A Monograph of the Formicidae of South Africa. 695 



two-fifths longer than wide, the eyes feebly convex and placed at the 

 posterior third. The scapes extend beyond the hind margin of the 

 head by half their length. Otherwise like the 2J_. 



$, 12 mm. Colour, sculpture and pubescence as in the 2J.. Meso- 

 notum in front and the scutellum fairly smooth and shining. Head 

 only very little wider behind than in front, the posterior margin 

 straight, the sides almost straight or only feebly convex, one-fifth 

 longer than wide. Dorsum of epinotum longer than the declivity, 

 the latter subvertical. Wings brownish ochreous. Otherwise like 

 the 2[. 



Partial to hot and sandy localities. Ababis, S.W.A. 2J., $, ?. 

 (R. W. E. Tucker) ; Natal, (Marley) ; Mafeking. 



The examples from Ababis have a much darker red colour on the 

 head and thorax than the others, and in the 2[ and $ have an elongate 

 longitudinal streak of reddish ochreous on each side of the 2nd 

 abdominal segment. However, the increasing intensity and extent of 

 the red coloration is what one would expect in eremitic forms, and does 

 not appear to me in this instance to merit separation as a variety. 



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



Race Vestitus, var. pectita, Santschi. 

 Rev. Zool. Afric, vol. 1, p. 212, », $, 1911. 



21., 8-5-9*5 mm. Head very dark reddish brown, tibiae, tarsi, 

 antennae, mandibles and anterior margin of the clypeus more or less 

 ferruginous, the apical third of the tibiae almost brown, the rest of the 

 body blackish brown. Pubescence of the abdomen like that of the 

 race. Dorsum of epinotum feebly concave near the base ; abdomen 

 ovate-lanceolate and more pointed at the apex than in the race. 

 Otherwise like the type of the race. 



£ minor, 6-5 mm. Colour etc. as in the 2|, but the scapes reddish 

 brown with the basal fourth reddish ochreous, the mandibles and 

 anterior margin of the head also reddish ochreous, the posterior 

 tibiae brown and ferruginous only near their bases. The pronotum 

 is slightly flattened above, less convex than in the ^ of the race. 



$, 10-11 mm. Black ; mandibles ferruginous, flagellum and tarsi 

 very dark brown. The junction of the two faces of the epinotum less 

 arcuate, the scale of the petiole thinner, the dorsal edge less rounded, 

 the abdomen narrower in proportion to its length and more pointed 

 at the apex. Otherwise like the $ of the race. 



Bulawayo, Bembesi, S. Rhodesia. 



