A Monograph of the Formicidae of South Africa. 347 



The head is dull and much more finely striate, the stria,e becoming 

 effaced towards the occiput ; the spaces between the striae are very 

 densely and finely rugulose or reticulate. The mandibles are more 

 strongly striate. The pro-mesonotal suture is faintly indicated, the 

 meso-epinotal suture well defined and deep. The pro-mesonotum is 

 smooth and shining, except the margins, which are feebly punctured. 

 The pronotum has a rounded boss on each side at the posterior corners. 

 The dorsum of the epinotum is depressed, more or less excavated, 

 sparsely and finely reticulate, sparsely rugose at the sides. The 

 epinotal spines are less oblique than in Weitzaeclceri. The summit of 

 the 1st node is more convex transversely and lengthwise, and lacks the 

 impressed lines present in the other species. The 2nd node is also 

 more convex and thicker above, the anterior and posterior faces being 

 separated by a convex dorsal face (this is actually only a continuation 

 in the horizontal direction of the anterior face). In the smaller forms 

 (taken from a different nest to that of the larger), the sculpture 

 extends partly over the mesonotum. 



$ (hitherto undescribed). 45 mm. Thorax paler than in the 9, 

 more castaneous brown. Pronotum widely exposed above at the 

 shoulders, which are rounded. Mesonotum smooth and shining in its 

 anterior third, the posterior two-thirds longitudinally striate ; the 

 scutellum very shallowly striate. Epinotum longitudinally striate at 

 the sides and in the middle of the dorsum ; the latter very steep, 

 almost in the same plane as the declivity. Epinotal spines horizontal, 

 stouter and less divergent than in the ^ . Nodes thinner and wider. 

 Wings tinged with brownish-yellow, nervures and stigma pale yellow. 

 Otherwise like the ^ . 



d (hitherto undescribed). 4'4 mm. Head brownish-black, the 

 area in front of the eyes dirty yellow. Thorax and nodes dark reddish- 

 brown, the sides of the scutellum, the clathrate groove between the 

 latter and the mesonotum, and the metanotum dark yellow. Abdomen 

 piceous. Legs, antennae, and mandibles pale yellow, the femora 

 slightly fuscous. Head and sides of the epinotum dull, the rest of the 

 body shining. Head closely and finely reticulate, with a few striae 

 radiating from the ocellar area. Mesonotum smooth, except in the 

 middle behind the forks of the Mayrian furrows, where it is shallowly 

 and longitudinally striate. Scutellum feebly striate, a space in the 

 middle smooth. Epinotum very finely reticulate, feebly striate at the 

 sides ; the dorsum is as long as the declivity and has a median 

 A-shaped excavation with a dentiform ridge on each side of the same. 

 The 1st node of the petiole more or less cuneiform, the posterior-dorsal 

 face as long as wide ; the 2nd node is half as wide again as the 1st, 



