South African Coleopterous Fauna. 169 



the sides, the posterior black part extends from side to side for 

 about one-third of the length, and its inner margin is arcuate on 

 each side. 



Length 1(H- mm. ; width 3 mm. 



Hab. Southern Rhodesia (Salisbury). G. A. K. Marshall. 



HEXAGONIA UMTALINA, n. sp. 



Head and prothorax black, but oftener fuscous or fuscous-brown, 

 mandibles and basal joints of antennae rufescent, legs brick-red, not 

 infuscate at the knees ; elytra brick-red with the posterior part 

 black, the black patch beginning in the centre at about four-fifths of 

 the length, but prolonged along the sides to about two-thirds ; 

 abdomen and metasternuni brick-red ; head finely and very closely 

 punctate all over ; prothorax strongly ampliated in the anterior 

 part, deeply grooved longitudinally, closely punctate all over the 

 disk except along the outer margin, where there is a fairly wide 

 impunctate band ; elytra as in the preceding species, but with the 

 dorsal intervals a little more plane, the apical black part is nearly as 

 broad as in H. venusta, and also reaches from side to side, but it 

 varies in length. It differs from H. terminalis, Gemm., in the 

 greater ampliation of the prothorax and the finer and closer punctu- 

 lation of the discoidal part, and also of the head. 



Length 8^-10 mm. ; width 2|-3 mm. 



I have seen an example of this species in which the prothorax is 

 red. 



Hab. Southern Rhodesia (Urntali). A. Bodong. 



HEXAGONIA ANGUSTULA, n. sp. 



Head and prothorax testaceous-red, the former darker than the 

 latter, elytra and legs testaceous-yellowy somewhat flavescent ; head 

 more elongated behind the eyes than in the other South African 

 species, deeply punctate all over, the punctures fairly large and not 

 very closely set ; prothorax narrow, long in proportion to its width, 

 only very slightly ampliated laterally a little in front of the median 

 part, and gradually narrowed towards the base, grooved longi- 

 tudinally in the median part of the disk, which is covered with 

 moderately closely set, deep punctures ; elytra narrow, with the 

 shoulders strongly sloping, deeply punctato-striate and with the 

 dorsal intervals plane. 



Length 8 mm. ; width l|-2 mm. 



This species is easily distinguished by its narrow width ; the 



