80 Transactions Soiith African Philosophical Socictij. [vol. xii. 



Pachysoma denticollu, Per., 

 Plate XXXVII., fig.' 34. 

 Trans. S. Afric. Phil. Soc, vol. iv., 1888, p. 93. 

 Black, moderately shining, elytra with a broad rufescent patch 

 lieginning at the third stria, extending on the disk close to the outer 

 margin, and reaching behind to three-fourths of the length ; head 

 foveolate with the intervals minutely granulose, lateral lobes of cly- 

 peus with distinct granules, anterior part of clypeus sharply quadri- 

 dentate, the two median teeth being the longest ; prothorax acutely 

 dentate laterally, the teeth being separate and equi-distant ; the 

 basal margin is serrulate, the disk foveate with the walls of the foveas 

 raised, and there is in the centre a broad, deep lozenge-shaped smooth 

 impression reaching apex and base, and a diagonal, sub-basal ovate 

 one, also smooth, but having a few foveas in the centre ; elytra 

 rotmid, smooth, narrowly striate with the intervals convex, and 

 having each a series of small granules, outer margin distinctly 

 bi-carinate ; pygidium with a few granules in the centre ; anterior 

 tibige sharply quadri-dentate outwardly, sharply serrate from the 

 basal tooth to the base and with the serration not closely set, 

 incurved at tip where the inner spur is very distinctly divaricating 

 and bi-fid in the male, scooped out inwardly below the inner spur, 

 and provided with an incised tooth and two short sinuations in the 

 female, while in the male the upper carina is produced inwardly and 

 armed 'with conspicuous sharp teeth, the inner margin is thus 

 grooved owing to the projecting upper carina, and is also denticu- 

 late, and the broadly dentiform process at the tip is not incised; 

 the hind tibiae are similar in both sexes ; metasternum granulose, 

 slightly impressed in the centre ; abdominal segments hardly granu- 

 lose. 



Length 16-17 mm. ; width 11 mm. 



Ilab. Damaraland. 



Pachysoma schintzi, Fairm., 

 Annal. Soc. Entom. de France, 1888, p. 178. 

 "Ovate, convex, black, shining; head transverse, feebly scabrate, 

 smooth in the centre and dilated and flattened on each side, undulate 

 laterally and somewhat sharply angulate in front ; clypeus slightly 

 rounded in the middle and armed on each side with a horizontal 

 process bi-lobate at tip ; prothorax transverse, a little rounded yet 

 slightly angular laterally with the margins crenulate, the lateral ones 

 are frfnged with long brown hairs, and the basal one is broadly 

 sinuate with the angles strongly rounded on each side ; elytra short, 



