Ruqayyah Snyder
Australia is home to thousands of wasp species, including the invasive European wasp, which is one of the country's most common and aggressive varieties. While the size of wasps varies, the European wasp measures around 12-20mm in length, while the Australian paper wasp is typically 15-25mm long, and the mud dauber wasp is around 10-25mm in length. The largest species of mudnest wasp has a wingspan of approximately 50mm.
| Characteristics | Values |
|---|---|
| Number of wasp species in Australia | 10,000+ |
| Common wasp species | European wasp, Paper wasp, Mud dauber wasp, Sand wasp, Cuckoo wasp, Gasteruption wasp, Potter wasp, Spider wasp, Hornet |
| European wasp length | 12-20 mm |
| Australian Paper wasp length | 15-25 mm |
| Mud dauber wasp length | 10-25 mm |
| Hornet wasp length | 30 mm+ |
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What You'll Learn
European wasps are 12-20mm long
Australia is home to a diverse range of insect species, including several types of wasps. One of the most common and aggressive wasps in Australia is the European wasp, commonly known as the German wasp. These wasps are medium-sized, measuring around 12-20mm in length, with bright yellow and black stripes on their abdomen. They are native to Europe but are now a major pest in Australia, with the ability to form large colonies.
European wasps are highly invasive in Australia, particularly in urban areas, gardens, and picnic spots across southeastern states, including New South Wales, Victoria, and Tasmania. They are known for their painful sting and can sting multiple times, making them a significant threat to human health. Their nests are often located underground in raised banks, protected from flooding, or in buildings and trees, with a single entrance to the nest.
The European wasp, with the scientific name Vespula germanica, has become a serious pest in Australia due to its aggressive nature and ability to form large colonies. They are often found in areas where food is present, such as barbecues, and can be a nuisance during outdoor gatherings. Additionally, they can pose a risk to local ecology by competing with native wasp species.
The European wasp is not the only introduced species in Australia. Another similar pest is the 'Common Wasp' or Vespula vulgaris, which differs only in its facial markings. These two species can be challenging to distinguish, and a close-up identification is often required.
Understanding the size and characteristics of European wasps in Australia is essential for proper identification and management. Their size, ranging from 12-20mm, sets them apart from some other wasp species in the region, and their bright yellow and black stripes are distinctive features.
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Paper wasps are 15-25mm long
Paper wasps are widespread throughout Australia and are generally non-aggressive, only stinging when they feel threatened. They are reddish-brown to black, with yellow or orange markings, and have slender bodies that typically measure 15-25mm in length. They are known to hang their nests under building eaves or in low garden shrubs.
The European wasp, commonly known as the German wasp, is one of Australia's most common and aggressive wasps. They are medium-sized, measuring around 12-20mm in length, with bright yellow and black stripes on their abdomen. They are known for their painful sting and are capable of stinging multiple times. They form large colonies and are considered a serious pest in Australia.
In addition to paper wasps and European wasps, Australia is home to a diverse range of wasp species, including mud dauber wasps, sand wasps, cuckoo wasps, gasteruption wasps, and hornets. Mud dauber wasps are solitary and non-aggressive, measuring around 10-25mm in length. They construct nests from mud and are commonly found around buildings and in rural areas. Sand wasps are also non-aggressive and make their solitary nests in sandy soil. They can deliver a painful sting if their nest is disturbed.
Cuckoo wasps are known for their bright metallic blue and green colours, while gasteruption wasps have long ovipositors for inserting eggs into the nests of solitary bees. Hornets are often used as a term for any large wasp in Australia, especially those that are black and orange or yellow. However, true hornets do not naturally occur in Australia, and the term is more accurately applied to social wasps of the genus Vespa, which develop large, well-defended colonies.
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Mud dauber wasps are 10-25mm long
Australia is home to a diverse range of insect species, including several types of wasps. While some wasps are beneficial as predators of other pests, others can pose a threat due to their stinging capabilities.
Mud dauber wasps, also known as mudnest wasps, are solitary wasps that construct nests from mud. They have long and slender bodies, usually black or brown in colour, and measure around 10-25mm in length. They are commonly found throughout Australia, including in urban and rural areas, and are often seen around buildings, fences, structures, gardens, and rural environments. Mud dauber wasps are generally non-aggressive and rarely sting unless provoked, making them less dangerous than other wasp species. They are considered beneficial due to their hunting of spiders, which they paralyse and use to provision their nests.
Mud dauber wasps are an example of a solitary wasp species, as most wasp species in Australia are solitary. Solitary wasps, like the mud dauber, are non-aggressive and only sting if they feel directly threatened or handled roughly. In contrast, social wasp species like the European wasp, which is an invasive species in Australia, are known for their aggressive behaviour and ability to sting multiple times.
The size of mud dauber wasps, at 10-25mm in length, is comparable to other wasp species in Australia. For example, the European wasp, one of Australia's most common and aggressive wasps, measures around 12-20mm in length. Similarly, Australian paper wasps, which are widespread across mainland Australia, typically measure between 15-25mm in length.
While mud dauber wasps may be less aggressive than other wasp species, it is important to exercise caution around them, especially if you are allergic to their stings. If you encounter a mud dauber wasp nest, it is best to leave it undisturbed to avoid provoking the wasps and risking a sting.
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Sand wasps deliver painful stings
Australia is home to a diverse range of insect species, including several types of wasps. While some wasps are beneficial as predators of other pests, others pose a threat due to their stinging capabilities.
The Sand Wasp, for instance, is a non-aggressive wasp often found hovering close to people's faces while attempting to catch flies. They are often yellow and black, or white and black, with a pale green banded pattern. Sand wasps make their solitary nests in sandy soil and can be found in woods, woodlands, and urban areas across Australia.
Sand wasps can deliver a painful sting if their nest is disturbed. Wasp stings typically result in an itchy and painful welt. While most people recover quickly and without complications, it is important to administer prompt treatment to alleviate symptoms and complications. The initial sensations can include pain, redness, swelling, and itching around the sting site, which usually resolve within a few days.
In some cases, more pronounced symptoms known as "large local reactions" may occur, indicating a possible allergy to wasp stings. These reactions are characterised by significant swelling and redness extending beyond the sting site and can be more uncomfortable and take longer to heal. Anaphylaxis, a severe allergic reaction to wasp venom, can also occur in rare cases, causing the body to go into shock.
It is worth noting that not all wasps in Australia are aggressive. Australian Paper Wasps, for instance, are generally non-aggressive and only sting in self-defence. However, provoking their nest can lead to multiple stings. Similarly, Mud Dauber Wasps are considered non-aggressive unless severely allergic, stinging only when directly handled or threatened.
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Cuckoo wasps parasitise mud dauber wasps
Australia is home to a diverse range of insect species, including several types of wasps. One particular wasp, the cuckoo wasp, has an interesting method of ensuring its survival.
Cuckoo wasps, also known as Chrysididae, are a group of 76 species that mostly parasitise other wasps, specifically the mud-dauber wasp. They are usually a shiny, metallic blue or green colour and can be found throughout Australia in urban areas, forests, woodlands, and heath.
Like the cuckoo bird, cuckoo wasps use another wasp's nest for their own young. They exhibit a distinctive "'scurry and fly' search pattern" when looking for host nests. Once a suitable nest is found, the female cuckoo wasp lays her egg next to the egg of the host species.
The cuckoo wasp's egg hatches first, and the larva consumes the food stored for the mud-dauber's young. Some cuckoo wasp larvae even wait for the host larvae to hatch and eat their meal before attacking and eating them, a behaviour known as kleptoparasitism or cleptoparasitism.
If a female cuckoo wasp is discovered invading a mud-dauber's nest, she has evolved defences to protect herself. She rolls into a ball and uses special armour plates on her body, a thick integument, to shield herself from the host's stings and biting mandibles.
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Frequently asked questions
There are thousands of wasp species in Australia, so their sizes vary. Here are some of the most common wasps and their sizes:
- Paper wasps: 15-25mm in length
- European wasps: 12-20mm in length
- Mud dauber wasps: 10-25mm in length
- Cuckoo wasp: small enough to roll into an armoured ball to protect itself
- Spider wasps: large enough to drag a paralysed spider to a burrow
- Mudnest wasps: wingspan of approximately 50mm
- Potter wasps: under 10mm to over 30mm in length
The most common wasps in Australia include paper wasps, European wasps, mud dauber wasps, and sand wasps.
Wasps can be found throughout Australia, including in urban and rural areas. They are commonly seen near buildings, fences, structures, gardens, and natural environments like woods and woodlands.
While most wasp species in Australia are non-aggressive and only sting in self-defence, some species are aggressive and can pose a threat. Wasp stings can be very painful and may result in severe allergic reactions or, in rare cases, death.
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