Firefly Festival 2024 Tennessee. For two weeks every june, fireflies in the smoky mountains perform an. Discover synchronous fireflies of the great smoky mountains in gatlinburg, tennessee:
Synchronous fireflies (photinus carolinus) are one of at least 19 species of fireflies that live in great smoky mountains national park and are one of only a couple species in north. On cool nights (below 50ยบ fahrenheit) and on misty evenings following rain,.