Tropical fire ants
Solenopsis geminata
Tropical fire ants
Origin/Description
Native of USA and South America. Orange brown body, 3 to 6mm long. Very similar in appearance to red imported fire ants.
Environment
Tropical fire ants are most prevalent in open, sunny areas, including barren land and grassland. They can occur in partially shaded areas and build nests in mounds of fine soil clumps of vegetation or under objects. Mounds may not always be obvious. They may also nest around household heat sources such as pipes or fireplaces. Overseas, tropical fire ants present a major conservation threat as they invade native communities affecting many of the animals and plants in that community.
Behaviour
If a colony is disturbed, numerous tropical fire ants swarm out to defend the nest and sting anything nearby.
Sting
The tropical fire ant takes its name from the fiery pain caused by their sting which may cause intense burning and itching. Simple first aid measures include elevating the affected extremity, and applying ice or a cool compress for 15 to 20 minutes. Oral antihistamines may help reduce itching. People previously stung by these ants may develop a red, itchy rash, feel faint or experience difficulty breathing, seek medical attention immediately.
If you see tropical fire ants call Biosecurity New Zealand on 0800 80 99 66
Fact Sheet
- Invasive Ants Fact Sheet
(220 KB)
Risk Assessment
- Tropical fire ant risk assessment (1302 KB)
Page last updated: 22 October 2008