A Monograph of the Formiciclae of South Africa. 69 



to side, concave posteriorly, and on each side with a slight depression 

 internal to the parapsidal sutures, which are well denned. A raised 

 central line runs back from the anterior margin of the mesonotum 

 for about one-third of its length. A deep crenate sulcus separates 

 the mesonotum from the scutellum ; the latter is gibbous, somewhat 

 triangular and with the sides striate. Metanotum short, with a 

 small tubercle in the centre. The dorsum of epinotum, as long 

 as the mesonotum, merges gradually into the declivity ; the latter 

 has on each side a small boss above, but its lateral limits are feebly 

 defined. Petiole long, three times as long as wide, slightly raised 

 into a node at its middle third ; at its extreme base, furnished with 

 a minute recurved tooth at each side, and a little posterior to these, 

 there is a distinct lateral tubercle. Abdomen lanceolate, 1st segment 

 distinctly longer than wide and very narrow at the base, 2nd seg- 

 ment also longer than wide and about as long as the 1st, the other 

 segments wider than long. Pygidium produced into a sharp curved 

 spine. Apex of abdomen piceous. Legs very long and slender, with 

 two calcaria to the middle and hind tibiae ; claws furnished with 

 a small tooth, nearer to the apex than in the $ . Wings smoky, 

 stigma dark brown, a closed radial cell present, as in E. cdffraria 

 and sennaarensis. Alar expanse 20 mm. 



1 $ taken with the workers by the Eev. E. Godfrey at King 

 William's Town, type in S.A. Museum. 



Natal. (Haviland, Wroughton.) Grahamstown. (Hewitt.) 



The $ £ from King William's Town are slightly larger than the 

 original specimens from Natal (13 mm.), but have the mandibles 

 without any striae and a much more strongly defined and deeper 

 fovea. They are also much more finely punctured and shining, not 

 sub-opaque as in the Natal form, and the punctures are quite discrete 

 and not reticulate. I am deterred from raising this form to varietal 

 rank by an examination of a £ from Vredefort, in the S.A.M. col- 

 lection, in which the puncturation is somewhat intermediate between 

 the two described above, but in which there is also a very deep fovea 

 on the mandible. 



The characters in the male sex alone make it clear that the species 

 is an Euponera. Moreover, in the worker the similarities to the $ 

 of E. Paring ucyi, Emery, are very marked. An examination which 

 I was able to make of the two specimens in Dr. H. Brauns' collec- 

 tion, named by Mayr as Euponera sulcigera, made it certain that 

 Mayr's species is the same as the one now described. Mayr's name 

 must therefore be sunk as a synonym, and at the same time Forel's 

 sub- genus must also be deleted. Should the characters of the $ of 



