A Monograph of the Formicidae of South Africa. 241 



behind. Clypeus moderately large, without carinae or teeth, convex 

 transversely and lengthwise, the posterior third inserted between the 

 frontal carinae, the anterior margin convex. The frontal carinae are 

 very short, fairly narrow, not diverging much behind ; they are farther 

 apart and the posterior portion of the clypeus is wider than in 

 Solenopsis. The scape of the 11-jointed antennae does not extend back 

 as far as the hind margin of the head, the flagellum similar to that of 

 Solenopsis, but the antepenultimate joint is relatively larger ; the 

 2nd-7th joints of the flagellum small and wider than long, the 8th 

 distinctly larger than the preceding, as long as wide, the 9th large, 

 very little longer than wide, the last joint almost three times as long 

 as the preceding ; the structure of the flagellum being intermediate 

 between that of Monomorium and of Solenopsis. The antennal fossa 

 small. The frontal area small and triangular. The frontal sulcus is 

 very short. The moderately large and feebly convex eyes lie in front 

 of the middle of the head. No ocelli. The posterior margin of the 

 head is straight, but is strongly hollowed out at the occipital foramen. 

 The thorax is like that of Solenopsis, the pro-mesonotal suture hardly 

 defined ; the meso-epinotal suture deep. The dorsum of the epinotum 

 merges by a gentle curve into the declivity. A transversely concave 

 and shallow longitudinal impression begins at the base of the epinotum, 

 widens and passes over into the declivity. The legs of medium length. 

 The petiole is shaped as in Solenopsis, the 1st joint distinctly 

 pedunculate, the ventral lamella simple, the node transverse ; the 2nd 

 joint is wider than the 1st, much narrower in front than behind, 

 somewhat bell-shaped. Abdomen ovate, transversely truncate at the 

 base. 



<j> . 9-5-10 mm. Very shining and pale brown. The pilosity is 

 fairly abundant, particularly on the legs. The adpressed pubescence 

 is absent from the head and thorax, scanty on the abdomen, the ventral 

 surface of the 2nd node of the petiole is densely pilose, the hairs short 

 and exserted. Mandibles coarsely striated, sparsely and strongly 

 punctured. The clypeus is transversely rugose at the sides, smooth 

 in the middle ; the cheeks and inner borders of the eyes longitudinally 

 striate, the frons and vertex sparsely punctured with deep and large 

 punctures, the mesonotum and scutellum polished, with few punctures, 

 the sides of the pronotum and the mesopleura polished ; the concave 

 sides of the scutellum, the metanotum, the sides of the metathorax 

 and of the epinotum more or less striato-rugose, the latter also with 

 fairly abundant punctures bearing short and erect hairs. The anterior 

 upper surface of the finely rugulose and punctured 1st node bears 

 similar hairs, the 2nd node is polished on the upper surface, with a 



