White-Tailed Spider | Habitat, Bite & Facts

Spider Identification & Safety Guide

The white-tailed spider is a nocturnal hunting spider best known for the pale spot at the end of its abdomen. Common in parts of Australia and also established in New Zealand, it frequently enters homes while searching for other spiders to eat.

White-tailed spiders have developed a frightening reputation for causing severe skin damage. However, research involving confirmed bites tells a considerably less alarming story. Most bites cause local pain, redness or irritation rather than serious injury.

This guide explains how to identify white-tailed spiders, where they live, what they eat, what happens if one bites you, and how to reduce encounters around your home.

What Is a White-Tailed Spider?

White-tailed spiders belong to the genus Lampona, a group of ground-dwelling and wandering spiders in the family Lamponidae. Unlike orb-weaving spiders that build elaborate webs to catch flying insects, white-tailed spiders actively search for prey.

Two of the best-known species are Lampona cylindrata and Lampona murina. Both occur in Australia, where their ranges overlap in some eastern and southeastern regions.

Their name refers to a distinctive whitish or cream-colored patch near the rear end of the abdomen. Although this marking is a useful identification clue, it should be considered alongside the spider’s body shape, coloration and other physical features.

White-tailed spiders are sometimes called white-tip spiders. The name does not describe a completely separate species.

How to Identify a White-Tailed Spider

The white spot is the most obvious feature, but several characteristics help distinguish these spiders from other household species.

1. An elongated, cigar-shaped abdomen

White-tailed spiders usually have a narrow, cylindrical body rather than the rounded abdomen associated with many web-building spiders. Their overall appearance is slender and somewhat flattened.

2. A pale marking at the tail end

A white, cream or light grey patch typically appears at the tip of the abdomen. Juveniles may also have additional pale spots or markings along the abdomen, which can become less noticeable as they mature.

3. Dark body coloration

The body is usually grey, charcoal or dark reddish-brown. The legs often appear orange-brown or reddish-brown, sometimes with darker bands.

4. Relatively small body size

The Australian Museum lists body lengths of approximately 12 mm for males and 18 mm for females in the commonly encountered species. These measurements exclude the extended legs.

Where Do White-Tailed Spiders Live?

White-tailed spiders occupy a range of natural and urban habitats. They prefer sheltered places where they can hide during daylight and find other spiders to hunt after dark.

Natural habitats

Outdoors, these spiders are commonly associated with:

• Loose bark and sheltered tree trunks.
• Rocks, fallen logs and garden debris.
• Leaf litter and protected ground surfaces.
• Gardens, shrubs and bushland.

Why do white-tailed spiders enter houses?

A house can offer both shelter and food. White-tailed spiders often pursue other spiders living around window frames, walls, corners and furniture.

Once indoors, they may hide in clothing, bedding, towels, shoes and other undisturbed spaces. Bathrooms and laundries are also possible hiding places.

Finding one inside does not necessarily mean there is a large infestation. These are wandering hunters, so a single individual may simply be passing through.

Geographic distribution

Lampona cylindrata occurs across southern Australia, including Tasmania, while L. murina is primarily associated with eastern Australia. Both are also recorded in New Zealand, where white-tailed spiders were introduced.

Their activity is particularly noticeable during warmer months, when they are more likely to be encountered moving around houses at night.

What Do White-Tailed Spiders Eat?

One of the most interesting facts about white-tailed spiders is that other spiders make up an important part of their diet.

Rather than waiting in a web for insects, they move through their surroundings and locate potential prey.

Documented prey includes:

• Black house spiders.
• Daddy-long-legs or cellar spiders.
• Redback spiders.
• Other web-building spiders.

Black house spiders are particularly relevant because their webs commonly occur around buildings. Learn more about their behavior in our black house spider identification guide .

How do they hunt?

White-tailed spiders typically become active in the evening and at night. They use sensory information, including touch and vibrations, to investigate their surroundings and locate potential prey.

Their venom helps immobilize captured animals. Like other spiders, they then digest prey externally and consume the resulting liquid nutrients.

Their mobile hunting strategy has similarities to that of other active predators, although preferred prey differs among species. For comparison, see our guide explaining what wolf spiders eat .

Do white-tailed spiders make webs?

They produce silk, but they do not construct the familiar circular capture webs of orb-weavers. Instead, they use silk for temporary retreats and reproductive structures.

Females produce flattened egg sacs. According to the Australian Museum, an egg sac may contain up to approximately 90 eggs.

Are White-Tailed Spider Bites Dangerous?

White-tailed spiders are venomous, but their bites are not generally considered medically dangerous to humans. A bite may still be painful, and symptoms should be assessed according to their severity and progression.

The distinction between having venom and posing a serious medical threat is important. Many spiders use venom to subdue prey without causing dangerous effects in humans.

Typical white-tailed spider bite symptoms

Reported effects may include:

• Immediate burning or stinging pain.
• Redness or a visible red mark.
• Localized swelling.
• Itching or continuing skin irritation.
• Occasional blistering or a persistent local lesion.

Some people experience symptoms that last only a short time, while others may have a painful or irritating mark that persists for several days.

What did the research find?

In a prospective study published in 2003, researchers Geoffrey Isbister and Michael Gray examined 130 definite white-tailed spider bites. In each case, the spider was collected and identified by an expert.

All participants reported some pain or discomfort, while 27% described severe pain and 44% experienced itchiness. The median duration of symptoms was 24 hours, although some local reactions lasted longer.

The full findings are documented in the Medical Journal of Australia study .

Do white-tailed spiders cause skin necrosis?

For years, white-tailed spiders were blamed for serious skin ulcers and tissue destruction, a condition sometimes described as necrotising arachnidism.

However, many of the reported cases involved suspected bites without reliable identification of the spider. This makes it difficult to establish whether a spider caused the lesion.

The 130-bite study found no cases of necrotic ulceration. Its authors concluded that white-tailed spider bites are very unlikely to cause necrotic ulcers.

This does not mean that every wound following a suspected bite is harmless. Persistent or worsening skin damage requires medical evaluation to identify the actual cause.

What Should You Do if a White-Tailed Spider Bites You?

If you are confident the spider was a white-tailed spider and symptoms are mild, ordinary wound care and observation are generally appropriate.

Basic first-aid steps

1. Wash the bite area. Gently clean the skin with soap and water.
2. Apply a cold compress. Use a cold pack wrapped in cloth for around 10–15 minutes to reduce discomfort. Do not place ice directly against skin.
3. Avoid scratching. Scratching may irritate the skin further and increase the chance of infection.
4. Monitor the symptoms. Pay attention to pain, swelling, redness and any change in the appearance of the skin.
5. Seek medical advice when necessary. A clinician can assess persistent symptoms or an uncertain diagnosis.

Pressure-immobilization bandaging is not recommended for a confirmed white-tailed spider bite. In Australia, this technique is reserved for suspected funnel-web or mouse spider bites and certain other dangerous spider encounters.

When should you seek medical help?

Obtain medical advice if the pain is severe, symptoms do not settle, swelling worsens after 24–48 hours, or the skin develops spreading redness, discharge or an open wound.

Seek emergency care for difficulty breathing, fainting or signs of a severe allergic reaction. If the spider’s identity is uncertain and a medically significant Australian spider may be involved, treat the situation as urgent.

In Australia, a suspected funnel-web or other large black spider bite requires immediate emergency assessment rather than routine home treatment.

How to Prevent White-Tailed Spiders in Your Home

Prevention focuses on reducing hiding places, limiting entry points and avoiding accidental contact with spiders in clothing or bedding.

Practical prevention measures

• Check clothes and towels. Shake out items that have been left on the floor, outdoors or in storage.
• Inspect shoes and gloves. Check items that have remained unused for an extended period.
• Reduce clutter. Keep storage spaces and areas beneath furniture reasonably clear.
• Maintain window screens. Repair gaps around windows and doors where spiders may enter.
• Manage household webs. Regular cleaning can reduce concentrations of other spiders that attract white-tailed hunters.
• Keep outdoor debris away from entrances. Move loose materials, stored wood and excessive leaf litter away from doorways.

Essential oils and homemade repellents are sometimes recommended online, but reliable evidence for consistently preventing white-tailed spider encounters is limited. Physical exclusion and routine housekeeping are more practical starting points.

How should you remove one safely?

If the spider can be approached safely, place a transparent container over it, slide a firm piece of card underneath, and relocate it away from frequently used indoor areas.

Avoid picking up an unidentified spider with bare hands. If you are uncertain about the species or there are repeated encounters, consider seeking professional assistance.

For broader information about spiders that commonly share human living spaces, read Are Common House Spiders Harmful?

White-Tailed Spider Myths vs. Facts

Frequently Asked Questions

Final Thoughts

White-tailed spiders are fascinating nocturnal predators whose unusual diet and wandering behavior frequently bring them into contact with people.

Their white-tipped abdomens, slender bodies and habit of hunting other spiders make them recognizable members of Australia’s spider fauna.

Although their bites can be uncomfortable, the best available clinical evidence does not support the widespread belief that white-tailed spider venom commonly causes severe skin necrosis.

Understanding their behavior, avoiding direct handling and responding appropriately to bite symptoms are more useful than fearing every encounter.

Medical information notice: This article is provided for educational purposes and does not replace professional medical assessment, diagnosis or treatment.