''Apantesis williamsii'', or Williams' tiger moth, 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 w ...

of the family

Erebidae The Erebidae are a family of moths in the superfamily Noctuoidea. The family is among the largest families of moths by species count and contains a wide variety of well-known macromoth groups. The family includes the underwings ('' Catocala'') ...

. It was described by Charles R. Dodge in 1871. It is found in North America from the

Northwest Territories The Northwest Territories (abbreviated ''NT'' or ''NWT''; french: Territoires du Nord-Ouest, formerly ''North-Western Territory'' and ''North-West Territories'' and namely shortened as ''Northwest Territory'') is a federal territory of Canada. ...

east to the northern Great Lakes region,

New Brunswick New Brunswick (french: Nouveau-Brunswick, , locally ) is one of the thirteen provinces and territories of Canada. It is one of the three Maritime provinces and one of the four Atlantic provinces. It is the only province with both English and ...

and

New England New England is a region comprising six states in the Northeastern United States: Connecticut, Maine, Massachusetts, New Hampshire, Rhode Island, and Vermont. It is bordered by the state of New York to the west and by the Canadian provinces ...

. It also occurs throughout the northern Great Plains, south at higher elevations to

Arizona Arizona ( ; nv, Hoozdo Hahoodzo ; ood, Alĭ ṣonak ) is a state in the Southwestern United States. It is the 6th largest and the 14th most populous of the 50 states. Its capital and largest city is Phoenix. Arizona is part of the Fou ...

and

New Mexico ) , population_demonym = New Mexican ( es, Neomexicano, Neomejicano, Nuevo Mexicano) , seat = Santa Fe , LargestCity = Albuquerque , LargestMetro = Tiguex , OfficialLang = None , Languages = English, Spanish ( New Mexican), Navajo, Ker ...

, west to south-eastern

British Columbia British Columbia (commonly abbreviated as BC) is the westernmost province of Canada, situated between the Pacific Ocean and the Rocky Mountains. It has a diverse geography, with rugged landscapes that include rocky coastlines, sandy beaches, ...

and eastern

California California is a U.S. state, state in the Western United States, located along the West Coast of the United States, Pacific Coast. With nearly 39.2million residents across a total area of approximately , it is the List of states and territori ...

. The length of the forewings is 14.9 mm. The ground colour of the forewings is chocolate brown to dark brown. The hindwings vary from dull orange buff to pinkish buff or even yellowish. The markings are dark brown to black. Larvae have been reared on a variety of forbs, and is probably a general feeder on herbaceous plants and grasses."''Apantesis williamsii'' (Dodge, 1871)"
''Pacific Northwest Moths''. Retrieved October 23, 2019. 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''.

Subspecies

*''Apantesis williamsii williamsii'' (Dodge, 1871) *''Apantesis williamsii tooele'' (Barnes & McDunnough, 1910) (Central Utah)

References

External links

*Original description
''Canadian Entomologist''
Arctiina Moths described in 1871 {{Arctiina-stub