316 Annals of the South African Museum. 



epinotum wider than long, sloping steeply downwards to the declivity. 

 Epinotal teeth horizontal. The dorsal edge of the 1st node is very 

 shallowly concave. The 2nd node less angular at the sides than in 

 the $ • Wings tinged with yellow. Otherwise like the £ . 



$ . 35 mm. Dark brown, the head black, the petiole paler, the 

 legs, antennae and mandibles pale yellow. Head dull, very closely and 

 finely reticulate-punctate, with a few striae radiating outwards from 

 the ocellar region. The sides of the thorax and epinotum finely and 

 longitudinally striate and also reticulate-punctate, nitidulous, the rest 

 of the body smooth and shining. Head much wider in front than 

 behind, the posterior margin and sides convex. Scapes hardly reaching 

 back as far as the anterior ocellus. Mandibles small, with 3 or 4 

 teeth. Dorsum of epinotum oblique, merging gradually into the 

 declivity, and twice as long as the latter. First node of petiole not 

 squamiform, about as wide as thick, seen from the side subcuneiforin, 

 hardly wider than high. Second node wider than the first, widest in 

 front, one and a half times wider than long, the anterior margin 

 moderately convex. 



Bulawayo, nesting in sandy soil. 



This differs from the type species, which has not yet been recorded 

 from our region, by the wider 2nd node, the more abruptly convex 

 pronotum, and the coarser sculpture. 



(S.A M., R.M., G.A. colls.) 



Var. flaviceps, n. v. 



^ . 2'8 mm. Head, thorax, and nodes yellow, the head also 

 slightly brownish, abdomen dark brown, legs pale yellow. Apart from 

 the smaller size and the colour, this variety differs from the type 

 of the species as follows. 



The lateral constriction of the thorax between the pro- and meso- 

 notum is much less, almost obsolete. The 2nd node of the petiole 

 has the sides straight, it is more rounded above, the anterior and 

 posterior faces meeting much less angularly than in the type. The 

 sculpture is also weaker, especially on the head, which is longitudi- 

 nally striate rather than rugose. The pilosity is also more abundant 

 on the abdomen. Otherwise like the type of the species. 



Matopo Hills, S. Rhodesia. (S.A.M., R.M., G-.A. colls.), type in my 

 collection. 



Var. mus, n. v. 



^ . 2 - 8 mm Very similar to var. flaviceps, but differing from it in 

 the darker colour of the head and thorax, which is brownish-yellow, 



