A Monograph of the Formicidae of South Africa. 39 



of the clypeus with a few small punctures ; mandibles very finely 

 and sparsely punctured ; depressed area below the antennal sockets 

 very finely striate. Pronotum above rugulose ; mesonotum with 

 about 15 large punctures on each side, the central longitudinal area 

 impunctate. The pleurae, femora, tibiae, and abdominal segments 

 very sparsely and finely punctured. 



The pilosity consists of yellow hairs arising from the punctures, 

 rather short on the thorax and vertex of head, longer on the abdomen 

 and node of petiole. There is a long hair on each side of the middle 

 of the clypeus. 



Head seen from the side, nearly flat above, truncate behind and in 

 front. Seen from above, the head is wider behind than in front, the 

 posterior angles very rounded. 



Mandibles very convex longitudinally, more than two-thirds the 

 length of the head, and with the masticatory margin almost smooth. 

 Clypeus transversely impressed behind the straight anterior margin, 

 raised in the middle (the raised portion forming a vertical and sub- 

 quadrate area, shining and punctured), produced backwards between 

 the frontal carinae as far as the beginning of the frontal sulcus, 

 which is long and deep and ends abruptly in the middle of the 

 vertex. The frontal carinae much widened anteriorly but not lobed. 



Scape about as long as the mandibles, considerably flattened 

 dorso-ventrally ; flagellum 11 -jointed, not quite so long as the head 

 and mandibles together, 1st joint nearly as long as the 2nd, 3rd 

 and 4th together, 2nd joint very short, 2nd to 8th joints wider than 

 long, apical joint as long as the two preceding together. Eyes and 

 ocelli absent. 



Pronotum with a raised margin anteriorly, the region between 

 the latter and the neck, vertical. Seen from above, the pronotum 

 has a crescentic outline, obtusely pointed in the middle in front. 

 Mesonotum twice as long as the pronotum, with a raised margin in 

 front, and at the sides anteriorly. The dorsum of the epinotum is 

 depressed and saddle-shaped anteriorly and raised into a hump 

 posteriorly, but the declivity also enters partly into the formation of 

 the latter. The petiole is elongate, with a minute lateral tooth on 

 each side of the extreme base ; the node is slightly excavated and 

 sub-vertical in front, very convex above and at the sides, vertical 

 behind. The ventral lamella is produced at its anterior third into a 

 short, sharp spine, pointing forwards. The node does not rise 

 higher than the epinotum. 



Abdomen ovate, the 1st segment sub-truncate in front, and one a 

 half times as long as the 2nd ; the constriction between these two 



