140 Annals of the South African Museum. 



narrower, and less compressed between the meso- and epinotum. 

 The latter is strongly reticulate-punctate, as are also the sides of the 

 mesonotum, the whole of the 1st joint of the petiole, and the sides of 

 the 2nd. The puncturation is decidedly larger and more distinct than 

 in rotundatus. The posterior corners of the pronotum also show a 

 slight puncturation. The dorsal surface of the 2nd joint of the 

 petiole is nearly smooth and rather shining. The limits of the 

 dorsum and the declivity of the epinotum are clearly defined, as the 

 brow forms a sharp overhanging edge, so that the declivity also 

 appears somewhat concave. The 1st node of the petiole is a little 

 narrower, more parallel-sided and less convex above than in 

 rotundatus. Legs longer and more slender, the 1st tarsal joint of 

 the hind legs as long as the tibiae. 



Bothaville, Orange Free State. (Brauns.) Makapan. (Simon.) 

 Bulawayo. 



This species was taken on one occasion near Bulawayo in large 

 numbers, marching in single file and carrying larvae from under one 

 large stone to another. Amongst these workers there was found a 

 monstrosity. This specimen has but one joint to the petiole, which 

 is fused on the whole of its anterior surface to the epinotum, which 

 consequently shows no declivity, and is moreover very lop-sided. 



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



A. maeiae, Emery. 

 Ann. Soc. Ent. France, vol. 63, p. 48, £ minor, 1895. 



£ . This species varies in size between wider limits than either 

 rotundatus or eugeniae, varying from 2 to 3 mm. The smaller forms 

 also differ from the larger in tbe shape of the head, so that it is 

 hardly correct to say that the workers of this species are mono- 

 morphic. In the g major the colour is reddish ochre, or similar 

 to rotundatus, in the $ minor it is paler or straw-yellow, except- 

 ing the anterior margin of the head and the margins of the man- 

 dibles, which are dark. The pilosity is similar to that of the 

 preceding forms, but scantier. In the £ minor the whole body 

 is smooth and shining ; in the $ major the sides of the mesonotum, 

 and the epinotum, excepting a small smooth area in the middle 

 of the dorsum, are dull and very finely punctured. 



The head is nearly parallel-sided in the £ minor, moderately 

 convex in the £ major ; it is a little longer than wide, and shallowly 

 emarginate posteriorly. The mandibles are shining, fairly strongly 

 punctured, with 4 small but distinct teeth on the masticatory margin 

 and a strong apical tooth. The antennae are much shorter rela- 



