More fireflies than usual are lighting up summer evenings in the U.S. Northeast. But scientists say the lightning bugs are ...

Recent decades have seen fireflies become scarce in certain areas, and scientists warn that some have experienced concerning ...

One glows blue when threatened. Another lights up under UV. And one flashes through the trees. All in Georgia.

On a summer evening, did you ever linger in an open field to experience the stunning light show of fireflies? How do they do ...

Reports of fewer fireflies in recent years have sparked worry for the future of the insect’s population. More sightings this ...

It would not be summer in New Jersey without fireflies. However, they are facing numerous threats. A look at our local ...

Charlotte Vonash, 6, looks for fireflies with her mother, Katelyn Vonash, during an educational program about fireflies at the Hidden Oaks Nature Center grounds in Bolingbrook on July 11, 2025.

No matter what you call them, fireflies and lightning bugs are the same thing, Iowa State University Extension entomologist Donald Lewis wrote in 2007. The names are used interchangeably to ...