The Bartram’s scrub-hairstreak may be small enough to fit on a fingertip, but it has become one of North America's most ...

The St. Francis Satyrs now number around 1,000 and are found in an area of less than 20 acres. Melissa McGaw Nick Haddad is a tall, quick-to-smile Minnesotan. But lest the easy grin fool you, he is ...

The last known captive Sacramento Mountains checkerspot caterpillar has died, raising new concerns about the future of one of New Mexico's rarest butterflies and the health of mountain ecosystems.

Spooky season is in full swing over in Missouri. A biologist recently spotted and photographed a super rare white monarch butterfly in the exact same spot where she previously saw a more common orange ...

"It almost feels like the landscape is healing." ...

A conservation charity has planted elm trees, which are the preferred habitat of the white-letter hairstreak butterfly Rare butterflies have been spotted after a group of volunteers planted hundreds ...

APPLE VALLEY, Minn. (AP) — The 20 tiny butterfly larvae being cared for by a Minnesota Zoo biologist could represent the last hope for a species that used to be ubiquitous across the state’s prairies.

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