It has two broad leaves and a single greenish brown flower with a callus of many glands covering most of the top of the labellum.

[2][4][5][6] Chiloglottis platyptera was first formally described in 1991 by David Jones from a specimen collected in Barrington Tops National Park and the description was published in Australian Orchid Research.

[5] The winged ant orchid grows with grass in tall forest and on the edges of rainforest between Dungog and Yarrowitch, including in the Barrington Tops, Oxley Wild Rivers and Ben Halls Gap National Parks.

[2][4] Chiloglottis platyptera is listed as "vulnerable" under the New South Wales Government Biodiversity Conservation Act 2016.

The main threats to the species are grazing by domestic stock, weed invasion (especially by scotch broom), the activities of feral pigs and land clearing.