With so much attention focused on the economically important Wasmannia auropunctata, it is easy to forget the genus contains several less publicized and less common species. This photograph shows a nest of Wasmannia sulcaticeps in the Brazilian cerrado.

Carrancas, Minas Gerais, Brazil
Wasmannia auropunctata, the little fire ant.

Orlando, Florida, USA
Wasmannia auropunctata workers feeding on a cookie crumb set out as bait by researchers in Buenos Aires.  Shortbread cookies make good baits for myrmicine ants.

Buenos Aires, Argentina
Wasmannia auropunctata, the little fire ant, is one of the world's worst pest ants.

Gamboa, Panama
Friend or foe?  Two Wasmannia auropunctata meet on a foraging trail and briefly assess each other. Ants from different colonies will attack each other, but these two are nestmates and let each other pass.

Gamboa, Panama
Wasmannia auropunctata

Gamboa, Panama
Queen ants are the fertile females in the nest specialized for reproduction.  In some ant species, such as the little fire ant Wasmannia auropunctata, queens are much larger than the sterile workers.

Gamboa, Panama
Friend or foe?  Two Wasmannia auropunctata meet on a foraging trail and briefly assess each other. Ants from different colonies will attack each other, but these two are nestmates and let each other pass.

Gamboa, Panama
Wasmannia auropunctata

Gamboa, Panama
Wasmannia auropunctata, the little fire ant, is one of the world's worst pest ants.

Gamboa, Panama
Wasmannia auropunctata, the little fire ant, is one of the world's worst pest ants.

Gamboa, Panama
Wasmannia auropunctata, the little fire ant, is one of the world's worst pest ants.

Gamboa, Panama
See photo in original gallery.
all images and text © Alex Wild 2001-2013