Sac Spider
Scientific Name: Cheiracanthium spp.
Order & Family: Araneae: Cheiracanthiidae
Size: 5 to 10 mm (approximately 1/4 to 3/8 inch) in body length.

Natural Habitat
Typically found in foliage, tall grasses, under stones, or inside houses near ceilings and corners.
Diet & Feeding
Carnivorous; they hunt small insects and other spiders at night.
Behavior Patterns
Nocturnal hunters that do not build webs for catching prey, but instead build silk retreats or sacs for resting during the day.
Risks & Benefits
Benefits include controlling indoor and garden pests; however, their bite can be painful and may cause localized swelling or skin irritation, though they are generally not considered dangerous.
Identified on: 5/11/2026