Pyrgotis plagiatana is a species of moth of the family Tortricidae. It is found in New Zealand. The wingspan is about 18 mm. It is a variable species, differing much in the intensity of colouring. The forewings are whitish, suffused with pale ochreous, becoming darker towards the inner margin. The hindwings are whitish, faintly tinged with ochreous at the apex and spotted with grey.