Quick answer
Fireflys (Lampyridae) are insects found across Africa, Asia, Europe, North America, South America, Oceania. The glowing beetle of warm summer nights. Adults typically weigh roughly 0.00003 kg (0 lb), reach speeds of up to 8 km/h (5 mph), and live Adults ~2–4 weeks; larvae up to a year or more. They feed on larvae carnivorous; many adults eat little or nothing and are listed as Least Concern on the IUCN Red List. Temperate and tropical regions worldwide, especially the Americas and Asia, in meadows, forests, and marshes.
Key takeaway
Fireflys (Lampyridae) are insects found across Africa, Asia, Europe, North America, South America, Oceania. The glowing beetle of warm summer nights. Adults typically weigh roughly 0.00003 kg (0 lb), reach speeds of up to 8 km/h (5 mph), and live Adults ~2–4 weeks; larvae up to a year or more. They feed on larvae carnivorous; many adults eat little or nothing and are listed as Least Concern on the IUCN Red List. Temperate and tropical regions worldwide, especially the Americas and Asia, in meadows, forests, and marshes.
Firefly overview
Firefly (Lampyridae) is a insect listed here as Least Concern. Typical weight about 0.00003 kg; lifespan around Adults ~2–4 weeks; larvae up to a year or more.
Firefly ecology
Diet: Larvae carnivorous; many adults eat little or nothing. Habitat: Meadows, forests, marshes, gardens. Movement and social systems reflect those pressures across the native range.
Fireflys and people
Learn before you travel or keep related pets. Wild fireflys are not toys; captive care needs species-specific husbandry.
Status and further reading
Conservation label in our guides: Least Concern. See the full Firefly profile for taxonomy, FAQs, and related topic guides on this site.
Range and habitat
Fireflies inhabit Temperate and tropical regions worldwide, especially the Americas and Asia, in meadows, forests, and marshes. Their preferred habitat includes meadows, forests, marshes, gardens, where they find food, shelter, and breeding sites. Population density varies with prey availability, water access, and human disturbance. Protected areas and intact corridors remain essential for long-term persistence acros
Physical characteristics and behaviour
Adult fireflies typically measure about 0.015 m in length and weigh roughly 0.00003 kg (0 lb). They can sprint at up to 8 km/h (5 mph) when hunting or escaping predators. Fireflys are known for the glowing beetle of warm summer nights — social structure, daily activity, and seasonal movements all reflect pressures in their native environment.
Sources
Firefly FAQs
What are key facts about fireflys?
Fireflys (Lampyridae) are insects found across Africa, Asia, Europe, North America, South America, Oceania. The glowing beetle of warm summer nights. Adults typically weigh roughly 0.00003 kg (0 lb), reach speeds of up to 8 km/h (5 mph), and live Adults ~2–4 weeks; larvae up to a year or more. They feed on larvae carnivorous; many adults eat little or nothing and are listed as Least Concern on the IUCN Red List. Temperate and tropical regions worldwide, especially the Americas and Asia, in meadows, forests, and marshes.
What is the scientific name of the firefly?
Lampyridae — used in research and conservation listings for fireflys.
What do fireflys eat?
Fireflys have a two-stage diet: larvae are carnivorous, while many adults eat little or nothing, with seasonal and regional variation in Meadows, forests, marshes, gardens.
Where do fireflys live?
They are associated with Meadows, forests, marshes, gardens. Local presence depends on food, cover, and human land use.
What is the conservation status of fireflys?
Listed in our guides as Least Concern. Check the IUCN Red List and national assessments for the latest formal category.