Noble False Widow

Scientific Name: Steatoda nobilis

Order & Family: Araneae: Theridiidae

Size: Females reach 9.5-14 mm in body length; males are smaller at 7-11 mm.

Noble False Widow

Natural Habitat

Urban areas, inside buildings, gardens, and on external walls; typically found in temperate climates.

Diet & Feeding

Insects and other spiders caught in their messy, scaffold-like cobwebs.

Behavior Patterns

Primarily nocturnal; they build silk retreats in cracks or corners. They are relatively sedentary and non-aggressive, often dropping to the ground when disturbed.

Risks & Benefits

Benefits the ecosystem by controlling pest populations. Their bite is painful (similar to a wasp sting) and may cause localized swelling, but it is not considered medically significant for most humans.

Identified on: 4/11/2026