The different species of fireflies

Answer 1

PhoturinaeIf you live in North America, these are the fireflies you're probably most familiar with. Not all fireflies in this subfamily light up, but those that do are generally divided into three closely related species.

Photinus fireflies tend to be the most common of this group; about half an inch long, these produce yellow-green light.

Photuris fireflies are larger-almost an inch long-and produce a darker green light. They're very difficult to distinguish from Photinus from their light alone, even for other fireflies; female Photuris often mimic mating flashes from female Photinus fireflies to attract and eat Photinus males. Because of this, Photuris species are sometimes called "femme fatale" fireflies.

Pyractomena fireflies produce a yellow-amber flicker that looks a bit like a spark from a campfire.

LUCIOLINAELuciolinaeThis is the largest subfamily of fireflies, with member species scattered throughout Eurasia, Europe, East Asia, and Australia. The fireflies within this subfamily all produce light-and flash rather than emit a continuous glow. Here are a few genera of note within this group.

Peroptyx. Species within this group are mainly found in tropical Asia. Groups of fireflies will synchronize their flashes until thousands are all flashing to the same rhythm, producing a stunning display.

Luciola. These fireflies are sometimes known as "Japanese fireflies," although they're also found in Asia and more rarely in southern Europe and Africa. In Japanese traditional culture, they are believed to represent the souls of the dead.

CYPHONOCERINAECyphonocerinaeThis subfamily of fireflies includes two genera that live in North America and Eurasia. They're notable because scientists believe they are the most primitive species of fireflies in existence. One genus within this group displays very weak light, while the other does not light up at all. LAMPYRINAELampyrinaeSometimes referred to by taxonomists as a "catch-all" subfamily classifying fireflies that don't quite fit into other groups, the species in this subfamily live generally in more temperate northern regions of the world, although a few species are tropical. The group contains both flashing and continuous-glow fireflies. Some larvae species within this group climb trees to feed on snails and bugs.

Lampyris is a genus of firefly within this subfamily found primarily in Britain, and they thrive in old-growth grasslands in soil with high concentrations of limestone and chalk. Only the males fly; the females are larviform, and only they glow. Females crawl onto blades of grass and low vegetation at dusk and emit a yellow-green continuous light to attract mates. Their vernacular name is "glow worm."

Phausis reticulata also known as blue ghost fireflies. These tiny fireflies are common throughout the southeastern US and are known as the "blue ghost" because they do not flash but glow with an eerie blue or green light. Females of the blue ghost are pale yellow or white in color and lack wings (right in photo below). Males do have wings and can fly (left in photo below). Since they have not be studied extensively little is still known about them and their habits.

OTETRINAEOtetrinaeScientists haven't decided whether this group should be classified as fireflies; while they share many characteristics of other species, members of the group Otetrinae don't emit light. They're considered very primitive forms of fireflies, and live primarily in Eurasia and North America.