Butterflies and Moths of North America

collecting and sharing data about Lepidoptera

Macoun's Arctic
Oeneis macounii (W.H. Edwards, 1885)

Family: Nymphalidae
Subfamily: Satyrinae
Identification: Upperside is bright orange-brown with black borders on both wings. Two black eyespots on forewing, one on hindwing. Male lacks a patch of black scales on the forewing. Underside of hindwing is cloudy gray with a distinct dark median band.
Wing Span: 2 1/4 - 2 3/4 inches (5.7 - 7 cm).
Life History: Males perch in glades to watch for receptive females. Caterpillars require 2 years to complete development; hibernating as young caterpillars the first winter, and as mature ones the second winter.
Flight: One brood from early June to early July. East of southeast Manitoba, adults fly in even-numbered years; westward, in odd-numbered years.
Caterpillar Hosts: Probably sedges (Carex species).
Adult Food: Occasionally flower nectar.
Habitat: Openings in forests of western jack or lodgepole pine.
Range: Across southern Canada from British Columbia through the prairie provinces to northern Minnesota, northern Michigan, and central Ontario.
Conservation: Not usually required.
NCGR: G5 - Demonstrably secure globally, though it may be quite rare in parts of its range, especially at the periphery.
Management Needs: None reported.
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