The Appalachian tiger swallowtail butterfly is a rare breed: Some 100,000 years ago, two different species mated and their hybrid offspring gave rise to the Appalachian species, researchers have found ...

Every summer in southeastern Pennsylvania, I see several species of pretty butterflies in abundance, but at different times, prolonging the beauty of the butterfly season. Though they are here in good ...

BALDWIN -- The Karner blue butterfly is one finicky flutterer. Nature buffs won't see this tiny, ornate insect just anywhere -- caterpillars feed only on wild lupine plants; adults are found in flat ...

Blather's Blabber: Seen flapping in the sun, common butterflies can be identified by black spots on their white wings. To the human eye, both males and females look white, but there are actually ...

Next time you’re gardening in your backyard, don’t be surprised if you spot peacocks and zebras. Butterflies, that is. White peacock and zebra heliconian were the second and third most-common species ...

A unique butterfly breeding experiment gave researchers an opportunity to study the physical and genetic changes underlying the evolution of structural color, responsible for butterflies' iridescent ...