666 Annals of the South African Museum. 



in the middle. Mandibles 6-dentate, shining, shallowly and sparsely 

 punctured. The scapes extend beyond the hind margin by one- 

 third of their length. Pronotum less convex than in emarginatus, 

 the whole thorax narrower than in that species, the mesonotum 

 much narrower behind than in front. Metanotum indistinct or 

 obsolete. Dorsum of the epinotum only slightly oblique, feebly 

 convex lengthwise, narrow, twice as long as the oblique declivity. 

 Scale of petiole cuneiform, the posterior face flat and a little longer 

 than the convex anterior face, the dorsal edge hardly trenchant. 

 Colour ochreous, the thorax and abdomen brownish yellow. 



9, 9 mm. Head dark ochreous, the anterior angles, the basal half 

 of the clypeus and the vertex more or less brown. Thorax brown, 

 the scutellum more or less ochreous. Petiole dark ochreous, abdomen 

 dark brown, the 1st segment with a narrow, transverse and dull 

 ochreous streak at the middle of each side. Legs ochreous, tarsi and 

 antennae ferruginous. Epinotum subopaque, the rest of the body 

 fairly shining. Sculpture as in the %, the meso- and epinotum 

 fairly strongly rugulose, the mesonotum also sparsely but strongly 

 punctured. Head like that of the 2|_, but as wide in front as behind, 

 the posterior margin feebly convex. Dorsum of the thorax fairly 

 flat, the dorsum of the epinotum very little lower than the rest. 

 Mesonotum one-fourth longer than wide ; pronotum slightly visible 

 from above. Dorsum of epinotum two and a half times wider at 

 the base than long, slightly convex lengthwise, the meta-epinotal 

 suture deeply impressed. Declivity of the epinotum subvertical, one- 

 third longer than the dorsum. Scale of petiole cuneiform, both faces 

 flat, the dorsal edge trenchant, as high as the whole petiole is long. 



Abdomen oblong, the sides feebly convex. Dealated. Otherwise 

 like the %. 



Hillside, Bulawayo and Nyamandhlovu, S. Rhodesia. Nesting in 

 sandy soil. The entrance to the nest is a very small hole, rarely 

 more than 3 mm. wide, without any excavated material surrounding 

 it, and therefore not easily seen. The colonies are small, rarely 

 comprising more than 18 individuals. This ant is a very nimble 

 insect, and never appears above ground during broad daylight, but 

 forages after sunset. 



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



C. HAVILANDI, n. sp. 



QJ-, 8 mm. Head piceous, the extreme posterior angles ochreous. 

 Thorax reddish ochreous, abdomen ochreous and becoming darker or 



