458 Annals of the South African Museum. 



pointed, yellowish and exserted, on the tibiae decumbent. Yellowish- 

 red; mandibles and clypeus brown. Abdomen and scapes brownish- 

 yellow, legs and nagellum yellowish (the abdomen is more yellowish 

 in front and browner behind). 



" $ . 2-2*2 mm. Mandibles sculptured as in the 1/ , armed with two 

 sharp teeth in front and about six distinct but smaller ones behind. 

 Head as wide in front as long, narrower behind, the occipital margin 

 convex. The scape extends beyond the occipital margin by one- 

 third of its length. Eyes convex, fairly large. Mesonotum without 

 a transverse torus, only a very wide and shallow transverse impression 

 present. Posterior lateral angles of the pronotum obtuse. Meso- 

 epinotal suture strong. Epinotum almost unarmed, with only two 

 very small tubercles ; the dorsum convex, a little longer than the 

 declivity. First node not emarginate above, the 2nd longer than 

 wide, wider behind, without lateral teeth. Puncturation as in the 1/ . 

 Posterior half of the thorax dull and finely reticulate ; head shallowly 

 reticulate, reticulate-rugulose in front. Otherwise shining and fairly 

 smooth. Pilosity as in the % , but more oblique on the scapes and 

 tibiae. Head brown, except the front part, which is brownish-yellow 

 like the rest of the body. 



" $ . 7*5 mm. Head wider than long, rectangular, behind widely 

 and shallowly emarginate and wider there than in front. The scape 

 reaches the posterior third of the head. Otherwise like the 1/, 

 mandibles included. Thorax somewhat narrower than the head. 

 Epinotum with two short spines, but little longer than their basal 

 width. Petiole, etc., as in the %. The whole head almost dull and 

 longitudinally rugose as far as the occiput, marked with three brown 

 longitudinal stripes. Sculpture, pilosity and colour otherwise like 

 that of the 1/ . Clypeus and mandibles rather yellowish-red. Wings 

 pale yellowish, the nervures and stigma pale. 



" <$ . 48 mm. Mandibles quadridentate. Clypeus carinate, not 

 emarginate. Head somewhat longer than wide. Epinotum unarmed. 

 Colour, pilosity and sculpture as in the ^ , but the bands on the 

 mesonotum and the wings as in the $ . The yellow colour is a little 

 brighter than in the ^ • 



"Kalahari, between Kooa and Sekgoma, and between Kgokong and 

 Kang (Schultze)." 



Var. gwaaiensis, Forel. 

 Ann. Soc. Ent. Belg., vol. 57, p. 129, 1/, £ , 1913. 

 " 1/ . 6-6'6 mm. Very similar to the type of the species, having 

 almost exactly the same colour, size, and rectangular, parallel- sided 



