A Monograph of the Formicidae of South Africa. 457 



Race messalina-, var. Poweri, Forel. 

 Bull. Soc. Vaud. Sc. Nat., vol. 50, p. 241, !/,§?, 1914. 



%. 6-6 - 5 mm. Colour lighter than in nexa, especially on the 

 ead. The sides of the latter are more convex and the transverse 

 impression of the mesonotum much shallower or almost obsolete. 

 Otherwise like var. nexa. 



5 • 2 "5-2 6 mm. Larger than var. nexa and of a paler colour. 

 The 2nd node of the petiole is wider, with the sides sometimes 

 produced in the middle into small, subacute cones. The reticulate- 

 punctate sculpture of the meso- and epinotum is finer than in nexa. 



Kimberley (Brother J. H. Power). (S.A.M., R.M , G.A. colls.) 



P. Schultzei, Forel. 

 Schultze, Eeise Siid. Afrika, vol. 4, p. 9, 1/, $ , $ , $ , 1910. 



" 1/ . 5-6 mm. Mandibles striate and punctate, partly smooth 

 towards the apex. Head 215 mm. wide and 2 - 4 mm. long, excluding 

 the mandibles, rectangular, the sides nearly straight, somewhat 

 narrower behind than in front, deeply excised behind so as to form 

 a hemisphere on each side. The occipital emargination is acutely 

 angular at the apex and is continued into the occipital groove; the 

 latter is also continuous with the frontal groove. Eyes small, almost 

 flat, placed in the anterior fourth. The short scape extends back just 

 to the middle of the head, and when directed outwards hardly extends 

 beyond the lateral margin. Clypeus carinate, feebly emarginate. 

 Frontal carinae short, straight and divergent. Pronotum strongly 

 arched, bearing above and below very blunt and indistinct promi- 

 nences. Mesonotum with a transverse impression at the posterior 

 third and behind it a transverse torus, beyond which the surface falls 

 steeply to the dorsum of the epinotum, which is flat lengthwise. 

 The latter is somewhat longer than wide, channelled along its length, 

 with two small raised margins. Epinotal teeth acute, triangular, 

 shorter than the interval between them ; the declivity transversely 

 rugulose, as long as the dorsum. Dorsal edge of the 1st node 

 almost trenchant and emarginate ; 2nd node twice as wide as long, 

 produced at the sides into two long and pointed teeth. Fairly 

 abundantly punctured all over with piligerous punctures. Head dull, 

 reticulate-punctate, and longitudinally striate in front, shining and 

 shallowly reticulate behind. Thorax irregularly striate ; the disc of 

 the pronotum nearly smooth ; 2nd node transversely rugulose. 

 Abdomen fairly smooth. The hairs of the scapes and body short, 



