1900.J CataIo(iue of the Culeoptcra of South Africa. 489 



luimcnil ciillus; iinti'rior tibia) seven-dentate ; uudei' side and legs 

 densely pubescent. 



Length 9^-10 mm.; width 7 nun. 



Hab. Ovamj)oland (Omrromba), Southern Rhodesia (Salisbury). 



The shape of the genital armature is not unlike that of B. plausibile, 

 (plate xxxix., fig. 6, 6'), but the sheath is not grooved on the 

 upper part, and instead of being somewhat rounded, the apical pro- 

 jection is long, constricted at base, and dilated in a triangular process 

 pointing downwards, flat above, triangular laterally, and excavate in 

 the vertical part. 



BoLBOCERAs POSTicATUM, Bohem., 

 Of vers. Vet. Ak. Forh., 1860, p. 114. 



" Rounded, very convex, hght ferruginous, shining, clothed with 

 fidvous hairs beneath ; head thickly and roughly gr9,nulate, armed 

 in a line with the antennae with a bifid tubercle and having a 

 transverse carina in front of the tubercle ; prothorax closely punctate 

 but somewhat smooth before the basal part, very deeply sulcate in 

 the median part of the disk, obsoletely tuberculate on each side, 

 and having an arcuate impression at a distance from the apex ; 

 scutellum closely rugoso-punctate ; elytra distinctly punctato-striate, 

 and having behind a very large piceous black patch extending on 

 both sides; intervals plane, smooth; anterior tibite seven-dentate." 



Length 14 mm. ; width 9 mm. 



Hab. Neighbourhood of Lake N'Gami. 



I have only seen the type of this species. The clypeus and head 

 are similar to those of the female of B. capcnse, the prothorax is 

 excavate like that of B. consociuvi, but much more deeply punctate, 

 and the elytra are reddish from the base to the median part, and 

 deeph' infuscate in the posterior part. 



BoLBOCEKAs PANXOSUM, n. spec. 



This species is very closely allied to B. cajfrum ; it is, however, 

 distinguished by the very much less distinct basal angles of the 

 clypeus, as well as by the lesser median tubercle which is not 

 connected by a carina with the basal angles, and even almost 

 disappears ; the anterior margin of the prothorax is slightly sinuate 

 at middle, but is not tuberculate, and instead of a round, basal 

 anterior impression there is a very faint, longitudinal depression, 



