Common NameBronze CopperSeasonalityOne annual brood, the flight peaking in mid July to early August.IdentificationThe large size (wingspan generally 30 to 38 mm) and bright orange, black-spotted forewing underside will distinguish the Bronze from other coppers. There are no named subspecies.
Scientific NameLycaena hyllusCommon Name
Bronze Copper
Habitat
Wetland edges, moist meadows, and sedge fens where dock (Rumex) grows.
Seasonality
One annual brood, the flight peaking in mid July to early August.
Identification
The large size (wingspan generally 30 to 38 mm) and bright orange, black-spotted forewing underside will distinguish the Bronze from other coppers. There are no named subspecies.
Life History
The eggs, which hibernate, are white or greenish white (Scott 1986). The larva is yellowish green with a dark dorsal stripe (Layberry et al. 1998), and pupae are light brown with dark dots (Scott 1986). The adults…
The eggs, which hibernate, are white or greenish white (Scott 1986). The larva is yellowish green with a dark dorsal stripe (Layberry et al. 1998), and pupae are light brown with dark dots (Scott 1986). The adults perch on tall grasses and sedges (males wait for females), and colonies tend to be localized in distribution.
Conservation
Not of concern.
Diet Info
The larvae feed on a number of species of dock (Rumex spp.), and are usually associated with Rumex crispus, and possibly also feed on smartweed (Polygonum coccineum) (Bird et al. 1995).
Range
Occurs from the southwestern Northwest Territories south to New Mexico and Oklahoma, east to the Atlantic seaboard. Absent from the western Mountains (Opler 1999).
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Citation
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Page Citation for Lycaena hyllus
Page Citation
"Species Details - Lycaena hyllus, University of Alberta E.H. Strickland Entomological Museum." University of Alberta Museums Search Site, https://search.museums.ualberta.ca/g/2-2625. Accessed 13 Apr. 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
AuthorLayberry, Ross A.; Hall, Peter W. and J. Donald LaFontaine
TitleThe Butterflies of Canada
Publication Date1998
Pages280
AuthorScott, J. A.
TitleThe Butterflies of North America : a natural history and field guide
Publication Date1986
Pages583 pp.
Specimen Information
There are 22 specimens of this Species.
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21 results plotted on map in 11 markers. Note: Only records with latitude and longitude coordinates are plotted on map.