1900.] Caialoijue of the Coleoptcra of South Africa. 523 



Heteronychus paupekatus, 11. spec, 

 Plate XL., i\^.Jd./o. 



Black, shining ; head with a very ill - defined clypeal carina 

 which is hroadly interrupted at middle, frontal carina very distinct, 

 arcuate, and produced into a sharp triangle directed towards the base at 

 middle, head moderately rugose on the clypeus, but nearly smooth 

 beyond the frontal carina in the male (the female is unknown) ; pro- 

 thorax gradually attenuate laterally from the base to the apex ; 

 intervals of elytra deep, btit somewhat narrow, and with the punc- 

 tures closely set, the seven dorsal intervals are impunctate, but the 

 eighth is punctate for the whole length ; basal part of pygidium very 

 rugose for nearly half the width with the median part of the band 

 somewhat arcuate towards the base, the remainder of the pygidium 

 is quite smooth ; penultimate abdominal segment of abdomen with 

 only one setigerous puncture ; metasternum normal ; anterior tibiae 

 with an intermediate serrate tooth between the basal and the second 

 outer tooth. 



Length 13-|^ mm. ; width 7 mm. 



Hab. Southern Ehodesia (Salisbury). 



Heteronychus dissidens, n. spec, 

 Plate XL., fig. ie:^. 



Black, moderately shining, with the elytra opaque ; head entirely 

 rugose, clypeal carina broadly interrupted at middle, frontal one 

 entire, produced into a sharp triangle in the centre ; prothorax 

 moderately attenuate laterally in front, but not quite parallel in the 

 posterior part ; scutellum sharply ogival ; elytra somewhat short, 

 slightly sinuate laterally at a short distance from the shoulders, a 

 little oblique and distinctly ampliate from there to the posterior 

 rounded part, very deeply striate, but the punctures on the 

 strige are nearly obliterated in the two examples at my dis- 

 posal, the dorsal intervals are a little convex, especially past the 

 median part, but tlxe second, fourth, and sixth have a faint trace of 

 seriate punctures from near the base to the apex ; pygidium with a 

 vei'y closely punctured transverse basal band extending over half 

 the width, and with the remaining space smooth ; in the female this 

 band is more broadly pitted ; anterior tibise with hardly any trace 

 of a serrate tooth between the basal and second one ; metasternum 

 normal. 



Length 13 mm. ; wddth 7-7|- mm. 



Hab. Southern Ehodesia (Salisbury). 



