298 Annals of the South African Museum. 



the pro- and mesonotum, more strongly so between the latter and the 

 epinotum, not marginate laterally, the sides vertical, the dorsal profile 

 horizontal. The dorsum of the epinotum is narroAvest at the base and 

 widest at the basal third ; epinotal spines subparallel, directed back- 

 wards and very little upwards, acute, compressed laterally, shorter 

 than the interval between their bases and not longer than their basal 

 width. The declivity is vertical, hardly half as long as the dorsum, 

 marginate at the sides, the margins continued below into the rather 

 short and rounded episternal teeth or lobes. Peduncle of the 1st 

 segment of the petiole thick, less than half as long as the node ; the 

 latter truncate in front, the anterior face vertical, the posterior face 

 short, rounded above and subvertical. The node is quite one-third 

 longer than wide, widest at its posterior third, convex transversely 

 above, the sides feebly convex. The 2nd node is almost hemispherical, 

 widest behind, nearly twice as wide as the 1st node. Abdomen oval, 

 the 1st segment longer than wide, and forming almost the whole of 

 the dorsum. All the femora swollen in the middle. 



Malindi, S. Rhodesia ; preying on termites. 



At first sight this species bears a resemblance to T. (Xiphomyrmex) 

 decern, Forel, but is easily distinguished from it by its larger size and 

 the 12- join ted antennae. 



(S.A.M., R.M., G-.A. colls.) ; type in my collection. 



T. lobtjlicorne^ Santschi. 



Ann. Soc. Ent. France, vol. 84, p. 504, £ , 1916. 



5 . 3' 5 mm. Reddish-yellow-brown (raw umber), the abdomen 

 reddish-brown, the anterior fourth of the head, the mandibles, 

 antennae and legs ochreous or reddish-yellow. A sparse and short 

 pubescence on the legs and antennae, wanting elsewhere. The 

 pilosity consists of short, suberect, blunt and yellowish hairs, very 

 scanty on the head and thorax, a little more abundant on the nodes 

 and abdomen. Head, between the frontal carinae, fairly strongly and 

 longitudinally striate, the sides of the head in front of the eyes 

 and the cheeks longitudinally rugose and reticulate, the demiscrobes, 

 especially on their posterior halves, closely and finely reticulate. 

 Thorax reticulate-rugose, the rugae uneven and emphasised longi- 

 tudinally, shallowly reticulate-punctate between the rugae. The 

 apical half of the epinotum and the peduncle of the petiole closely 

 reticulate-punctate or granulate. Nodes sparsely rugose, reticulate- 

 punctate and dull. Abdomen shining, microscopically rugulose. 

 Thorax subopaque, head slightly shining. 



