Iowa Seeing More Fireflies This Summer Than Ever Before

If you grew up in Iowa, one of the best parts of summer was hunting for fireflies at dusk. I grew up on a farm, and during the evening, our yard would light up with what we called 'lightning bugs'. Despite recent news about the declining number of fireflies, you won't find a shortage of them in Iowa this year.

Why Are Fireflies Decreasing in Number?

The Cedar Rapids Gazette cites a report that points out that there are 18 species of fireflies in the U.S. that are threatened with extinction. The main reasons for the decrease in numbers include habitat loss, light pollution, and climate change.

What is the Most Common Kind of Firefly in Iowa?

The Gazette reports that the most common kind of firefly in Iowa is called the Big Dipper. The male firefly flashes around two feet from the ground, dips down slightly, and then goes up, making a 'J' shape. And who doesn't remember catching fireflies and keeping them in a jar? Experts say don't keep them there long, as they can't survive even if you provide air holes.

What is the Firefly Population in Iowa This Summer?

Zac Schumm, an Iowa State University insect diagnostician, tells the Gazette that firefly numbers in Iowa this summer are higher than usual, and experts aren't exactly sure why. According to data collected by Jim Durbin of Marion and his website, Insects of Iowa, firefly sightings have increased from 2024 anywhere from 4 to 10 sightings.

Experts say they're still trying to figure out why conditions seem to be perfect this summer for fireflies. Whatever the reason, enjoy the glow while it lasts!