Pennsylvania Synchronous Firefly Season

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Nature's Light Show

Enjoy a mesmerizing light show from Mother Nature! The Pennsylvania Synchronous Firefly Season lasts from the summer solstice into the second week of July, with annual mating displays of over fifteen different species of firefly in the Allegheny National Forest. The views of the Synchronous firefly and the unique "Chinese Lantern" firefly along the Tionesta Creek are mesmerizing. The P. Carolinus firefly is unique in that its flash patterns are in sync with each other, so they appear to be a string of Christmas lights hanging in the forest. Synchronous species of fireflies are rare, and can only be seen in a handful of places throughout the world. The P. Carolinus breed of Synchronous firefly was only recently discovered in the Allegheny National Forest in 2012 by a team of biologists.

Sparks in 2024
The 2024 PA Firefly Festival Events have been scheduled. The 12th Annual PA Firefly Festival nights will be Friday, June 28 and Saturday, June 29. The Glow & Know Campouts will take place on Saturday, June 22 and Tuesday, June 25. There will again be lottery for registration. The PAFF Lottery Applications will be available through March 31 at the PAFF website. The drawing will take place on March 31 and selected names from the randomized lists will be notified on April, 1 2024. More information can be found at the PA Firefly Festival website,

Things to do

Nature's Light Show

One of the best places for firefly viewing annual Pennsylvania Firefly Festival in June. To avoid the crowds, follow the event website for other special programs, or see the fireflies for yourself!