A monograph of the Formicidae of Sauth Africa. 629 



only a narrow median area and a narrow band in front of the apical 

 margins pale brownish. Mandibles ferruginous, shining, sparsely but 

 strongly punctured, their masticatory margins black; the anterior 

 margin of the clypeus also blackish. Abdomen shining, the rest of 

 the body subopaque. Head as long as wide behind, less narrowed 

 in front, the posterior angles more widely rounded, the posterior 

 margin much less concave (almost straight) than in the type of the 

 species. Eyes placed just behind the middle of the sides. Clypeus 

 more obtusely carinate than in the type of the species. Frontal 

 carinae more convex externally and wider apart behind. Pronotum 

 less convex transversely. Mesonotum a little more compressed, the 

 dorsum of the epinotum wider and distinctly delimited from the 

 sides, (in the type of the species the sides of the epinotum meet 

 above in a very narrow angle, its apex rounded off, so that the 

 actual dorsal face is rendered almost obsolete). Convexity of the 

 thorax, L. = 3 l / 4 H The scale is less convex in front. The vertex 

 of the head, behind the frontal carinae lacks the half dozen or so 

 piligerous punctures which are present in the type species. Posterior 

 tibiae not setose below. Otherwise like the type of the species. 



Estcourt, Natal. (Wroughton, Haviland). 



The description given above is based on specimens collected by 

 Wroughton and named by Dr. Forel himself, from the B.M. and 

 S.A.M. colls. 



Race pictiventris, Mayr. (Plate IX, fig. 153). 



Ann. K. K. N. H. Mus. Wied, vol. 16, p. 28, % £ 1901. 



Qj., 8*5-9 mm. Head, thorax, antennae and petiole dark yellowish 

 red, the occipital lobes of the head paler, the legs dirty ochreous. 

 The pale ochreous (stramineous) colour on the first 3 abdominal seg- 

 ments extends right across, leaving only a narrow preapical blackish 

 brown band on each segment, somewhat angularly widened in the 

 middle; the 4th segment is blackish brown, with a transversely 

 elongate yellow spot on each side, the apical segment blackish brown. 

 Moderately shining, the occipital lobes distinctly so. Pilosity brownish, 

 much less abundant on the abdomen than in the type of the species. 

 Mandibles moderately shining, sparsely and coarsely punctured. 

 Head less emarginate behind than in the type of the species. Clypeus 

 sharply carinate, the lobe rectangular in front. The scapes extend 

 beyond the hind margin by one-third of their length. Frontal carinae 

 more convex externally and wider apart than in the type. Dorsum 

 of epinotum as long as the declivity, the latter steep and fairly 



