|scientific name Oeneis jutta |
common name Jutta Arctic
In or near peat bogs and fens.
One flight per year, peaking in mid June to early July.
Upperside chestnut brown with a row of rust-orange submarginal patches, sometimes forming a band; black submarginal eyespots. Males with a slightly darker forewing discal patch. Underside finely striated with black and light grey, median band usually poorly defined. The only Oeneis with orange-bordered upperside eyespots.
Subspecies chermockorum occurs in the mountain region, and ridingiana in the boreal forests.
Unknown in Alberta. The pale green larvae have green lines and reddish hairs. The yellow white eggs are laid on various substrates near the host. Larvae take two seasons to mature, and adults are present only in alternate years in many localities (Scott 1986). The Jutta Arctic is significantly more common in odd-numbered years in the boreal forests of Saskatchewan and Alberta (Hooper 1973, Kondla 1992).
Not of concern.
The larval hosts are unconfirmed in western Canada. Cotton Grass (Eriophorum vaginatum) is used in MI (Masters 1973). Adults nectar at Labrador Tea (Hooper 1973).
Jutta's current taxonomic standing has it occuring from Scandinavia across Siberia to Alaska and Newfoundland, south to the Great Lakes and southwest Alberta. Isolated populations are found in the Rocky Mountain States (Scott 1986).
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