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.

Researchers will soon find out the details of exactly which firefly species are present and their distribution patterns ...

PHILADELPHIA (WPVI) -- Did you know that the firefly is the Pennsylvania state bug? Fireflies, or lightning bugs as many people call them, have been lighting up our summer nights for as long as we can ...

Photuris pensylvanica — better known as the Pennsylvania firefly or, as most Philadelphians call it, the lightning bug — is out in full force this summer. Reports suggest that central and rural parts ...

PENNSYLVANIA (WHTM) — The Keystone State has its own flower, tree, dog, song, and bird. But did you know that the state has its own designated insect? The Pennsylvania Firefly, also known as a ...

TIONESTA, Pa. — A bright spot of summer may be going dark across the state, as many are noticing firefly populations declining, taking the glow out of the night sky. It's a question the founders of ...

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 firefly ...