Psammopolia arietis
Introduction '''''Psammopolia arietis''''' is a moth of the family Noctuidae. It occurs on Pacific Coast sand beaches from Mendocino, California to south-western Alaska. It is absent from the inland Strait of Georgia.Adults are on wing from late July to early September.The larvae live in sand dunes and feed on ''Lathyrus littoralis'', ''Polygonum paronychia'', ''Abronia latifolia'' and an unspecified grass.
Description ''Psammopolia arietis'' are brownish silver-gray. Its forewings have a busy pattern of black lines and spots while its hindwings are a light brown. It is most often confused with Psammopolia wyatti however it can be distinguished due to its smaller size and larger spots with dark centers.
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