Myrmeciinae

These large, conspicuous ants are most abundant and diverse in southern regions and are rare in the tropics.

The subfamily contains two genera (with three additional genera known only from fossils): Myrmecia with its 89 described species and subspecies are limited to Australia and New Caledonia while Nothomyrmecia with a single species is restricted to mallee of southern Australia. Species of Myrmecia are often abundant and can be found in a range of habitats including parks and gardens while Nothomyrmecia are rarely encountered although it appears that they are more common and widespread than the known material would suggest. This is largely because of their inconspicuous nests and cryptic foraging behaviour.