Common NameNorthern MarbleSeasonalityOne brood per year, adults generally flying from early June to late July.IdentificationThe Northern Marble is most similar to the Large Marble (E. ausonides), but is slightly smaller, with a wingspan of 24 - 36 mm compared to 30 - 48mm. The green marbling on the hindwing underside is more extensive, and the pattern is more broken rather than banded. There are no described subspecies. This species was described from specimens collected at Rock Lake near Jasper (Guppy & Shepard 2001).
Scientific NameEuchloe creusaCommon Name
Northern Marble
Habitat
Open coniferous woodland in the mountains and northeastern boreal region.
Seasonality
One brood per year, adults generally flying from early June to late July.
Identification
The Northern Marble is most similar to the Large Marble (E. ausonides), but is slightly smaller, with a wingspan of 24 - 36 mm compared to 30 - 48mm. The green marbling on the hindwing underside is more extensive, and…
The Northern Marble is most similar to the Large Marble (E. ausonides), but is slightly smaller, with a wingspan of 24 - 36 mm compared to 30 - 48mm. The green marbling on the hindwing underside is more extensive, and the pattern is more broken rather than banded. There are no described subspecies. This species was described from specimens collected at Rock Lake near Jasper (Guppy & Shepard 2001).
Life History
The immature stages are undescribed. Very little of the Northern Marble's biology is known.
Conservation
Not of concern.
Diet Info
The only recorded larval food plant is Lance-leaved Draba (Draba cana) at Moraine Lake (Bird et al. 1995).
Range
Alaska south along the Rocky Mountains to western Montana (Opler 1999). Boreal populations also occur from St Albert, SK north to Great Bear Lake, NWT (Layberry et al. 1998)
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Citation
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Page Citation for Euchloe creusa
Page Citation
"Species Details - Euchloe creusa, University of Alberta E.H. Strickland Entomological Museum." University of Alberta Museums Search Site, https://search.museums.ualberta.ca/g/2-2551. Accessed 11 Feb. 2025.
References
AuthorOpler, Paul A.
TitleA field guide to western butterflies.
Publication Date1999
Pages540
AuthorBird, C. D., G.J. Hilchie, N.G. Kondla, E.M. Pike and F. A. H. Sperling
TitleAlberta Butterflies
Publication Date1995
Pages349
AuthorGuppy, Crispin S. and Jon H. Shepard
TitleButterflies of British Columbia.
Publication Date2001
Pages414
AuthorLayberry, Ross A.; Hall, Peter W. and J. Donald LaFontaine
TitleThe Butterflies of Canada
Publication Date1998
Pages280
Specimen Information
There are 52 specimens of this Species.
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52 results plotted on map in 22 markers. Note: Only records with latitude and longitude coordinates are plotted on map.