Dorylus (Anomma) nigricans Illiger subspecies arcens (Westwood) ^HNS

Eleven maxima and media workers from Medje (Lang and Chapin), taken from the stomach of a toad (Bufo funereus), are very dark, almost black, and are evidently referable to this subspecies, though the largest specimens are only about 10.5 mm. long, whereas the largest workers, according to Emery and Santschi, measure 13 mm. The surface of the body is very shining, the head more opaque in front.