Orange Sulphur vs Pale Arctic Clouded Yellow

Side-by-side species comparison

Attribute Orange Sulphur Pale Arctic Clouded Yellow
Scientific Name Colias eurytheme Colias werdandi
Order Lepidoptera Lepidoptera
Family Pieridae Pieridae
Size 35-55 mm wingspan 38-46 mm wingspan
Habitat Grasslands Mountains
Diet Nectar Feeders Nectar Feeders
Regions North America Northern Scandinavia, Finnish Lapland, Kola Peninsula
Conservation Least Concern Least Concern

Orange Sulphur

Orange-yellow butterfly with black wing borders and a pink-rimmed silver spot on the hindwing underside. Often hybridizes with Clouded Sulphur.

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Did You Know?

It became vastly more abundant after European settlers introduced alfalfa farming across North America.

Pale Arctic Clouded Yellow

A pale greenish-yellow butterfly with very faint dark wing borders. It is closely associated with Scandinavian mountain habitats. The underside is pale with a small orange-ringed discal spot.

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Did You Know?

This butterfly is endemic to the Scandinavian mountains and is not found anywhere else in the world.