A Monograph of the Formicidae of South Africa. 703 



pubescence as in the 2J.. The anterior half of the mesonotum fairly 

 abundantly but shallowly punctured. Head subvertically truncate 

 as in the 2|_, but a little longer than in the latter, the sides moder- 

 ately but distinctly convex, more narrowed in front. Mandibles with 

 8 teeth, the posterior four small and obtuse. Mesonotum and scutellum 

 moderately shining, dorsum of epinotum dull. The latter is trapezoidal, 

 fairly convex transversely, less so longitudinally, two-thirds wider 

 at the base than at the apex, twice as wide as long, the declivity 

 vertical, rounded above, longer than the dorsum. Scale as in the 2J., 

 higher than the petiole is long below. Wings hyaline, nervures and 

 stigma pale yellowish brown. 



<J, (hitherto undescribed), 6*2 mm. Black ; legs and antennae dark 

 brown. Head, thorax and petiole very finely reticulate-punctate, 

 here and there only reticulate, moderately shining. Abdomen finely 

 rugulose and shining. Pubescence and pilosity exceedingly scanty, 

 except on the flagellum which is densely pubescent and punctulate, its 

 1st joint pyriform. Head one-sixth wider across the eyes than long, 

 the sides behind the eyes together with the posterior margin forming 

 a low convexity, the sides in front of the eyes strongly convergent 

 anteriorly. Eyes large, very convex ; the ocelli also large. Clypeus 

 convex transversely, the anterior margin arcuate. Mandibles dull, the 

 apex subacute, edentate. The scape extends beyond the hind margin 

 by three-sevenths of its length. Mesonotum very convex or semi- 

 circular from side to side in front. Scutellum gibbous. Metanotum 

 large, the dorsum and declivity of the epinotum, seen in profile, form a 

 quadrant. Petiole nodiform, subquadrate, with a small tooth on each 

 side near the base. Wings fuscous, nervures and stigma brown. 



Durban. Nesting in hollow stems, the several entrances to the 

 nest guarded by the 2). 2). which close the apertures with the trun- 

 cated faces of their heads. The only nest which I found was not a 

 large one, containing merely two dozen or so ^ and 2J.2J.. 



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



C. aequitas, Santschi. 



Ann. Soc. Ent. France, vol. 88, p. 387, & $, <J, 1919. 



2J., 5-8-64 mm. Black, antennae, (except the last two joints which 

 are piceous), brown, tarsi dark brown, the anterior half or two-thirds 

 of the head reddish or brownish ochreous, the clypeus and irons nearly 

 always darker and ferruginous brown. Mandibles ferruginous. Head 

 dull, closely and evenly reticulate-punctate all over, the sculpture 



