Key to Australian Genera of Dorylinae

1

 * Mesosoma attached to the gaster with two segments (the petiole and postpetiole), each segment being set off by distinct constrictions (Fig. aa) => Aenictus


 * Mesosoma attached to the gaster with a single, distinct segment (the petiole), the segment being set off by a distinct constriction in front and either a distinct constriction (Fig. a) or a shallow impression (Fig. b) behind => 2

2

 * Gaster with the junctions between the last four segments smooth so that in profile their upper surfaces form a smooth outline (Fig. a) => Cerapachys
 * Gaster with the junctions between the last four segments distinct constrictions so that in profile their upper surfaces form a series of convexities (Fig. aa) => Sphinctomyrmex