Fall is the season of Gulf Fritillaries in the Lowcountry. These medium-sized orange butterflies are often confused with Monarchs (Danaus plexippus), but it’s fairly easy to tell the difference.

At Fort Indiantown Gap in northern Lebanon County, a vast stretch of grassland houses the only population of the rare regal fritillary butterfly in the eastern United States. Several of these ...

FORT McCOY, Wis. -- The regal fritillary butterfly has been sighted at Fort McCoy. Tim Wilder, endangered species biologist for Fort McCoy's Natural Resources Branch (NRB), said that at first glance ...

FORT INDIANTOWN GAP, Pa. — Fort Indiantown Gap announced Friday that the Pennsylvania Department of Military and Veterans Affairs will be conducting free guided tours of the only population of the ...

An orange and black species of butterfly native to the Kansas prairies is declining in population, and federal wildlife officials want to protect it. The western regal fritillary butterfly, which ...

In a year when a “butterfly emergency” has been declared, one species in Northern Ireland is bucking the trend. The marsh fritillary made its presence felt in autumn, when the caterpillars spin ...

The Fort Indiantown Gap military base in Lebanon County is home to the world's only surviving population of the eastern regal fritillary, a large butterfly that the U.S. Fish and Wildlife Service ...

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Where the monarch is the king of butterflies, the "Queen of the Prairie" is needing help. Monarch butterflies can travel long distances, like to Mexico, but regal fritillary butterflies stick to ...