Fire Ant Nomenclature and Terminology

What’s in a Name?  Fire Ants or Imported Fire Ants?

Common and Scientific Names

red imported fire ant (Solenopsis invicta) Did you know that when you say “fire ants” you could be referring to any one of over 20 different species of fire ants? For most …

Imported Fire Ants: What Are Fire Ants?

Imported fire ant, Solenopsis invicta Buren.  Photo courtesy of University of Florida.

Imported fire ants are ant species in the genus Solenopsis that can cause serious medical, economic and ecologic problems. They are called imported fire ants because they are not native to the United States.  They were accidentally introduced from South …

Identifying Fire Ants


What do fire ants look like?  How can I tell them apart from other ants?

In the United States, imported fire ants currently inhabit all or parts of Alabama, Arkansas, California, Florida, Georgia, Louisiana, Missouri, Mississippi, New Mexico, North Carolina, …

Imported Fire Ant History

History of Control Efforts

Map of imported fire ant quarantine areas, including areas infested by hybrid fire ants.  Photo by USDA.
Map of imported fire ant quarantine areas, including areas infested by hybrid fire ants. Photo by USDA.


More than 75 years ago, the red imported fire ant, Solenopsis invicta Buren, was accidentally brought into Mobile, Alabama, …