Spider Egg Sac (Broad-faced Sac Spider)

Natural Habitat

Often found indoors in corners, on ceilings, or in rolled-up leaves and under loose bark outdoors.

Diet & Feeding

Adult spiders are active hunters that feed on other arthropods and scavenging dead insects.

Behavior Patterns

Unlike web-weaving spiders, they build silken retreats (sacs) for resting during the day and for protecting their eggs. The female guards the sac until the spiderlings emerge.

Risks & Benefits

Generally beneficial as they eat household pests. Their bite can be painful and cause redness or secondary infection, comparable to a bee sting, but is typically not medically significant.

Identified on: 2/16/2026