Ant key 5
Subfamily Myrmicinae
| Antennae 5-segmented (including the scape), and with the third segment from the tip elongate and much longer than the other segments (excluding the scape). Spines on mesosoma in addition to pair on propodium. | Orectognathus antennatus |
| Antennae 6-segmented (including the scape), and with the third segment from the tip shorter than other segments. Spines on propodium but not on mesosoma (NB: S. xenos is a social parasite of S. perplexa and has no workers). | Strumigenys perplexa |
