A Monograph of the Formicidae of South Africa. 359 



Head rectangular, a little longer than wide, slightly narrower in 

 front than behind, the posterior angles rounded, the posterior margin 

 moderately convex, the sides almost straight. Eyes fairly large, 

 placed just in front of the middle of the sides. Median area of 

 the clypeus longitudinally striate, somewhat produced in front, the 

 anterior margin straight, with a longitudinal and shallow impression 

 in the middle. Mandibles sharply striate and sparsely punctured, 

 armed with 5 large and obtuse teeth, the external margin feebly 

 convex. Frontal carinae not extending back beyond the level of the 

 anterior margin of the eyes. Frontal area triangular, depressed, and 

 shining. Scapes not quite reaching the posterior margin of the head ; 

 4th-7th joints of the flagellum as wide as long, all the rest longer 

 than wide. The wide pronotum has a distinct neck in front, the 

 anterior margin above the latter very convex. In most specimens the 

 pro-mesonal suture is very feeble, almost obsolete. The thorax is 

 widest across the posterior third of the pronotum, behind that point it 

 narrows gradually towards the meso-epinotal suture. Epinotum 

 rounded. The dorsum of the thorax, seen in profile, forms two 

 rounded bosses or convexities which are separated by a deep depression 

 at the meso-epinotal suture. Epinotum unarmed, the dorsum widest 

 in the middle, as long as the declivity, the latter not very steep, 

 strongly and transversely rugose ; an episternal lobe on each side 

 below. Peduncle of the petiole ending in a small tooth below. The 

 1st node twice as long as its peduncle, subglobose, as wide as long, the 

 anterior face nearly vertical. Second node wider than the 1st, nearly 

 half as wide again as long, highest behind the middle, the sides 

 rounded. Abdomen oval, truncate at the base. 



§ . 6-5-7 mm. Ergatoid or pseudogyne. A fairly abundant 

 pilosity is present, composed of pale, thin, erect, and whitish hairs. 

 Abdomen and legs with a decumbent and fairly sparse pubescence. 

 Eyes a little larger than in the $ . Thoracic sutures more distinct ; a 

 scutellar portion of the mesonotum faintly defined. Dorsum of epi- 

 notum impressed transversely in the middle, the junction with the 

 declivity more abrupt than in the $ ; these features are somewhat 

 masked by the very coarse sculpture. Declivity wider than in the $ . 

 Nodes and abdomen wider than in the £ , the former rather less convex 

 above. The sculpture is even more coarse, and the rugae on the head 

 iliverge outwards towards the lateral angles behind. Otherwise like 

 the $. 



Willowmore, Cape Prov. (Dr. H. Brauns.) (S.A.M., R.M., G. A. 

 colls.), type of $ in my collection. 



