A Monograph of the Formicidae of South Africa. 15 



and longer than in Peringueyi or cribrinodis. The whole body sub- 

 nitidulous, the head above, thorax, petiole, and 1st abdominal segment 

 closely and coarsely punctured. The punctures on the head are 

 smaller and more regular than elsewhere ; the cheeks below the eyes 

 are smooth and impunctate. The puncturation of the thorax becomes 

 coarser towards the posterior end. The punctures of the petiole and 

 1st abdominal segment are large and deep, but strongest on the 

 petiole. The declivity of the epinotum, and the anterior and 

 posterior faces of the petiole are smooth and shining. The 2nd 

 abdominal segment is evenly but sparsely punctured, the punctures 

 being smaller than those on the head ; the margins of the remaining 

 abdominal segments, the scape of the antenna and the legs sparsely 

 punctured. The head is a little longer than wide, a little narrower 

 in front than behind, with the sides moderately convex and the 

 posterior margin straight. The eyes, situated in the middle of the 

 sides of the head, are more convex than in C. Peringueyi. The 

 mandibles are very finely denticulate on the masticatory margin. 

 Antennae 12-jointed, the scape strongly incrassate towards the apex 

 and not reaching back quite as far as the posterior margin of the 

 eyes. The one-jointed club is more globose and comparatively 

 larger than in our other species, and is as long as the 2-10 joints of 

 the flagellum together ; the latter are twice as wide as long, and the 

 1st joint is as wide as long. The angles terminating the genal 

 carinae are more prominent, but otherwise the characters of the 

 head are similar to those of C. Peringueyi. The thorax is flatter 

 above than in that species, and much more distinctly wider behind 

 than in front. The declivity of the epinotum is nearly vertical, 

 strongly margined above, less strongly at the sides, the junction of 

 the dorsal and lateral margins being produced into a small and 

 inconspicuous angle on each side. The petiole is slightly wider 

 behind than in front and moderately convex above from side to side; 

 the sides are almost straight or only feebly convex, the anterior and 

 posterior faces vertical, the anterior dorsal margin straight, the 

 posterior margin above bisinuate so as to form a median and two 

 lateral rounded angles. The first abdominal segment is nearly half 

 as wide again as long, the 2nd segment as wide as long. Otherwise 

 like C. Peringueyi. 



2 . 1 mm. Similar to the $ except for the usual sexual differences. 

 The pro-mesonotal suture is unusually angular, so that the mesonotum 

 and scutellum together, seen from above, have the outline of a lozenge. 

 The mesonotum is strongly but sparsely punctured, smooth, and 

 shining between the punctures. The dorsum of the epinotum is 



