Insect profile
European Wasp (Vespula germanica)
Vespula germanica
- Database risk label
- MEDIUM
- Location
- Southern Australia
- Database size
- 12-17mm
Risk label: MEDIUM. The European Wasp is an introduced social wasp that is well established in parts of Australia. It can sting repeatedly, and disturbing a nest can provoke an attack. The sensible approach is to keep your distance, avoid treating a suspected nest as something to inspect, and take a sting seriously if symptoms extend beyond the usual local reaction. [1] [2] [5]
The scientific name for this species is Vespula germanica. Agriculture Victoria places it in the order Hymenoptera and family Vespidae. This page concerns that one introduced species, not every yellow-and-black wasp seen in Australia. [1]
Identification: useful clues, not a field diagnosis
A European Wasp is a stout, bright yellow-and-black wasp. Agriculture Victoria describes the abdomen as having black triangle-shaped markings, along with yellow legs, two long black antennae and wings folded when the insect is at rest. It gives worker body length as about 12–16 mm, with queens and males about 17–20 mm. The Australian Museum also notes black spots within the yellow abdominal bands, clear wings and legs held close to the body in flight. [1] [2]
Those marks are useful only at a safe distance. European Wasps can be confused with honeybees and with other wasps, including introduced paper wasps and native species. Similar yellow-and-black striping alone is therefore not a reliable identification. [1] In Tasmania, the European Wasp and English Wasp (Vespula vulgaris) are described as extremely similar and difficult to tell apart. [4]
Do not approach an active insect, a visible entrance hole or a nest to settle the identification. A suspected European Wasp nest deserves distance regardless of a perfect species name.
Australian range and habitat
European Wasps are not native to Australia. They were first recorded in a Hobart suburb in 1959. [1] [4] NSW Department of Primary Industries and Regional Development lists the species as established in Tasmania, South Australia, Victoria and New South Wales, while Tasmania’s biosecurity agency says it has spread to all parts of that state. [3] [4]
Australian sources also document a broader, changing picture. Agriculture Victoria records that by the late 1970s the species had reached southern mainland Australia, including Victoria, New South Wales, South Australia and Western Australia, with isolated nests found in southern Queensland. [1] This is not a live national distribution map.
The species lives in large social colonies. Nests are made from chewed wood pulp or fibre, creating a grey, papery structure. [1] [2] Many are underground or close to the ground. Agriculture Victoria estimates that about 80% occur in ground holes or near-ground sites; others may occur in sheltered roof and wall cavities. [1] The Australian Museum also records nests in soil, logs and tree trunks. [2]
A nest may not look dramatic from outside: the visible sign can be only a small entrance hole, with wasps moving in and out. [2] That is an identification limit and a safety issue. It is not safe to test, block or investigate an apparent entrance.
Ecology and behaviour
European Wasps are opportunistic scavengers and hunters. Australian sources list carrion, insects, spiders, fruit, human food and garbage among their food sources. [1] Workers are also attracted to meat, sweet food and drinks, which helps explain encounters around picnics, outdoor tables and bins. [2]
A colony is usually founded in spring by a fertilised queen. She produces the first brood, after which workers take over food gathering, nest construction and care of young while the queen concentrates on laying eggs. The nest grows through summer; males and new queens are produced in autumn. [2] [4] In southern Australian conditions, nests commonly decline over winter, but mild winters can allow some colonies to persist and enlarge in a later season. [1] [4]
This is more than an outdoor nuisance. NSW DPIRD says European Wasps can affect beekeeping, forestry and horticulture, and may disrupt native ecosystems by competing for food and disturbing food chains. [3] Tasmania’s biosecurity agency says intense predation has been shown to diminish native insect fauna in some areas. [4]
Safer encounters
The safest response to European Wasp activity is distance. European Wasps can attack when a nest is disturbed, and, unlike honeybees, they can sting more than once. [2] [5] Treat a stream of wasps entering a hole, crack or hidden cavity as a reason to keep people and animals away from that area rather than a reason to investigate.
When wasps are close, avoid sharp movements. Tasmania’s biosecurity guidance says such movements can draw their attention and excite them to sting. [4] Move away without swatting, chasing or attempting to touch the insect. Do not place hands, feet or equipment into a suspected nest location, including a hole at ground level or a cavity around a structure.
During outdoor eating, be especially aware around exposed meat, sweet food and drinks because workers are attracted to them. [2] Look before taking a sip from a drink that has been left outside, and avoid eating beside obvious wasp traffic. These are simple ways to reduce surprise contact; they are not a guarantee that a wasp-free area has been established.
Children should be told that a yellow-and-black insect is not something to catch or challenge. Keep pets away from concentrated activity and do not intervene at a suspected nest.
Wasp stings: appropriate first aid and when to escalate
A bee or wasp sting usually causes immediate sharp pain, then redness, swelling, pain or itch. Most improve within 24 hours. [5] A wasp does not usually leave its sting in the skin and can sting multiple times. [5] Symptoms can be more severe after multiple stings, and a sting can trigger anaphylaxis in some people. [2] [5]
For a suspected wasp sting without signs of a severe allergy, healthdirect advises washing the area with soap and water, then applying an ice pack wrapped in a towel or cloth for 15 minutes. [5] It does not replace medical assessment when the location or symptoms are concerning.
See a doctor straight away for a sting in the mouth, neck or face, or on the eyelid or in the eye. Healthdirect also advises prompt medical review if a child has five or more stings or an adult has 10 or more. [5]
Treat suspected anaphylaxis as an emergency. Healthdirect lists noisy breathing, a swollen tongue or throat, wheeze or persistent cough, voice change, dizziness or collapse as reasons to call triple zero (000) for an ambulance. It also says to call an ambulance for abdominal pain or diarrhoea in the first hour after a sting. [5] If the person has an adrenaline autoinjector, use it immediately, call 000 and follow their ASCIA allergy action plan. [5]
Frequently asked questions
Are European Wasps native to Australia?
No. Vespula germanica is introduced. Australian government and museum sources trace its first Australian record to Tasmania in 1959. [1] [2] [4]
How can I tell a European Wasp from a honeybee or paper wasp?
Look only from a safe distance. A European Wasp is typically bright yellow and black with black triangular markings, yellow legs and black antennae. [1] It can still be confused with honeybees and other wasps, so do not use a close check or the insect’s reaction to confirm an identification. [1] [4]
Are European Wasps found across all of Australia?
Official sources confirm established populations in Tasmania, South Australia, Victoria and New South Wales; Tasmania reports the species statewide. [3] [4] Agriculture Victoria also records historical establishment in Western Australia and isolated southern Queensland nests. [1] Local distribution can change, so this is not a real-time map of every suburb or region.
Why should I avoid a small hole with wasps flying in and out?
European Wasp colonies can be underground or inside cavities, and the Australian Museum says a nest may be visible only as a small entrance hole. [2] European Wasps may attack when a nest is disturbed. [2] [5] Keep clear rather than trying to find out how large the nest is.
When is a wasp sting an emergency?
Call 000 for an ambulance if anaphylaxis is suspected, including breathing difficulty, tongue or throat swelling, persistent cough or wheeze, voice change, dizziness or collapse. [5] Use an available adrenaline autoinjector immediately and follow the person’s ASCIA action plan. [5]
References
- [1] Agriculture Victoria: European wasp
- [2] Australian Museum: European wasp
- [3] NSW Department of Primary Industries and Regional Development: European wasp
- [4] Natural Resources and Environment Tasmania: European and English Wasps
- [5] healthdirect Australia: Bee and wasp stings