This species has a wingspan of 26 mm.[2] Forewings with vein 9 anastomosing (fusing) with vein 8 to form an areole. Cilia yellow and hindwings are uniformly yellow. It differs from Brunia complana in wanting the broad yellow marginal band of forewing on underside.[3]
Ecology
The biology is unknown, but the larvae probably feed on lichen and/or algae. It is mostly found in lowland areas, most frequently in coastal vegetation, including mangroves.[4]
References
^"Brunia antica". India Biodiversity Portal. Retrieved 26 July 2016.
Wikimedia Commons has media related to Brunia antica.
Barnett, L. K.; Emms, C. W. & Holloway, J. D. (July 1, 1999). "The moths of the Chagos Archipelago with notes on their biogeography". Journal of Natural History. 33 (7): 1021–1038. doi:10.1080/002229399300065.