Pantydia diemeni, the gap-lined pantydia, is a species of moth of the family Erebidae. It is found in Australia, where it has been recorded from Tasmania,[1] Queensland, New South Wales, the Australian Capital Territory, Victoria and Western Australia.
The wingspan is about 30 mm. The forewings are pale brown, with a pale thin submarginal line and variable dark areas. The hindwings are uniform pale brown.[2]