Acromyrmex versicolor
Cabeza Prieta National Wildlife Refuge
Yuma County, Arizona
Coordinates: 32.099369, -113.477883
Elevation: 736 ft
March 7, 2020
At approximately 9:00 PM, Dr. Andrew Johnston showed me the entrance of an active ant nest that had a few workers moving slowly; probably due to the low temperatures. I took a few specimens for photos. The nest was close to our campground near “El Camino de Diablo” dirt road
Determined by Salvador Vitanza
Confirmed by Steven Wang