Oeneis uhleri

(Reakirt, 1866)

Uhler's Arctic

Species Guides

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Oeneis uhleri, commonly known as Uhler's Arctic, is a in the Nymphalidae. It is a member of the 'Arctic' group of butterflies, named for their association with high-elevation and northern . The species exhibits a with fourth-instar larvae . Larvae feed on specific grass including Festuca, Koeleria, and Poa. The species is distributed across western North America from Alaska to northern New Mexico, with multiple recognized occupying distinct geographic ranges.

Oeneis uhleri by (c) Nick Block, some rights reserved (CC BY), uploaded by Nick Block. Used under a CC-BY license.Oeneis uhleri by (c) Nick Block, some rights reserved (CC BY), uploaded by Nick Block. Used under a CC-BY license.Oeneis uhleri down250686 by Atylotus. Used under a CC BY-SA 4.0 license.

Pronunciation

How to pronounce Oeneis uhleri: /ˈiːnɪs ˈjuːləriː/

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Images

Habitat

Slopes in dry, open bunch grass areas, tundra, and openings in pine forests. Associated with high mountain areas and northern latitudes.

Distribution

North America: north-eastern Alaska, Yukon, western Northwest Territories, central Alberta south through the Rocky Mountains to northern New Mexico, and east through the Canadian prairie provinces to western Minnesota.

Seasonality

active in summer. Fourth-instar larvae overwinter and emerge in spring.

Diet

Larvae feed on various grasses and sedges, specifically including Festuca, Koeleria, and Poa .

Host Associations

  • Festuca - larval food plantgrass
  • Koeleria - larval food plantgrass
  • Poa - larval food plantgrass

Life Cycle

Fourth-instar larvae overwinter and emerge in spring. (one per year).

More Details

Subspecies

Six are recognized with distinct geographic distributions: O. u. uhleri (Colorado: eastern slope), O. u. cairnesi (Yukon, north-western Northwest Territories, north-eastern Alaska), O. u. nahanni (Northwest Territories: Mackenzie Mountains), O. u. reinthali (Colorado: western slope), and O. u. varuna (British Columbia, Alberta, Saskatchewan, Manitoba, Montana, North Dakota, South Dakota, Nebraska, western Minnesota).

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Sources and further reading