Acanthoponera mucronata var. wagneri Santschi ^HNS, Bull. Soc. Vaud

Sc. Nat. 54, 1921, p. 84 [worker].

Type locality: Banderas, 55 km. north of Icaño, Chaco de Santiago del Estero, Argentina (E. R. Wagner).

The following key may serve for the identification of the workers of the various forms of Acanthoponera ^HNS mentioned in this paper:

1. Claws tridentate; epinotum armed with spines; petiole

terminating above and behind in a spine; constriction between postpetiole and gaster feeble or absent (subgen.