PestHelp Guide

Fire Ant

Common in Argentina, South America

Illustration of Fire Ant

About Fire Ant

Red imported fire ants (Solenopsis invicta) are 1.6–5 mm aggressive stinging ants native to South America, introduced to the United States through the port of Mobile, Alabama in the 1930s. They build diffuse dome-shaped mounds in open sunny areas and will swarm and sting repeatedly when disturbed, injecting venom that produces a characteristic burning sensation and fluid-filled pustule at each sting site. They are omnivores that prey on ground-nesting wildlife, displace native ant species, and short-circuit electrical equipment. An estimated 14 million Americans are stung annually, with over 100 confirmed fatalities from anaphylactic reactions.

Geographic Distribution

This insect is found across South America, with notable populations in Argentina and surrounding regions.

Management

If you suspect a Fire Ant problem, consult our recommended exterminator services or browse our full pest species database for related species and control guidance.