A Monograph of the Formicidae of South Africa. 737 



than their greatest distance apart. The scapes strongly incrassate 

 apically, extending beyond the hind margin by about one-fourth of 

 their length. Eyes rather small, feebly convex, placed at the posterior 

 third. Thorax not much narrowed posteriorly. Pronotum very 

 little wider across the shoulders than behind, twice as wide as long, 

 the sides clearly delimited from the rather flat dorsum, the anterior 

 angles or shoulders submarginate and rectangular. Mesonotum con- 

 vex, oval, as long as wide in front. Both thoracic sutures distinct, 

 not deep. Dorsum of epinotum convex transversely, a little narrowed 

 towards the apex, a little longer than the very oblique declivity, 

 which it joins in a very wide angle (175°). Scale of petiole thick in its 

 lower half, much thinner above, the anterior face very convex trans- 

 versely, the posterior face flat and seen from behind ovate, the dorsal 

 edge fairly trenchant. Tibiae strongly compressed or prismatic, the 

 faces canaliculate, armed below with a few short setae. 



$ media, 12*5 mm. Head longer and more trapezoidal than in the 

 2J.j a little longer than wide, one and a half times wider at its widest 

 than across the anterior margin, the sides convergent anteriorly but 

 fairly straight, posterior margin almost straight. Eyes placed a little 

 further back, more convex and relatively larger than in the 2J.. The 

 scapes extend beyond the hind margin by nearly one-third of their 

 length. The pronotum is nearly flat above, longer than in the 2J. or 

 nearly as long as wide, the anterior angles somewhat less acute. The 

 dorsum of the epinotum more oblique, forming with the declivity an 

 almost continuous and low curve. Scale a little lower and thicker. 

 Abdomen usually without glabrous patches. Otherwise like the 2J.. 



$ minor, 10-11 mm. Head and antennae often of a slightly reddish 

 black colour. Head similar to that of the $ media but longer and 

 narrower, longer than wide, hardly one-fourth wider at its widest 

 than across the anterior margin. The sides in front of the eyes 

 straight and convergent anteriorly, fairly convex behind the eyes, 

 the posterior margin straight. Eyes very convex and relatively 

 much larger than in the 2J.. The scapes extend beyond the hind 

 margin by a little more than two-fifths of their length. Pronotum 

 as long as wide, the anterior angles as in the £ media. Abdomen 

 narrower than in the 2J.. Otherwise like the 2J. and $ media. 



$, 16-5-19 mm. Head like that of the. £ minor, but a little less 

 narrowed in front. Pronotum with rectangular shoulders, plainly 

 visible from above. Dorsum of epinotum shorter than the sub- 

 vertical declivity, merging into it by a rapid curve. Scale of petiole 

 thicker than in the 2j., the anterior face more convex from above to 



