A Monograph of the Formicidae of South Africa. 87 



First abdominal segment campaniform, 2nd segment longer than 

 the 1st. Legs rather slender; anterior tarsi beneath clothed with 

 dense, golden bristles. Sting short and blunt. For the rest, the 

 characters of the genus. 



? . 20 mm. The large form which I regard as an ergatoid ? , 

 differs from the $ chiefly in size, but the head and abdomen are 

 proportionately wider and longer. The longitudinal impression on 

 the pronotum is shallower, while that of the dorsum of the epinotum 

 is deeper and wider. 



In a nest of three dozen or so individuals, not more than two or 

 three of these large forms are to be found, and usually only one. 



$ . 14 - 5 mm. Black; 3rd segment of abdomen piceous, last three 

 segments ferruginous. A golden-grey pubescence on the whole 

 body, excepting the last four abdominal segments. The margins of 

 all the abdominal segments except the 1st carry a few golden hairs ; 

 elsewhere there is no pilosity. Head moderately shining, closely, 

 finely and shallowly punctured, a little more coarsely in front and 

 at the sides. Pronotum reticulate-punctate, the posterior margin 

 transversely striate. Mesonotum rugosely punctate anteriorly, 

 laterally sparsely and shallowly punctured, the space between the 

 punctures rugulose. Scutellum and metanotum with very large 

 reticulate punctures ; epinotum rugose, coarsely at the sides, 

 finely so above. Node of petiole shining above, closely punctured 

 and dull at the sides. Abdomen microscopically rugulose, shallowly 

 and very sparsely punctured, the punctures somewhat larger and 

 more abundant on the 1st and 2nd segments. 



Head wider than long, sides convex, occipital margin reflexed 

 and forming a small collar. Clypeus widely emarginate ; frontal 

 carinae short, raised above the antennal sockets ; frontal sulcus 

 extends back as far as the anterior ocellus. Antennae filiform, 

 reaching back as far as middle of 1st abdominal segment. Mandibles 

 short, edentate and blunt at apex. Prothorax produced neck-like 

 in front. Mesonotum with well-developed Mayrian furrows and an 

 elongate median triangular area in front, which is shining and 

 impunctate. Scutellum pyramidal, with a large longitudinal sulcus, 

 and separated from the mesonotum by a coarsely crenate impression. 

 Metanotum with a short central carina. Declivity of epinotum 

 deeply excavated, transversely rugose ; the lateral margins ridged 

 as in the £ . Node of petiole sub-globose seen from above ; seen 

 from the side the dorsal portion is convex, the posterior face vertical, 

 the anterior face almost so ; ventral lamella produced at the extreme 

 base into a triangular tooth pointing downwards. Seen from above the 



