Queen Alexandra's Sulphur is a bright lemon-yellow to greenish-yellow western sulphur with clean black wing borders and an orange-pink spot on each hindwing. It is common at high elevations in mountain meadows of the Rockies and Great Basin. Like all Colias males, it puddles extensively for salts at stream margins and muddy spots.
Best time to see a Queen Alexandra's Sulphur
The best time to see a Queen Alexandra's Sulphur is June–July, when about 77% of U.S. sightings happen, based on 707 research-grade iNaturalist observations.
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Recent Queen Alexandra's Sulphur sightings near you
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