Quick answer
Black Widow Spiders feed on insects and other small arthropods, adjusting with season, age, and what is abundant in Sheltered, dark spots in fields, sheds, and woodpiles. That label is a preferred pattern, not every item an individual might sample.
Key takeaway
Black Widow Spiders feed on insects and other small arthropods, adjusting with season, age, and what is abundant in Sheltered, dark spots in fields, sheds, and woodpiles. That label is a preferred pattern, not every item an individual might sample.
Black Widow Spider diet overview
Black Widow Spiders (Latrodectus mactans) are best summarised as Carnivore (insects and other small arthropods). Anatomy and habitat (Sheltered, dark spots in fields, sheds, and woodpiles) decide whether they hunt, graze, filter, scavenge, or mix strategies across the year.
How black widow 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.
Black Widow Spider role in the food web
As predators or scavengers, black widow spiders move nutrients and influence prey or vegetation.
Feeding and human conflict
Never feed wild black widow 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
Black Widow Spiders inhabit Sheltered, dark places across North America, especially the southern and western United States. Their preferred habitat includes sheltered, dark spots in fields, sheds, and woodpiles, 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 pe
Physical characteristics and behaviour
Adult black widow spiders typically measure about 0.04 m in length and weigh roughly 0.001 kg (0 lb). They can sprint at up to 1.5 km/h (1 mph) when hunting or escaping predators. Black Widow Spiders are known for the glossy black spider with the red hourglass — social structure, daily activity, and seasonal movements all reflect pressures in their native environment.
Sources
Black Widow Spider FAQs
What do black widow spiders eat?
Black Widow Spiders feed on insects and other small arthropods, adjusting with season, age, and what is abundant in Sheltered, dark spots in fields, sheds, and woodpiles. That label is a preferred pattern, not every item an individual might sample.
What is the scientific name of the black widow spider?
Latrodectus mactans — used in research and conservation listings for black widow spiders.
Where do black widow spiders live?
They are associated with Sheltered, dark spots in fields, sheds, and woodpiles. Local presence depends on food, cover, and human land use.
What is the conservation status of black widow spiders?
Listed in our guides as Least Concern. Check the IUCN Red List and national assessments for the latest formal category.