Species Details

Epargyreus clarus

University of Alberta E.H. Strickland Entomological Museum Read more about this collection »

Common NameSilver-spotted Skipper SeasonalityAdults are most often encountered between late June and early July. IdentificationThis is Alberta's largest skipper; its 44 to 60 mm wingspan, and the large, silver hindwing patch make it very distinctive. The nominate subspecies occurs in Alberta (Bird et al. 1995).

Scientific Name Epargyreus clarus Common Name Silver-spotted Skipper Habitat River valleys and badlands in the prairie and parkland region. Seasonality Adults are most often encountered between late June and early July. Identification This is Alberta's largest skipper; its 44 to 60 mm wingspan, and the large, silver hindwing patch make it very distinctive. The nominate subspecies occurs in Alberta (Bird et al. 1995). Life History
There is one yearly brood, and mature larvae are green with black bands and a dark brown head. Larvae construct shelters out of the host plant leaves, at first cutting and folding part of the leaf over them, but tying…
There is one yearly brood, and mature larvae are green with black bands and a dark brown head. Larvae construct shelters out of the host plant leaves, at first cutting and folding part of the leaf over them, but tying several leaves together as larvae grow larger (McCabe & Post 1977). Pupae hibernate in leaf nests near the ground, often on the foodplant itself (Layberry et al. 1998). The egg is greenish and round. Males are aggressive fliers, and often chase one another (Bird et al. 1995). The Silver-spotted skipper is uncommon in Alberta, and occurs in local colonies.
Conservation May be sensitive to valley flooding, but currently secure. Diet Info
The larvae feed on wild licorice (Glycyrrhiza lepidota) in Alberta (Bird et al. 1995). Other legume species have also been reported from the eastern parts of this skipper's range (McCabe & Post 1977, Layberry et al. 1998).
The larvae feed on wild licorice (Glycyrrhiza lepidota) in Alberta (Bird et al. 1995). Other legume species have also been reported from the eastern parts of this skipper's range (McCabe & Post 1977, Layberry et al. 1998).
Range
Found throughout most of the continental United States, and in southern Canada west to southern BC (Opler 1999). The northernmost population in North America is associated with patches of the larval hostplant in the…
Found throughout most of the continental United States, and in southern Canada west to southern BC (Opler 1999). The northernmost population in North America is associated with patches of the larval hostplant in the North Saskatchewan river valley in Edmonton.
Epargyreus clarus
Epargyreus clarus

Citation

Page Citation for Epargyreus clarus

Page Citation

"Species Details - Epargyreus clarus, University of Alberta E.H. Strickland Entomological Museum." University of Alberta Museums Search Site, https://search.museums.ualberta.ca/g/2-2581. Accessed 18 Jun. 2024.

References

Specimen Information

There are 4 specimens of this Species.

4 results plotted on map in 4 markers.
Note: Only records with latitude and longitude coordinates are plotted on map.

UASM99253 - Epargyreus clarus

University of Alberta E.H. Strickland Entomological Museum

Place CollectedCanada: Alberta, Lethbridge Date Collected1977-06-05

UASM99254 - Epargyreus clarus

University of Alberta E.H. Strickland Entomological Museum

Place CollectedCanada: Alberta, Raymond Date Collected1966-06-05

BIRD23092 - Epargyreus clarus

University of Alberta E.H. Strickland Entomological Museum

Place CollectedCanada: Alberta, Dry Island Buffalo Jump Provincial Park Collected ByMorrow, D. Date Collected2008-07-06

BIRD36508 - Epargyreus clarus

University of Alberta E.H. Strickland Entomological Museum

Place CollectedCanada: Alberta, Medicine Hat Collected ByScott, J.; Roy, M. Date Collected2013-06-13

Adult Seasonal Distribution