Euwallacea similis, is a species of weevil native in the Oriental region through to Australia but shows a cosmopolitan distribution due to introduction to many parts of the world.

Adults are known to attack small branches and seedlings to large logs as well as stressed, dying, dead or felled trees.

It is particularly common in disturbed areas and flies mainly around dusk, and can be attracted to light in large numbers easily.

Both parent female and the larvae feed on the ambrosia fungus such as Ambrosiella which are growing on the walls of the galleries.

[6] Adults can be controlled by natural predators such as lizards, clerid beetles and ants as they attempt to bore into the host tree.