Phenomenal Fireflies - Alex Wild Photography
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Photinus pyralis, the big dipper firefly, is unusual in displaying at dusk rather than in complete darkness.

Urbana, Illinois, USA

Photinus pyralis, the big dipper firefly, is unusual in displaying at dusk rather than in complete darkness. Urbana, Illinois, USA

photinus pyralisLampyridaefireflybioluminescenceinsect flightColeoptera