Gnathifera opsias is a moth in the family Epermeniidae. It was described by Edward Meyrick in 1897. It is found in Australia, where it has been recorded from Tasmania.[1]
The wingspan is 10–14 mm. The forewings are fuscous, suffusedly irrorated (sprinkled) with white and with scattered black scales and sometimes with a small black spot beneath the fold at one-fifth. There are black dots beneath the costa at one-fifth and two-fifths, one in the disc between these, one on the fold before the middle, one in the middle of the disc often forming a short oblique transverse mark, one in the disc beyond the middle, and one at three-fourths. There are also minute black dorsal scale-teeth before and beyond the middle. The hindwings are grey.[2]