White-Tailed Spiders in Melbourne
How to recognise them, why they wander indoors at night, and what Australian research actually shows about their bite.
Written by Muzi Tsolakis, Founder and Competency Assessor, Pest Management Victoria. Last reviewed 7 July 2026.
Few Australian spiders carry a reputation as fearsome as the white-tailed spider, and few reputations are as poorly matched to the facts. The story that its bite rots the flesh has been investigated thoroughly and found to be wrong, yet it still worries people who find one indoors at night. This guide sets out how to identify a white-tail, why it comes into Melbourne homes, and what the Australian medical evidence actually shows about the bite, so you can judge the risk accurately. For the fuller picture of the city's spiders, our spiders guide places the white-tail alongside the species people often mix it up with.
How to identify a white-tailed spider
The white-tailed spider is a slim, cigar-shaped hunter. The Australian Museum describes a dark reddish-grey to grey-black body with dark orange-brown banded legs, males reaching about 12 millimetres and females about 18 millimetres. The feature that gives it its name is the clear white or pale spot at the very tip of the abdomen, and some individuals also show a couple of fainter pale marks further forward.
Two species are common around Melbourne, Lampona cylindrata and Lampona murina, and they look alike to the eye. Because a white-tail builds no capture web, you will usually meet it out in the open, moving across a wall or floor after dark or tucked into a fold of fabric during the day. That habit is the main reason it is seen so often indoors, and it explains why people find it more alarming than the web-building spiders that stay in one corner.
Why white-tails come indoors
The white-tailed spider is a vagrant night hunter that goes where its food is, and its food is largely other spiders. It preys on the black house spiders that spin their lacy webs around window frames, eaves and fences, so a home with those spiders present offers a ready supply of prey. That connection is worth understanding, because it means a white-tail problem is usually a sign of a wider spider population supporting it.
After a night of hunting the spider looks for a dark, sheltered place to rest through the day, and the folds it chooses are often ones we use too: bedding, clothing left on the floor, towels on the rail, and shoes or stored items in the wardrobe. Almost every white-tail bite happens this way, when a resting spider is pressed against skin as someone pulls on a garment or turns over in bed. The spider is not aggressive; the contact is accidental.
The white-tail bite myth: what the evidence shows
Through the 1980s and 1990s the white-tailed spider became linked in the public mind with necrotic arachnidism, the idea that its bite causes a spreading wound of dying flesh. The claim was serious enough to be studied properly. Researchers monitored the medical outcomes of more than one hundred verified white-tailed spider bites, and the Australian Museum reports that they found not a single case of ulceration. The Museum states plainly that skin ulceration is not a common outcome of a white-tailed spider bite.
healthdirect now puts it in the same terms, stating that current evidence suggests white-tail spider bites do not cause skin ulcers, or necrotising arachnidism. Where severe wounds have been blamed on white-tails in the past, later medical review has generally pointed to bacterial skin infections and other causes unrelated to the spider. The honest position, supported by the Australian research, is that a white-tail bite is not the flesh-eating emergency the myth describes.
What a bite actually feels like, and first aid
The genuine symptoms of a white-tailed spider bite are local and short-lived. There is usually an immediate burning or stinging pain, followed by redness, mild swelling and sometimes an itchy lump at the site. Better Health Channel notes that the reaction usually settles over a period that can extend to a couple of weeks, and it does not progress to a serious wound in a healthy person.
For first aid, wash the bite with soap and water and apply a cold pack to ease the burning pain. Keep the area clean and watch it as it heals; the main thing to guard against is a secondary skin infection from scratching, so try to leave it alone. See a doctor if the pain is severe, if the redness spreads or the site looks infected, or if you are simply unsure, and call the Victorian Poisons Information Centre on 13 11 26 for advice at any hour. Keeping the wound clean is the practical priority once the initial sting has passed.
Reducing white-tail encounters at home
Because white-tails hunt other spiders, the most durable way to reduce them is to reduce the prey population that keeps them fed. Clearing black house spider webbing from around windows, eaves and fences removes the food supply, and switching exterior lighting to warm-toned globes draws fewer of the flying insects that feed the whole chain of spiders in the first place. Sealing the gaps around windows and doors, and where pipes and cables pass through the external walls, closes the routes ground-hunting spiders use to get inside after dark.
Indoors, a few simple habits cut the chance of an accidental bite: keep clothing off the floor, shake out shoes and any garments that have been left out, store items in sealed containers where you can, and check the bed before getting in during the warmer months when the spiders are most active. These steps help, though on a property that is already supporting a settled spider population they work best alongside a professional treatment that clears the prey species the white-tails are following.
How Protech treats white-tailed spiders
Because the white-tail follows its prey, an effective treatment concentrates on the spider population it hunts as much as on the white-tails themselves. Our technician walks the property to find where black house spiders and other prey are established, then applies a residual band to the eaves, window and door reveals, weep holes, fence lines and the garden perimeter, and removes the webbing that sustains those populations. As the prey species are cleared, the wandering white-tails lose the food supply that drew them to the house.
Internal harbourage is treated where it is needed, and we talk through the practical habits that keep the risk of an accidental indoor bite low. Our team covers spider control for homes and commercial premises across Melbourne, and every spider treatment is backed by our pest-free guarantee. If you are finding white-tailed spiders indoors, especially in bedrooms and wardrobes, an inspection will identify what is feeding them and clear it. Call our Melbourne team on 03 9449 4244 or request a free quote, and we will arrange a visit, most often the same day.
White-tailed spider FAQs
Do white-tailed spiders really cause flesh-eating wounds?
No. This is a well-investigated myth that still circulates. A monitored medical study of more than one hundred verified white-tailed spider bites found not a single case of skin ulceration, and healthdirect now states that current evidence suggests white-tail bites do not cause skin ulcers. The genuine symptoms are local burning pain, redness and swelling that settle over a few days to a couple of weeks. A white-tail bite is not the flesh-eating emergency that older media accounts described.
What does a white-tailed spider look like?
It is a slim, cigar-shaped spider with a dark reddish-grey to grey-black body and dark orange-brown banded legs. Males reach about 12 millimetres and females about 18 millimetres. The feature that names it is a distinct white or pale spot at the very tip of the abdomen. It builds no capture web, so it is usually seen out in the open on a wall or floor at night.
Why do white-tailed spiders come inside?
They are active night hunters that follow their prey, and their preferred prey is other spiders, including the black house spiders that live around window frames and eaves. A home with those spiders present is a good hunting ground. White-tails wander indoors after dark and shelter through the day in quiet, dark folds such as bedding, clothing left on the floor, towels and stored items, which is how most accidental bites happen.
What should I do if a white-tailed spider bites me?
Wash the area with soap and water and apply a cold pack to ease the burning pain. The bite is not dangerous in a healthy adult and the discomfort usually settles on its own, so keep an eye on it and see a doctor if the pain is severe, if the redness spreads, or if you are concerned. You can call the Victorian Poisons Information Centre on 13 11 26 for advice at any hour.
How do I keep white-tailed spiders out of the bedroom?
Because white-tails hunt other spiders, the most effective step is reducing the spider and insect population the house supports. Clear webbing from around windows and eaves, switch exterior lighting to warm-toned globes that draw fewer insects, and seal gaps around windows, doors and where pipes enter the walls. Indoors, keep clothing off the floor, shake out shoes and clothes that have been left out, and check bedding before use, particularly through the warmer months when the spiders are most active.
Do you guarantee spider treatments?
Yes. Our spider treatments are backed by our pest-free guarantee. If spiders return within the guarantee period we come back and re-treat at no additional charge, and the length of that cover is confirmed in writing with your quote.
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