Pogonomyrmex rugosus

Pogonomyrmex rugosus

Common name: Rough Harvester Ant, Desert Harvester Ant
Genus: Pogonomyrmex
Origin & Distribution: Southwestern United States (e.g. New Mexico, Colorado, Arizona, Texas) and northern Mexico 

Morphometrics & Colony Structure

• Queen size: ~10 – 12 mm 

• Worker size: ~5 – 7 mm (note: starting colonies may have smaller workers) 

• Colony size: Up to ~10,000–15,000 workers in mature colonies