A Monograph of the Formicidae of South Africa. 297 



episternal teeth as long and as wide as the epinotal. Peduncle of the 

 1st segment of the petiole shorter than the node ; the latter is as long 

 as wide, convex at the sides, narrowed towards the median line above, 

 the anterior and posterior faces almost vertical ; the ventral lamella 

 is produced at its extreme base into a small subacute tooth. The 

 2nd node is transversely oval, one-tliii*d wider than long, a little 

 wider than the 1st. Abdomen narrowly truncate at the base. Femora 

 swollen in the middle. 



Park Rynie, Natal. (H. W. Marley.) (S.A.M., R.M., G.A. colls.) 



V 

 T. simulator, n. sp. (Plate VII, fig. 102.) 



$. 4 - 7-5 mm. Head, antennae, mandibles, thorax, nodes, and 

 femora dark castaneOus, abdomen piceous, tibiae and tarsi dark 

 yellowish-red. Head and sides of thorax nitidulous, dorsum of thorax, 

 nodes, and abdomen shining. Antennae, legs, nodes, and abdomen 

 with a short, scanty, and decumbent pubescence ; head and thorax 

 glabrous. Head strongly and longitudinally striate, more strongly 

 so below the demi-scrobes than between them, the demi-scrobes finely 

 reticulate-punctate. Clypeus with a median carina, and two or three 

 strong lines on each side of same. Pro-mesonotum sparsely and 

 longitudinally striate, the striae somewhat effaced towards the middle, 

 also very shallowly and sparsely punctate, the epinotum fairly closely 

 striato-rugose, except the space between the spines, and the declivity, 

 which are smooth and shining. Sides of thorax fairly closely longi- 

 tudinally striate, the outer sides of the epinotal spines finely rugulose. 

 Nodes of petiole faintly rugulose and sparsely punctate, the punctures 

 fairly strong. Abdomen sparsely, finely, and sharply punctate. Legs 

 very shallowly and sparsely punctate. Head, excluding the mandibles, 

 slightly longer than wide, widest in the middle, the sides feebly convex, 

 the posterior angles slightly rounded and prominent, the posterior 

 margin shallowly concave. Eyes large and convex, placed a little 

 behind the middle of the sides. Mandibles large, triangular, sharply 

 striate and also sparsely and strongly punctate, armed with 7 large 

 teeth. Anterior "margin of clypeus feebly convex. Frontal carinae 

 subparallel, extending back almost to the occipital margin, and form- 

 ing the upper boundary of the demi-scrobes. Scapes not x*eaching 

 the occipital margin. Flagellum thick, the 1st joint as long as the 

 2nd and 3rd together, the 2nd-8th wider than long, the 9th and 10th 

 subequal and a little longer than wide, the apical joint half as long 

 again as wide. Shoulders of the pronotum angular. Thoracic sutures 

 obsolete. The thorax is fairly elongate, slightly narrowed between 



