Glowing Click Beetles or Fire Beetles
Supposedly the brightest bioluminescent insect in the World - Many times brighter than fireflies. They glow super bright while flying around our orchard.
Pyrophorus noctilucus (Coleoptera: Elateridae)
This is the largest (4cm, 1¾") bioluminescent insect and it has been reported as having the greatest surface brightness, 45 millilamberts (or 1/40 of a candle). The light emitted from the 2 spots on the thorax is actually bright enough to read by (if you hold the beetle close to the lines that you are reading that is).
The beetles are common in forested areas and can be seen flying around just after dusk. The sight of several beetles winding through the trees is quite spectacular. The flight season is from April through June.
Photograph by Matt Brislawn
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