A Monograph of the Formicidae of South Africa. 539 



Race natalensis, Forel. 

 Ann. Soc. Ent. Belg., vol. 54, p. 431, g, ? , £ , 1910. 



$ . 2-2*5 mm. Pilosity longer than in var. rectinota. It differs 

 from that variety as follows : The pronotum is not marginate in 

 front, where it is gradually curved into the neck, not almost vertically 

 truncate as in rectinota. The pro-mesonotum is narrower and longer, 

 as long as wide in front (in rectinota wider in front than long). The 

 anterior face of the 1st segment of the petiole is as long as wide. 

 Otherwise like the type of the species. 



"$. 6-6'7 mm. Scape as in the £ , not reaching the occipital 

 margin. Spines longer than in the type of the species. First 

 node cpuadrate, possibly wider than long. Body more elongate and 

 less squat than in the type of the species. Pilosity shorter. Reddish 

 or slightly brownish-yellow, abdomen more or less brown. Front 

 wing 6 - 3 mm. long, subhyaline, nervures pale. 



" $ . 23 mm. Yellowish-brown. Joints of the flagellum a little 

 longer than wide (a little wider than long in the type-species). Wings 

 and pilosity as in the ? . Otherwise like the type of the species." 



Estcourt, Natal (Wroughton) ; Krantz Kloof, Natal (H. W. B. 

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



Race natalensis, var. bkaunsi, Forel. 

 Rev. Zool. Afric, vol. 1, p. 277, $, 1911. 



<5 . 2 - 6-3'5 mm. Head yellowish-brown, thorax and nodes varying 

 from ochi*eous to reddish-brown-ochreous, abdomen reddish-brown. 

 The puncturation is stronger than in the race, and in the larger 

 ^ ^ the pro-mesonotal suture is clearly indicated by the raised 

 margin of the mesonotum. The epinotal spines are a little longer, 

 the declivity marginate at the sides. First node of petiole a little 

 longer than in the race, distinctly longer than wide. Otherwise like 

 the type of the race. 



Estcourt, Natal (Wroughton). (S.A.M., R.M., G.A. colls.) 



C. inermis, Mayr, race delagoensis, Forel. 



Verh. Zool. Bot. Ges. Wien, vol. 12, p. 766, $ , 1862. 

 (Race) Mitth. Schweiz. Ent. Ges., vol. 9, p. 99, £ , 1894. 



" ^ • 3 , 4-4 , l mm. Mandibles closely and fairly coarsely striate. 

 Head at least as long as wide (wider in the type of the species). 

 Thorax wider, more robust and more deeply constricted than in the 



