656 Annals of the South African Museum. 



C. ACVAPIMENSIS, Mayr. 



Verh. Zool. Bot. Ges. Wien, vol. 12, p. 664, % 1862. 



Qj., 7 - 7-8 - 2 mm. Very dark brown or blackish brown, the anterior 

 third or less of the head sometimes more or less reddish brown, the 

 legs and antennae pale brownish ochreous (pale burnt umber), the 

 mandibles castaneous red. Head and thorax dull, the anterior margin 

 of the head feebly shining, the petiole and legs moderately shining, 

 the abdomen subopaque at the base, the apical half nitidulous. Head 

 and thorax closely and finely reticulate-punctate, petiole and legs 

 smooth, abdomen transversely rugulose or aciculate, and also very 

 sparsely punctured. Pubescence yellowish, short, decumbent and 

 very scanty. Exserted pilosity long, pointed, pale yellow, on the 

 head present only on the clypeus and between the frontal carinae. 



Head, including closed mandibles, subtriangular , the posterior 

 angles rounded, the sides moderately convex, the occipital margin 

 shallowly concave. Clypeus very obtusely carinate, hardly produced 

 into a lobe in front, or only into a very short one, the anterior 

 margin feebly concave in the middle. Mandibles moderately shining, 

 shallowly punctured, armed with 6 or 7 teeth. Scape of antennae 

 extending beyond the hind margin by about the length of the 1st 

 joint of the flagellum. Eyes flat, placed behind the middle of the 

 sides. Frontal carinae fairly far apart. Pronotum one-third wider 

 than long, less convex than in C. maculatus, somewhat flattened 

 above. Mesonotum as long as wide in front, less narrowed behind 

 and less convex transversely than in C. maculatus; metanotum very 

 short, almost linear. Dorsum of epinotum twice as long as wide, 

 merging gradually into the sides, but nevertheless wide in compari- 

 sion with maculatus and most of its races, also merging by a low 

 and rounded angle into the shorter and oblique declivity; the latter 

 is smooth and shining at the base. Convexity of thorax fairly great, 

 L. = 3 1 H. ; the dorsal profile forms a curve which is almost con- 

 tinuous, broken only at the junction of the two faces of the epino- 

 tum. Scale of petiole thin, twice as high as wide, higher than the 

 petiole is long, the anterior face barely convex, the posterior face 

 flat, the dorsal edge trenchant and moderately convex from side to 

 side. Tibiae almost cylindrical, not setose below. 



§ minor, 5-6 mm. A little paler than the 2|, the head and thorax 

 being more or less reddish brown. The head is a little more than 

 one-fifth longer than wide, widest across the eyes, the sides in front 

 of the eyes moderately convergent anteriorly, convex behind them, 

 the posterior margin straight or feebly convex and mot much wider 



