Common NameMustard WhiteSeasonalityTwo broods, flying in June and again in late July to August.IdentificationThis species and the Margined White (P. marginalis) are very similar. The Mustard White has well-marked, narrow and dark green markings along the veins of the hindwing underside, not broad, diffuse, and greyish-green as in marginalis. The second (summer) brood of oleracea often has these markings faint or absent. These two species occur together only in the foothills region. Alberta populations are the nominate subspecies (Layberry et al. 1998).
Scientific NamePieris oleraceaCommon Name
Mustard White
Habitat
Moist mixed-wood forest.
Seasonality
Two broods, flying in June and again in late July to August.
Identification
This species and the Margined White (P. marginalis) are very similar. The Mustard White has well-marked, narrow and dark green markings along the veins of the hindwing underside, not broad, diffuse, and greyish-green…
This species and the Margined White (P. marginalis) are very similar. The Mustard White has well-marked, narrow and dark green markings along the veins of the hindwing underside, not broad, diffuse, and greyish-green as in marginalis. The second (summer) brood of oleracea often has these markings faint or absent. These two species occur together only in the foothills region. Alberta populations are the nominate subspecies (Layberry et al. 1998).
Life History
The eggs are conical and yellow, with longitudinal ridges. Mature larvae are green with a dark dorsal stripe and numerous blacks dots. They are covered with short, dense hairs (Guppy & Shepard 2001). Pupae have dorsal…
The eggs are conical and yellow, with longitudinal ridges. Mature larvae are green with a dark dorsal stripe and numerous blacks dots. They are covered with short, dense hairs (Guppy & Shepard 2001). Pupae have dorsal and apical projections, and vary in colour from pale green to white to brown (Guppy & Shepard 2001).
Conservation
Not of concern.
Diet Info
The larval hostplants are unknown in Alberta. In BC, Mustard Whites feed on wild mustards (Brassicaceae) such as rock cress (Arabis spp.) (Guppy & Shepard 2001). In the right habitat, females will also lay eggs on…
The larval hostplants are unknown in Alberta. In BC, Mustard Whites feed on wild mustards (Brassicaceae) such as rock cress (Arabis spp.) (Guppy & Shepard 2001). In the right habitat, females will also lay eggs on cultivated mustards such as cabbage (Hooper 1973). Adults will also nectar at flowers of mustards (Nielsen 1999).
Range
Found throughout Canada from Newfoundland west to the western Northwest Territories, and in the northeastern United States (Opler 1999). In Alberta, this species is restricted to the boreal and foothills region (Bird…
Found throughout Canada from Newfoundland west to the western Northwest Territories, and in the northeastern United States (Opler 1999). In Alberta, this species is restricted to the boreal and foothills region (Bird et al. 1995). There is an outlying population in the Cypress Hills of Saskatchewan, but it has not been found on the Alberta side (Layberry et al. 1998).
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Citation
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Page Citation for Pieris oleracea
Page Citation
"Species Details - Pieris oleracea, University of Alberta E.H. Strickland Entomological Museum." University of Alberta Museums Search Site, https://search.museums.ualberta.ca/g/2-2555. Accessed 22 Dec. 2024.
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
AuthorNielsen, M.C.
TitleMichigan Butterflies and Skippers.
Publication Date1999
Pages248 pp
AuthorLayberry, Ross A.; Hall, Peter W. and J. Donald LaFontaine
TitleThe Butterflies of Canada
Publication Date1998
Pages280
AuthorHooper, R.R.
TitleThe Butterflies of Saskatchewan
Publication Date1973
Pages216 pp.
Specimen Information
There are 76 specimens of this Species.
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76 results plotted on map in 24 markers. Note: Only records with latitude and longitude coordinates are plotted on map.