Tweet this page Like this page Email this page Share this page Home» Resources » Identification » Animals » Key to Ants of NZ » Key 13 Ant key 13 Subfamily Myrmicinae Propodium without spines (unarmed) (Fig. a). 14 Propodeum with spines (armed) (Fig. b). 17 Fig. a: Propodium of M. antarcticum Fig. b: Propodium of Tetramorium grassii