Quick answer
Houseflys feed on liquid and decaying matter, adjusting with season, age, and what is abundant in Almost everywhere humans live. That label is a preferred pattern, not every item an individual might sample.
Key takeaway
Houseflys feed on liquid and decaying matter, adjusting with season, age, and what is abundant in Almost everywhere humans live. That label is a preferred pattern, not every item an individual might sample.
Housefly diet overview
Houseflys (Musca domestica) are best summarised as Omnivore (liquid and decaying matter). Anatomy and habitat (Almost everywhere humans live) decide whether they hunt, graze, filter, scavenge, or mix strategies across the year.
How houseflys find food
Energy-rich foods are prioritised when available; lean seasons force broader diets or longer travel. Young animals may eat different items or receive food from parents.
Housefly role in the food web
As consumers in their food web, houseflys move nutrients and influence prey or vegetation.
Feeding and human conflict
Never feed wild houseflys. Habituation raises injury risk and can lead to lethal management. Captive diets must match species needs, not generic pet food rules.
Range and habitat
Houseflies inhabit Everywhere humans live, on every continent except Antarctica. Their preferred habitat includes almost everywhere humans live, 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 across Africa, Asia, Europe, North America, South America
Physical characteristics and behaviour
Adult houseflies typically measure about 0.007 m in length and weigh roughly 0.00002 kg (0 lb). They can sprint at up to ~8 km/h (5 mph) in flight when hunting or escaping predators. Houseflys are known for the familiar fly found wherever people live — social structure, daily activity, and seasonal movements all reflect pressures in their native environment.
Sources
Housefly FAQs
What do houseflys eat?
Houseflys feed on liquid and decaying matter, adjusting with season, age, and what is abundant in Almost everywhere humans live. That label is a preferred pattern, not every item an individual might sample.
What is the scientific name of the housefly?
Musca domestica — used in research and conservation listings for houseflys.
Where do houseflys live?
They are associated with Almost everywhere humans live. Local presence depends on food, cover, and human land use.
What is the conservation status of houseflys?
Listed in our guides as Least Concern. Check the IUCN Red List and national assessments for the latest formal category.