Community identification
False widow spider (likely noble false widow)
Steatoda nobilis
- Order & Family
- Araneae; Theridiidae
- Size
- Females are about 9–14 mm in body length; males are typically 7–10 mm.
Natural Habitat
Buildings, sheds, garages, fences, and other sheltered outdoor structures, especially in temperate regions.
Diet & Feeding
Predatory; captures flies, mosquitoes, and other small arthropods in a sticky cobweb, then immobilizes prey with venom.
Behavior Patterns
Mostly nocturnal and sedentary, remaining near its irregular web. It is generally nonaggressive and bites mainly when trapped or pressed; females produce egg sacs.
Risks & Benefits
Its bite can cause localized pain, redness, and swelling, but serious effects are uncommon. It benefits people by reducing household and garden insect pests.