 deeper in the anterior and lateral parts ; scutellum punctate in the 

 base and centre; elytra elongate, somewhat plane, nearly parallel, 

 declivous at apex, covered with shallow, slightly cicatricose 

 punctures closely set, and with the stria3 obliterated ; pygidium 

 moderately closely punctate in the male, rugose in the female : 

 abdominal segments with one median row of setigerous punctures, 

 but the apical one is smooth in the centre in the male ; this segment 

 is very rugose, and the others closely punctured, as well as having 



