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Common Blue Butterfly
Appearance: Bright blue males and brown females with blue dusting.
Upper Wings: Males are bright blue; females are brown with orange spots.
Under Wings: Pale grey with black and orange spots.
Differences between Males and Females: Males are bright blue, while females are brown with orange spots.
When to See: May to September.
What They Eat: Adults feed on nectar from clover and bird’s-foot trefoil. Caterpillars eat bird’s-foot trefoil.
Migrant: Not a migrant.
Common in Selby Area: Yes, especially in grasslands.
How to Help: Plant bird’s-foot trefoil and maintain wildflower meadows.
Good Places to See: Meadows, grasslands, and roadside verges.
Interesting Fact: The Common Blue is the most widespread blue butterfly in Britain.
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