540 Annals of the South African Museum. 



type-species. Tubercle of the mesonotum very distinct. Epinotum 

 with two distinct, broad and blunt teeth. Abdomen distinctly cordate. 

 Glossy and in part somewhat shining, the abdomen even more so. 

 Irregularly, finely reticulate-rugulose and very sparsely punctured 

 (the head strongly, closely and regularly punctured). Epinotum 

 reticulate-punctate; pronotum and back of the head transversely 

 rugulose, the rest of the head longitudinally striato-rugulose. The 

 ventral surface of the 1st node has a small tooth in front. Brownish- 

 black ; mandibles, cheeks, flagellum and articulations dark reddish. 

 Erect pilosity almost entirely wanting. 



" Delagoa (Dr. Liengme)." 



The type- species has a North African distribution. It has the head 

 smooth and shining, sparsely and finely punctured. The epinotum is 

 entirely devoid of teeth or even tubercles. The race delagoensis, of 

 wdiich I possess a co-type, differs very considerably from the type- 

 species. The head, thorax and petiole are dull or very nearly so. 

 .The scapes are much shorter, falling short of the occipital margin by 



Fig. 51. — C. inermis, Mayr, race delagoensis, Forel. 



about the length of the eye. The head is also wider, the posterior 

 margin shallowly concave (straight in the type of the species). The 

 eyes are placed a little behind the middle of the sides of the head. 

 The pro-mesonotal suture is more deeply impressed, and the dorsum 

 of the epinotum widens towards the apex (hardly wider there than at 

 the base in the type of the species) and bears on each side a broad 

 tubercle ending in a minute dentiform point. The 1 st segment of the 

 petiole is trapezoidal, a trifle longer than wide. The node of the 

 2nd segment has a median groove (not so deep as in the type-species), 

 and the discs have rather prominent posterior margins. 



C. Santschii, Forel, var. clymene, Eorel. 



Eev. Zool. Afric, vol. 2, p. 322, £ , 1913. 

 (Var.) Bull. Soc. Vaud. Sc. Nat., vol. 50, p. 337, $ , 1914. 



$ . 3'3-3 5 mm. Black, the club of the flagellum yellowish-red, 

 the tarsi brown. Pilosity absent, the decumbent pubescence very 

 short and sparse, a little less sparse on the abdomen. The whole 

 body very smooth and very shining, only the sides of the mesopleura, 



