Yellow Sac Spider

Indoors on walls and ceilings, or outdoors in gardens and leaf litter.

Carnivorous, primarily eating small insects and other spiders.

Nocturnal hunters that do not build webs for prey; they create small silk 'sacs' for resting and overwintering.

Provides pest control by eating insects. Their bite can be painful and cause localized swelling or itching, but is generally not medically significant for most people.