● Duval Mine Rd, Sahuarita [Pima Co], AZ USA [el. 882 m / 2893 ft] view location in Google Maps » ● 11/06/10 8:14AM sunny, air temp: 18°C / 64°F As part of a large foraging column, these M. pergandei workers are retrieving plant parts and carrying them back to the nest. - Pogolumina - Pogonomyrmex Harvester Ants of North America