Coleoptera: Beetles - Alex Wild Photography
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A male firefly, Photinus pyralis, signals to females with an illuminated upward swoop.

Urbana, Illinois, USA

A male firefly, Photinus pyralis, signals to females with an illuminated upward swoop. Urbana, Illinois, USA

Photinus pyralisfireflyfirefliesbioluminescenceflightinsect flyingLampyridaewings