University of Alberta Museums Search

Scientific Name Erebia discoidalis Common Name Red-disked Alpine Habitat Moist meadows and fens. Seasonality One yearly flight, peaking in May. Identification

Eyepsots absent. Upperside dark brown with a large, diffuse dark-ochre patch in the forewing median area. Underside similar, but with a light brownish-grey frosting on outer half of hindwing and forewing apex. The…

Eyepsots absent. Upperside dark brown with a large, diffuse dark-ochre patch in the forewing median area. Underside similar, but with a light brownish-grey frosting on outer half of hindwing and forewing apex. The only other Erebia in Alberta that lacks eyespots is magdalena.

Read More + Life History

The barrel-shaped eggs are laid singly on the hostplant, and hatch in 9 - 11 days (Bird et al. 1995). Larvae, which likely overwinter, are cream-coloured with dark, diagonal lines. One of the first butterflies to…

The barrel-shaped eggs are laid singly on the hostplant, and hatch in 9 - 11 days (Bird et al. 1995). Larvae, which likely overwinter, are cream-coloured with dark, diagonal lines. One of the first butterflies to emerge in the spring along with Boreal Azures.

Read More + Conservation Not of concern. Diet Info

Larval hosts in Alberta remain to be confirmed. Larvae eat bluegrass (Poa) species, including lawn grass in captivity (Bird et al. 1995) and Canby's Bluegrass (Poa canbyi) in Manitoba (W. Krivda in Hooper 1973). Scott…

Larval hosts in Alberta remain to be confirmed. Larvae eat bluegrass (Poa) species, including lawn grass in captivity (Bird et al. 1995) and Canby's Bluegrass (Poa canbyi) in Manitoba (W. Krivda in Hooper 1973). Scott (1986) also lists P. glauca and P. alpina.

Read More + Range Alaska south to northern Montana along the Rocky Mountain front ranges, east to southern Quebec (Scott 1986). Occurs throughout Alberta, but is absent from most of the prairie region (Bird et al 1995).