Apantesis tooele ab. ophir Barnes & McDunnough, 1910
Apantesis bolanderi ab. confluentis Strand, 1919
Apantesis williamsii, or Williams' tiger moth, is a moth of the family Erebidae. It was described by Charles R. Dodge in 1871.[1] It is found in North America from the Northwest Territories east to the northern Great Lakes region, New Brunswick and New England. It also occurs throughout the northern Great Plains, south at higher elevations to Arizona and New Mexico, west to south-eastern British Columbia and eastern California.
Larvae have been reared on a variety of forbs, and is probably a general feeder on herbaceous plants and grasses.[3]
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.[4][5]
^Schmidt, B. C. (2009). "Taxonomic revision of the genus Grammia Rambur (Lepidoptera: Noctuidae: Arctiinae)". Zoological journal of the Linnean Society. 156: 507-597. doi:10.1111/j.1096-3642.2008.00496.x