Females of this species have medium-long curved ovipositers to lay their eggs in the soil.

Unlike some ground wētā species, A. nox does not show maternal care.

Anderus nox was first described in 2016, but had been referred to in previous publications by an informal (tag) name (Hemiandrus 'alius').

[3] Anderus nox is endemic to the North and South Island of New Zealand, but restricted to mature native forest.

[1] Adult females have a medium-long length, strongly curved ovipositor with dark patches at its base.