356 Annals of the South African Museum. 



arcuately into the almost vertical anterior face. Seen, from above, 

 the nodal portion is much narrower, a little longer or as long as wide, 

 the whole segment appearing gradually clavate. The 2nd segment is 

 fairly convex lengthwise, much less so transversely, transversely oval, 

 slightly more than twice as wide as long, and quite two and three- 

 quarter times wider than the 1st. 



$ (hitherto undescribed). 34-3'5 mm. Brownish-black; the 

 apical half of the abdomen paler, legs brown, paler at the articu- 

 lations ; tarsi and flagellum ochreous, mandibles reddish-brown. 

 Shinins;, the abdomen and nodes a little less shiniiiLf than the head 

 and thorax. Club of antenna and the last two tarsal joints 

 pubescent, the rest of the body entirely glabrous. The sculpture is 

 very distinctive and remarkable. It consists of elongate, elliptical, 

 and shallow pits, which have a silvery reflection, and give a false 

 impression of containing flattened scale-like hairs, like those of 

 Tetramorium setuliferum. However, under a high magnification 

 (100 diameters) it can be seen that such scale-hairs are absent, the 

 silvery appearance being due to the shape of the pits and their 

 polished surfaces. This puncturation is fairly dense and regular on 

 the head and abdomen, larger and more scanty on the thorax. It also 

 extends over the legs and antennae, the pits becoming increasingly 

 more abundant, narrower, and longer towards the apices of those 

 parts, and near the ends of the limbs bearing fine, flattened, pubescent 

 hairs. 



Head much higher behind than in front, very convex lengthwise, 

 the posterior margin widely concave, the posterior angles rounded 

 and projecting prominently outwards and backwards. The vertex is 

 narrow and convex transversely, not flat, as in globulinodis $ ; the 

 sides very steep, much more so than in globulinodis, and shallowly 

 concave above the posterior angles. Seen from above, the sides of the 

 head, from the posterior angles forwards to the eyes, are straight or 

 even a little concave, in front of the eyes moderately convex. The 

 eyes are fairly large, placed a little in front of the middle of the sides 

 of the head. Ocelli smaller than in globulinodis. Frontal carinae 

 wide apart, short, not extending beyond the antennal sockets. 

 Anterior margin of clypeus moderately convex ; frontal area shallow 

 and equilateral. Mandibles very convex externally, the masticatory 

 margin denticulate, with a larger apical tooth. The scape extends 

 back about as far as the anterior ocellus. Mesonotum and scutellum 

 flat transversely, nearly so longitudinally. The outline of the two 

 parts together, seen fi*om above, is roughly oval, one and three-fifths 

 longer than wide. The posterior half of the scutellum slopes down- 



