Huntsman spiders are among the most recognisable arachnids in Australia. They are large, fast, and often startling when spotted on walls or in cars. Despite their size and speed though, these spiders are not considered dangerous to humans. This guide will explain how to identify a huntsman spider, what to do if a person is bitten, and how to safely prevent or relocate them in and around your home.
Quick Facts About the Huntsman Spider
Here are several quick facts to help familiarise you with the huntsman spider.
- Size: Up to a 15 cm leg span, though some species can be larger
- Colour: Brown to grey; some have banded legs
- Behaviour: Nocturnal, non-aggressive, very fast-moving
- Habitat: Common in homes, cars, gardens, and under bark
- Bite Risk: Low; defensive bites are rare and not medically significant
- First Aid: Clean wound, apply ice pack, monitor for infection
Now, let’s delve deeper and discover more about their appearance, size, habitat, and behaviour.
What is a Huntsman Spider?
Appearance & Size
The huntsman spider is known for its large, flattened body and long, laterally extended legs. These are what allow this spider to scuttle about quickly across flat surfaces. Adults typically reach 10 to 15 cm in leg span, with females generally growing larger than males. Their colouring varies from light brown to grey, sometimes with subtle markings that help them blend into tree bark or wall surfaces.
Where They Live in Australia
Huntsman spiders are widespread across Australia, thriving in both urban and rural environments. They are often found:
- Under loose tree bark, rocks and foliage
- Inside homes and sheds, particularly behind curtains or furniture
- In cars, especially under sun visors and dashboards
Their preference for warm, sheltered spaces means you might spot them indoors during cooler months or after rain.
Behaviour & Temperament
Although their sudden movements can be startling to some, huntsman spiders are mostly shy and non-aggressive creatures. They are nocturnal hunters, feeding mainly on insects such as cockroaches and mosquitoes. Bites only occur when the spider feels trapped or threatened. An example would be if they are accidentally handled or if they are cornered.
Are Huntsman Spiders Dangerous?
The truth is that huntsman spiders are not dangerous to humans. Their venom is mild, and their bites rarely cause anything more than minor discomfort.
Typical Symptoms if Bitten
If a bite occurs, symptoms are usually localised and may include:
- Mild to moderate pain at the bite side
- Redness or slight swelling
- Localised warmth or itchiness
These symptoms typically resolve within a day or two with basic first aid.
When to Seek Medical Help
While huntsman bites are not venomous in the dangerous sense, seeking medical attention is still prudent under the following conditions:
- The pain is severe or persistent
- There are systematic symptoms that may include nausea, vomiting, dizziness
- Signs of infected spider bites develop (increasing redness, swelling, pus)
- The bite victim is an infant, elderly person, or immunocompromised
If in doubt or symptoms worsen, contact your GP or call triple Zero (000) for advice.
First Aid for a Huntsman Spider Bite
Do This Immediately
If you or someone else is bitten by a huntsman spider:
- Stay calm – panic increases heart rate and spreads fear unnecessarily.
- Clean the bite with mild soap and water.
- Apply a cold compress or ice pack to reduce swelling and pain.
- Elevate the limb if possible, to help with discomfort.
- Take analgesics (e.g. paracetamol or ibuprofen) according to the label if needed.
Tip: Unlike funnel-web or redback bites, pressure immobilisation is not required for huntsman bites.
Do NOT
- Do not apply a tourniquet.
- Do not cut or suck the wound.
- Do not attempt to capture or kill the spider unless safe to do so for identification.
Monitor & Follow-Up
Keep an eye on the bite site for infection or allergic reaction. If the area becomes increasingly red, swollen, or painful after 24–48 hours, seek medical review.
Ensure the person’s tetanus vaccination is up to date — tetanus can enter through any open wound.
Prevention & What to Do if You Find One at Home
Humane Removal
Huntsman spiders can often be relocated safely without harm to you or the spider. Try the container and card method:
- Place a wide container or jar gently over the spider.
- Slide a piece of stiff paper or cardboard underneath.
- Carry the spider outside and release it into a garden or bushy area.
Avoid using insect spray — it’s unnecessary and harmful to both the spider and the environment.
Home Proofing
To reduce the chances of huntsman spiders entering your home:
- Seal gaps around doors and windows.
- Install flyscreens and door seals.
- Reduce outdoor lighting that attracts insects (their prey).
- Shake out towels, shoes, and clothing left on floors or in garages.
Around Cars
Huntsmen are notorious for sneaking into vehicles. Before driving:
- Check sun visors and dashboards.
- If one appears, pull over calmly and open a window or door to let it leave.
- Avoid swatting while driving — it’s safer to stop and relocate it later.
Huntsman vs Similar Spiders
Australia is home to several large spider species that are sometimes mistaken for huntsmen. Here’s how to tell them apart.
| Feature | Huntsman Spider | Wolf Spider | Funnel-Web Spider |
| Size (leg span) | Up to 15 cm | Up to 5 cm | 3–5 cm (stocky) |
| Body shape | Flat, long legs sideways | Rounder, thicker body | Glossy, robust body |
| Behaviour | Fast, non-aggressive | Ground-dwelling, may burrow | Defensive, highly venomous |
| Bite risk | Low; mild pain only | Mild; may sting | Severe; medical emergency |
| First aid | Clean and apply ice | Clean and apply ice | Pressure immobilisation + 000 |
Understanding these differences helps you respond appropriately without unnecessary panic.
FAQs
Do huntsman spiders chase people?
No. Huntsman spiders do not chase humans. They may appear to run toward you, but this is usually an attempt to find shelter or escape.
Can a huntsman kill you?
No, huntsman spiders cannot kill you. Their venom is not dangerous to humans, and bites are rarely medically significant.
How long do huntsmen live?
Most huntsman spiders live for around two years, although some species can survive longer in ideal conditions.
What attracts huntsmen indoors?
They are often drawn inside by warmth, light, or prey insects. During mating season, males may wander indoors in search of females.
Is a pressure immobilisation bandage used for huntsman bites?
Generally, no. The pressure immobilisation technique is reserved for venomous spiders such as funnel-webs. For huntsman bites, a cold compress is sufficient.
References & Further Help
- NSW Health – Spider Bites
- Queensland Museum – Huntsman Spiders
- Healthdirect Australia – Spider Bites
- CPR First Aid – Spider Bite First Aid Courses
If you ever experience a severe allergic reaction or the person bitten shows signs of distress, call Triple Zero (000) immediately. For non-urgent advice, contact Healthdirect on 1800 022 222.