Mountain Plume Moth

Adaina montanus is a moth of the family Pterophoridae. It is found in North America, including south-eastern Canada and the western and north-eastern United States.

The wingspan is about 16 mm. The head is white and the antennae are faintly dotted above with brownish. The thorax, abdomen and legs are snow white, although the fore and middle legs are brownish on the inner side. The forewings are snow white, sprinkled with ferruginous-brown scales, especially on the outer half of the costa. A spot of these scales is found before the base of the fissure and runs obliquely to a darker spot on the costa, which is nearly connected by a dark shade with another brown costal spot near the apex. There is a dark-brown fine streak on the outer half of the costa of the second lobe extending through the fringe under the apex. All of the rest of the fringe is snow white. The hindwings are dusted with cinereous (ash-grey) brown.