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



although much less strongly than in the other species of Trochalus, 

 the median part of the anterior margin is also plainly angular, which 

 is not the case in T. urbanus, and as the outer angles are renexed 

 this anterior margin is therefore tri-dentate, there are no traces of a 

 longitudinal keel ; the anterior tibiae are bi-dentate. 



Length 5 mm. ; width 3-| mm. 



Hab. Southern Ehodesia (Sebakwe). 



(SjJecies unknown to me or which I have not been able to identify.) 



Trochalus piceus, Fabric, 



Syst. Eleuth., i., p. 46; Olivier, Entomol., i., 5, p. 47, pi. v., fig. 43 ; 

 Burm., Handb. d. Entomol., iv. 2, p. 161. 



" Sub-globose, ferruginous, sub-fuscous, and with a coppery sheen ; 

 densely punctate ; elytra very obsoletely striate, the sutural stria not 

 much impressed. 



Length 2f-3 lin. 



More spherical than the preceding form (T. arugineus), but not 

 quite spherical ; vivid brown, sometimes paler, sometimes darker, 

 and with a strong bronze sheen, densely and finely punctate ; elytra 

 very weakly striate, the sutural stria is more marked than the others; 

 head with a high transverse ridge between the frontal part and the 

 clypeus, the latter slightly convex, more coarsely punctate ; pygidium 

 and under side with more scattered and coarse punctures." 



I am inclined to consider this species as identical with the short, 

 and therefore more convex, form of T. cerugineus, which, as I have 

 already mentioned, occurs also in Cape Colony. Burmeister's 

 example was collected by Ecklon. This collector did not, to my 

 knowledge, collect Insects in Natal or the Transkei, until long after 

 the publication of Burmeister's book. 



Trochalus picipes, Klug., 

 Monatsb. Berl. Ac, 1855, p. 659; Peter's Eeis., 1862, p. 258. 



" Globose, fuscous-black, pectus and legs piceous. Length 4 lin. 

 Only one example from Tette. Shape and size of Byrrhus pilula. 

 Belongs to the first section proposed by Burmeister for species with 

 bi-dentate anterior tibiae. The upper side is deep dark brown, 

 almost black, and without sheen. Head and prothorax tolerablv 

 densely and elytra scarcely visibly punctured, the latter indistinctly 

 striate. Under side and legs dark piceous-brown." 



