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Pheidole metallescens, minor and major workers. Major workers of some species of Pheidole are repletes, storing large amounts of liquid food in their social stomachs. Gainesville, Florida, USA
Pheidole tepicana Arizona, USA
The Florida harvester ant Pogonomyrmex badius is the only North American pogo found east of the Mississippi, and the only species that is polymorphic in the worker caste. The individual on the right is a major worker whose enlarged head holds muscles useful for milling seeds. Archbold Biological Station, Florida, USA
Pheidole tepicana supermajor. The massive head of this granivorous ant holds muscles for milling seeds. Arizona, USA
Dorylus helvolus St. Lucia, KZN, South Africa
Dorylus helvolus is a polymorphic species, having worker ants of varying sizes that specialize on different tasks. St. Lucia, KZN, South Africa
Dorylus helvolus, soldier. This widespread African species is blind and largely subterranean. St. Lucia, KZN, South Africa
The Florida harvester ant Pogonomyrmex badius is the only North American pogo found east of the Mississippi, and the only species that is polymorphic in the worker caste. The individual on the right is a major worker whose enlarged head holds muscles useful for milling seeds. Archbold Biological Station, Florida, USA
Pheidole tepicana Arizona, USA
The Florida harvester ant Pogonomyrmex badius is the only North American pogo found east of the Mississippi, and the only species that is polymorphic in the worker caste. The individual on the right is a major worker whose enlarged head holds muscles useful for milling seeds.

Archbold Biological Station, Florida, USA
The Florida harvester ant Pogonomyrmex badius is the only North American pogo found east of the Mississippi, and the only species that is polymorphic in the worker caste. The individual on the right is a major worker whose enlarged head holds muscles useful for milling seeds. Archbold Biological Station, Florida, USA
The Florida harvester ant Pogonomyrmex badius is the only North American pogo found east of the Mississippi, and the only species that is polymorphic in the worker caste. The individual on the right is a major worker whose enlarged head holds muscles useful for milling seeds.

Archbold Biological Station, Florida, USA
See photo in original gallery.
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all images and text © Alex Wild 2001-2013