1908.] Catalogue of the Coleoptera of South Africa. 561 



These divisions are as follows : — 



Onthophagus, sensu stricto. 

 First Division. 



1. (6) Prothorax with the punctuation simple, often umbilicate, but neither 



raspy nor granulose even in front or on the sides : occasionally the 

 space between the punctures is more or less rugose. Basal part of 

 pygidium with a transverse ridge connecting with that of the abdominal 

 sides. 



2. (3) Intervals between the elytral strife plainly granulose or having punctures 



disposed in at least one or two series, or irregularly ; in some black 

 species the discoidal part of elytra has only some very sparse but very 

 distinct granules, and the sides are plainly granulate or punctured. 

 Prothorax seldom (jamais en majeure partie) smooth and with an 

 agglomeration of larger punctures on each side of the disk. 



3. *Base of prothorax without a plain fold, at least laterally. . First Division. 



4. Base of prothorax with a plain fold, along the whole length. 



Second Division. 



5. (2) Intervals between the elytral strias smooth, except for a few hardly distinct 



punctures or granules, or an extremely fine aciculation. Prothorax 

 oftener than not with the greatest area smooth and with an agglomeration 

 of punctures on each side of the disk, sometimes with a moderately fine 

 and not closely-set punctuation, at least in the centre, and with a wider 

 agglomeration of punctures on each side of the disk ; seldom is the 

 punctuation almost uniform. Elytra testaceous with or without black 

 spots, or black with a testaceous patch. Size very small, or somewhat 

 small Third Division. 



(j. (1) Prothorax granulate or with raspy punctures at least in front or on the 

 sides, the anterior edge of the punctures more raised than the posterior, 

 and more or less asperous. 



7. (8) Pygidium without transverse ridge along the base, the whole surface 



• covered with long hairs, or only the basal part which, then, bears a long 

 fringe of hairs where the transverse ridge should have been ; base of 

 prothorax with a fold ; elytra most often testaceous, with or without spots, 

 seldom black or brown Fourth Division. 



8. (7) Pygidium having at the base a transverse carina which continues that of 



the abdominal sides. 



9. (10) Base of prothorax without a distinct fold, at least on the sides. 



Fifth Division. 



10. (9) Base of prothorax with a very plain fold all along the width. 



Sixth Division. 



In addition to the genus Onthophagiis, in the strict sense, 

 d'Orbigny retains Lansberge genus Proagoderus (Not. Leyd. 

 Mus., v., 1883, p. 14), but only as a sub-genus. 



* This character has to be ignored for certain species. 



