A Monograph of the Formicidae of South Africa. 377 



the distal third ; between the latter and the apical pair lies a smaller 

 tooth. Pronotum submarginate at the sides, feebly carinate in the 

 middle, a little longer than wide, the anterior margin very convex 

 transversely, sloping downwards and forwards. Pro-mesonotal suture 

 obsolete above. Mesonotum longer than wide, the posterior half 

 narrower than the anterior and depressed. The dorsum of theepi-. 

 notum a little longer than wide, feebly convex lengthwise, merging 

 by a short curve into the declivity. The latter is margined on each 

 side by a spongy band, which reaches the lower edge of the epinotal 

 spines. The latter are longer than their basal width, nearly as long 

 as the interval between them. Peduncle of the petiole longer than 

 the node ; the latter cuboid, as wide as long, a little wider behind 

 than in front. Second node transversely oval, twice as wide as the 

 1st, two-thirds wider than long. Both nodes margined behind and 

 below (including the peduncle) with spongy tissue, which also extends 

 over the sides of the base of the abdomen. Under the 2nd node this 

 spongy tissue is deeper than the node itself and covers a spinose 

 process. Abdomen flattened above, very convex below. 



Bulawayo. Taken on one occasion only, under a stone and in the 

 nest of Bothroponera Krugeri, Forel. Apparently very rare. (E,.M., 

 G.A. colls.) 



S. Havilandi, Forel. 



Mitth. Mus. Hamburg, vol. 22, p. 13, £ , 1905. 



" ^ • 2-4-2-6 mm. Mandibles half as long as the head, feebly 

 curved outwardly near the base and thence almost straight or barely 

 convex, so that a space is left between them which is a little wider 

 than the width of the mandible itself. The latter is narrow, at first 

 parallel-sided, then gradually attenuated in the apical half, quadri- 

 dentate. Two long sharp teeth are placed on the inner margin behind 

 the apex. The two apical teeth are long, thin, and widely divergent, 

 the upper one longer than the lower. The mandibles are dull, with 

 a long, yellowish and adpressed pubescence, and a row of longer and 

 outstanding hairs on the inner margin before the apex. Head cordi- 

 form, much longer than wide . . . with a feeble semilunar 

 emargination posteriorly. Not emarginate laterally. Clypeus wider 

 than long, emarginate in front, fairly flat. Frontal carinae dilated 

 in front. Scapes curved, feebly spindle shaped. Last joint some- 

 what longer than the rest of the flagellum. The anterior part of the 

 head, in front of the antennal sockets, transversely rectangular 

 much wider than long. Eyes fairly small. Pronotum convex in, 



