214 Annals of the South African Museum. 



of flagellmn globose (as in Solenopsis), as long as the scape, the 

 remaining joints longer than wide, increasing in length successively 

 towards the apex, the apical joint flattened. Mesonotum very gibbous 

 in front, the anterior margin strongly convex transversely and two 

 and a third times longer than the scutellum. The latter is one and a 

 half times wider than long, the posterior margin semi-circular. The 

 mesonotum and scutellum are raised much above the level of the 

 epinotum. The latter is nearly two and a half times wider at the 

 base than it is long ; the posterior angles are slightly raised, not 

 distinctly tuberculate. The declivity of the epinotum is vertical, 

 shorter than the dorsum. Nodes as in the ? , but flatter ; the 

 posterior dorsal face of the 1st node is a little wider than long. 

 Wings as in the ? but paler. 



Redbank, and Nyamandhloru, S. Rhodesia. This species is easily 

 distinguished from our other species by the very wide head, the very 

 convex pro-mesonotum, the narrow 1st node and the campaniform 2nd 

 node. 



(S.A.M., R.M., G.A. colls.) 



M. modesttjm, Santschi. 



G-oteborgs Kungl. Vetens. och Vitterh. Handl., xv, 2, p. 17, $ , 1914. 



"<£>'. i'6-1'7 mm. Yellow, smooth and shining. A very short, 

 fine and erect pilosity is abundant over the whole body, including the 

 legs and antennae. Head rectangular, hardly wider behind than in 

 front, the occipital margin straight, the sides feebly convex. Posterior 

 angles of the head rounded. Eyes composed of a single facet, placed 

 slightly in front of the middle of the sides. Clypeus short and 

 abrupt, the two carinae of which are close together and subparallel. 

 Mandibles with masticatory margins oblique, quadridenticulate. The 

 scape extends back as far as the posterior margin of the head ; 2nd to 

 8th joints of the flagellum very short, much wider than long, 9th and 

 10th joints subequal, the 10th joint only slightly thicker, the last 

 joint very thick and almost as long as the four preceding joints taken 

 together. Pro-mesonotal suture obsolete, meso-epinotal suture mode- 

 rately deep. Pro-mesonotum slightly convex. Dorsum of the epinotum 

 flat, submargined, forming a distinct angle with the declivity, which is 

 also flat and margined, and two-thirds as long as the dorsum. First 

 joint of petiole with a long peduncle, the node higher than the 2nd, 

 and with its posterior face shorter than the anterior, which is much 

 more oblique ; distinctly longer than wide, a little narrower than the 

 2nd node, which is wider than long. 



