A Monograph of the Formicidae of South Africa. 633 



much shorter and scantier than in the type of the species. In the 

 shape of the head and the epinotum this race resembles race rada- 

 mae, var. mixtellus. The head is much more convex above than in 

 the type species. It is as wide, or a little wider than long, the 

 sides more convex, the posterior margin less concave and the occi- 

 pital lobes less prominent than in the type of the species. The 

 posterior margin of the head is only very shallowly emarginate or 

 almost straight. The frontal carinae more divergent behind than in 

 maculatus i. sp. Clypeus flatter transversely, more obtusely carinate, 

 the lobe less produced. Metanotum distinctly defined. Dorsum of 

 epinotum flat transversely, feebly convex lengthwise, distinctly deli- 

 mited from the sides and the declivity, its junction with the latter 

 forming a distinct but wide angle ; declivity as long as the dorsum. 



Convexity of thorax, L. — 3^- H., highest at the meso-epinotal 

 suture. Scale less convex in front and behind than in the type of 

 the species. Tibiae barely compressed, not setose below. Otherwise 

 like the Qj. of the type species. 



^ media, 8 - 2 mm. Colour, sculpture and pilosity as in the Qj.. 

 Head about one-sixth longer than wide, the posterior angles more 

 rounded than in the § media of maculatus i. sp. and the posterior 

 margin straight, not concave. Otherwise like the Qj. 



g minor, 6'5-7 mm. Legs ochreous, tarsi slightly brownish ochre- 

 ous, scapes brown, thorax brownish above on the pro-mesonotum, 

 ochreous elsewhere. Abdomen yellowish brown. Head nearly half 

 as long again as wide, the outline behind the eyes semicircular; in 

 front of the eyes the sides are straight and slightly convergent 

 anteriorly. Otherwise like the § media. 



Hermanus, Cape Prov. (L. Lochee-Bayne). 



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



Race sexpunctatus, Forel. 

 Mitth. Schweiz. Ent. Ges. vol. 9, p. 66, % & $. 1894 



This race, originally described as a distinct species, was subse- 

 quently reduced to a race of maculatus by its author, and yet later 

 was once more re-instated in its specific rank. Santschi, going even 

 further, proposed that it should be removed to the sub-genus Dino- 

 myrmex, a view with which Forel apparently agrees, since in his 

 recent revision of the genus, (Rev. Suisse Zool. Vol. 22, p. 268, 1914), 

 he lists it under that sub-genus. 



I have received from Dr. Forel, cotypes of the Qj., ^ and 9 of 

 this form and a careful examination of these specimens convinces 



