1900.] Catalogue of the Coleoptera of South Africa. 147, 



Female : Clypeus a little more elongate than in the male ; pos- 

 terior femora serrulate underneath ; the raised, grooved carina at 

 the base of the head is not higher than that of the male. 



Length 23-25 mm. ; width 12^-14 mm. 



0. zamhezianus, Per., is only the large development of the typical 

 '0. robustus ; it is also a little more convex. 



Hab. Southern Rhodesia (Victoria Falls, Manica), Ovampoland. 



Onitis inveksidens, Lansb., 



Plate XXXIV., figs. 10, 10a, 10&, 10c, lOd, 



Annal. Soc. Entom. d. Belg. 1875, p. 81. 



Piceous-black, shining, somewhat depressed ; head granulosa and 

 somewhat plicate transversely in both sexes, no clypeal carina, 

 frontal carina a little curved, distinctly raised, and connected 

 laterally with the basal one which is not quite so much raised, but 

 has in the centre a short blunt tubercle, gense rounded, not 

 prominent at tip ; prothorax not very convex, regularly ampliate 

 laterally, and having no basal angle, covered with moderately closely 

 ■set, round punctures, while the two basal impressions which are 

 very shallow and nearly confluent, are covered with fine granules ; 

 it is marginate laterally and in front, but not at the base ; scutellum 

 small but very distinct ; elytra sub-parallel, very slightly sinuate 

 behind the shoulder, humeral callus moderately strong, strige 

 narrow, intervals slightly convex near the base, fifth one a little 

 -convex for nearly all the length, and all covered with small but deep 

 punctures ; pygidium set with small granules ; metasternum scabrose 

 and having in the centre a longitudinal smooth, shallow groove. 



Male : Anterior tibiae long, slender, deeply curved inwardly from 

 middle to apex, tri-dentate outwardly, or having occasionally a small 

 •sinuation where the basal tooth should have been, the three teeth 

 are triangular, not very long, and have a tendency to point a little 

 backward, the mucro is slanting, somewhat sharp at tip, and densely 

 ciliate, underneath there is a long carina reaching from under the 

 basal outer tooth to the base where it is produced into a long, 

 sharp triangle (figs. 10, 10a) ; anterior femora sharply carinate 

 and having a moderately long tooth close to the knee (fig. 10a) ; 

 intermediate femora deeply incised in the middle underneath and 

 having on each side of the incision a curved tooth (fig. 10b), 

 intermediate tibiae simple ; posterior femora having on the upper 

 side a projecting spine, long, sharp, and a little sinuate (fig. 10^), 

 .-and at the lower side a narrow lamina ending in a long, sub- 

 horizontal sharp spine (fig. 10c) projecting from about the median 



