Phenomenal Fireflies - Alex Wild Photography
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Photinus pyralis is the most common firefly in eastern North America. Characteristically, the males fly at dusk with distinct upward swoops.

Urbana, Illinois, USA

Photinus pyralis is the most common firefly in eastern North America. Characteristically, the males fly at dusk with distinct upward swoops. Urbana, Illinois, USA

Photinus pyralisfireflyLampyridaebioluminescence