Common eastern firefly | |
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Scientific classification | |
Domain: | Eukaryota |
Kingdom: | Animalia |
Phylum: | Arthropoda |
Class: | Insecta |
Order: | Coleoptera |
Suborder: | Polyphaga |
Infraorder: | Elateriformia |
Family: | Lampyridae |
Tribe: | Photinini |
Genus: | Photinus |
Species: | P. pyralis
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Binomial name | |
Photinus pyralis |
Photinus pyralis, also known by the common names the common eastern firefly[3] or big dipper firefly,[4] and sometimes called a "lightning bug",[5] is a species of flying beetle. An organ on its abdomen is responsible for its light production.[6] It is the most common species of firefly in North America, and is typically found east of the Rocky Mountains. Photinus fireflies are often confused with fireflies of the similar-sounding genus, Photuris, which are also found in North America.
These fireflies are most noticeable around twilight in the spring and summer months.[7] The common name, big dipper firefly, is due to the characteristic flight of the males, whose trajectory appears to follow a J-shape, lighting on the upswing.[3][8] During flight, this J-pattern is used alongside light flashing to attract females, who rest on vegetation and signal back to males if interested.[9] The firefly flashes are stimulated by light-activated proteins, not rhythmic impulses as originally thought.
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