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Pheidole obscurithorax is a South American native that has been introduced to the U.S. gulf coast. Pensacola, Florida, USA
Pheidole obscurithorax Pensacola, Florida, USA
Pheidole megacephala, the big-headed ant, is one of the world's most damaging invasive ant species. Durban, South Africa
A trail of Pheidole rhea, North America's largest Pheidole species. Tucson, Arizona, USA
A trail of Pheidole rhea, North America's largest Pheidole species. Tucson, Arizona, USA
A soldier Eciton burchellii army ant. The ice-tong shaped mandibles defend the colony against vertebrate predators. Captive colony at the California Academy of Sciences
A trail of Pheidole rhea, North America's largest Pheidole species. Tucson, Arizona, USA
The long, sharp jaws of this Pheidole obscurithorax soldier indicate a predominately predatory species. Pensacola, Florida, USA
Pheidole megacephala, the big-headed ant, is one of the world's most damaging invasive ant species. Durban, South Africa
A soldier Eciton burchellii army ant. The ice-tong shaped mandibles defend the colony against vertebrate predators.

Captive colony at the California Academy of Sciences
A soldier Eciton burchellii army ant. The ice-tong shaped mandibles defend the colony against vertebrate predators. Captive colony at the California Academy of Sciences
A soldier Eciton burchellii army ant. The ice-tong shaped mandibles defend the colony against vertebrate predators.

Captive colony at the California Academy of Sciences
See photo in original gallery.
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all images and text © Alex Wild 2001-2013