Turn out your lights for lightning bugs

Warm summer months bring lightning bugs out in droves. Some are hoping to preserve the illuminating critters.

By

National News

June 22, 2022 - 2:06 PM

The Photinus pyralis, otherwise known as the common eastern firefly. Photo by Art Farmer / Wikipedia.org

If you are a lightning bug fan who didn’t get tickets to this year’s Pennsylvania Firefly Festival in the Pennsylvania Wilds, you’re in good company.

Unlike the early days, when any and all were welcome to come watch the rare synchronous display of male Photinus carolinus blinking in unison — it drew more than 1,000 people on one night in 2016 — the annual fest held on Peggy and Ken Butler’s farm in Kelletville, Forest County, now allows just 100 attendees over two days. Which explains why the 2022 festival sold out in less than 5 minutes on May 1.

People came from all across the U.S. and even overseas (fireflies are especially popular in Asia).

“It was just unmanageable on our end with our small group of volunteers,” says Ms. Butler, who is a speech and language pathologist for the Forest County School District.

And with so many feet tromping through the woods at one time, the crowds endangered the unique environment that makes this patch of Pennsylvania woods near Tionesta one of just a handful of places across the globe to find synchronous fireflies.

“We realized there were way too many people, causing habitat destruction,” says festival board member Jeff Calta of Chicora.

Scientists warned against exactly that when the rare beetles were discovered there in 2012 by a group of environmentally savvy campers, and the idea of a festival was born.

Perhaps fortuitously, social distancing restrictions put in place during the pandemic allowed the festival  — created as a nonprofit organization in 2013 — to “hit the reset button” while also making it a more intimate experience for those lucky enough to get one of the $50 tickets.

Disappointing, for sure, but you can still support the festival’s mission through a new initiative launched this year.

The “Lights Out for Lightning Bugs” campaign kicked off Sunday with the goal of promoting the conservation and protection of fireflies across the state. To help the bugs find each other in your yard and reproduce, festival organizers ask people to turn off or shade their porch and outside lights for at least through Saturday.

MUCH OF the world is losing its firefly populations due to light pollution, Calta notes, and the indiscriminate use of pesticides and insecticides is also taking a toll on the bug the state of Pennsylvania designated its official insect in 1974.

Like all beetles, fireflies goes through four life stages over two years  — egg, larva, pupa and adult. They spend most of that time underground in lawns, grassy patches and forest where you’re unlikely to see them. So soil health is very important with regards to their development.

In addition, adults live only two weeks and females tend to be poor flyers, so they stay in the grass or low shrubbery, where feet can crush them.

Light pollution is a bigger danger. Light of any color — whether from a porch light or the artificial illumination created by urban sprawl  — essentially shuts down the flashing replies of females to attract mates.

If fireflies are blinded by lights (especially white and amber lights) or their flashes are overpowered by extensive and prolonged light intrusion, they cannot find a mate and the next generation is lost.

“The adult firefly is designed for one thing only — mating,” says Calta, a student of fireflies who has helped the Butlers for several years with the festival. “They don’t eat or drink. They just get up at night to do their flying and mate.”

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