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Common Blue

7.08

Good

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Butterfly Blue Europe Grassland Lycaenidae Polyommatinae

description Common Blue Overview

The Common Blue (Polyommatus icarus) is a small butterfly belonging to the Lycaenidae family, predominantly found across Europe and temperate Asia. It exhibits significant sexual dimorphism; males possess vivid violet-blue upper wings, whereas females are primarily brown with a variable amount of blue scaling. This species thrives in grassy habitats, including meadows, heaths, and roadside verges, where its primary larval food plants, such as bird's-foot trefoil, grow abundantly. It is recognized as one of the most widespread and frequently encountered blue butterflies in the United Kingdom.

insights Ranking position

Common Blue ranks #118 of 310 in the Butterfly ranking, behind White Peacock, ahead of Gulf Fritillary.

help Common Blue FAQ

How good is Common Blue?

Common Blue scores 7.08/10 (Good) on Lunoo, making it a well-rated option in the Butterfly category. Very familiar European blue with attractive males and high abundance, a benchmark lycaenid despite commonness.

What are the best alternatives to Common Blue?

See our alternatives page for Common Blue for a ranked list with scores. Top alternatives include: Large Blue, Small Blue, Xerces Blue.

How does Common Blue compare to Large Blue?

See our detailed comparison of Common Blue vs Large Blue with scores, features, and an AI-powered verdict.

Is Common Blue worth it in 2026?

With a score of 7.08/10, Common Blue is a solid option in Butterfly. See all Butterfly ranked.

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