It has two leaves and a single green flower with a shiny black, insect-like callus occupying most of the labellum.

The labellum is trowel-shaped, 7.5–8 mm (0.30–0.31 in) long and about 4 mm (0.16 in) wide with a square-cut tip and a narrow, shiny black, insect-like callus extending to its tip.

[2] Chiloglottis truncata was first formally described in 1987 by David Jones and Mark Clements from a specimen collected at Anduramba and the description was published in Proceedings of the Royal Society of Queensland.

[3] The specific epithet (truncata) is a Latin word meaning "shorten by cutting off".

[4] The small ant orchid grows in forest and woodland between Kingaroy and Toowoomba.