A Monograph of the Formicidae of South Africa. 395 



and its varieties ; they are directed outwards and forwards and are 

 plainly visible when the insect is looked at from above. The characters 

 distinguishing this race from the type of the species are given by 

 Dr. Forel as follows : 



" The race durbanensis is distinguished from the type of micans 

 by its dull abdomen, which is strongly and longitudinally rugose 

 (almost shining and finely reticulate, with only a few feeble rugae, 

 in the type of micans). In addition, the sides of the abdomen are 

 much more convex, and it is a little shorter. The head is much 

 narrower in front, and like the sides of the prothorax has much 

 stronger denticulations. The epinotal spines are also a little longer 

 and less elevated. The epinotum itself is narrower and the dorsum 

 longer. Its lateral tooth near the base is much more feeble and very 

 slightly apparent. The 2nd node of tbe petiole is much shorter and 

 narrower. The hairs on the body are longer and less obtuse." 



$. 6 mm. (hitherto undescribed). The head is very little narrowed 

 in front of the eyes, which are flatter than in the 9 . The sculpture 

 of the head is coarser and more distinctly reticulate than in the ^ , 

 the spaces between the rugae somewhat excavated, without forming 

 distinct pits. The denticles on the lateral margins of the head are 

 more or less effaced, but the 2 teeth near the posterior angles are 

 much larger than in the ^ • Head only slightly wider behind than 

 the prothorax. The pronotum is very coarsely rugose, the rugae very 

 prominent and trenchant. Mesonotum, scutellum, and epinotum 

 irregularly and coarsely rugose, the rugae on the mesonotum between 

 the parapsidal sutures more or less effaced. The lower anterior 

 corner of the mesosternum is merely angular, not spinose as in the 

 ^ . Epinotal teeth parallel, horizontal, truncate at the apex, barely 

 half as long again as their basal width, much shorter than the interval 

 between them. The 1st node is as long as wide in front, the anterior 

 half of the sides parallel, the posterior half converging inwards. 

 Second node subglobose, a little more than one-fifth wider than the 

 1st, and a little wider than long. Both nodes strongly rugose length- 

 wise and deeply grooved between the rugae. The 1st node has a 

 broad, oblong, and laminate projection below which ends in front and 

 behind in dentate angles. Abdomen long, parallel-sided, emarginate 

 at the base and broadly rounded at the apex, one and three-quarter 

 times longer than wide. Deiilated. Otherwise like the £' . 



$ . 44 mm. (hitherto undescribed). Colour as in the $; pilosity 

 longer, less obtuse, and a little more abundant. Head and thorax 

 longitudinally rugose, very coarsely rugose on the epinotum and 

 nodes, much more finely on the head and mesonotum. The pronotum 



