Twenty-five minutes of synchronous fireflies in the Smoky Mountains at their seasonal peak. This species has a distinct 5-8 flash signal. The synchronicity is not when the insects are flashing but when they are dark, as they entire forest alternates between sparkles and complete darkness. Gatlinburg, Tennessee, USA.
During the day, fireflies hang out in vegetation. Here, a texas Photinus sits on a straggler daisy. Austin, Texas, USA.
A Photinus pyralis male pauses on a leaf prior to taking off for the evening's courtship. Urbana, Illinois, USA
