A Monograph of the Formicidae of South Africa. 731 



■end behind, the posterior margin about half as wide again as the 

 anterior. The scapes extend beyond the hind margin of the head 

 by one-seventh of their length (by a little more in the smaller 2j. 2J., but 

 not by as much as two-fifths as described by Forel). Median area of 

 clypeus longer than wide, feebly carinate, the anterior margin straight. 

 Mandibles dull, very finely reticulate, sparsely and finely punctured, 

 6-dentate. Pronotum with obtuse but fairly distinct shoulders. 

 Mesonotum very convex transversely. Dorsum of epinotum narrow, 

 almost cristate, much shorter than the declivity which it joins in a 

 wide angle. The median glabrous area on the abdomen very distinct. 

 All the femora strongly compressed, tibiae cylindrical, not setose 

 below. 



In all the specimens before me, (collected at the same time and 

 place as the types of Forel), the eyes are separated from the posterior 

 margin by a distance as great as their own length, not as one-third 

 of their diameter as stated by Forel. Neither are the scapes "almost 

 as slender at the apex as at the base." 



£ media, 8-2 mm. Head trapezoidal, longer than wide. Anterior 

 half or more of the pronotum flat, thereby making the shoulders 

 appear sharper and the lateral margins more clearly defined ; it 

 slopes more steeply downwards and forwards than in the 2J., but, like 

 the latter, the dorsal profile of the meso-epinotum is almost horizontal 

 and straight. 



$ minor, 6-2-7 mm. These differ from both the 21. and $ media in 

 having the front of the head as far as the eyes, and the cheeks below 

 the eyes as far as the posterior angles, clothed with a whitish, oblique 

 and very long pubescence (almost pilose). It should be noted that the 

 degree of abundance of the pilosity in this sub-genus is not a character 

 on which much reliance can be placed, since the hairs are very easily 

 rubbed off, especially the bristly hairs. 



Durban. 



(S.A.M., E.M., G.A. colls.). 



C. GRANDIDIERI, Forel. 



C.E. Soc. Ent. Belg., p. 103, 2L., & 1886. 



The type of the species is confined to Madagascar. The description 

 is included here in order to make the diagnoses of its African forms 

 somewhat clearer. 



"$, 5-8-2 mm. This species, allied to for aminosus Forel, has the 

 general facies of C. novogranadensis Mayr, but differs from it by the 



