The eggs are laid by the females of the species in stubs on grey mangrove trees where there is a presence of Crematogaster ant colonies.

[4] There have been no recorded natural enemies of the Illidge's ant-blue, except for the exposed immature stage as an egg to hunting spiders.

The essential threat to the existence of Illidge's ant-blue butterfly arises as a result of the destruction of mangrove habitats.

Since numerous plants and animals are so heavily reliant on each other within the mangrove systems, its destruction also endangers the existence of other organisms such as crustaceans and molluscs.

[4] To prevent the extinction of the Illidge's ant-blue butterfly the state government of Queensland granted the species permanently protected status in 1990.