A Monograph of the Formicidae of South Africa. 285 



lateral ridges of the clypeus are prominent, but not so much so as 

 in longicorne. Frontal carinae subparallel, not raised as in longicorne, 

 and not extending back as far as the middle of the vertex. Scapes 

 extending just beyond the hind margin of the head, the 3rd-6th 

 joints of the flagellum as wide as long, the rest longer than wide. 

 Mandibles with three distinct teeth in front, indistinctly dentate 

 behind, very evenly and longitudinally striate, and with a row of 

 punctures along the masticatory margin. Thorax fairly long, twice 

 as long as it is wide in front. Pronotum with fairly sharp anterior 

 angles, submarginate anteriorly, convex transversely and lengthwise, 

 joining the mesonotum in a gradual curve, not obtusely angularly 

 as in longicorne. Dorsal profile of meso- and epinotum flat and 

 horizontal. Pro-mesonotal suture obsolete, meso-epinotal suture 

 shallow. The thorax is but little constricted at the sides at the 

 meso-epinotal suture. Dorsum of epinotum two and a half times 

 longer than wide, its apical half and the declivity marginate. The 

 declivity is very oblique and about two-thirds the length of the 

 dorsum. Epinotal spines acute, shorter than the space between their 

 bases, directed upwards and slightly backwards, hardly divergent. 

 The episternal teeth are large, not much shorter than the upper 

 spines. The 1st node of petiole, seen from above, is suboval, a 

 little narrower in front than behind, moderately convex transversely, 

 one-fifth longer than wide, the anterior face nearly vertical ; the 

 peduncle is about two-thirds as long as the node and concave below. 

 The 2nd node nearly one-third wider than long, higher behind than 

 in front, not so high as, and only little wider than, the 1st node. 

 Shiloh, S. Rhodesia, in sandy soil. (S.A.M., E.M., G-.A. colls.) 



T. Frenchi, Forel. 

 Bull. Soc. Vaud. Sc. Nat., vol. 50, p. 229, £ , 1914. 



£ . 3-2 mm. Black ; mandibles and legs reddish-brown, the tarsi 

 brownish-yellow. Pilosity fairly long, yellow and sparse, almost 

 absent on the thorax, entirely so on the legs and antennae which 

 are only finely pubescent. Head longitudinally rugose above and 

 reticulate between the rugae ; the sides of the head, the dorsum 

 of the thorax, and the nodes reticulate- rugose. The sculpture is 

 fairly strong in front of the eyes and on the dorsum of the thorax, 

 and the spaces between the reticulations are very finely reticulate- 

 punctate, as also the sides of the thorax. Abdomen smooth and 

 shining, except the baaal fourth which is dull and alutaceous. Head 

 and thorax subopaque. 



