For many Americans, fireflies (or lightning bugs, depending on where you live) are an iconic sign of summer, lighting up warm evenings with their twinkling glow. Fireflies are little beetles in the ...

A stunning sight during midsummer nights, fireflies are a common and easy-to-spot feature of Pennsylvania's beauty. Also known as the "lightning bug" for the way they light up the night like stars ...

It’s not easy counting fireflies. Across North America, there are an estimated 170 fireflies species, which are technically beetles in the order Coleoptera, but inventorying them is a challenge. While ...

It looks like a scene from a fairytale. Over the past few decades, firefly population have been declining due to factors like light pollution, pesticides, and habitat loss. Now there's a ray of hope: ...

KELLETTVILLE, Pa. ― Every year in late June, Peggy Butler and her husband, Ken, welcome visitors to rural northwestern Pennsylvania for the chance to glimpse the rare and beguiling Photinus carolinus.

This story originally appeared on Atlas Obscura and is part of the Climate Desk collaboration. At the third meeting of the Moriyama City Firefly Forest Museum’s eight-week Firefly Course, a ...