A Monograph of the Formicidae of South Africa. 151 



long, the rest longer than wide, apical joint as long as the two pre- 

 ceding taken together. Frontal carinae rather wide apart and 

 divergent posteriorly. Eyes comparatively large, situated in the 

 front half of the head. Thorax very similar in shape to arnoldinus ; 

 pronotum not so wide as the head, and not much wider than long, 

 pro-mesonotal suture distinct. Mesonotum longer than wide, rising 

 from in front towards the middle and thence sloping down to the 

 meso-epinotal suture. Dorsum of epinotum about one-quarter to 

 one-third the length of the declivity; the latter is widest below, 

 rounded above, the lateral margins rounded but fairly distinct. 

 Abdomen less convex transversely above than in arnoldinus, and 

 less pointed towards the apex. Petiole oval, widest in the middle, 

 and hidden by the abdomen which overhangs it. 



$ . 3 - 2 mm. The eyes occupy at least one-third of the sides of the 

 head, ocelli small and set far back. Seen from above, the pronotum 

 is almost hidden by the large mesonotum which is as wide as long, 

 convex in front, flat or slightly concave in the middle behind ; the 

 scutellum is about half as long as the mesonotum. The dorsum of 

 the epinotum is almost obsolete, and the declivity less oblique than 

 in the $ , and not so narrow above. Wings very pale, nervures 

 almost colourless, stigma very faintly tinged with yellow. Other- 

 wise resembling the $ , but the body is a little duller. 



3 . 3 mm. Colour of the $ , legs, antennae and mandibles 

 yellowish, the femora darker except at the apex. Head much wider 

 than long, and wider in front than behind, posterior margin slightly 

 concave. The eyes large, occupying nearly the anterior half of the 

 sides of the head ; ocelli larger than in the ? . Clypeus shorter than in 

 the $ , more convex transversely, the anterior margin almost straight.. 

 Mandibles large, coarsely punctured and shining, the masticatory 

 margin distinctly dentate. The scape is not as long as the long 

 diameter of the eyes, about as long as the 1st and 2nd joints of the 

 flagellum together. Flagellum filiform, densely pubescent, 1st joint 

 as wide as long, the rest longer than wide. The antennae extend 

 back as far as the brow of the epinotum. The thorax is similar to 

 that of the ? , but the mesonotum is a little wider, and the scutellum 

 shorter and more prominent ; the parapsidal sutures well defined. 

 The dorsum of the epinotum is longer and more convex transversely 

 than in the ^ , and the slope of the declivity is less abrupt. The 

 petiole is much rounder and wider above than in the $ or $ . The 

 genital armature is very large, and more or less exserted. Wings as 

 in the $ . 



Bulawayo ; common in moist places under stones, etc. Durban. 

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



