706 Annals of the South African Museum. 



although on account of the colour of the truncated area of the head 

 matching more or less the colour of the soil, it is very probable that it 

 does do so. 



Hillside, Bulawayo. 2J.2J., $£ and several winged $$ and $$ in 

 one nest. 



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



C. Brookei, Forel. 

 Bull. Soc. Vaud. Sc. Nat,, vol. 50, p. 259, %, & 1914. 



2|, 6-8-7 mm. Head piceous, thorax and abdomen more or less 

 dark brown or brownish black. Legs, flagellum and base of the 

 scapes brownish ochreous. Mandibles dark ferruginous. Head 

 delicately reticulate-rugulose, the anterior third more strongly 

 sculptured, rather reticulate-punctate and fairly abundantly pilose, 

 the hairs short, erect, blunt and yellowish. Thorax finely rugulose 

 and feebly shining. Abdomen and scale transversely rugulose and 

 shining. The pilosity and pubescence very short and sparse on the 

 thorax and abdomen. Head subrectangular, one-fifth longer than 

 wide, distinctly narrowed in front, the sides moderately convex, the 

 posterior margin straight, the front of the head steep but not truncate. 

 Median area of clypeus trapezoidal, about as long as wide, the anterior 

 margin straight and not produced, feebly impressed transversely 

 just behind the anterior margin. Mandibles dull, closely and finely 

 striate, with a few large and deep punctures, fairly convex externally, 

 6-dentate. Frontal area lozenge-shaped, wider than long. Frontal 

 oarinae not wider apart than they are long. Scapes arcuate over the 

 basal half, extending a little beyond the hind margin. Eyes feebly 

 convex, placed nearly behind the middle of the sides. Thorax feebly 

 convex lengthwise, metanotum short and indistinct, pro-mesonotal 

 and meso-epinotal sutures moderately distinct. Thorax highest at 

 the base of the epinotum. The dorsum of the latter a little shorter 

 than the fairly steep declivity, the junction of the two faces obtusely 

 angular. Scale thin, feebly convex transversely in front, flat behind. 

 Tibiae cylindrical, not setose below. 



y media, 6'8 mm. Reddish brown (burnt umber), the anterior 

 third of the head paler, the abdomen brown, legs and antennae 

 reddish ochreous. Seen from the side, the head is equally convex 

 in front and behind. Sides of the head less convex than in the 8 

 minor, the posterior margin straight or feebly concave. Otherwise 

 like the £ minor. 



