574 Annals of the South African Museum. 



the thorax and abdomen, shorter and brownish-white on the head, 

 most abundant on the abdomen and epinotum, oblique and fairly long 

 on the legs and scapes. Smooth and shining, except the meta- and 

 epinotum, which are a little less shining and also coarsely and 

 irregularly rugose, the rugae extending over the declivity. The sides 

 of the epinotum are finely and longitudinally striate and somewhat 

 dull. On the sides of the meso- and metathorax there are 2 or 

 3 very strong longitudinal rugae. The mesonotum, seen from 

 above, is subquadrate, parallel-sided, the anterior margin nearly 

 straight in the middle, not convex as in capensis, i. sp., simplex and 

 convexiuscula, a trifle wider than long. The meso-metanotal and 

 meta-epinotal sutures strongly clathrate. The metanotum is about 

 half as long as the mesonotum and twice as wide as long. The 

 epinotal teeth are raised towards their apices, more divergent than 

 in capensis, directed more outwardly, and projecting over the sides 

 of the epinotum when looked at direct from above. The declivity 

 is longer than the dorsum ; the latter seen from the side is straight. 

 The petiole is as long as its scale is high, both the scale and its 

 posterior peduncle fairly thick. The scale is bidentate above (the 

 teeth narrow and acute), emarginate between the teeth. Abdomen 

 rather large,' high and very convex at the base. 



Nesting under a stone. Hillside, Bulawayo. (S.A.M., E.M., Gr.A. 

 colls.) 



A. egregia, Forel. 



Ann. Soc. Ent, Belg., vol. 57, p. 143, £, 1913. 



^ . 3-3'4 mm. Closely allied to capensis-valiclmscula and possibly 

 only an extreme form of capensis. Black, tibiae and antennae brown, 

 tarsi pale brown, basal three-fourths of the scape ochreous, mandibles 

 reddish-yellow. Pilosity scanty, composed of thin, long and dark 

 brown hairs on the abdomen, somewhat thicker and shorter on the 

 head and thorax. Posterior half of the head with a very sparse, pale 

 and decumbent pubescence. Very shining. The sculpture similar 

 to that of validiuscula but a little stronger, composed of a very fine 

 and altogether superficial reticulation ; a little coarser on the dorsum 

 of the epinotum, which is also duller than the rest of the thorax. 

 The sides of the meso- and metathorax longitudinally striate, the 

 sides of the epinotum rugulose. Head like that of validiuscula. 

 Mesonotum as long as wide, the anterior margin semi-circular ; 

 metanotum as long as wide, quadrate, very little shorter than the 

 mesonotum, with prominent stigmatic tubercles (in validiuscula and 



