Pheidole dentigula major worker.

Gainesville, Florida, USA
Pheidole metallescens major worker.

Gainesville, Florida, USA
Pheidole metallescens major worker.

Gainesville, Florida, USA
Major workers of the South American species Pheidole aberrans have an unusually large head even for a Pheidole.

Bento Gonçalves, Rio Grande do Sul, Brazil
Pheidole aberrans, major and minor workers.

Bento Gonçalves, Rio Grande do Sul, Brazil
Pheidole aberrans, major and minor workers.

Bento Gonçalves, Rio Grande do Sul, Brazil
Major workers of the South American species Pheidole aberrans have an unusually large head even for a Pheidole.

Bento Gonçalves, Rio Grande do Sul, Brazil
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
See photo in original gallery.
all images and text © Alex Wild 2001-2013