Most Common Spiders in Sydney

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• Sydney is home to over 3,500 spider species, with the Redback, Funnel Web, Huntsman, Wolf, and Garden Orb Weaving spiders among the most common.

• The Redback Spider is dangerous, with venom causing severe symptoms, but antivenom is available and fatalities are rare.

• The Funnel Web Spider is one of Australia’s most venomous spiders, requiring urgent medical attention if bitten.

• The Huntsman Spider, despite its large size and hairy look, is harmless to humans and helps control insect populations.

• The Wolf Spider may bite but generally only causes mild irritation and swelling, playing a role in natural pest control.

• The Garden Orb Weaving Spider is widespread in Sydney gardens and parks, harmless to humans but known for their large webs.

• First aid for spider bites includes cleaning the wound, applying a cold pack, elevating the limb, and avoiding scratching.

• Seek emergency care if symptoms include severe pain, difficulty breathing, allergic reaction, or signs of infection.

• Prevention tips: seal entry points, reduce clutter, shake out shoes/clothing, keep gardens tidy, and wear protective gear outdoors.

• Taking a first aid course (HLTAID011 Provide First Aid) equips you with the skills to manage spider bites and other emergencies effectively.

This guide will introduce you to some of the most common spiders in Sydney, such as the Redback Spider, Garden Orb Weaving Spider, Funnel Web Spider, Huntsman Spider and Wolf Spider. Additionally, we will discuss first aid for spider bites, symptoms, when to seek medical attention, and how to prevent spider bites in Australia.

Spiders in Sydney

Sydney is home to a wide variety of wildlife, including many spiders. According to the Environment and Heritage website, a part of the Department of Climate Change, Energy, the Environment and Water, Australia has an estimated 3,500 species of spiders.

The Redback Spider

The Redback Spider (Latrodectus hasselti) is a venomous spider indigenous to Australia.

What Does a Redback Spider Look Like?

The Redback Spider is easily recognizable due to its distinctive appearance:

Female Redback Spiders:

• Black with a prominent red stripe on their back
• Can grow up to 10 millimetres in body length

Male Redback Spiders:

• Smaller and lighter in colour
• Often brown with white markings
• Usually around 3-4 millimetres in body length

Where is the Redback Spider’s Habitat?

Redback Spiders are commonly found in urban areas, particularly in sheltered locations and in Sydney households:

• Under rocks or logs
• Garden sheds
• Tend to build webs in dark, undisturbed areas around homes

Is the Redback Spider Dangerous?

Yes, the Redback Spider is considered dangerous due to its venom, which can cause severe pain and other symptoms. Bites from female Redbacks can result in serious medical issues, including nausea, vomiting, sweating, and muscle pain. However, antivenom is available, and fatalities are extremely rare. Bites from these spiders are potentially life-threatening, and first aid should be administered immediately. 

The Funnel Web Spider

Funnel Web Spiders are usually found in Sydney. According to the Australian Museum, they are considered one of the most notorious members of spider fauna.  

What Does a Funnel Web Spider Look Like?

Funnel Web Spiders are giant, robust spiders with a glossy black or dark brown body. Aside from these, these are the physical characteristics of a Funnel Web Spider:

• Shiny shell
• Deeply curved groove
• No obvious body pattern
• Eyes close together
• Four spinnerets, with the largest one having a long last segment
• The lower lip has short, blunt spines
• They can grow up to 5 centimetres in body length, making them one of the more enormous spiders in Sydney.

Where is the Funnel Web Spider’s Habitat?

Funnel Web Spiders prefer moist, relaxed environments:

• Typically found in caves, crevices, and under rocks or fallen logs
• In urban areas, they may be encountered in gardens, sheds, or even inside homes
• Especially seek shelter inside homes after heavy rains

Is the Funnel Web Spider Dangerous?

Yes, the Funnel Web Spider is one of the most dangerous spiders in Australia. Its venom can be lethal if not treated promptly. Symptoms of a Funnel Web bite include severe pain at the bite site, sweating, nausea, and difficulty breathing. Immediate medical attention is crucial.

The Huntsman Spider

Australian Huntsman Spiders, also known as the Giant Crab Spiders, are part of the Sparassidae family and are known for their hairy appearance. Despite its scary appearance, the Huntsman Spider is generally harmless and vital in controlling insect populations.

What Does a Huntsman Spider Look Like?

They are often mistaken for tarantulas because of their hairy appearance but can be easily recognized by their side-facing legs, similar to those of crabs.

Huntsman Spiders are known for:

• Large size and long legs that can span up to 15 centimetres
• Usually brown or grey with various markings on their body
• Generally non-aggressive despite their intimidating appearance

Where is the Huntsman Spider’s Habitat?

Huntsman Spiders are commonly found in:

• Woody areas, such as forests, woodpiles, and under loose bark
• Urban areas, where they often enter homes, garages, and cars in search of shelter

Is the Huntsman Spider Dangerous?

No, Huntsman Spiders are not considered dangerous to humans. Huntsman Spiders are more likely to flee than attack when disturbed.

The Wolf Spider

According to LiveScience.com, one of the largest and most trusted science websites, there are nearly 2,400 wolf spider species worldwide, including the Australian Wolf Spider. 

What Does a Wolf Spider Look Like?

• Brown, grey, black, or tan with markings that are usually stripes
• Body length ranges from 0.4 to 1.4 inches
• It has a distinctive eye arrangement
• Female wolf spiders are typically more giant than male wolf spiders

Where is the Wolf Spider’s Habitat?

Australian Wolf Spiders prefer habitats where they can easily find and hunt prey. 

• Open woodlands
• Grasslands
• Leaf litter
• Under rocks
• Burrows 

In urban areas like Sydney, they might seek shelter in gardens, sheds, and even inside homes, especially during colder months. 

Is the Wolf Spider Dangerous?

No, Wolf Spiders are not dangerous to humans. Their bite can cause mild irritation and swelling, but they are not evil enough to cause serious harm. They are beneficial predators that help control insect populations.

The Garden Orb Weaving Spider

According to the Australian Museum, Garden Orb Weaving Spiders comprise a large group with over 100 known species in Australia, making them quite common in Sydney.

What Does a Garden Orb Weaving Spider Look Like?

The commonly seen Garden Orb Weavers are:

• Stout, reddish-brown or grey spiders
• Characterized by a leaf-shaped pattern on their fat, roughly triangular abdomens
• Two noticeable humps towards the front of the abdomen
• Sometimes, they have a dorsal stripe that may be white or brown-edged with white

Where is the Garden Orb Weaving Spider’s Habitat?

These spiders are commonly found in:

• Gardens
• Forests
• Other vegetated areas where they can build their orb-shaped webs

They are often seen in urban areas, especially in:

• Gardens
• Parks, hanging in the centre of their webs

Is the Garden Orb Weaving Spider Dangerous?

No, Garden Orb-Weaving Spiders are not dangerous to humans. Their bites may cause mild discomfort and redness, but they are not harmful. According to various pest control companies in Australia, these spiders are more of a nuisance due to their webs than a threat.

What is the First Aid to a Spider Bite?

Knowing how to respond to a spider bite and provide first aid can help ease discomfort and prevent complications.

Immediate First Aid Steps

• Clean the bite area with soap and water to avoid infection.
• Apply a cold pack to reduce swelling and numb the pain.
• If the bite is on a limb, keep it elevated to help minimize swelling.
• Avoid scratching the bite to prevent further irritation and reduce the risk of infection.

When to Seek Medical Attention

• Seek medical help if you experience severe symptoms like intense pain, difficulty breathing, or signs of an allergic reaction or anaphylaxis.
• Additionally, consult a healthcare professional immediately if the bite area shows signs of infection, such as increased redness, pus, or severe swelling.

How to Prevent Spider Bites in Australia?

Home Prevention Tips

• Seal doors, windows, and walls to keep spiders out.
• Regularly clean to reduce spider habitats.
• Remove clutter, such as piles of clothes and boxes, where spiders may hide.
• Use natural or chemical repellents to deter spiders.
• Shake out items like boots and boxes before use.
• Hire a pest control service if dealing with a spider infestation.

Outdoor Prevention Tips

• Alert Spiders When Outdoors
• Always Wear Protective Clothing
• Be Cautious in Spider-Prone Areas
• Keep Your Yard Tidy

Conclusion

Recognizing common spiders in Sydney and their behaviour is essential for safety and appreciating their ecological role. While some spiders can be dangerous, many are harmless and beneficial. Knowing how to respond to bites can help you coexist peacefully with these fascinating arachnids. Taking a first aid course, such as HLTAID011 Provide First Aid, equips you with the skills to handle spider bites and other emergencies. Enrol today and be prepared for any situation.