Brachymyrmex patagonicus
Rio Rico, Santa Cruz County, Arizona
Coordinates: 31.468040, -110.974227
Elevation: 3,453 ft
May 12, 2017
Size: 1.6 mm (to tip of abdomen)
There must have been many thousands of these male ants attracted to the mercury vapor and ultraviolet lights that night
Determined by Salvador Vitanza
Confirmed by James C. Trager