A Monograph of the Formicidae of South Africa. 153 



Pubescence whitish, very fine and short. Pilose hairs absent. 

 Very similar to Technomyrmex albipes, but differing in the following 

 structural characters. 



The head is proportionately wider, and is longer than wide ; the 

 frontal carinae are shorter and less divergent posteriorly, the scape 

 is relatively longer. The mesonotum is not highest in the middle as 

 in albipes, but at its anterior margin, sloping thence in a gradual 

 curve to the meso-epinotal suture. The dorsum of the epinotum is 

 longer and narrower than in albipes, being longer than it is wide 

 below, whereas in albipes it is quite as wide below as it is long. 

 The petiole is shorter and narrower. The abdomen widens towards 

 the apex. The eyes are also larger, and the clypeus only feebly 

 sinuate in the middle of the anterior margin. 



? . 4*8 mm. (Hitherto undescribed.) Considerably larger than 

 the $ . Head and abdomen dark brown, clypeus paler. Thorax 

 brownish yellow, prothorax and tegulae a little darker, legs and 

 antennae ochreous. Pubescence and puncturation as in the £ . 

 Head as wide as long, posterior margin straight. Eyes situated in 

 the anterior half of the head, and occupying about one-quarter of the 

 sides of the same. Thorax nearly as wide as the head. Pronotum 

 exposed, mesonotum slightly rounded at the sides and in front, flat 

 above, as long as wide, 4 times as long as the pronotum. Scutellum 

 wider than long. Epinotum very little narrower than the scutellum ; 

 the dorsum is not sharply delimited from the declivity but merges 

 into it gradually. The declivity is not so steep as in the $ . The 

 abdomen is nearly as long as the head and thorax together. The 1st 

 segment is nearly twice as long as the 2nd, and one-third wider than 

 long. There are a few black erect hairs on the 3rd and 4th 

 segments, and some paler ones on the clypeus. 



" $. 4-7 mm. Head and thorax rusty brown ; abdomen brown. 

 Legs and mandibles yellowish. Otherwise like the £ . Wings 

 slightly tinged with brown, with a single cubital and a single closed 

 radial cell." 



The $ $ which I have taken here with the $ $ , do not attain to 

 this size, being 3 mm. long. The scape is as long as the first 4 

 joints of the flagellum, and extends back just a little beyond the 

 occipital margin. The $ of this species is very similar to that of 

 Technomyrmex albipes, but is smaller and differs in the following 

 details. 



The head is longer than wide, the posterior angles more 

 prominent. The antennae are longer, extending back as far as the 

 base of the 2nd abdominal segment. The 1st joint of the flagellum 



