1900.] Catalogur of the Colcoptcra of South Africa. 525 



Heteronychus transvalicus, Kolbe, 

 Entomol. Nachr., 1890, p. 167. 



" Black, shining, obov;ite, palpi and antenna3 brown, tarsi chestnut, 

 clypeus sub-glabrous transversely, a little rugose, slightly reflexed, 

 briefly bi-lobate or obtuse in front, forehead not impressed, a little 

 more rugose transversely in front, transverse carina slender, inter- 

 rupted in the centre ; prothorax transverse, attenuate in front, little 

 narrowed behind, ampliate laterally past the middle, anterior angles 

 acuminate, posterior obtusely rounded, whole surface impunctate ; 

 elytra short, a little ampliate behind, punctato-striate in the dorsal 

 part, and- with the striae moderately impressed, three to five or four 

 and five abbreviated behind, and equally remote from one another ; 

 intervals moderately plane or slightly convex, impunctate, eighth in- 

 terval with a few punctures, apical part punctate ; anterior tibiaB tri- 

 dentate outwardly and having a small . tooth between the two basal 

 ones, basal teeth sometimes rounded ; pygidium convex, shining, 

 impunctate, closely rugose and punctate along the base for more 

 than a third of the total transverse area, but much more slightly 

 punctate in the centre of the base ; no ante-anal apical pygidial area, 

 and the margin is narrow ; stridulating folds of the propygidium very 

 fine and transversely striate, arcuate, very distant towards the apex, 

 and joining in front. 



Length 15 mm." 



Hah. Transvaal (Lydenburg), teste Herr Kolbe. 



PENTODONTOSCHEMA, n. gen., 



riui t u XL., fig. 11 . 



Mentum elongate, ovate laterally from the base to near the inser- 

 tion of the palpi, a little constricted there and with the apical part 

 oblique on each side from the outer angle to a deep, median incision, 

 the outer surface is convex, but there is 'an excavation towards the 

 apical margin varying in depth, but sometimes very broad and deep ; 

 last joint of labial palpi elongate, sub-acuminate, straight outwardly, 

 slightly swollen inwardly, last joint of maxillary palpi similar in 

 shape, but a little longer ; maxillae five-dented inwardly except in 

 P. capicola, where there are only four teeth, the teeth are long and 

 hooked, the two inner ones being connate at the base ; mandil^les 

 bluntly tri-dentate, reflexed and projecting beyond the clypeus which 

 is acuminate laterally, straight or very little rounded, and bi-dentate 

 or not ; head with a transverse carina sometimes tuberculate at 



