Wolf Spider
(Lycosidae family)
Large, fast, hairy spiders that hunt on the ground rather than building webs.
Overview
Wolf spiders are among the most commonly encountered spiders in Bowling Green. They are large, fast, and often alarming to homeowners — but they are actually beneficial predators that help control insect populations. Unlike web-building spiders, wolf spiders are ground-dwelling hunters that chase down their prey. They typically enter homes accidentally during fall when temperatures drop, seeking shelter. While they can bite if handled, their venom is not medically significant for most people.
Appearance
Wolf spiders are robust and hairy, ranging from 1/2 to over 2 inches in body length. They are typically brown, gray, or tan with darker brown or black markings, often in a striped or mottled pattern. They have eight eyes arranged in three rows — two large eyes on top, two medium eyes above, and four small eyes below. Their legs are thick and covered with spines and hair. Females are often seen carrying a large, round egg sac attached to their spinnerets.
Habitat
Wolf spiders live primarily on the ground, hiding under stones, logs, leaf litter, and landscape timbers during the day and hunting at night. They are commonly found in yards, gardens, and around foundations. Indoors, they are found at ground level — on floors, in garages, basements, and occasionally in bathtubs or sinks they cannot climb out of. They do not build webs for catching prey.
Diet
Wolf spiders are voracious predators that hunt on the ground. They eat a wide variety of insects and other spiders, including crickets, ants, grasshoppers, and beetles. They hunt by ambush or active pursuit, using their keen eyesight to locate prey.
Lifecycle
After mating, females carry their egg sac attached to their spinnerets. When spiderlings hatch, they climb onto the mother's back and ride there for several days until they are ready to disperse. Wolf spiders live 1 to 2 years on average.
Signs of Infestation
- !Large, fast-moving spiders running across floors, especially at night
- !Seeing spiders carrying round, white or tan egg sacs
- !Baby spiders riding on the back of a larger spider
- !Spiders found in garages, basements, or ground-level areas
Prevention Tips
- ✓Reduce outdoor lighting near entry points (lights attract the insects wolf spiders eat)
- ✓Seal gaps under doors with door sweeps
- ✓Remove leaf litter, rocks, and debris from around the foundation
- ✓Keep grass mowed short near the house
- ✓Seal cracks in the foundation and around ground-level windows
Professional Treatment
Wolf spider control focuses on reducing the insect prey population that attracts them and sealing entry points. Perimeter treatments around the foundation create a barrier. Glue traps placed along walls and in garages can capture wandering individuals. Because wolf spiders are solitary and do not form colonies, treatment is usually straightforward.
Did You Know?
- •Mother wolf spiders carry their babies on their back — sometimes hundreds at a time.
- •Their eyes reflect light at night, making them easy to spot with a flashlight.
- •Wolf spiders can run at speeds of up to 2 feet per second.
- •They have excellent eyesight compared to most spider species and use vision to hunt prey.
1/2 to 2 inches body
Brown, gray, or tan with darker markings
8
Robust, hairy body
Ground spider, Hunting spider
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Other Spiders in Our Library
Brown Recluse Spider
A venomous spider identified by the violin-shaped marking on its back, common in Kentucky homes.
Black Widow Spider
A venomous spider recognized by its shiny black body and distinctive red hourglass marking.
Orb-Weaver Spider
Colorful garden spiders known for building large, circular webs in yards and around porches.
Cellar Spider
Delicate, long-legged spiders that build messy webs in corners of basements and cellars.