Wolf Spider Bite: Symptoms, Treatment & Identification
Last reviewed: April 2026
The wolf spider is one of the most commonly encountered spiders in the United States. Despite its large, intimidating appearance, it is not considered dangerous to healthy adults. There are around 125 species found in the United States and about 50 species found in Europe.
How to Identify a Wolf Spider
A full grown wolf spider is typically half an inch to two inches long. They are usually brown or gray with stripe-like markings on their backs, sometimes referred to as Union Jack impressions. They are noticeably hairy, which often leads to them being mistaken for tarantulas.
The eye arrangement of the wolf spider is one of its most distinctive features. They have eight eyes arranged in three rows – four small eyes in the bottom row, two large eyes in the middle row, and two medium eyes on top. The large middle eyes give wolf spiders excellent vision, which they rely on for hunting.
Wolf spiders do not build webs. They hunt actively on the ground, both day and night, pursuing prey rather than waiting for it. They dig burrows under rocks or in soil, often covering the entrance with leaves or grass. They are fast-moving and will usually run away from humans when disturbed rather than stand their ground.
Wolf spiders are commonly found indoors at the beginning of fall when they seek warmer shelter for winter. Despite being widespread across the United States, they are most abundant in Australia.
The mother wolf spider carries her egg sac attached to her body. After hatching, the spiderlings ride on their mother’s back until they are partially grown – a behavior unique among spiders found in the US.
The image above shows a wolf spider that was caught and killed by a brown widow spider.
Wolf Spider vs Brown Recluse – How to Tell Them Apart
Wolf spiders are frequently misidentified as brown recluse spiders, which can cause unnecessary alarm. Here is how to tell them apart:
- Wolf spiders are larger and hairier than brown recluse spiders
- Brown recluse spiders have a distinctive violin-shaped marking on their back – wolf spiders do not
- Brown recluse spiders have six eyes arranged in pairs – wolf spiders have eight eyes arranged in three rows
- Wolf spiders move quickly in the open – brown recluse spiders prefer to stay hidden in dark, undisturbed areas
If you are unsure whether you are looking at a wolf spider or a brown recluse, see our brown recluse identification guide.
Wolf Spider Bite Symptoms
Wolf spiders are venomous but their venom is not considered dangerous to healthy adults. They are not aggressive and will bite only if they feel directly threatened or are handled.
A wolf spider bite typically causes:
- Pain and redness at the bite site
- Swelling around the bite
- Itching that may persist for several days
- Mild swollen lymph nodes in some cases
Serious complications from wolf spider bites are rare. However, people with allergies or compromised immune systems may have stronger reactions. If symptoms worsen after the first few hours, seek medical attention.
Wolf Spider Bite Treatment
- Wash the bite site thoroughly with soap and water
- Apply an ice pack wrapped in a cloth to reduce swelling – do not apply ice directly to skin
- Do not bandage the wound tightly
- Take an over-the-counter pain reliever such as ibuprofen or acetaminophen if needed
- Avoid moving the affected limb excessively if swelling is significant
- Seek medical attention if symptoms worsen, if a red line develops from the bite site, or if you are unsure what bit you
If you believe you have been bitten by a wolf spider and are experiencing severe symptoms, seek medical attention immediately.