164 Annals of the South African Museum. 



punctures larger than the others ; the extreme anterior margin of the 

 mesonotum finely and rather closely punctured. Pilosity very sparse, 

 consisting of stout, suberect, yellowish hairs, fairly long on the pro- 

 notum and abdomen, shorter elsewhere. A very scanty pubescence 

 on the legs and antennae. Head, excluding the mandibles, as long as 

 wide behind, wider behind than in front, posterior margin very 

 shallowly concave, the angles rounded. Eyes large, not very convex, 

 placed in the middle of the sides, ocelli present. An oblique and 

 shallow groove or elongate fovea lies on the inner border of each 

 frontal carinae, along the posterior half. First joint of flagellum as 

 long as wide, 2nd — 9th joints wider than long, 10th about as long as 

 wide, the apical joint twice as long as wide, as long as the 9th and 

 10th together. Pronotum widely exposed above, convex transversely 

 and lengthwise ; mesonotum moderately convex, the parapsidal sutures 

 feeble. Scutellum trapezoid, its postei'ior margin convex, sloping 

 downwards posteriorly and hardly raised above the level of the meta- 

 notum; the latter rather long, quite one-quarter the length of the 

 scutellum. Epinotum sloping from its base downwards, merging into 

 the declivity by a deep curve, wider than long, shorter than the 

 declivity, the latter convex transversely and vertical. Petiole twice as 

 wide as long, wider above than below, the dorsal surface moderately 

 convex transversely and lengthwise ; the anterior face vertical, concave 

 dorso-ventrally and convex transversely ; posterior face very steep 

 or almost vertical ; ventral lamella produced into a large triangular 

 tooth. Base of abdomen subtruncate, slanting a little forwards (as 

 also the petiole) . Abdomen elongate, cylindrical, parallel- sided, two 

 and four-fifths longer than wide, the constriction between the 1st and 

 2nd segments feeble. Wings dirty yellowish, nervures dark brown, 

 stigma black. Other characters as for the sub- genus. 



Victoria Falls. Type in my collection. 



I retain this species under the genus Glyphopone, since it appears 

 to me that its points of resemblance with that genus (metatarsal and 

 tibial spines, the polished integument, and structure of the node) are 

 of greater value than the points of difference. 



Sub-Family MYRMICINAE, Mayr. 



Yer. Zool. Bot. Ges. Wien, vol. 5, p. 299, 1855. 



Characters. 



Petiole 2-jointed in all the sexes ; very rarely (Melissotarsus) the 



2nd joint is nearly as wide as the 1st abdominal segment. Pupae not 



enclosed in cocoons. 



