Quick answer
Giant House Spiders feed on flies, moths and and other invertebrates, adjusting with season, age, and what is abundant in Houses, sheds, garages, log piles, gardens. That label is a preferred pattern, not every item an individual might sample.
Key takeaway
Giant House Spiders feed on flies, moths and and other invertebrates, adjusting with season, age, and what is abundant in Houses, sheds, garages, log piles, gardens. That label is a preferred pattern, not every item an individual might sample.
Giant House Spider diet overview
Giant House Spiders (Eratigena atrica) are best summarised as Carnivore (flies, moths, and other invertebrates). Anatomy and habitat (Houses, sheds, garages, log piles, gardens) decide whether they hunt, graze, filter, scavenge, or mix strategies across the year.
How giant house spiders 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.
Giant House Spider role in the food web
As predators or scavengers, giant house spiders move nutrients and influence prey or vegetation.
Feeding and human conflict
Never feed wild giant house spiders. Habituation raises injury risk and can lead to lethal management. Captive diets must match species needs, not generic pet food rules.
Range and habitat
Giant House Spiders inhabit Throughout Europe, closely associated with human buildings; common in the UK where it is one of the largest house spiders. Their preferred habitat includes houses, sheds, garages, log piles, 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
Physical characteristics and behaviour
Adult giant house spiders typically measure about 0.09 m in length and weigh roughly 0.001 kg (0 lb). They can sprint at up to 1.9 km/h (1 mph) when hunting or escaping predators. Giant House Spiders are known for britain's large but harmless funnel-weaving house spider — social structure, daily activity, and seasonal movements all reflect pressures in their native environment.
Sources
Giant House Spider FAQs
What do giant house spiders eat?
Giant House Spiders feed on flies, moths and and other invertebrates, adjusting with season, age, and what is abundant in Houses, sheds, garages, log piles, gardens. That label is a preferred pattern, not every item an individual might sample.
What is the scientific name of the giant house spider?
Eratigena atrica — used in research and conservation listings for giant house spiders.
Where do giant house spiders live?
They are associated with Houses, sheds, garages, log piles, gardens. Local presence depends on food, cover, and human land use.
What is the conservation status of giant house spiders?
Listed in our guides as Least Concern. Check the IUCN Red List and national assessments for the latest formal category.