678 Annals of the South African Museum. 



the dorsal edge trenchant. As in the 21, often with traces of transverse 

 brownish yellow bands on the abdominal segments. 



<J, 9-8-10-7 mm. Black ; ends of the tarsi and flagellum (excepting 

 the brown 1st joint), yellowish red. Moustache as in the $ and y. 

 Scale cuneiform, low, emarginate above. Wings as in the $. Man- 

 dibles long, narrow, the masticatory margin very oblique. Head 

 somewhat wider than long, with a straight and wide posterior margin. 

 The nest was in sand, with a crater, the entrance as wide as a finger ; 

 the nest labyrinth not far below the surface." 



Prince of Wales Bay and Steinkopf, (Schultze) ; Choaherib and 

 Ababis, S.W.A. (R. W. E. Tucker). 



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



C. simulans, Forel. 



Loc. cit., p. 28, t>. 



"£, 3-6-3*9 mm. Mandibles 5-dentate, shaped as in mystaceus Em., 

 but with a feebly convex external margin ; the teeth are also relatively 

 smaller, they are shining, almost smooth or very finely shagreened. 

 Clypeus formed exactly as in mystaceus, with the same transverse 

 shelf at the upper fourth and the same ammochaetae. Head trans- 

 versely rectangular, wider than long, a little wider in front than behind, 

 the posterior margin straight. Frontal carinae short, divergent, 

 further apart than in mystaceus. Eyes very large, somewhat behind 

 the middle of the sides, and occupying almost half of the same (clearly 

 longer than their distance from the anterior margin of the head and 

 three times longer than their distance from the posterior margin). 

 The scape extends beyond the hind margin by quite one-third of its 

 length. Near its base and in front it has an obtusely angled or very 

 wide dilatation, in the same position as in C. cuneiscapus, but wider 

 and less produced. Thorax moderately and evenly convex. Dorsum 

 of the epinotum hardly longer than the declivity (much longer in 

 mystaceus). Scale not thick, not cuneiform, trenchant above, slightly 

 inclined forwards. Tibiae entirely cylindrical, with three or four 

 setae on the lower margin. The metatarsi also with numerous 

 spines as in mystaceus. Very shining, exceedingly delicately reticulate, 

 transversely so on the abdomen. There are a few distinct punctures 

 on the head. With exactly the same golden reddish-brown moustache 

 and hairs on the clypeus and mandibles as in mystaceus. On the rest 

 of the body there are only a few yellowish pilose hairs. Tibiae and 

 scapes only with a decumbent pubescence. On the body the pubes- 



