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 ...

Tours of the grasslands at Fort Indiantown Gap, home to the only population of the rare Regal Fritillary butterfly in the eastern United States, are set for four days in July. To catch a glimpse of ...

The only place to find the regal fritillary butterfly in the East Coast is at Fort Indiantown Gap. It's a rare treat to spot what the military training site compares to a monarch butterfly dipped in ...

You are able to gift 5 more articles this month. Anyone can access the link you share with no account required. Learn more. I love butterflies and have always grown perennials that are good ...

The biggest population of the regal fritillary butterfly in the country is at Fort Indiantown Gap. The military training site compares the regal fritillary to a Monarch butterfly dipped in chocolate.

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.

Viewed from Holme Lacy, across the Wye valley, the woods rising on hillocks along the eastern edge of the floodplain look uninspiring, dominated by dark regimented conifers. My heart sinks: how can ...

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 ...