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
Ruler in 1/10 mm
Determined by Salvador Vitanza
Confirmed by James C. Trager