Australian Spiders: Identification & First Aid

Australia has thousands of spider species. Fortunately, the vast majority are harmless. Only a handful of spiders in Australia pose serious risks to people. That is why knowing how to identify them and apply the correct first aid can be the difference maker that saves lives. Throughout this article, we’ll identify several dangerous spider species in Australia, as well as the first aid steps to follow if you or a loved one get bitten. 

Before we get started, remember that if someone is bitten or feels unwell, call 000 immediately or contact the Poisons Information Centre on 13 11 26 for advice. 

Quick ID Cards (Common Species)

Below are quick identification guides for some of the most common spiders in Australian homes and gardens that people need to watch out for. Also included are quick first aid steps to take if one were ever to be bitten by these spiders. 

Redback Spider (Latrodectus hasselti)

• Identification: A small spider, with female sizes going up to 1 cm. They have black bodies with distinctive red or orange stripes on the upper abdomen.
• Habitat: The redback is usually found in dry, sheltered areas such as garden sheds, outdoor furniture, mailboxes, and under ledges. 
• Distribution: Australia-wide, especially in warmer regions. 
• Risk level: High – venomous but rarely fatal due to effective antivenom.
• First Aid:
  1. Keep the person as still as possible.
  2. Apply a cold pack to the bite area in order to relieve pain.
  3. Do not use a pressure immobilisation bandage.
  4. Seek medical help if symptoms are severe (e.g., intense pain, sweating, muscle weakness).
  5. Call 000 if symptoms progress or the person is a child or elderly.

Sydney Funnel-Web Spider (Atrax robustus)

• Identification: These large spiders have a glossy black body and prominent fangs.
• Habitat: The funnel-web spider resides in moist, cool areas such as under logs, rocks, or in garden burrows.
• Distribution: Primarily New South Wales – Sydney region and surrounding coastal areas.
• Risk level: Very High – potentially life-threatening. However, antivenom is available.
• First Aid:
  1. Call 000 immediately.
  2. Apply the pressure immobilisation technique starting from the bite site and wrapping all the way upwards.
  3. Keep the person still and calm as much as possible.
  4. Do not wash the bite site (venom samples assist in identification).

Huntsman Spider (Family Sparassidae) 

• Identification: The huntsman spiders are also large-bodied spiders. They are flat-bodied (up to 15 cm leg span), hairy, and usually come in grey or brown.
• Habitat: The huntsman are a sneaky species and are usually found behind curtains, under car sun visors, and on tree bark.
• Distribution: All throughout Australia.
• Risk level: Low – non-aggressive. Bites from the huntsman are rare and mild.
• First Aid:
  1. Wash the area with soap and water.
  2. Apply a cold pack for pain or swelling.
  3. Seek medical attention if symptoms worsen.

Black House Spider (Badumna insignis)

• Identification: Dark brown to black, 1 to 2 cm in size, velvety appearance, funnel-shaped web in corners and window frames.
• Habitat: Black house spiders are usually found in houses, sheds, rock walls, and tree trunks. 
• Distribution: Commonly found in southern and eastern Australia. 
• Risk level: Low to moderate – painful bites are possible but not fatal or dangerous.
• First Aid:
  1. Clean the bite with soap and water.
  2. Apply a cold compress.
  3. Monitor for any signs of infection.

White-Tailed Spider (Lampona spp.)

• Identification: The white-tailed spider’s body is slim and either grey or dark in color. It has a distinctive white tip on the abdomen. 
• Habitat: Indoors at night, bedding, clothes, and bathrooms. 
• Distribution: Australia-wide. 
• Risk level: Low – the myth of their bites causing tissue damage has been debunked; it causes local irritation only. 
• First Aid:
  1. Wash with soap and water.
  2. Apply a cold pack for pain relief.
  3. See a doctor if redness or swelling increases. 

Wolf Spider (Lycosidae Family)

• Identification: Brown, robust spiders that often have two dark stripes on their backs. 
• Habitat: These spiders can be found in burrow, leaf litters, lawns, and gardens. 
• Distribution: Australia-wide. 
• Risk level: Low – mild pain or swelling are the only effects of their bites. 
• First Aid:
  1. Wash with soap and water.
  2. Use a cold pack for pain. 

Garden Orb Weaver (Araneidae Family)

• Identification: The garden orb weaver has fat, round abdomens. They come in varied colours (brown, grey, orange).
• Habitat: They can be found in gardens, bushes, and fences. They are also found in large circular webs at night. 
• Distribution: Common across all states.
• Risk level: Low – non-aggressive.
• First Aid:
  1. Clean with soap and water.
  2. Apply a cold pack for pain if needed.

Daddy-Long-Legs (Pholcidae Family)

• Identification: Very long thin legs, small bodies, often found in corners and ceilings. 
• Habitat: Indoors, sheds, garages. 
• Distribution: Australia-wide. 
• Risk level: Harmless – no medically significant bites.. 
• First Aid:
  1. No treatment needed

State Callouts

• Victoria: Redbacks common in sheds and garages. 
• Queensland: Huntsman and garden orb weavers frequent in tropical gardens.
• NSW: Funnel-webs most concerning, particularly around Sydney. 
• WA & SA: Redbacks frequent; funnel-webs not native.
• Tasmania: Wolf and orb weaver spiders most often seen. 

When to Seek Medical Help

Even though most spider bites in Australia cause only mild symptoms, it’s important to know when a bite could become serious. Quick medical attention can prevent complications and ensure the right treatment is given — especially for bites from venomous species such as the Sydney funnel-web or redback spider.

Call 000 immediately if:

• The person experiences severe or spreading pain, muscle twitching, sweating, vomiting, or difficulty breathing.
• The bite is suspected to be from a funnel-web, redback, or unknown large black spider.
• The patient is a child, elderly person, pregnant woman, or someone with a known allergy.
• Systemic symptoms appear, such as confusion, restlessness, drooping eyelids, or rapid heartbeat.
• Symptoms worsen after first aid — for example, increasing redness, swelling, or pain despite treatment.

If the person loses consciousness, start CPR immediately and follow the DRS ABCD action plan while waiting for expert.

For all other bites — especially if you’re uncertain of the species — contact the Poisons Information Centre on 13 11 26 (available 24 hours across Australia). They can provide free, expert advice on what to do next, whether hospital care is needed, and how to manage pain or swelling safely at home.

Never assume a bite is harmless. If in doubt, treat the situation seriously until you receive professional guidance.

Prevention at Home & Outdoors

The best way to handle spider bites is to avoid them altogether. Simple habits and awareness can significantly reduce your risk of encountering spiders at home, in the garden, or while camping.

At Home

• Declutter sheds, garages, and outdoor furniture where spiders like to hide.
  
• Seal cracks and gaps around doors, windows, vents, and skirting boards to prevent entry or return of spiders.
  
• Keep outdoor lighting minimal, as it attracts insects and spiders.
  
• Shake out clothing, towels, and shoes before wearing or using them, especially if stored on the floor.
  
• Vacuum regularly, including corners, ceilings, and under furniture where webs form.
  
• Keep bedding off the floor in areas known for spider activity.

In the Garden or Outdoors

• Wear gloves when gardening, collecting firewood, or handling debris.
  
• Inspect outdoor toys, boots, and garden tools before use.
  
• Avoid leaving clothes or shoes outside overnight, particularly in warm climates.
  
• Be cautious in bushland or under rocks and logs, where funnel-webs or wolf spiders may shelter.
  
• Teach children and visitors to look but not touch spiders — curiosity should always be paired with caution.

Health authorities recommend combining these habits with calm, informed responses if a bite does occur. Awareness and preparedness, rather than fear, are the key to staying safe in Australia’s spider-rich environment.

Myths vs Facts

Myth	Fact
All big spiders in Australia are deadly.	False. While their size can be intimidating, most large species — including huntsman and orb weavers — are harmless and help control pests.
You should use pressure immobilisation for all spider bites.	False. The pressure immobilisation technique (PIT) is only for funnel-web or unknown large black spider bites. It should never be used for redback bites, as it can increase pain.
White-tailed spider bites cause flesh-eating ulcers.	False. Multiple studies, including those referenced by Healthdirect and Australian Museum, show no link between white-tailed bites and necrotic ulcers. They typically cause only mild irritation.
You should catch the spider and take it to the hospital.	False. Do not handle or chase the spider. If it’s safe, take a clear photo instead. Medical staff and poisons experts can identify the species based on your description.
All spider bites need antivenom.	False. Antivenom is only used for severe funnel-web and redback bites. Most other bites require simple cleaning, cold packs, and observation.