''Oeneis uhleri'', or Uhler's Arctic, is a species of butterfly in the family

Nymphalidae The Nymphalidae are the largest family of butterflies, with more than 6,000 species distributed throughout most of the world. Belonging to the superfamily Papilionoidea, they are usually medium-sized to large butterflies. Most species have a red ...

. The larvae feed on various grasses and sedges, including ''

Festuca ''Festuca'' (fescue) is a genus of flowering plants belonging to the grass family Poaceae (subfamily Pooideae). They are evergreen or herbaceous perennial tufted grasses with a height range of and a cosmopolitan distribution, occurring on every ...

'', ''

Koeleria ''Koeleria'' is a common and widespread genus of plants in the grass family, found on all continents except Antarctica and on various oceanic islands. It includes species known generally as Junegrasses. The genus was named after German botanis ...

'' and ''

Poa ''Poa'' is a genus of about 570 species of grasses, native to the temperate regions of both hemispheres. Common names include meadow-grass (mainly in Europe and Asia), bluegrass (mainly in North America), tussock (some New Zealand species), a ...

'' species. Fourth-

instar An instar (, from the Latin '' īnstar'', "form", "likeness") is a developmental stage of arthropods, such as insects, between each moult (''ecdysis''), until sexual maturity is reached. Arthropods must shed the exoskeleton in order to grow or ass ...

larvae overwinter and emerge in spring.

Subspecies

*''Oeneis uhleri uhleri'' (Colorado: eastern slope) *''Oeneis uhleri cairnesi'' Gibson, 1920 (Yukon, north-western Northwest Territories, north-eastern Alaska) *''Oeneis uhleri nahanni'' Dyar, 1904 (Northwest Territories: Mackenzie Mountains) *''Oeneis uhleri reinthali'' Brown, 1953 (Colorado: western slope) *''Oeneis uhleri varuna'' (Edwards, 1882) (British Columbia, Alberta, Saskatchewan, Manitoba, Montana, North Dakota, South Dakota, Nebraska, western Minnesota)

References

Butterflies described in 1866 Oeneis Butterflies of North America Taxa named by Tryon Reakirt {{Satyrini-stub