Common House Spider

Color
Yellowish brown, abdomen dirty white with a few dark spots (sometimes with a black triangular spot in the center) to almost black, with several dark stripes meeting at angle above tip of abdomen; legs
Shape
Elongated abdomen
Antennae
No
Region
Found throughout U.S.
Legs
8
Size
3/16″ – 5/16″ (female), 1/8″ – 3/16″ (male)
Flying
N/A
Common House Spider

Habits: The house spider randomly selects its web sites and creates a tangled web. If a web does not yield prey it is abandoned, another site is selected, and a new web is built. Survival is low in modern homes with low humidity and few insects, higher in garages, sheds, barns, warehouses, etc. because of more prey and generally higher humidity, and highest outdoors in protected places

Habitat: Inside structures, house spiders are most likely to be found in upper corners, under furniture, in closets, angles of window frames, basements, garages, and crawl spaces. Outside they are often around windows and under eaves especially near light sources which attract prey.

Threats: House spiders are nuisance pests but pose no threats to humans.

Prevention: To prevent common house spiders from entering the home, seal cracks and use screens on windows and doors. Use a vacuum to remove adults, egg sacs and webs. If a broom is used, adults usually escape.