Conservation Status
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Rare; provincial rank S1S2 and status is "Undetermined" because of small number of records.
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Cyclicity
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Adults found in June (Bird et al., 1995)
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Distribution
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This species is widespread across northern Canada, Alaska and Siberia (Layberry et al. 1998). In Alberta, C. chippewa has been collected from High Boreal regions.
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General Description
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"A mid-sized butterfly with a wingspan of 36 to 41 mm and with pink wing margins. The dorsal wing surface of males is bright yellow and has a wide black border. In contrast, the ventral wing surface is green and dull. Females may be white and have a narrower wing border. This species can be distinguished from other sulphurs by the lack of a black spot on the forewing, the absence of submarginal spots on the ventral hindwing and the white, ventral hindwing spot without a border. C. chippewa is formerly known as C. palano (L.), the Palaeno Sulphur. In, Alberta Butterflies and The Butterflies of Canada, chippewa is treated as a subspecies of C. palaeno.
Eggs not described.
Guppy & Shepard (2001) state that larvae are undescribed, but Opler (1999) reports that European larvae are green and have a yellow stripe on each side.
Pupae are not described."
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Habitat
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There are limited records of C. chippewa in northern Alberta from bogs and low arctic tundra.
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Life Cycle
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Unknown.
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Trophic Strategy
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Unknown for Alberta. Potential larval host plants of C. chippewa are Vaccinium uliginosum and V. caespitosum because they are used near Churchill, Manitoba (Oosting & Parshall 1978) and in Europe (Bird et al. 1995). Adults nectar feed on a variety of flowering plants (Oosting & Parshall 1978).
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Colias chippewa
provided by wikipedia EN
Colias chippewa, the heath sulphur, is a butterfly in the family Pieridae found in North America and northeastern Asia. Its range includes Alaska across northern Canada, including all the territories, and as far east as Labrador.[1] and the Russian Far East.
Flight period is from mid-June until early August.[1]
Wingspan is from 32 to 45 mm.[1]
Larvae feed on Vaccinium uliginosum and Vaccinium caespitosum.[1][2]
Habitat
Bogs and tundras.
Taxonomy
Colias chippewa may be a subspecies of Colias palaeno see Grieshuber & Lamas, 2007;[3] however, C. chippewa is considered a separate species from C. palaeno by Guppy and Shepard (2001)[4] on the basis of work by V. K. Tuzov (which they quote). He found that, in the Magadan region of Siberia, the two forms were sympatric but locally separated C. chippewa was restricted to stream-edges in dry tundra and C.palaeno was found only in low-elevation forested swamps.
Subspecies
Listed alphabetically.[2]
References
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Colias chippewa: Brief Summary
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Colias chippewa, the heath sulphur, is a butterfly in the family Pieridae found in North America and northeastern Asia. Its range includes Alaska across northern Canada, including all the territories, and as far east as Labrador. and the Russian Far East.
Flight period is from mid-June until early August.
Wingspan is from 32 to 45 mm.
Larvae feed on Vaccinium uliginosum and Vaccinium caespitosum.
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