Eratigena (Giant House Spider / Barn Funnel Weaver)
Scientific Name: Eratigena duellica
Order & Family: Order Araneae, Family Agelenidae
Size: Body size of 10-18mm for females, leg spans reaching up to 100mm (4 inches).
Natural Habitat
Commonly found in dark, undisturbed areas of buildings such as basements, attics, and garages, as well as in gardens under logs and rocks.
Diet & Feeding
Feeding on common household insects like flies, silverfish, and moths caught in their funnel-shaped webs.
Behavior Patterns
Night-active hunters that build thick funnel webs. Known for being one of the fastest spiders, they are largely solitary and spend much of their time waiting in the neck of their funnel web for prey.
Risks & Benefits
Benefits the ecosystem by controlling indoor pests. While their appearance can be intimidating, they are generally reluctant to bite humans unless handled, and their venom is not considered medically significant to humans.
Identified on: 6/24/2026