Phenomenal Fireflies - Alex Wild Photography
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Photinus pyralis

Photinus pyralis

At dusk, a female firefly signals to a male from her perch in a patch of goldenrod. She can rotate her light organ to face her suitor, who in this case is in front of her. Urbana, Illinois, USA.

Photinusanimal behaviorfirefliessexual selectionLampyridaeColeoptera