Myrmecia dimidiata is an Australian ant which belongs to the genus Myrmecia. This species is native to Australia. The Myrmecia dimidiata is distributed in the eastern states of Australia. Appearance The Myrmecia dimidiata is quite big. The worker ants are on average around 23-25 millimetres in length. They are usually a brownish red colour, but the antennae and legs are lighter. The mandibles are yellow. References Myrmeciinae Hymenoptera of Australia Insects described in 1951 Insects of Australia