Ant key 1
| Mesosoma attached to gaster by one segment (the petiole) (Fig. a, b). | 2 |
| Mesosoma attached to gaster by two segments (the petiole and post-petiole) (Fig. c) | 4 |
Fig. a Petiole of Hypoponera eduardi
Fig. b Petiole of Prolasius advena
Fig. c Petiole and post-petiole of Solenopsis invicta
