A harvester ant (Pogonomyrmex desertorum) wanders too close to a nest of little Forelius ants, who harrass the intruder until she leaves. Tucson, Arizona, USA
Pogonomyrmex rugosus, harvester ant worker cutting grass seeds off the stalk. Tucson, Arizona, USA
The desert sun sets over a nest of Pogonomyrmex barbatus harvester ants. Sycamore Canyon, Arizona, USA
