676 Annals of the South African Museum. 



$, 9-10 mm. Black, moderately shining, the abdomen more 

 shining and more feebly sculptured than the rest. Microscopically 

 rugulose. Head semicircular behind the eyes, quadrate in front of 

 them. Eyes very convex, prominent, placed at the middle of the 

 sides. The scapes extend beyond the hind margin by four-sevenths 

 of their length. Mandibles long, almost parallel-sided, feebly denti- 

 culate. Clypeus furnished with a transverse row of long ammochaetae 

 as in the £, but the hairs are fewer. Petiole nodiform, the anterior 

 face very oblique or almost dorsal in position and twice as wide as 

 long, semicircular when seen from above. Wings as in the $. 



The colour of this species is somewhat variable, the darker specimens 

 having the head more deeply emarginate than the others, but otherwise 

 not distinguishable. In Emery's description, the colour is described 

 as " testaceous, head rufescent, mandibles, antennae, tibiae, tarsi 

 and the abdomen above fuscous." The specimens from Sawmills, 

 Umgusa River, agree well with this description, those from the other 

 localities are darker. 



Sawmills, Umgusa River and Hillside, Bulawayo, S. Rhodesia ; 

 Willowmore, Cape Prov. (Brauns). 



I have seen only two nests of this species ; both were situated under 

 large stones, and in front of the entrance to the nest there was a 

 large, fan-shaped and levelled mass of excavated earth, ending in 

 a short slope all round, not crateriform as in so many species of the 

 Myrmoturba group. 



(S.A.M., R.M., G.A. colls. ; type of $ in my collection). 



Var. kamae, Forel. 



Schultze, Reise Sudafrika, vol. 4, p. 27, $ minor, 1910. 



"£ minor, 10-11 mm. Nearly black, thorax partly brownish 

 black. Mandibles and anterior margin of the head reddish. Antennae 

 and legs brown. Coxae, bases and apices of the femora brownish 

 yellow. Ammochaetae on the clypeus and mandibles very long and 

 abundant. The transverse shelf on the posterior fourth of the clypeus 

 almost angular (i.e. at its junction with the lower part). Scale 

 higher and less thick than in the type of the species, with a pointed, 

 compressed and trenchant edge above. Head somewhat more 

 elongate, narrower in front than in the type of the species, not clearly 

 wider there than behind. Thorax somewhat more strongly .arched. 

 The dorsum of the epinotum rises from the meso-epinotal suture 

 backwards in a sharp curve and is continued thence as far as the 



