638 Transactions South African Philosophical Society, [vol. xiii. 



small excavations from which rise two conical processes set close to 

 each other, in the posterior part of the prothorax and in a line with 

 the space separating these processes is a longitudinal ridge reaching 

 the base and having on each side a very deep depression, the surface 

 is closely punctulate, and has a coriaceous appearance ; elytra 

 longer than the prothorax, finely punctate striate, with the punctures 

 very shallow, the intervals are plane and vaguely aciculate ; the 

 underside and legs are aciculate punctate ; the anterior tibiae are 

 •5-dentate outwardly. 



This is the first species of Bolboceras found at the extreme end of 

 South Africa. Its facies differs gi'eatly from that of the other known 

 South African species, and so does the shape of the genital clasps. 



Length 17 mm , width 10 mm. 



Hub. Cape Colony (Darling). 



Bolboceras iphicles, K< 

 Ann. Soc. Ent. Belg., li., 1907, p. 29. 



Male : Brick red, shiny, antennal club llavous ; glabrous on the 

 upper side, clothed underneath with long, light, fulvous hairs ; labrum 

 straight in front ; clypeus sharply carinate, vertical and straight in 

 front with the sides diagonally produced as far as the apex of the 

 genao, in the central part of the head is a truncate, sub-laminate 

 tubercle equi-distant from apex and base, surface equally roughly 

 punctate ; prothorax with the median anterior part excavated at a 

 short distance from the apex into two large, deep holes separated by 

 a smooth ridge which is continued at the apex as a long acute tooth 

 slanting slightly forward, the outer wall of the excavation being also 

 produced on each side in a similar but more broadly triangular tooth, 

 at the back of each of the anterior excavations is a sub-transversely 

 arcuate narrower and shallower one separated from the former by a 

 very narrow, sharp ridge, and abutting almost on the marginal 

 groove; all the excavations are smooth, and the sides, outer part of 

 teeth included, are coarsely punctate rugose, there is, however, a 

 narrow, smooth band above the groove of the margin ; scutellum 

 impunctate ; elytra narrowly but distinctly striate punctate with the 

 intervals smooth, and the punctures somewhat fine and shallow; 

 anterior tibiae strongly 5-dentate outwardly. 



Female : Head as in the 3 and with a short, weakly, tri-denticu- 

 late frontal carina, instead of a tubercle; prothorax sloping in the 

 anterior part, the upper part with a very weak transverse ridge 

 about as wide as the head, a very shallow depression lower down on 

 each side of it, limited outwardly by a distinct tuberculiform ridge, 



