538 Annals of the South African Museum. 



delimited declivity. Epinotum marginate at the sides, the margins 

 being continued along the inner side of the spines ; the latter one- 

 third as long as the interval between their bases, divergent, oblique 

 and slightly compressed. Excepting a very small and transversely 

 concave face at the extreme base, the whole of the upper surface of 

 the epinotum forms one continuous plane. First segment of petiole 

 subquadrate, the slanting dorsal face one-third wider than long, the 

 anterior angles very slightly rounded ; node of 2nd segment sub- 

 globose, as long as wide, without a median groove or posterior 

 emargination. 



$ . 7'9 mm. (hitherto undescribed). Length of front wing 7"8mm. 

 Head pale yellowish-brown, thorax, petiole, legs, antennae and man- 

 dibles dull ochreous, the scutellum, base of mesonotum and declivity 

 of epinotum more or less brownish-yellow, abdomen brown, paler 

 near the base. Legs, antennae and abdomen with thin, oblique and 

 pale yellow hairs ; head, thorax and petiole with fairly abundant erect 

 hairs, which are long and coarse. Head nitidulous, longitudinally 

 striate and rugulose between the striae, with a few large and shallow 

 punctures. Mandibles shining, feebly striate, sparsely and coarsely 

 punctured. Mesonotum and scutellum smooth and shining, very 

 sparsely but strongly punctured: Dorsum and sides of epinotum 

 dull and longitudinally rugose, the declivity and the petiole dull and 

 rugulose. Abdomen smooth and shining, finely punctured. Head 

 nearly as long as wide behind the eyes, the posterior margin convex. 

 Eyes large, convex and prominent, occupying a third of the sides. 

 Median area of clypeus smooth and excavated lengthwise in the 

 middle. Frontal area and sulcus distinct. Head, excluding the 

 eyes, very little wider than the thorax across the tegulae. Thorax 

 fairly convex from side to side and in front, a trifle wider than long. 

 Scutellum a little wider than longer, not much narrowed behind. 

 Dorsum of epinotum very short, armed with a blunt, horizontal and 

 triangular tooth on each side. Declivity vertical, not marginate. The 

 vertical anterior face of the 1st segment of the petiole is a little 

 longer than wide, parallel- sided, the anterior angles rounded, the 

 posterior angles surmounted by a small vertical tooth. Second node 

 wider than the 1st, semicircular when seen from above (the convexity 

 posterior), the anterior angles subacute, without a median groove or 

 posterior emargination. Wings deeply tinged with yellow, the nervures 

 and stigma brownish-ochreous. 



(S.A.M., E.M., Gr.A. colls. ; type of ? in my collection.) 

 This species is fairly common, always nesting in Rhodesia under 

 stones, very often in close proximity to the nests of termites. 



