Antiochtha achnastis

Antiochtha achnastis is a moth in the Lecithoceridae family. It was described by Meyrick in 1906. It is found in Sri Lanka.

The wingspan is 18-20 mm. The forewings are fuscous irrorated with dark fuscous or blackish. The stigmata are dark fuscous or black, ringed with whitish, sometimes large, the plical slightly beyond the first discal, these two placed in an indistinct irregular rather oblique narrow fascia of whitish suffusion which forms a more distinct whitish spot on the costa, sometimes preceded by a dark fuscous spot. There is a cloudy subterminal line of ochreous-whitish suffusion, angulated in the middle, forming a conspicuous triangular ochreous-white spot on the costa. The hindwings are grey, darker posteriorly.