American Grass Spider

Natural Habitat

Commonly found in grassy areas, low shrubs, and gardens; often builds funnel-shaped webs in corners of porches, windowsills, and foundations.

Diet & Feeding

Carnivorous; hunts small insects like flies, moths, and crickets that land on or crawl onto its sheet web.

Behavior Patterns

They are lightning-fast runners that wait at the back of a funnel-shaped web. When vibrations are detected on the sheet part of the web, they rush out to bite and drag prey back inside. They are most active from late summer through autumn.

Risks & Benefits

Benefits include natural pest control by eating flies and garden pests. They are not aggressive toward humans and their venom is not considered medically significant; bites are rare and typically result in only minor, temporary irritation.

Identified on: 3/15/2026