Palos Verdes and El Segundo blue butterflies are hard to spot. But you can see them if you know where and when to look. There are also ways to help the endangered insects.

Ohio houses 130 species of butterflies, including several extremely rare ones, plus a massive moth. Have you seen them?

The females are brown with smaller areas of blue interspersed. Luke says, 'The blue morpho makes my work a little easier. Its emergence success rate (when a butterfly safely breaks out of its ...

N. America’s tiniest butterfly species, western pygmy blue, rarely seen in Washington, ... his patient watching was rewarded with more than 100 of the tiny brown and blue butterflies.

Normally seen alone or in pairs, this tiny orange and brown butterfly thrives during warm, dry summers but is in long-term ...

The California Academy of Sciences is leading an effort to bring back the Xerces blue butterfly, which went extinct around ...

And the winner is: the Common Blue Butterfly. True to its name, the butterfly is both common and the males’ wings are a white-rimmed shiny blue on one side and beige with orange and brown spots ...

The Fender’s blue butterfly has fluttered away from the brink of extinction. The species, once so rare it was thought to be extinct, is no longer considered endangered, according to a January 11 ...

The Xerces blue butterfly vanished from San Francisco in the 1940s. Scientists just released dozens of butterflies from a related species to take its place.