Bug Identifier
Noble False Widow Spider
Community identification

Noble False Widow Spider

Steatoda nobilis

Order & Family
Araneae, Theridiidae
Size
7 to 14 mm body length for females, males slightly smaller
See this bug in the Encyclopedia

Natural Habitat

Dark, sheltered areas such as corners of ceilings, sheds, garages, under rocks, and around window frames

Diet & Feeding

Carnivorous; feeds on flying and crawling insects, woodlice, and occasionally other spiders using sticky cobwebs

Behavior Patterns

Nocturnal web-builder that constructs irregular tangle webs (cobwebs); reclusive and stays hidden in retreats during the day

Risks & Benefits

Benefits the ecosystem by controlling household pest insects. While timid, its bite can cause localized pain, swelling, and mild systemic symptoms similar to a wasp sting, though severe medical complications are rare.