Synonyms and other taxonomic changes
Basilarchia weidemeyerii
Identification
Above, black with a wide white postmedian band on both forewings and hindwings. Below, forewing is black with white band and white spots inside band. Hindwing is blue-grey with black cross lines inside the white band and a variable row of reddish spots inside a row of blue-grey crescents outside the white band.
Larva is hump-backed, mottled grey and white.
Range
The Rocky Mountains and adjacent lowlands.
Habitat
Found around wet places where its host plants grow.
Food
Larvae feed on Poplar (Populus spp.), Willow (Salix spp.) and other woody plants.
See Also
White Admiral is similar on the upperside, except for blue markings along the edge, but below has a much darker hindwing with extensive red markings. It is generally found in the northeast.
Lorquin's Admiral has brown wing tips, above and is much more brown on the underside. Its range encompasses the west coast.
