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 trail of Pheidole rhea, North America's largest Pheidole species.

Tucson, Arizona, USA
Minor and supermajor workers of Pheidole rhea, North America's largest Pheidole.  This species is a desert seed-harvesting ant.

Portal, Arizona, USA
Minor and supermajor workers of Pheidole rhea, North America's largest Pheidole. This species is a desert seed-harvesting ant.

Portal, Arizona, USA
Minor and supermajor workers of Pheidole rhea, North America's largest Pheidole.  This species is a desert seed-harvesting ant.

Portal, Arizona, USA
Minor and supermajor workers of Pheidole rhea, North America's largest Pheidole. This species is a desert seed-harvesting ant.

Portal, Arizona, USA
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all images and text © Alex Wild 2001-2013