A Monograph of the Formicidae of South Africa. 287 



feebly and longitudinally striate on eacli side, hardly carinate, the 

 anterior margin straight. The frontal carinae are short and parallel ; 

 the scape of the antenna short, extending' back hardly as far as the 

 posterior third of the head ; the club of the flagellum thin ; the 1st 

 joint of the flagellum not longer than the 2nd, 3rd and 4th taken 

 together ; 3rd-8th joints about as long as wide ; all the joints of the 

 club much longer than wide. Mandibles shining, coarsely striato- 

 punctate, quadridentate. Thorax moderately constricted at the meso- 

 epinotal suture, which is deeply impressed and large. The dorsal 

 profile of the pro-mesonotum is very convex ; that of the epinotum 

 flat, sloping posteriorly. The dorsum of the epinotum is broad, 

 almost as wide as long, and a little less than half as long as the pro- 

 mesonotum. The declivity is almost vertical, the brow very shallowly 

 impressed in the middle. The peduncle of the 1 st joint of the petiole 

 nearly as long as the node, the latter as wide as long, not higher than 

 the 2nd. The 2nd node is a little wider than the 1st, wider than long, 

 narrowed behind, subglobose. 



^ . Minima, 1'8 mm. Similar to the $ maxima, except in the 

 following characters : The colour is slightly paler ; the head is longer, 

 quite one-quarter longer than wide, the sides almost straight or very 

 feebly convex ; the anterior angles of the head not striate ; the scape 

 longer, extending well beyond the posterior third of the head; the 

 3rd-8th joints of the flagellum distinctly wider than long. 



5 . (Hitherto undescribed.) 8 mm. Head and antennae reddish 

 yellow, legs yellow, the rest of the body reddish browu. Smooth and 

 shining. Pilosity as in the ^ , but there are some' short pubescent 

 hairs on the abdomen intermixed with the pilosity. Head sub- 

 quadrate, coarsely punctured, and striate, the striae rather feeble 

 on the vertex, and converging behind at the ocellar region. The eyes 

 are large, placed just in front of the middle of the sides. The ocelli 

 are set far back, the posterior margin of the Jiead subtruncate behind 

 the posterior ocelli. A median longitudinal sulcus extends from the 

 posterior angle of the clypeus to the anterior ocellus. Pronotum 

 hardly exposed above. Mesonotum convex and narrow in front, one 

 third longer than wide. Dorsum of epinotum short, passing by a 

 steep curve into the vertical declivity. First joint of petiole with the 

 peduncle shorter than in the ^ ; the 2nd node less rounded ; the 

 sides parallel and not convex ; subquadrate. Abdomen oblong, as 

 long as the thorax and nodes together. Wings slightly yellow, the 

 nervures yellow, the stigma brownish yellow ; 1 cubital cell. 



£ . (Hitherto undescribed.) 4T mm. Black; antennae, man- 

 dibles and tarsi flavous ; femora and tibiae brown. Smooth and 



