A Monograph of the Formicidae of South Africa. 467 



front of the eyes. Mandibles moderately shining, striate, and with a 

 row of large punctures parallel to the masticatory margin. Head, 

 excluding the mandibles, fairly round, the posterior margin straight, 

 the posterior angles widely rounded. Eyes large, convex and 

 prominent, placed at the middle of the sides. Clypeus feebly carinate, 

 the frontal area large and well defined. Frontal carinae parallel, extend- 

 ing back a little beyond the first third of the head. Scapes extending 

 beyond the hind margin by a length equal to twice their apical width. 

 Pronotum convex in front and above, the posterior lateral angles pro- 

 duced into two rather large cones ; these are more easily seen in profile. 

 Mesonotum with a feeble transverse impression. Meso-epinotal 

 suture deep. Dorsum of epinotum nearly twice as long as wide, sub- 

 margined at the sides. Epinotal spines very long, acute, subvertical, 

 feebly divergent, not quite as long as the dorsum of the epinotum. First 

 joint of petiole four-fifths longer than high, the dorsal edge obtuse. 

 Second node not much wider than long, the sides angular. Legs long. 

 £ . 9 - 8 mm. (hitherto undescribed). Pilosity and pubescence as in 

 the 1/ . Colour darker than in the 1/ . The sculpture of the head 

 like that of the % , but much stronger. The vertex strongly and longi- 

 tudinally striate, the spaces between the striae nearly smooth and 

 very shining. Head obliquely truncate behind the ocelli and trans- 

 versely striate. The fundamental sculpture of the mesonotum is 

 reticulate-rugulose, with some fairly close longitudinal rugae super- 

 imposed ; these converge inwards and meet in the middle ; a small 

 anterior median area smooth and shining. The anterior half of the 

 mesonotum is also very sparsely and shallowly punctui-ed. Scutellum 

 smooth, shining, coarsely and sparsely punctured. Paraptera longi- 

 tudinally rugose. Epinotum and nodes transversely rugose, the 

 abdomen sculptured more strongly than in the 1/ . Head, excluding 

 the mandibles, as long as wide behind, widest behind, the posterior 

 half of the sides convex, the anterior half concave. The eyes placed at 

 the anterior third, very prominent. Clypeus as in the 11 . Posterior 

 margin of the head shallowly concave, the posterior angles only 

 narrowly rounded. Head hardly wider than the mesonotum, the 

 metanotum slightly projecting. The dorsum and declivity of the 

 epinotum form a single and nearly vertical plane. Epinotal spines, 

 acute, horizontal, divergent, about as long as their basal width and as 

 long as the space between them. Petiole and abdomen as in the % , 

 but larger. Wings yellowish, nervures brownish-yellow, stigma brown. 

 Bulawayo and Victoria Falls, not common. The nest is usually 

 placed under stones. (S.A.M., R.M., G-.A. colls. ; type of £ in my 

 collection.) 



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