Most single stings cause local pain and swelling — but anaphylaxis can follow even one sting, and one species here (red imported fire ants) is also an active national biosecurity concern.
This page is not a diagnosis
A photo can't tell you whether you're having, or about to have, an allergic reaction. Call 000 immediately for difficulty breathing, facial or throat swelling, dizziness, or widespread hives — regardless of which insect was involved.
Myrmecia species
Large ant with a powerful, painful sting that will defend its nest vigorously if disturbed. Can cause allergic reactions.
Where it may occur
All of Australia. Habitat: Bushland, gardens, lawns, forests.
Do not disturb
Avoid nests. Sting is very painful. Can cause allergic reactions. Seek medical help if severe reaction.
If stung: Bull Ant / European Wasp Sting
What a photo cannot tell you
A photo can help recognise the insect, but it can't confirm how many times you were stung or your personal allergy risk.
Vespula germanica
Invasive wasp. Can sting multiple times and will defend its nest vigorously if disturbed.
Where it may occur
Southern Australia. Habitat: Gardens, walls, roof cavities, underground.
Do not disturb
Avoid nests. Can sting repeatedly. Allergic reactions possible. Report nests to authorities.
If stung: Bull Ant / European Wasp Sting
What a photo cannot tell you
A photo can help recognise the insect, but it can't confirm how many times you were stung or your personal allergy risk.
Solenopsis invicta
Invasive ant that swarms and stings repeatedly when its mound is disturbed. A serious biosecurity concern in Australia — sightings must be reported.
Biosecurity reporting required
This is an invasive species under active national eradication. Report suspected sightings at fireants.org.au rather than treating the nest yourself.
Where it may occur
South-East Queensland (spreading, under biosecurity control). Habitat: Lawns, parks, pastures, disturbed ground in biosecurity control zones.
Do not disturb
Do not disturb mounds. Report suspected sightings to your state biosecurity or agriculture authority rather than treating them yourself.
If stung: Red Imported Fire Ant (RIFA) Sting
What a photo cannot tell you
A photo can help recognise fire ants, but the biosecurity risk comes from the nest and colony, not any single ant — always report what you find rather than relying on a photo ID alone.
Guidance last reviewed: September 2026. Sources: Better Health Channel — Bites and stings first aid, National Fire Ant Eradication Program — Report a sighting. This is general information, not a substitute for professional medical care. In an emergency, always call 000.