Northern Prairie Wildlife Research Center
Wingspan 3.7 cm. Forewing is pale gray and marked by a thin straight dark postmedian line that extends to the apex; hindwing is variable white to gray. This noctuid is common in dry forests in the Pacific West. Moths fly in early spring. Caterpillars feed on the foliage of manzanita (Arctostaphylos).
Similar species: Pleromelloida cinerea (Noctuidae) forewing with a broad postmedian line with small black spots, widely distributed in western North America, moths fly in fall, caterpillars feed on the foliage of snowberry (Symphoricarpos albus); Pleromelloida obliquata forewing with jagged black lines, widely distributed in western North America, moths fly in the early spring, caterpillars feed on foliage of snowberry; species of Cucullia, such as Cucullia intermedia, are larger, forewing more elongate, moths fly in early summer.