Species Detail

Red-disked Alpine

Erebia discoidalis (W. Kirby, 1837)

JPG -- species photo

Attributes of Erebia discoidalis


Family: Brush-footed Butterflies (Nymphalidae)

Subfamily: Satyrs and Wood-Nymphs (Satyrinae)

Identification: Wings are brownish black and lack eyespots. Forewing has a large chestnut red patch both above and below. Underside of hindwing is mottled gray and brown.

Life history: Adults fly slowly near the ground. Males patrol for females with a weak flight. Fourth-stage caterpillars hibernate; probably biennial.

Flight: One brood from early May to mid-June.

Wing span: 1 1/2 - 1 15/16 inches (3.8 - 4.9 cm).

Caterpillar hosts: Bluegrasses (Poa species).

Adult food: Flower nectar.

Habitat: Large, open, grassy bogs; other areas with acidic soils.

Range: Holarctic. North America from Alaska south and east to southern Alberta, northern Montana, northern Wisconsin, northern Michigan, and southern Quebec.

Conservation: Not usually required.

NatureServe Global Status: G5 - Demonstrably secure globally, though it may be quite rare in parts of its range, especially at the periphery.

Management needs: None reported.

Documented Records for Erebia discoidalis



Display alternate map range: