Are There Wolf Spiders in Maryland?
Wolf spiders are abundant throughout Maryland, from the Chesapeake Bay region to the western mountains. These ground-hunting spiders are venomous but harmless to humans and actively avoid people. Bites are extremely rare, and most Marylanders never encounter one. This guide explains where to find them, how to recognize them, and what to do if you spot one.
By Tim, founder of Easy Street Markets. I maintain the wildlife database and verify every animal and source myself. Updated July 22, 2026.
Wetland Giant Wolf Spider · Matthew Lindsey CC BY
Trochosa sepulchralis · Timothy Lindsey CC BY
Trabeops aurantiacus · Public domain CC0
- 8
- species recorded
- 2,490
- GBIF records
- May, April, June
- peak months
Yes, wolf spiders are in Maryland. Next you'll want:
Verified species, source iNaturalist
23 types of wolf spiders recorded in Maryland
23 wolf spider species have a verified observation record in Maryland, each with at least 10 confirmed sightings. The full list, ranked by how often each is recorded, is below.
1 of the 23 shown is recorded as introduced to Maryland rather than native.
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Also recorded in Maryland
| # | Species | Scientific name | Records |
|---|---|---|---|
| 13 | Shoreline Wolf SpiderArctosa littoralis | Arctosa littoralis | 105 |
| 14 | Gladicosa pulchraGladicosa pulchra | Gladicosa pulchra | 46 |
| 15 | Rustic Wolf SpiderIntroducedTrochosa ruricola | Trochosa ruricola | 45 |
| 16 | Unbanded Wolf SpiderHogna baltimoriana | Hogna baltimoriana | 38 |
| 17 | Stone SpiderPardosa lapidicina | Pardosa lapidicina | 34 |
| 18 | Varacosa avaraVaracosa avara | Varacosa avara | 32 |
| 19 | Pirate Otter SpiderPirata piraticus | Pirata piraticus | 16 |
| 20 | Pardosa pauxillaPardosa pauxilla | Pardosa pauxilla | 13 |
| 21 | Hogna antelucanaHogna antelucana | Hogna antelucana | 12 |
| 22 | Ground wolf spiderTrochosa terricola | Trochosa terricola | 12 |
| 23 | Forest Wolf SpiderHogna frondicola | Hogna frondicola | 12 |
Plus 14 more recorded only rarely (fewer than 10 verified sightings). Counts from verified iNaturalist observations.
Real sighting data, source iNaturalist
9,690 verified observations on iNaturalist of wolf spider have been recorded in Maryland, most often in May, April, June.
When wolf spider are recorded in Maryland
Wolf spiders are abundant throughout Maryland, from the Chesapeake Bay region to the western mountains. These ground-hunting spiders are venomous but harmless to humans and actively avoid people. Bites are extremely rare, and most Marylanders never encounter one. This guide explains where to find them, how to recognize them, and what to do if you spot one.
Are they in Maryland?
Wolf spiders are well established throughout Maryland, from the coastal marshes and tidal zones of the Chesapeake Bay to the Appalachian highlands in the western mountains. They thrive in urban gardens, suburban yards, forests, and open grasslands across the state. Baltimore and Washington, DC area residents regularly encounter them in their yards and homes. Wolf spiders are particularly abundant in the spring, summer, and fall months when they are most active. The state's diverse habitats, including wetlands near the Potomac River and forests throughout Montgomery and Frederick counties, support thriving populations. These spiders are beneficial predators that control insect pests throughout Maryland. They are commonly seen running across the ground or on plants in parks, gardens, and wild areas. Bites from wolf spiders are exceptionally rare in Maryland because these spiders flee when threatened rather than stand their ground. You can find detailed information aboutwolf spiders in Marylandand their behavior across the state.
How dangerous is it?
Wolf spiders are venomous, but their venom is designed for small insects and poses virtually no risk to humans. A wolf spider bite is uncommon and occurs only if the spider feels directly threatened and cannot escape. When a bite does happen, it causes minor local pain, similar to a mosquito bite, with mild redness or swelling that typically resolves within hours or a day. Wolf spider venom does not transmit disease, and serious medical complications are virtually unheard of in healthy adults. The spiders have no interest in attacking people and are far more likely to run away than bite. Their venom is formulated to subdue small prey like flies, mosquitoes, and other small insects, not to harm large animals. Medical attention is rarely needed for a wolf spider bite, and there have been no deaths in the United States attributable to this species. For residents of Maryland concerned aboutwolf spiders, the reality is they are beneficial neighbors rather than threats.
How to recognize one
Wolf spiders range from about half an inch to over an inch in body length, with legs extending their total size to well over an inch. Their coloration is typically brown or gray, often with darker stripes or markings on their legs and body. The distinguishing feature is their eye arrangement: eight eyes in three rows, including two prominent forward-facing eyes that give them excellent vision for hunting. Unlike web-building spiders, wolf spiders are fast runners that chase down prey on the ground and on plants. Female wolf spiders often carry their egg sacs attached to their rear end and later transport dozens of tiny spiderlings on their backs, making them easy to identify. You will see them running quickly across lawns, gardens, and floors. They hide under rocks, logs, leaf litter, and in grass throughout Maryland. Their size, speed, and ground-hunting behavior distinguish them from slower, web-building spiders that might appear in your home or garden.
What to do if you are bitten or stung
If a wolf spider bites you, remain calm because the spider will flee as soon as it escapes the pressure against your skin. Wash the bite area with soap and water and keep it clean to prevent infection. If redness or swelling develops, apply a clean, damp cloth to the area and elevate the bitten limb if possible. Remove any rings or tight jewelry from the affected finger or hand in case mild swelling occurs. Most bites heal without any medical treatment within one or two days. This is general information, not medical advice; if you are bitten, call Poison Control at 1-800-222-1222, or 911 if symptoms are severe. Do not attempt to cut, squeeze, or apply ice or heat to the bite wound. Avoid over-the-counter pain relievers unless absolutely necessary. Seek immediate medical attention only if you develop fever, severe swelling, or any unusual symptoms, which are extremely unlikely outcomes from a wolf spider bite.
How to prevent encounters in this state
Preventing wolf spider encounters is simple because these spiders are not aggressive and do not seek out people. Keep your Maryland home clean and clutter-free to reduce hiding spots for spiders and their prey. Remove leaf piles, woodpiles, and garden debris away from your foundation, or store them in sealed containers away from doors and windows. Seal cracks and gaps around doors, windows, and utility penetrations with weatherstripping or caulk. When hiking in Maryland's forests and parks, wear closed-toe shoes and long pants for protection. Shake out shoes, clothing, and camping gear before using them if you have been in grassy or wooded areas. Wear gloves when gardening or working in soil, and look before placing bare hands in mulch or leaf litter. These practical steps help you avoid direct contact withwildlife in Maryland, including wolf spiders, while still allowing you to enjoy outdoor activities safely and comfortably.
Where in Maryland and when
Wolf spiders are found throughout Maryland in every region and habitat type. In the coastal areas near the Chesapeake Bay and in the eastern shore counties, they hunt in marshes and grasslands. In central Maryland around the Baltimore and Annapolis regions, they thrive in urban gardens and parks. The Appalachian highlands of western Maryland, including Allegany and Garrett counties, support healthy populations in forests and open areas. Wolf spiders are active during the warmer months, typically from April through October, with peak activity in late summer and early fall when they mature. During this season, adults search for mates and hunt intensively, making them most visible to people. Activity levels depend on temperature, with activity increasing during warm spells in spring and fall. In winter, wolf spiders overwinter as eggs or juveniles in protected locations such as soil, leaf litter, and under bark, becoming inactive during the coldest months. Spring rains and warm temperatures bring them out to resume hunting.
Harmless lookalikes
The fast-moving spider you see in your Maryland yard or home is far more likely to be a harmless wolf spider than a dangerous species. Many other harmless hunting spiders, including fishing spiders and running spiders, resemble wolf spiders but are equally safe. Fishing spiders are larger and darker, often found near water, but they do not bite humans. Cellar spiders, also called daddy longlegs, are extremely common in Maryland homes and have longer, thinner legs than wolf spiders but are completely harmless. Ground spiders and sac spiders look similar to wolf spiders and are frequently mistaken for them by people unfamiliar with spider identification. All of these harmless spiders play important roles in controlling insects and pest populations throughout Maryland. The reassuring fact is that almost all spiders in Maryland are not dangerous and are trying to escape or find food, not attack humans. If you encounter a fast-moving spider anywhere in the state, it is almost certainly harmless and beneficial.
Frequently Asked Questions
Q: Are wolf spiders deadly? A: No. There are no documented deaths from wolf spider bites in the United States. Bites are very rare and pose no serious threat to humans. Q: How common are wolf spider bites in Maryland? A: Bites are extremely uncommon. Most Marylanders will never experience a wolf spider bite, even though the spiders are common throughout the state. The spiders flee from people and do not bite unless directly threatened. Q: What attracts wolf spiders to a house? A: Wolf spiders enter homes because they sense the presence of insects and other prey. They are attracted to food, not to people or shelter. Keeping your home clean and controlling other insects naturally reduces the chances of seeing wolf spiders indoors. Q: What should I do if I see one? A: Leave the spider alone and allow it to continue hunting insects and other pests. If you prefer to remove it, gently guide it into a cup or container and release it outdoors. You can learn more about allwildlife in Marylandby visiting our comprehensivewildlife guidesfor additional information about spiders and other species.
Plan your trip
Best time to see wolf spider in Maryland: May, April, June
See the month-by-month sighting calendar.
Plan your wolf spider sighting in Maryland
2,490 verified wolf spider records have been logged in Maryland. See the GBIF records.
Where to look in Maryland
- Antietam National Battlefield · Wildlife Watching, Birdwatching · Find hotels
- Appalachian National Scenic Trail · Wildlife Watching, Birdwatching · Find hotels
- Assateague Island National Seashore · Wildlife Watching, Birdwatching · Find hotels
- Captain John Smith Chesapeake National Historic Trail · Wildlife Watching, Birdwatching · Find hotels
- Chesapeake & Ohio Canal National Historical Park · Wildlife Watching, Birdwatching · Find hotels
- Chesapeake Bay · Wildlife Watching · Find hotels
Frequently asked questions
Are they in Maryland?+
Wolf spiders are well established throughout Maryland, from the coastal marshes and tidal zones of the Chesapeake Bay to the Appalachian highlands in the western mountains. They thrive in urban gardens, suburban yards, forests, and open grasslands across the state. Baltimore and Washington, DC area residents regularly encounter them in their yards and homes. Wolf spiders are particularly abundant in the spring, summer, and fall months when they are most active. The state's diverse habitats, including wetlands near the Potomac River and forests throughout Montgomery and Frederick counties, support thriving populations. These spiders are beneficial predators that control insect pests throughout Maryland. They are commonly seen running across the ground or on plants in parks, gardens, and wild areas. Bites from wolf spiders are exceptionally rare in Maryland because these spiders flee when threatened rather than stand their ground. You can find detailed information aboutwolf spiders in Marylandand their behavior across the state.
How dangerous is it?+
Wolf spiders are venomous, but their venom is designed for small insects and poses virtually no risk to humans. A wolf spider bite is uncommon and occurs only if the spider feels directly threatened and cannot escape. When a bite does happen, it causes minor local pain, similar to a mosquito bite, with mild redness or swelling that typically resolves within hours or a day. Wolf spider venom does not transmit disease, and serious medical complications are virtually unheard of in healthy adults. The spiders have no interest in attacking people and are far more likely to run away than bite. Their venom is formulated to subdue small prey like flies, mosquitoes, and other small insects, not to harm large animals. Medical attention is rarely needed for a wolf spider bite, and there have been no deaths in the United States attributable to this species. For residents of Maryland concerned aboutwolf spiders, the reality is they are beneficial neighbors rather than threats.
More places to see wolf spider
More wildlife in Maryland