While this particular ghost moth does appear to have a ghost “face” on its forewings, it is unrelated to the common name for the family. The name more likely refers to the males’ mating flights at dusk. The males fly together in a dance-like fashion, hovering over the ground, sometimes slowly rising and falling like a ghost. Females will enter this group to select a mate. The name could also refer to their elusive nature, as they are seldom seen and rarely attracted to lights or baits attractive to other moths. There does not seem to be a lot of information available for this uncommon species. It is found in meadows and grasslands from Alaska to Alberta and Idaho, and south to perhaps Arizona. The larval food source is unknown, but other members of the genus feed on roots of grasses.
Photo by Kristi DuBois on 9/17/20 in Missoula, MT