52. Pas. orphnæa, n. sp.
Female.—28–30 mm. Forewings moderate, hindmargin rounded; dark fuscous, mixed with yellowish and whitish, which tend to form alternate fasciæ; a discal dot and numerous curved irregularly dentate blackish lines,
varying in strength and intensity; cilia barred with blackish and whitish. Hindwings moderate, hindmargin rounded; dark fuscous; a blackish discal dot; a cloudy whitish irroration forming a double curved fascia beyond middle, and a dentate subterminal line; cilia as in forewings.
Imitative in colour of the dark lichen-grown rocks.
I took three specimens almost on the summit of Ben Lomond, Lake Wakatipu, at 5,600 feet, in January.