A Monograjjh of the Formicidae of South Africa. 257 



without a trace of teeth, only excavated lengthwise, with two elongate 

 and obtuse swellings. Both nodes rounded, wider than long, the 1st 

 pedunculate, tl#2nd nearly twice as wide as the 1st, which is narrow. 

 Abdomen very long, longer than the rest of the body, with a honey- 

 yellow translucency. Legs short. Head glossy, finely reticulate. 

 The rest of the body smooth, shining and with piligerous punctures. 

 Erect hairs very fine, pointed, short and scanty, absent from the legs. 

 Pubescence oblique, somewhat woolly, more abundant than the 

 pilosity and present all over, without, however, being at all dense. 

 Dirty yellow ; head yellowish red ; abdomen pale translucent yellow ; 

 legs and antennae yellow." 



Kooa-Sekgoma, Kalahari. (L. Schultze.) 



A. Traegaordhi, Santschi. 



G-oteborgs K. Vetensk. och Vitterh. Handl., xv, 2, p. 20, £ , 1914. 



" ^ minor. l - 5 mm. Yellow, slightly reddish. Mandibles, clypeus, 

 antennae, tarsi and abdomen yellow. Smooth and shining. Epi- 

 notum, posterior half of mesonotum and the 1st node reticulate, 

 punctate and nearly dull. The smooth areas with a fine and sparse 

 piligerous puncturation. Pubescence fairly exserted and distributed 

 all over the body and the limbs. A few rare erect pilose hairs. Head 

 longer than wide, the sides moderately convex, the hind margin feebly 

 concave. Eyes composed of a single facet, placed a little in front of 

 the middle of the sides. Mandibles with five teeth. Pronotum 

 marginate in front. Meso-epinotal suture deep. Dorsum of epinotum 

 a little convex, wider than long, hardly marginate. The declivity 

 longer, marginate. The junction of the two planes of the epinotum 

 angular, with a very small tubercle, often indistinct, and not dentate 

 as in nosidambo, Forel. First node short, thick at the summit, as high 

 as the length of the joint, with a very small tooth below in front. 

 Second joint globose, wider than the 1st." 



Balgowan and Stamford. Hill, Natal. (Traegaordh.) 



Tribe LEPTOTHORACINI, Emery. 



Genus LEPTOTHOEAX, Mayr. 

 Verb. Zool. Bot. Ver. Wien, vol. 5, p. 431, 1855. 



Characters. 

 $ . Antennae 11 or 12-jointed (12-jointed in our three species), 

 with a distinct club formed of the three apical joints. Mandibles 

 with four or five teeth. Clypeus fairly large. Epinotum armed with 



