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Species Colias interior - Pink-edged Sulphur - Hodges#4220

Pink-edged Sulphur - Colias interior Pink-edged Sulphur - Colias interior some sort of sulphur - Colias interior - male Pink-edged Sulphur - Colias interior Pink-edged Sulphur butterfly ? - Colias interior Is this a Pink-edged Sulphur? - Colias interior - male suphur with pink edge on Lake Superior - Colias interior Pink-edged Sulphur - Colias interior - male
Show images of: caterpillars · adults · both
Kingdom Animalia (Animals)
Phylum Arthropoda (Arthropods)
Subphylum Hexapoda (Hexapods)
Class Insecta (Insects)
Order Lepidoptera (Butterflies and Moths)
Superfamily Papilionoidea (Butterflies and Skippers)
Family Pieridae (Whites, Sulphurs, Yellows)
Subfamily Coliadinae (Sulphurs and Yellows)
Genus Colias
Species interior (Pink-edged Sulphur - Hodges#4220)
Hodges Number
Wing span: 1 1/2 - 2 5/8 inches (3.9 - 6.6 cm).(2)
Similar to other yellow Colias species; has no postmedian spots, single spot on hindwing surrounded by pink.

"Both sexes with conspicuous pink wing edges. Male yellow; female yellow or white (very rarely). Upperside of male with black border; border on female may be incomplete or only seen at tip of wing. Underside of hindwing clear yellow with single silver cell spot circled in pink." (2)
Boreal forest region from BC, Oregon to Newfoundland, Virginia
Open areas - rock outcrops, burns, clear cuts, etc.

"From British Columbia and eastern Oregon east through the Great Lakes area to northern New England. Isolated population in central Appalachians of northeast Pennsylvania, western Maryland, eastern West Virginia, and northwest Virginia." (2)
One flight from June-August.(2)
Larvae eat blueberries (Vaccinium spp.)
Life Cycle
Males patrol with a slow flight for females. Eggs are laid in midsummer on blueberry leaves, and young caterpillars overwinter. Most feeding occurs the following spring.(2)
Print References
Brock and Kaufman, p. 62 (1)
Works Cited
1.Butterflies of North America (Kaufman Focus Guides)
Jim P. Brock, Kenn Kaufman. 2003. Houghton Mifflin Co.