Pyncostola actias is a moth of the family Gelechiidae. It was described by Edward Meyrick in 1904. It is found in Australia, where it has been recorded from South Australia, Western Australia and Tasmania.[1]
The wingspan is . The forewings are light shining golden ochreous with a broad white costal streak from the base to the apex, the lower edge posteriorly suffused and more or less mixed with dark fuscous. There is a white dorsal suffused streak from the base to the tornus and sometimes some indistinct whitish streaks and dark fuscous scales towards the termen. The hindwings are pale grey.[2]