''Apantesis behrii'' is a

moth Moths are a paraphyletic group of insects that includes all members of the order Lepidoptera that are not butterflies, with moths making up the vast majority of the order. There are thought to be approximately 160,000 species of moth, many of ...

of the family Erebidae. It was described by Stretch in 1872. It is found from

Oregon Oregon () is a state in the Pacific Northwest region of the Western United States. The Columbia River delineates much of Oregon's northern boundary with Washington, while the Snake River delineates much of its eastern boundary with Idah ...

south to

California California is a state in the Western United States, located along the Pacific Coast. With nearly 39.2million residents across a total area of approximately , it is the most populous U.S. state and the 3rd largest by area. It is also the ...

. It is most common in the Siskiyou and Sierra Nevada ranges. The habitat consists of dry lithosol flood plains and balds in the mountains. The

is about 34 mm. The forewings are black, with a pattern of bright ochreous yellow bands. The hindwings are saturated orange-pink, but sometimes yellow. There are two to three dark postmedial spots and some marginal black marks. Adults are on wing from early August to late September. The larvae feed on '' Lotus humistratus'' and ''

Amsinckia ''Amsinckia'' is a genus of flowering plants commonly known as fiddlenecks. The common name is derived from the flower stems, which curl over at the top in a manner reminiscent of the head of a fiddle. Fiddlenecks are in the family Boraginac ...

'' species.Schmidt, B.C. 2009: "Taxonomic revision of the genus ''Grammia'' Rambur (Lepidoptera: Noctuidae: Arctiinae)". ''Zoological Journal of the Linnean Society''. 156: 507-597. This species was formerly a member of the genus ''Grammia'', but was moved to ''Apantesis'' along with the other species of the genera ''Grammia'', ''Holarctia'', and ''Notarctia''.

References

Natural History Museum Lepidoptera generic names catalog
Arctiina Moths described in 1872 {{Arctiina-stub