[2] The Mallee worm-lizard (Aprasia inaurita) is identifiable by its pale olive brown or greyish-brown colouring from above, a whitish underside, with a reddish-brown hue around the Mallee worm-lizard's head and neck and a distinctly bright reddish-orange tail.

[2][5][6] The Mallee worm-lizard is also said to require mature habitats with a well-developed surface debris layer.

[7] To burrow through loose soil and to crawl through narrow earth cracks and insect tunnels, Aprasia species use lateral undulations for locomotion.

[5] The Aprasia species are myrmecophagous, with the Mallee worm-lizard specifically targeting the Aphaenogaster sp.

[8] Pygopodids have also been found to be predated upon by the trematode Paradistoma crucifer, the cestode Acanthotaenia striata and by the nematodes Abbreviata sp.

[5] The Mallee worm-lizard belongs to the Pygopodidae family of squamates (scaled reptiles), commonly referred to as ‘legless lizards’ for their snake-like appearance with absent forelimbs and very small vestigial hind-limb flaps which, for the Mallee worm-lizard, occur as small scaley flaps located by the cloacal vent.

[2] Due to the severely fragmented distribution of this species, local populations of the Mallee worm-lizard are vulnerable to extinction from stochastic events.