1900.] Catalogue of tJie Coleoptcra of South Africa^ 85 



of the emargination produced into a sharp tooth ; prothorax short, 

 convex, a httle attenuate laterahy in front but not angulate towards 

 the median part, and having a small lateral tubercle ; elytra convex, 

 sub-orbicular or oblong, finely striate with the intervals punctato- 

 squamose, they have a sharp supra-marginal carina ; pygidium 

 infiexed, sharply marginate ; cotyloid cavities slightly diagonal, 

 metasternum separated from the prosternum by an indistinct suture, 

 and not impressed; legs as in Anachalcos, but the joints of the 

 intermediate and posterior tibiae are longer and more conical. 



The characters distinguishing this genus from Anachalcos, which 

 it resembles, are the presence of the bi-lobate ligula and the less 

 dilated labial palpi ; the joints of the tarsi are not so short and are 

 more conical, and the basal one is longer than the one following ; 

 the metasternum is not edged at tip by a semicircular ridge, l^ut 

 by a very indistinct suture, and the pygidium is inflexed, not 



vertical. 



Key to the Species. 



Prothorax diagonally attenuate laterally from near the middle 

 to the anterior angle ; elytra short, convex, somewhat rotund, 

 deeply striate piimilus. 



Prothorax not very diagonally attenuate laterally in front ; elytra 

 elongate, sub-oblong, not deeply striate marginatus. 



Gybonotus pumilus, Bohem., 



Plate XXXYIII., fig. 5. 



Insect. Caffrar., iii., p. 197. 



Dark bronze, sub-opaque ; head covered with very closely set deep 

 punctures, suture of the genae quite indistinct ; prothorax short, 

 convex, carinate in front and laterally with the anterior angles 

 rounded at tip, diagonally attenuate laterally for a third of the 

 length, and straight from there to the base with the basal angle 

 sharp, covered laterally and along the base with confluent minute 

 foveolae, while the median anterior part is closely punctured ; 

 elytra very convex and dehiscent behind, having a very sharp supra- 

 marginal carina broadly separated from the outer margin and 

 overhanging it much ; they are narrowly but deeply striate ; the 

 intervals are covered with deep punctures each filled with a slightly 

 flavescent squamose hair ; pygidium convex, inflexed, rugoso- 

 punctate ; under side and legs foveolato-punctate, median part 

 of metasternum aciculate. 



Length 11-13 mm. ; width 8-9 mm. 



Hah. Natal (Durban, Eshowe), Transvaal (Potchefstroom). 



