A Monograph of the Formicidae of South Africa. 591 



the basal half, strongly punctured, the apical half strongly striate. 

 Clypeus more convex than in custodiens, its anterior margin arcuate. 

 Frontal carinae and frontal area as in custodiens, The head is sub- 

 ovate or subcircular, narrowed slightly in front, the sides much more 

 convex than in custodiers, the posterior margin straight. The scape 

 extends beyond the hind margin by one-sixth of its length. Prono- 

 tum shorter than in custodiens, quite twice as wide as long; the 

 mesonotum a little wider than long; the metanotum very short, less 

 distinct than in custodiens and separated from the epinotum by a 

 much deeper suture. Epinotum more convex transversely than in 

 custodiens. The scale of the petiole a little thinner than in that 

 species, and barely or not at all emarginate in the middle of the 

 upper edge. Abdomen subcircular, a little longer than wide. 



^ media, ^S-S^ mm. A little darker on the head and thorax, 

 the former a little longer and less convex-sided. Otherwise like the 

 § maxima. 



Q minor. 3-38 mm. Dark brown or blackish brown, only the 

 mandibles, antennae, tibiae and tarsi paler or ferruginous. Fairly 

 shining all over, especially the cheeks and abdomen. The sculpture 

 is much more superficial than in the larger § §. The scapes are 

 longer, extending beyond the hind margin by one-third of their length. 

 The meta-epinotal suture is shallower, and the scale is much thicker 

 above than in the larger § §. The head is much less convex at the 

 sides and is also longer than in the larger § ^. 



2 11'8 mm. (hitherto undescribed). Very dark reddish brown, the 

 abdomen blackish brown, the mandibles, antennae and legs more or 

 less ferruginous. A more slender insect than the ^ custodiens and 

 not dissimilar, but easily distinguished by the following characters. 



The sculpture is much stronger. The head is closely punctato- 

 rugulose, between the frontal carinae mainly punctate. The clypeus 

 is strongly and closely punctured, its anterior margin arcuate, not 

 subangular in the middle. The frontal sulcus is much deeper than 

 in custodiens. The mesonotum is closely punctured with fairly deep 

 and small punctures; its is narrower than in custodiens, being only 

 one-fifth wider than long. The scutellum is longer, or more than 

 half the length of the mesonotum. The chief distinction between 

 the two species lies in the form of the scale, which in this species 

 is deeply and almost angularly excised above in the middle, whereas 

 in custodiens the emargination is wide and shallow. The abdomen 

 is longer, or one and a half times longer than wide. Wings hya- 

 line, except the subcostal cell which is ochreous; all the nervures 

 ochreous except the subcostal which is blackish brown. 



