Lasionycta quadrilunata

Lasionycta quadrilunata is a moth of the family Noctuidae. It is found from south-central Alaska down the spine of the Rocky Mountains to Colorado.

It flies over scree tundra and is diurnal.

Adults are on wing from mid-July to early August.

Subspecies

 * Lasionycta quadrilunata quadrilunata (mountains of Colorado)
 * Lasionycta quadrilunata yukona (Alaska Range, southwestern Yukon, the Alberta Rocky Mountains, and the Beartooth Plateau in Montana)