Giant House Spider

Scientific Name: Eratigena duellica

Order & Family: Araneae: Agelenidae

Size: Body length is 10-18 mm for females; leg spans can reach up to 100 mm (4 inches).

Giant House Spider

Natural Habitat

Typically found indoors in dark, quiet corners like basements and sheds, as well as outdoors in crevices and leaf litter.

Diet & Feeding

Carnivorous; it feeds primarily on flies, beetles, moths, and other small household insects.

Behavior Patterns

Funnel-web weavers that wait in a non-sticky sheet web; they are among the fastest spiders and are primarily active at night.

Risks & Benefits

Benefits the ecosystem by controlling pest populations; they are generally harmless to humans as they are shy and their venom is not medically significant.

Identified on: 5/16/2026