A Monograph of the Formicidae of South Africa. 533 



very smooth, shining, finely and sparsely punctured. Epinotum faintly 

 rugulose above and at the sides, the declivity smooth and shining. 

 Petiole and abdomen smooth, shining, very minutely and sparsely 

 punctured. Head subquadrate, as long as wide behind, slightly 

 narrowed in front, the posterior angles narrowly rounded, the hind 

 margin straight. Frontal area well defined, longitudinally striate. 

 Head very little wider than the thorax across the tegulae. Scutellum 

 half as long as the mesonotum. The dorsum of the epinotum very 

 short, joining the vertical declivity in a very short curve. First 

 segment of petiole subquadrate, a little wider in front than behind, 

 nearly one- third wider than long, the anterior two-thirds semicircularly 

 bevelled. Second segment subglobose, a little wider than long, the 

 posterior margin feebly emarginate in the middle. Dealated. 



Somabula, S. Rhodesia; in a gall, 1 $,14 £ $. (R.M., a. A. 

 colls. ; type of $ in my collection.) 



Race latro, Forel. 

 Schultze, Reise Siid-Af rika, vol. 4, p. 6, £ , 1910. 



" <$ . 33-3 - 7 mm. Like the type of the species, but larger. 

 Entirely yellowish-brown. The 1st segment of the petiole wider than 

 long, feebly arcuate in front (in the type of the species as long as 

 w T ide, the anterior margin straight). 



" Between Kgokong and Rang, Kalahari (Schultze) ; in gall-like 

 swelling on the branches of an Acacia, in company with Aphides." 



C. TEANSVAALENSIS, Forel. 



Mitth. Schweiz. Ent. Ores., vol. 9, p. 96, £ , 1894. 



"$. 2'7-2 - 8 mm. Mandibles smooth, shining, quadridentate. 

 Clypeus fairly flattened, impressed in the middle anteriorly. Head 

 rectangular, with the angles rounded, somewhat wider behind. Eyes 

 large, placed at the posterior third. ' Club of the antenna 2-jointed ; 

 the scape reaches the posterior margin of the head. Pronotum fairly 

 distinctly marginate at the sides, with a little longitudinal carina in 

 the middle. Pro-mesonotal suture barely visible. Mesonotum without 

 a median carina, marginate at the sides behind, the declivity short 

 and oblique. Meso-epinotal suture not deep. Dorsum of epinotum 

 marginate, wider behind than in front. Epinotal spines short. 

 First segment of petiole, seen from above, almost quadrate, higher 

 behind than in front, with 2 quite small and blunt denticles or 

 corners behind, below toothed in front, the tooth short, thick, obtuse 



