650 Annals of the South African Museum. 



C. caffer, Emery. 

 Ann. Soc. Ent. France, vol. 63, p. 47, %, §. 1895. 



"§ major. Head, thorax and petiole fuscous, base of the 2nd and 

 following abdominal segments with a small spot on each side, flagellum 

 and femora testaceous-ferruginous, mandibles dark ferruginous; dull, 

 scarcely pubescent and most scantily pilose. Head emarginate and 

 widest behind, narrowed in front, the frontal carinae close together, 

 clypeus carinate, produced into a wide truncated lobe, mandibles 

 7-dentate. Dorsum of thorax nearly straight, scale of petiole thick, 

 convex in front and behind, narrowed above ; tibiae moderately 

 compressed, the lower margin setose. 



§ minor. Testaceous, the mandibles, the base and sides of the 

 abdomen darker, the scapes, the middle of the dorsum of the abdomen 

 and the ventral surface of the same fuscous. Head narrowed arcu- 

 ately from the anterior to the occipital margin. Scale thick, nodi- 

 form, acuminate above. 



£ maxima, 46 mm.; head 4*8 mm. long, 4 mm. wide behind, 3 - 7 

 in front; scape 45 mm., posterior femur 5 mm. long. 



§ minima, 9*5 mm. ; head 2*3 mm. long, 4 mm. wide behind and 

 1*3 in front; scape 3 - 5, posterior femur 35 mm. long. 



Makapan, Bechuanaland, (Simon). 



In the shape of the head, this ant recalls certain species of Cam- 

 ponotus of the dorycus group, .... In the $ major, the head is widest 

 right at the back, and its posterior margin is widely emarginate. 

 In the small § g on the contrary, the greatest width is near the 

 mouth ; the head is narrowed a little as far as the eyes, more strongly 

 so behind them as far as the occipital margin, which is narrowly 

 emarginate and sharply angular on each side. The frontal carinae 

 are near together, their posterior extremities hardly more divergent 

 than the anterior. The scale of the petiole is remarkably thick? 

 especially in the small § . . . . The thorax is narrow, its dorsum 

 almost straight in the middle, passing into the declivity of the epi- 

 notum by a wide arc. The whole body is dull, and covered with a 

 close reticulate puncturation, over which are scattered the sparse 

 pubescent punctures, the pubescence decumbent and very short; on 

 the head of the larger specimens the punctures are larger and pit- 

 like, and more abundant on the mandibles. The latter dull except 

 along the masticatory margin. A few large punctures with long 

 hairs. On the abdomen the sculpture becomes almost transversely 

 rugulose .... The legs are dull and finely reticulate, they have only 



