House Spider (Giant House Spider)

Scientific Name: Eratigena duellica

Order & Family: Order: Araneae; Family: Agelenidae

Size: Body size of 10-18 mm, with a leg span often reaching 50-100 mm.

House Spider (Giant House Spider)

Natural Habitat

Commonly found in dark corners of buildings, sheds, basements, and around window frames or behind furniture.

Diet & Feeding

Carnivorous; feeds primarily on insects such as flies, moths, and other spiders.

Behavior Patterns

They build funnel-shaped webs in corners and move very quickly when hunting; they are nocturnal and most active during autumn when males search for mates.

Risks & Benefits

Beneficial as they control indoor pest populations; generally harmless to humans, as their bite is medically insignificant and they are usually reluctant to bite.

Identified on: 6/24/2026