A Monograph of the Formicidae of South Africa. 191 



wide and deep depression. Dorsum of epinoturn also tuberculate 

 near the base. Epinotal spines large, long, and divergent. 1st node 

 of petiole bispinose above ; 2nd node wider than long, the anterior 

 angles rounded but strongly dilated. Middle and hind legs without 

 calcaria, all the femora swollen in the middle ; last tarsal joint very 

 large, as" long as the 2nd, 3rd, and 4th taken together, and bearing 

 strong claws. 



$ . Antennae 12-jointed. Eyes not large, 3 well- developed ocelli. 

 Frontal carinae long, and forming a more distinct scrobe than in the 

 ^ max. Pronotum very short in the middle ; meso- and epinoturn 

 of the usual form, and without tubercles or spines ; dorsum of epi- 

 noturn very short, the declivity vertical. 1st node of petiole with the 

 spines of the $ represented only by two broad tubercles. Anterior 

 wing with 1 cubital, and 1 marginal, and a closed radial cell. 



$ . Mandibles very short, thick, dentate. Posterior margin of 

 head raised to form a collar. Clypeus carinate ; frontal carinae 

 widely divergent. Eyes small. Scape short. Thorax and nodes 

 without spines or tubercles. Wings as in the $ . 



A. Mocquerysi, Andre, var. curvispina, Forel. 

 Rev. d'Ent., vol. 8, p. 227, $ , 1889. Variety, Deutsch. Ent, Zeitsch., 



p. 311, 1911. 



£ . 4 - 2-8 mm. The largest $ $ differ from the media and 

 minima only by the longer frontal carinae, which are expanded out- 

 wards so as to form, above the eyes, an ill-defined scrobe. Head 

 dark red, thorax piceous or piceous red, petiole, abdomen and legs 

 black, antennae reddish brown, margins of the mandibles, clypeus and 

 frontal carinae brown. Abdomen, legs, and antennae with a very 

 sparse, microscopical pubescence, a little longer on the antennae ; the 

 rest of the body glabrous. Legs shining, disc of pronotum and 

 abdomen very slightly shining, rest of the body dull, except the meso- 

 notal tubercles in the £ maxima. Head finely reticulate, with rather 

 irregular and longitudinal rugosities superimposed, which are strongest 

 in front and on the vertex, and become feebler between the eyes and 

 the posterior angles. Neck, sides of thorax, epinoturn, sides and 

 posterior dorsal faces of the nodes reticulate. Dorsum of pro- and 

 mesonotum longitudinally and somewhat irregularly rugose, the 

 rugosities diminishing in front of the mesonotal tubercles, which are 

 more or less smooth and shining. Abdomen very finely and evenly 

 reticulate. Head very convex above and high, from apex of closed 

 mandibles to the middle of the occipital margin as long as wide, 



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