1900.] Catalogue of the Coleoj^tera of South Africa. 231 



Female : The only distinctive character of this sex is the presence 

 of a frontal carina, the second one on' the vertex is situate nearer to 

 the base than in the male ; the prothorax has hardly any trace of the 

 anterior tubercles. 



Length 9-10 mm. ; width 5-6 mm. 



Hah. Cape Colony (Burghersdorp) , Transvaal (Potchefstroom). 



Onthophagus bi-plagiatus, Per., 

 Plate XXXVI., fig. 3. 

 Trans. S. Afric. Phil. Soc, 1888, vol. iv., p. 99. 

 0. suturalis, Per., loc. cit., p. 100. 



Male : Black, very shining, nearly glabrous, elytra with a basal,, 

 pale flavous macula extending from the first to the fourth stria on 

 each side, or entirely pale flavous with the suture, and sometimes 

 part of the apical margin, black ; antennae infuscate ; head deeply 

 but not closely punctate on the clypeus which is rounded laterally 

 and somewhat obtuse and slightly emarginate at tip, genae angular 

 at middle, there is a very distinct, arcuate frontal carina, the 

 vertex is smooth, and close to the base there is a transverse, not much 

 raised carina, slightly sinuate in the middle ; prothorax very convex, 

 ampliate laterally, marginate all round, very slightly acuminate in 

 the median part of the base, quite smooth in the median and 

 posterior part but having a few scattered deep punctures on the sides 

 of the anterior part, it has a deep, narrow excavation in front, and 

 the upper sides of the excavation are sharply aculeate ; elytra 

 ampliato-ovate, narrowly striate, striae shallow, closely punctate but 

 not distinctly geminate, intervals plane and quite impunctate, second 

 interval not wider than the third, humeral tubercle indistinct ; 

 pygidium with deep, scattered punctures very briefly setigerous ; 

 metasternum smooth in the median part and having at the base a 

 broad, deep, round impression ; anterior tibiae with a strong inner 

 tooth at tip, apical spur slender. 



Female unknown. 



Length 7-7^ mm. ; width 4-4^ mm. 



Hah. Cape Colony (Beaufort West, Worcester, Griqualand West),. 

 ? Transvaal. 



Onthophagus pallidipennis, Fahr., 

 Insect. Caffrar., ii., p. 303. 

 Black, shining, nearly impunctate and glabrous, elytra pale- 



