122 Transactions South African Philosophical Society, [vol. xiii- 



longer ones along the outer margin ; femora and tibiae somewhat 

 hairy. 



Female unknown. 



Length 18 mm. ; width 8 mm. 



Hab. ? Transvaal (no exact locality). 



Gen. iEGOSTETHA, Blanch., 

 Catal. Coll. Ent. Mus., 1850, p. 163. 



This genus differs from Macrophylla merely in the number of the 

 antennal joints forming the club, these being three instead of five, 

 the club is in some species even longer and more curved than in 

 Macrophylla, and the seventh joint is occasionally also laminate 

 and long ; the shape of the clypeus varies also in the species, some 

 having an inner spur on the anterior tibiae, others none ; the facies 

 also is not uniform, being sub-cylindrical in some and plainly 

 depressed in others ; these differences, however, and also some 

 other minor ones cannot be regarded as generic. 



Key to the Species. 



A 2 . Seventh joint of antennae not laminate. 



B-. Anterior tibiae with an inner spur. 



Body testaceous-red. 



Clypeus semi-circular, plane, separated from the frontal part 

 by a distinct transverse suture ; upper side glabrous ; club 

 of antennas long, very little curved simplex. 



A 1 . Seventh joint of antennae laminate, long. 



Head and prothorax black. 



Clypeus very concave, straight in front, separated from the 

 frontal part by a very shallow arcuate line, upper side very 

 pubescent ; club of antennae very long and strongly curved . . ciliata. 



B 1 . Anterior tibiae without an inner spur. 



Clypeus plane, parabolic in front. 



Clypeal suture fine, but distinct ; prothorax and elytra 

 covered with a short, appressed pubescence, body massive, 

 short brachiata, 



Clypeal suture obliterated or indistinct; upper side glabrous; 



body sub-parallel longiconiis. 



iEGOSTETHA SIMPLEX, n. Spec. 



Brick-red, shining, glabrous on the upper side, but with the 

 vertical anterior part of the clypeus, the labrurn, and the outer 



