516 Transactions SoutJt African Philosophical Society, [vol. xiii. 



cence underneath ; vertex of head strongly convex, transverse 

 occipital keel wanting ; prothorax very closely punctate, and having 

 a median smooth groove in the posterior part, and two intra-angular 

 aciculate posterior impressions ; scutellum punctate, the margin 

 raised ; epimera rufo-hirtose ; elytra with the suture and three costae 

 on each side little raised, intervals aciculate ; pygidium rufo-hirtose. 

 Of nearly the same size as C. maurus, from Senegal, but bx*oader, the 

 elytra are shorter, the prothorax more orbicular, and widest across 

 the median part. The head is also not carinate between the eyes, 

 the prothorax has no frontal tubercle and no dorsal impressions." 



Length 25 mm. 



llab. South Africa. 



I have not met with this species. 



COSNOCHILUS EMARGINATUS, Westw., 



Thesaur. Entomol., p. 41, pi. xii., fig. 1. 



" Black, very shiny, head and prothorax very closely punctate ; 

 clypeus moderately rounded ; prothorax rounded in front, depressed 

 above, broadest after the median part and with the posterior angles 

 rounded, and marked on each side with a minute, very shallow 

 impression placed between the emarginate part and the posterior 

 angles, sides and head with a yellow, setose pubescence ; scutellum 

 and elytra sparsely punctate, sides and apical part of the latter more 

 punctate, and each one with four very slender longitudinal strioles 

 running in pairs, next to the suture and parallel with it, disk convex 

 between the median part and the strioles, humeral part prominent, 

 behind the humeral part is a curved sulcus, and another much less 

 deep, oblong, sub-lateral and situated beyond the middle ; abdomen 

 convex ; pygidium convex, setose ; antennae piceous. The polished 

 surface of this insect, and the peculiar form of the prothorax, will 

 distinguish it from its congeners. It bears indeed a certain amount 

 of resemblance to some of the species of CymopJiorus, but the very 

 acutely bi-dentate galea of the maxillae, and the great length of 

 the bi-dentate terminal spine of the mando prevent its introduc- 

 tion into that genus. The elytra are twice the length of the widest 

 part of the prothorax ; the four posterior tibiae are longitudinally 

 sulcated, and there is a fine impressed line down the middle of the 

 metasternum." 



Length 13 mm. ; width 5 mm. 



ILib. Damaraland. 



L have not met with this species. 



