Grass Spider

Scientific Name: Agelenopsis spp.

Order & Family: Araneae, Agelenidae

Size: Body length typically ranges from 1/4 to 3/4 inch (6-20 mm). Females are generally larger than males.

Grass Spider

Natural Habitat

Commonly found in grassy areas, gardens, fields, and around human structures. They build distinctive funnel-shaped webs often seen on lawns, hedges, or in corners of buildings.

Diet & Feeding

Insectivorous. They primarily feed on small insects that get trapped in their funnel webs, such as flies, mosquitoes, crickets, and other small arthropods.

Behavior Patterns

Grass spiders are funnel-web weavers. They construct a sheet-like web with a funnel-shaped retreat at one end, where the spider waits. When prey lands on the web, the spider quickly rushes out from its retreat to capture it. They are very fast runners. They are generally shy and non-aggressive.

Risks & Benefits

Risks: Their bite is generally harmless to humans, typically causing only mild local pain and redness, similar to a bee sting. They are not considered medically significant. Benefits: They are beneficial predators of various insect pests in gardens and agricultural settings, helping to control insect populations.

Identified on: 10/8/2025