Lyla Lindsey
Spiders in Australia vary in appearance, from the small and harmless Daddy long legs to the large and intimidating Wolf Spider and Huntsman. Some spiders in Australia are known for their colourful and decorative bodies, like the Spiny Spider or Jewel Spider, while others are more subdued in colour but have distinctive patterns, like the Long-Jawed Orb Weaver with its slim body and very long legs. The Trapdoor spider is a large, furry black spider similar to the Funnelweb, one of the two lethal Australian spiders. While most spiders in Australia are not dangerous to humans, some can cause localised reactions with symptoms such as swelling, pain, sweating, nausea, vomiting and headaches.
| Characteristics | Values |
|---|---|
| Variety | Spiders in Australia come in a variety of colours, shapes, and sizes. |
| Habitat | Spiders can be found in leaf litter, tree bark, garden beds, and even on walls and fences. They are also commonly found in houses and cars. |
| Behaviour | Some spiders build webs, while others are hunters that chase their prey. Some are active during the day, while others are nocturnal. |
| Danger to Humans | Most spiders in Australia are not considered dangerously toxic to humans. However, some species, such as the Sydney funnel-web spider, are highly venomous and can be lethal. Other venomous spiders include the redback spider and the wolf spider, but their bites typically cause only mild symptoms. |
| Examples | Peacock spiders, Huntsman spiders, Daddy long legs, Trapdoor spiders, White-tailed spiders, Wolf spiders, St Andrew's Cross Spiders |
Explore related products
What You'll Learn
- Huntsman spiders are hairy, long-legged and mostly grey to brown
- Daddy long legs are tiny-bodied with super-thin legs and generally harmless
- Sydney funnel-web spiders are highly venomous with deadly bites
- Peacock spiders are dazzling and endemic to Australia
- White-tailed spiders are small and not aggressive
Huntsman spiders are hairy, long-legged and mostly grey to brown
Spiders in Australia vary in appearance, but one of the most distinctive is the Huntsman spider. These spiders are large, hairy, and long-legged, with a body length of about 1.8 cm (0.7 in) and a leg span of up to 15 cm (5.9 in). They are mostly grey to brown in colour, sometimes with banded legs, and have eight eyes. Their bodies are flattened, allowing them to live in narrow spaces under loose bark or in rock crevices. This adaptation is further aided by their crab-like legs, which spread out forwards and laterally, rather than bending vertically.
The Brown Huntsman (Heteropoda) and Badge Huntsman (Neosparassus) spiders have less flattened bodies. The Brown Huntsman is patterned in mottled brown, white, and black, while the Badge Huntsman is brown and hairy. The Banded Huntsman (Holconia) is grey to brown with striped bands on its legs. The Green Huntsman (Micrommata virescens) is native to Northern and Central Europe, while the Cane Huntsman (Heteropoda venatoria) and Social Huntsman (Delena cancerides) are found in many subtropical parts of the world, including New Zealand and Australia.
Huntsman spiders are known for entering human dwellings, often seeking out narrow spaces. They are commonly found in houses and cars, hiding behind sun visors or running across dashboards. They are able to move extremely quickly, sometimes using a springing jump, and can even walk on walls and ceilings. Huntsman spiders are not considered dangerously venomous, but their bites can cause prolonged pain, inflammation, headache, vomiting, and an irregular pulse rate.
Huntsman spiders feed primarily on insects and other invertebrates, and occasionally small skinks and geckos. They do not build webs but hunt and forage for food. The female Huntsman produces a flat, oval egg sac of white papery silk, laying up to 200 eggs. She then places the egg sac under bark or a rock and stands guard over it for about three weeks without eating. During this time, the female can be quite aggressive and will defend her eggs if provoked.
Australian Migration: Past, Present, and Future Trends
You may want to see also
Explore related products
Daddy long legs are tiny-bodied with super-thin legs and generally harmless
Spiders in Australia vary in colour, shape, and size, with some species making distinctive webs and others digging holes. Daddy long legs spiders, or Pholcidae, are one of the most common spiders in Australia. They are easily recognisable by their extremely long, skinny legs and tiny bodies. Their body can be up to 1 cm long, but their legs can be much longer, depending on the species. They are typically a pale brown or creamy colour and can have darker markings on their legs and abdomen. They are often found in urban areas, particularly in and around houses. They make thin, tangled webs in sheltered positions where they are unlikely to be disturbed, such as under furniture, behind doors, in the corners of ceilings, in sheds, in garages, and under decks.
Daddy long legs spiders are generally considered harmless to humans. While they can bite humans, their venom is not medically significant. There is an urban legend that daddy long legs spiders have the most potent venom of any spider, but their fangs are too small or weak to puncture human skin. This myth was debunked on the Discovery Channel television show MythBusters, where host Adam Savage reported feeling a mild, short-lived burning sensation from a bite. The bite penetrated his skin but did not cause any notable harm. Most reputable sources, including the University of California, Riverside, still maintain that this species would not be considered harmful to humans.
Daddy long legs spiders are known for their distinctive alternating tetrapod gait, where they move by alternating their right and left legs in a specific sequence. They are also surprisingly good mothers, wrapping their eggs in silk and carrying them around in their mouths for about three weeks until they hatch. The baby spiders then ride on their mother's back until they are ready to leave her protection. In their first year of life, they reach adulthood and can then live for up to two more years as adults. During this time, a female can have up to eight clutches of 50 or more eggs, resulting in over 400 baby spiders!
Despite their small size, daddy long legs spiders are capable hunters. They can catch, wrap, and kill much larger spiders, such as the Huntsman spider. They are also quite adaptable, regularly finding their way back into homes even after being removed. Their successful use of human-made structures and their ability to prey on deadly venomous spiders have contributed to their widespread presence in Australia.
Dental Care in Australia: What's Covered and What's Not?
You may want to see also
Explore related products
![Spiders of Australia [OP]: Interactive Identification to Subfamily (ABRS Identification Series)](https://m.media-amazon.com/images/I/31fVMD-b+aL._AC_UY218_.jpg)
Sydney funnel-web spiders are highly venomous with deadly bites
Spiders in Australia vary in colour, shape, and size. One of the most venomous spiders in Australia is the Sydney funnel-web spider (Atrax robustus). It is a member of the Australian funnel-web spiders group and is native to eastern Australia, usually found within a 100 km radius of Sydney. The Sydney funnel-web spider is highly venomous and its bite can be deadly, especially to small children. The venom of the male Sydney funnel-web spider is considered more toxic than that of the female due to the presence of a unique component called Robustoxin (δ-Atracotoxin-Ar1). This toxin severely affects the nervous systems of humans and other primates, but not of other mammals.
The Sydney funnel-web spider typically grows to a length of 1 to 5 cm and is darkly coloured, ranging from blue-black to shades of brown. They build silk-lined tubular burrows with funnel-shaped entrances from which they spin silken trip-lines to detect prey. These spiders are often found in sheltered habitats under rocks, logs, or tree borer holes, where they can find a moist and humid climate.
The bite of a Sydney funnel-web spider can cause serious illness or death if left untreated. Symptoms of envenomation include drooling, goosebumps, tears, muscular spasms, an elevated pulse, and disorientation. The onset of symptoms is rapid, with a median time of 28 minutes, and death can occur within 15 minutes in small children. Since the development of an antivenom in 1981, there have been no recorded fatalities from Sydney funnel-web spider bites. This antivenom has been distributed to major city and regional hospitals and has effectively reduced the fatality rate from these spider bites.
It is important to note that the Sydney funnel-web spider is not the only venomous spider in Australia. Other spiders, such as the redback spider, have also been historically linked to deaths in medical records. While most Australian spiders are not considered dangerously toxic, it is always advisable to seek medical attention if bitten by any spider and to treat all funnel-web spider bites as potentially dangerous.
Are Australian Police Cars Equipped With Speed Cameras?
You may want to see also
Explore related products
Peacock spiders are dazzling and endemic to Australia
Spiders in Australia come in a variety of colours, shapes, and sizes. While some spiders in the country are venomous, most are harmless. Among the many spiders found in Australia, the peacock spider is a unique species native to the continent.
Peacock spiders (Maratus spp.) are endemic to Australia, with the majority of them being ground-dwelling. They are found on leaf litter or dry twigs, and their appearance is dazzling with bright colours and patterns. The male peacock spiders are particularly striking, with colourful abdomen flaps resembling a peacock's fan. These flaps are used to attract female partners during courtship rituals. The male abdomen contains scales that produce a colourful display, with some males able to change the colour of their scales from red to green to violet through slight movements. The female peacock spiders are more subdued in colour, mimicking leaf scars on dry twigs, which acts as a form of camouflage.
The peacock spider's visual system is highly advanced, allowing them to see the full visible spectrum as well as ultraviolet light. This ability helps them in hunting and navigating their environment. They have eight eyes equipped with a telephoto lens, a tiered retina, and ultraviolet-sensitive photoreceptors. Their primary eyes provide acute vision, while their secondary eyes aid in motion detection. In addition to their visual system, peacock spiders also use vibrations during their mating rituals. These vibrations, such as rumble-rumps, crunch rolls, and grind-revs, are produced by rapid movements of their abdomen.
The peacock spider's hunting strategy involves stalking their prey using their keen eyesight and then chasing and leaping onto their target to deliver a fatal bite. They do not rely on webs to catch their prey. Their powerful legs, equipped with an internal hydraulic system, enable them to jump up to 40 times their body length. This ability not only helps them in hunting but also in escaping predators. The breeding season for peacock spiders is during the Austral Spring, when males perform their colourful displays and complex mating rituals.
There are currently over 100 identified species of peacock spiders, with new discoveries being made regularly. They are found in various habitats across Australia, including Queensland, New South Wales, Australian Capital Territory, Western Australia, and Tasmania. The discovery and rediscovery of certain species, such as M. harrisi, have even inspired award-winning documentaries, bringing attention to the fascinating world of these dazzling arachnids.
Uncover Your Car's History in Australia: A Step-by-Step Guide
You may want to see also
Explore related products
White-tailed spiders are small and not aggressive
Spiders in Australia vary in colour, shape, and size. While most spiders in the country are harmless, some species are venomous and dangerous. The Sydney funnel-web spider, for example, is considered one of the two lethal Australian spiders due to its highly deadly venom and offensive behaviour when threatened.
One of the common spiders in Australia is the White-tailed spider, which is native to southern and eastern parts of the country. White-tailed spiders are slender, with a body size of up to 18 mm and a leg span of around 28 mm. They are typically dark reddish to grey with cigar-shaped bodies and dark orange-brown banded legs. The abdomen has two pairs of faint white spots and a whitish tip, giving them their name.
Despite their reputation, White-tailed spiders are not aggressive and do not actively seek out humans to bite. They are vagrant hunters that seek out and envenom their prey, typically other spiders such as curtain-web spiders, daddy-long-legs spiders, redback spiders, and black house spiders. Bites to humans usually occur when the spider feels threatened, such as when trapped against the skin during dressing or sleeping. The effects of their bites include local pain, redness, swelling, and itchiness, with rare systemic effects like nausea, vomiting, malaise, or headaches.
While White-tailed spider bites have been implicated in severe skin ulceration, studies of verified Lampona bites have not found any cases of necrotising ulcers. The urban myth of their bites causing large flesh-eating wounds has never been verified. Instead, other causes like infections have been identified. Out of 130 studied cases of White-tailed spider bites, no necrosis or confirmed infections were found, suggesting that severe outcomes are unlikely.
Foster's: Australia's Beloved Beer?
You may want to see also
Frequently asked questions
Spiders in Australia come in a variety of colours, shapes, and sizes. Some spiders are large and hairy, like the Huntsman spider, which is also known as the "tarantula". Some spiders are colourful, like the Peacock spider, which is endemic to Australia, and the Spiny or Jewel spider, which is often found in gardens. Some spiders are small, like the Daddy long legs, which is a common house spider.
The Sydney funnel-web spider is one of the most venomous spiders in Australia. It is large and black, and it is often mistaken for the relatively harmless Trapdoor spider. The Redback spider is another highly venomous spider in Australia, and its bites have been linked with deaths in medical records.
The Trapdoor spider looks similar to the Sydney funnel-web spider but is mostly harmless. The Daddy long legs is another spider that is generally regarded as harmless. The Slater spider, which mimics the appearance of a woodlouse, is not harmful to people, and its bites cause only minor irritation.
