672 Annals of the South African Museum. 



so on the clypeus which, like the cheeks, has a few large and very 

 shallow punctures. Mandibles 6-dentate, dull, rugulose, with a few 

 strong punctures. 



Head about as long as wide behind, subquadrate or only slightly 

 narrowed in front, the posterior margin almost transverse, the sides 

 and posterior angles moderately convex. Clypeus not carinate, very 

 slightly convex transversely, the median area a little wider than 

 long, its anterior margin feebly arcuate. Frontal carinae divergent, 

 wider apart behind than they are long. Eyes feebly convex, placed 

 at about the middle of the sides. The scapes just extend back as 

 far as the occipital margin. PrOnotum not very convex above, the 

 shoulder rounded, the sides fairly steep but not marginate laterally, 

 wider than long. Promeso- and meso-epinotal sutures well defined. 

 Mesonotum convex transversely, as wide in front as long, obovate, 

 considerably narrowed posteriorly. Dorsum of epinotum convex 

 lengthwise and transversely, slightly widened towards the apex, one 

 and a half times longer than wide, the sides fairly steep, a little 

 longer than the declivity, which it joins in a rounded but fairly 

 distinct angle ; declivity concave and subvertical. Scale of petiole 

 fairly thick, the dorsal edge rounded from front to back, the anterior 

 face feebly convex, the posterior face flat. Tibiae cylindrical. 



$ minor, 3"5-4 mm. Head subovate, widest in the middle, the 

 margin behind the eyes semicircular, one-third longer than wide. 

 Scapes longer than in the § major, extending beyond the hind 

 margin by one-third of their length. Pronotum relatively longer 

 than in the § major, slightly flattened above. Meso-epinotal suture 

 shallower, dorsum of epinotum more oblique and scale of petiole 

 relatively narrower and more obtuse above than in the § major. 

 Otherwise like the latter. 



Port Elizabeth, (C. Reeve), ex. Albany Museum coll. 



(S.A.M., R.M., G.A. colls.; types in my collection). 



Sub-genus MYRMOPSAMMA, Forel. 



For characters see table of sub-genera. 



%. Head usually wider than long, not much narrower in front 

 than behind. In all forms excepting C. cuneiscapus Forel, which 

 may be recognised by the angular lobe at the base of the scapes, 

 the structure of the clypeus is distinctive. The upper third or so 

 of the clypeus forms a shelf (more or less crescentic in outline) 

 which slopes downwards and forwards, and the lower two-thirds, 

 which is subvertical and concave lengthwise, meets the upper third 



