The zebra spider (Salticus scenicus) is a small black-and-white jumping spider, about 4–7 mm in body length, that hunts in daylight on sunny walls, fences, window frames, and rocks. It doesn’t build a web to catch prey. Instead, it stalks flies and other small insects by sight and leaps onto them. It occurs across Europe and much of northern Asia and is now widespread in North America. It is not considered medically important to people.
Zebra Spider Quick Facts
| Scientific name | Salticus scenicus (Clerck, 1757) |
|---|---|
| Family | Salticidae, the jumping spiders |
| Body length | About 4–7 mm (roughly ¼ inch); females are usually a little larger |
| Range | Europe and parts of Asia; widespread in northern North America, where it is generally regarded as introduced |
| Where you see it | Sun-warmed walls, fences, window frames, rocks, fence posts, and tree bark |
| Web | No prey-catching web; uses silk for a night retreat, egg sac, and safety line |
| Diet | Small insects, especially flies; also small spiders |
| Lifespan | Usually about one to two years |
| Risk to people | Not medically important |
How to Identify a Zebra Spider
The black-and-white pattern is what most people notice first, but several small jumping spiders share some version of it. A confident identification comes from a combination of features, not color alone.
- Body shape: compact and short-legged, with a squarish front to the head region.
- Eyes: four large eyes face forward across the front of the head, and the central pair is much bigger than the rest. Two smaller pairs sit farther back on top of the head.
- Markings: a dark brown to black body with white bands running across the abdomen, usually four or five white bars along the sides. Females may show a white X-shaped mark on the front part of the body.
- Legs: females tend to have paler, mottled legs; males have almost uniformly dark legs.
- Male jaws: adult males have long, dark chelicerae (jaws) that project forward. They use them in courtship and in face-offs with rival males.
- Movement: short, jerky runs, frequent pauses, and sudden jumps. A zebra spider will often turn to face something moving nearby, including a person.
Coloring varies more than you might expect. Juveniles and older adults can look worn or patchy, and the British Arachnological Society notes a very rare all-black form recorded in industrially polluted areas.
If you have found a small black spider with white marks and aren’t sure it’s a zebra spider, our guide to narrowing down a black spider with white spots walks through the other common possibilities. For a closer look at eye patterns, see how to identify a spider with big eyes.
How Big Is a Zebra Spider?
Zebra spiders are small. Most measure about 4–7 mm in body length, which is close to a quarter of an inch. Published ranges differ slightly by source and region:
- Penn State Extension gives 4.3–6.4 mm for females and 4–5.5 mm for males.
- The British Arachnological Society gives 5–7 mm for females and 5–6 mm for males.
These figures are body length, not leg span. Because the legs are fairly short, a zebra spider doesn’t look much larger than its body measurement when you see it on a wall.
Where Do Zebra Spiders Live?
Geographic range
The World Spider Catalog lists the species from North America, Europe, Russia (from Europe to the Far East), the Caucasus, Kazakhstan, and Iran.
In North America, Penn State Extension describes it as native to Europe and western Asia and introduced to North America, with the earliest known record possibly a specimen collected in Illinois in 1933. It is now found across most of the United States and southern Canada. Records are more frequent in the northeastern US and on the West Coast, and sparse in the Southeast and the Plains states.
In Britain it is common throughout England and less often recorded in Wales and Scotland, with few records from upland areas.
Habitat
Zebra spiders favor surfaces that warm up in the sun. Typical places include:
- house walls, window frames, and sills
- fences, fence posts, and garden rockeries
- bare rocks and tree bark away from buildings
- under stones and on low vegetation
At night and in dull weather, the spider tucks itself into a small silk cell inside a crack or crevice. It uses the same kind of shelter for molting and for guarding eggs. More on where different spiders settle is in our spider habitat section.
How Zebra Spiders Hunt
Like other jumping spiders, the zebra spider relies on eyesight rather than a web. The British Arachnological Society describes the sequence well: the spider sits still until its smaller eyes pick up movement, turns to face it, creeps closer in short jerky steps, and uses its large front eyes to judge the distance before it leaps.
- Jump distance: up to about 10 cm (4 inches).
- Safety line: before jumping, it fixes a silk dragline to the surface. If it misses, it can climb back up the line to where it started.
- Prey size: it can tackle insects larger than itself.
- Climbing: dense pads of hair on its feet let it walk on smooth vertical surfaces, including glass.
The crisscrossing silk lines a zebra spider leaves behind on a wall are often the only sign that one has been hunting there. For more on how spiders that don’t build webs catch food, browse our spider behavior articles.
What Do Zebra Spiders Eat?
Zebra spiders eat small insects. Flies, including mosquitoes, are frequent prey, and they also take small spiders, occasionally including smaller zebra spiders.
Their interest in mosquitoes has even been used in research. In a laboratory study published in Behavioral Ecology in 2003, female Anopheles gambiae mosquitoes that had fed on blood were about three times less likely to escape a searching zebra spider than mosquitoes that hadn’t fed. A heavy blood meal slowed their escape. That was a controlled experiment, so it shows what zebra spiders can do rather than how much of their diet is mosquitoes in the wild.
You can read more about spider feeding in our spider diet section, and about why insect-eating spiders matter in why spiders are important.
Courtship, Eggs, and Life Cycle
When a male finds a female, he performs a zigzag courtship dance, waving his front legs and jaws. Males that meet each other may square off with similar displays.
After mating, the female lays roughly 15–25 eggs in a silk sac inside her retreat. She guards the eggs for about three to four weeks and stays with the spiderlings until they molt.
Timing depends on region and weather:
- In Britain, adult males are found from about April to July and adult females from about March to October.
- In Pennsylvania, mating takes place in late spring and eggs are laid in June and July.
Young zebra spiders molt as many as nine or ten times as they grow. They usually spend the winter as sub-adults and mature the following spring. Most live for roughly one to two years.
Do Zebra Spiders Bite? Are They Dangerous?
Zebra spiders are venomous in the same sense that almost all spiders are: they use venom to subdue their prey. That is different from being dangerous to people. Penn State Extension states that zebra spiders are not medically important and lists them as beneficial.
They are not aggressive toward people, and a bite is unlikely unless the spider is pressed against the skin. Sources even differ on whether its tiny fangs can get through human skin. “Poisonous” is the wrong word here: poison harms you when eaten or touched, while venom is injected.
About unexplained skin sores: a red bump or wound on its own does not show that a spider bit you, and many wounds blamed on spiders turn out to have other causes, such as infections. If a sore is spreading, very painful, or slow to heal, or if you feel unwell, contact a doctor or your local poison center.
For bite questions about other spiders, start with our spider bites and danger section.
Zebra Spider Lookalikes
Location narrows things down quickly. The species below are mainly relevant in Britain and Europe, where the most similar relatives live.
| Spider | How it compares |
|---|---|
| Salticus cingulatus | Very similar in appearance. Usually found on tree trunks, occasionally on fence posts, rather than on house walls. |
| Salticus zebraneus | Also similar. Mainly lives on conifers, tall plants, and bushes. In Britain it is largely confined to the Thames corridor. |
| Pseudeuophrys lanigera and other small jumping spiders on buildings | Share the same walls and habitats but lack the bold black-and-white bands. Smaller and much less common than the zebra spider. |
Separating the Salticus species reliably can require a close look at features that don’t show in a casual photo. In North America, other small black-and-white jumping spiders can also look similar, so where you found the spider and a sharp, well-lit photo matter more than pattern alone. Our spider identification guide explains which clues to record.
Found a Zebra Spider in Your House?
A zebra spider indoors is usually a visitor that wandered in. They are often seen near windows and other sunny spots, especially in spring and summer. One spider doesn’t mean anything more than that.
You can leave it alone, since it will eat small flies. If you’d rather move it, cover it with a glass or cup, slide a piece of card underneath, and release it outside on a sunny wall or fence.
Zebra Spider FAQs
Is a zebra spider a jumping spider?
Yes. It belongs to Salticidae, the jumping spider family, which is one of the largest spider families.
Why does a zebra spider turn to look at me?
Jumping spiders react to movement. The smaller side eyes detect it, and the spider turns so its large front eyes can get a clear view. A person walking past triggers the same response as passing prey.
How far can a zebra spider jump?
Up to about 10 cm (4 inches), and it attaches a silk safety line before each leap.
Where does the name Salticus scenicus come from?
According to the British Arachnological Society, Salticus refers to jumping or dancing, and scenicus means theatrical or scenic, a nod to its striking pattern.
References
- World Spider Catalog (2026). Salticus scenicus (Clerck, 1757). Natural History Museum Bern. wsc.nmbe.ch
- British Arachnological Society. Factsheet 10: Common zebra spider, Salticus scenicus. srs.britishspiders.org.uk
- British Arachnological Society. Salticus scenicus. britishspiders.org.uk
- Penn State Extension. Zebra Jumper. extension.psu.edu
- University of Minnesota Extension. Zebra spider. extension.umn.edu
- UWM Field Station. Zebra Jumping Spider. University of Wisconsin–Milwaukee. uwm.edu
- Animal Diversity Web. Salticus scenicus. University of Michigan Museum of Zoology. animaldiversity.org
- Roitberg, B. D., Mondor, E. B., & Tyerman, J. G. A. (2003). Pouncing spider, flying mosquito: blood acquisition increases predation risk in mosquitoes. Behavioral Ecology, 14(5), 736–740. doi.org/10.1093/beheco/arg055
- Vetter, R. S. Causes of necrotic wounds other than brown recluse spider bites. University of California, Riverside. spiders.ucr.edu
