A Monograjrfi of the Formicidae of South Africa. 511 



pronotum is less convex at the sides and longer ; it is only twice as 

 wide as long in the middle, excluding the neck (at least two and a-half 

 times in the type of the species). The median carinula of the 

 mesonotum is much more distinct. The dorsum of the epinotum is 

 longer, narrower apically, or about two-thirds wider than long (twice 

 as wide as long in the type-species). The spines are slightly but 

 quite clearly curved inwards. 



$ . 9'6 mm. Black, mandibles, flagellum and legs dark reddish- 

 brown. Pubescence fairly long, scanty everywhere. Exerted pilosity 

 pale yellowish, fairly long and sparse. Head closely and longi- 

 tudinally striate, the striae on the median area of the clypeus 

 converging inwards. Mesonotum and scutellum smooth, shining, 

 very sparsely and shallowly punctured. Dorsum of epinotum 

 strongly rugose transversely. Abdomen and petiole smooth and 

 shining. Head, excluding the mandibles, nearly one-fifth wider than 

 long, the posterior margin straight, the posterior three-fourths of the 

 sides subparallel, the anterior fourth moderately convergent. Thorax 



'h 



Fig. 40. — C Peringueyi, Forel, var. angustior, n.v. 



twice as long as wide across the tegulae. Epinotum unarmed, the 

 dorsum four times wider at the base than long ; the declivity vertical. 

 First node of petiole trapezoidal, two and a-quarter times wider in 

 front than long in the middle, the anterior angles narrowly rounded. 

 The 2nd node feebly grooved postei'iorly, not so wide as the anterior 

 margin of the 1st node. Deflated. 



3. 3'7 mm. Black. Pilosity and pubescence sparser than in 

 the $ . Head very finely striate, chiefly lengthwise, but behind the 

 ocelli radiating outwards, dull. Mesonotum very finely and closely 

 striate or rugulose longitudinally, the scutellum smooth and shining. 

 The whole epinotum rugulose and only slightly shining. Nodes 

 nitidulous and reticulate. Abdomen smooth and shining. Head 

 a little wider than long, subovate, the outline of the posterior half 

 forming a single convexity. Scape nearly as long as the 1st and 

 2nd joints of the flagellum taken together ; these two are a little 

 wider than long, the 3rd as wide as long, the rest longer than wide. 

 In the single specimen before me, the mesonotum has a median 

 impression in front of the hind margin with a semilunar and raised 

 area on each side of it, but this may be only a teratological feature. 



