ExploreInsects

Pyractomena

Pyractomena is a special type of firefly that lights up the night! These little insects are known for their glowing bodies and can be found dancing in the dark during warm months.

Habitat: Wetlands

Appearance

The Pyractomena is a soft-bodied beetle typically dark brown to black, with a reddish-orange pronotum (the shield-like plate behind its head) that often has a dark central spot. Its wing covers are somewhat flattened and dull, covering several yellow or orange light-producing segments at the end of its abdomen, which set it apart from many other beetles.

KingdomAnimaliaPhylumArthropodaClassInsectaOrderColeopteraFamilyLampyridaeGenusPyractomena

Pyractomena

Interesting facts

Each firefly species flashes its own secret blink code to find a mate!

Scientists study fireflies to learn how to make new glow-in-the-dark technologies!

Some adult Pyractomena species don't even eat at all!

Their glowing light is called 'cold light' because it makes almost no heat!

Special abilities

Pyractomena can produce a glowing light from its abdomen because of special chemicals, helping them attract mates in the dark.

Pyractomena larvae are expert predators, using their sharp mandibles to hunt small invertebrates in the soil and under leaf litter.

Pyractomena has defensive steroids in its body that makes them taste bitter to predators, which helps them avoid being eaten.

Measurements & details

Wingspan: 16-30 mm
Size: 8-15 mm
Lifespan: 14-30 days
Flight Speed: 1 km/h
Leg Count: 6

Diet & Feeding

While adults may not eat, their larvae are fierce predators of small soft-bodied creatures!

Age differences: Larvae are active predators, injecting digestive fluids into their prey, while adults typically do not feed or consume nectar.

Primary Foods

snails
slugs
earthworms
other insect larvae

Foraging Method

Ambush

Ecological connections

eats

Common Earthworm

Lumbricus terrestris

Pyractomena larvae prey on these worms in the soil.

eats

Spanish Slug

Arion vulgaris

Larval fireflies paralyze and consume these soft-bodied gastropods.

eaten by

Little Brown Bat

Myotis lucifugus

Bats are nocturnal predators that will hunt flying adult fireflies.

eaten by

European Garden Spider

Araneus diadematus

Adult fireflies can become entangled in their sticky spiderwebs.

Traits

Social

Social animals live in organized groups, cooperating for survival benefits such as foraging, defense, and raising offspring.

Insectivorous

This trait identifies organisms whose diet primarily consists of insects and other small invertebrates.

Pollinator Magnet

Describes plants that are particularly attractive and beneficial to a wide range of pollinating organisms.

Wetland

This habitat trait identifies species found in wetlands, which are areas of land saturated with water, either permanently or seasonally, including marshes, swamps, and bogs.