A Monograph of the Formicidae of South Africa. 293 



sparsely pilose, hardly pubescent ; legs pubescent. Head subquadrate, 

 longitudinally striato-rugose, the striae divergent on the occiput, 

 between the striae very finely rugulose. Frontal carina not extending 

 beyond the posterior third of the head. Mandibles striate, the 

 margins black, the masticatory margin denticulate, the apex bidentate. 

 Antennae 12-jointed, club 3-jointed and much shorter than the rest 

 of the flagellum. Thoracic sutures entirely obsolete. Thorax obtusely 

 marginate in front, widest in front and thence narrowed gradually 

 backwards. Epinotal spines robust, suberect, acute, divergent. 

 Thorax above longitudinally rugose, the sides closely and obliquely 

 rugose, and also very finely reticulate-rugulose ; 1st segment of 

 petiole pedunculate, the node trapezoidal, truncate behind, transversely 

 rugulose and punctate ; 2nd node transversely ovate, rugulose and 

 punctate ; apical portion of abdomen shining, the base subopaque, 

 microscopically reticulate. 



" ? . 5-5"5 mm. Similar to the ty in colour and sculpture ; the 

 thorax longitudinally striate ; epinotal spines shorter and stouter. 

 Wings hyaline, costal margin testaceous, stigma brown." 



South Africa. 



Var. signattjm, Emery. (Plate VII, fig. 98). 

 Ann. Soc. Ent. France, vol. 63, p. 35, $, 1895. 



" £ . 4 - 5-5 mm. Blackish-brown ; legs, antennae and mandibles 

 castaneous brown, the middle portion of all the femora darker. 

 This form differs from the type of the species by the presence of a 

 well-defined, but not deep, meso-epinotal suture, and by the shape 

 of the nodes. The 1st node, seen from above, is subcorneal, the apex 

 anterior, slightly wider than long ; it has a short, vertical, posterior 

 face, and a vertical anterior face which is convex transversely. The 

 2nd node is not quite twice as wide as long, a little wider than 

 the 1st; below and in front, it has on each side an obtusely triangular 

 tubercle. The basal third of the 1st abdominal segment is very 

 closely rugulose and dull. The epinotal spines are strongly divergent, 

 fairly short, not longer than their basal width. The episternal lobes 

 are shorter than the epinotal teeth. The scape does not reach the 

 posterior fifth of the head." 



Willowmore, Cape Prov. (Dr. H. Brauns.) (S.A.M., R.M., G.A. 

 colls.) 



Race lugtjbre, Forel. 

 Ann. Soc. Ent. Belg., vol. 54, p. 425, £ , 1910. 

 " ^ . 4 - 4-4 - 5 mm. Brownish -black, the mandibles, antennae and 



