White-letter Hairstreak vs Baronia Swallowtail

Side-by-side species comparison

Attribute White-letter Hairstreak Baronia Swallowtail
Scientific Name Satyrium w-album Baronia brevicornis
Order Lepidoptera Lepidoptera
Family Lycaenidae Papilionidae
Size Wingspan 26-30mm 55-70 mm wingspan
Habitat Hedgerows Forests
Diet Seed Feeders Herbivores
Regions Europe, Asia Southwestern Mexico
Conservation Near Threatened Near Threatened

White-letter Hairstreak

A small dark butterfly with a distinctive W-shaped white line on the hindwing underside. Breeds on elm.

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Did You Know?

Has declined dramatically due to Dutch elm disease destroying its food plant across Europe.

Baronia Swallowtail

The most primitive living swallowtail butterfly, restricted to a small area of southwestern Mexico. A true living fossil representing a lineage over 50 million years old.

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Did You Know?

The most primitive living papilionid butterfly, with a lineage stretching back over 50 million years.