Tweet this page Like this page Email this page Share this page Home» Resources » Identification » Animals » Key to Ants of NZ » Key 4 Ant key 4 Subfamily Myrmicinae Mandibles elongated with teeth only at tip (Fig. a). Antennae 5 or 6 segments. 5 Mandibles triangular with teeth along inner margin (Fig. b). Antennae 10 or more segments. 6 Fig. a: Head of Orectognathus antennatus Fig. b: Head of Tetramorium bicarinatum