Acanthostichus
Canoa Ranch Rest Area (southbound) Hwy 19
Santa Cruz County, Arizona
Coordinates: 31.771392, -111.033978
September 22, 2018
Size: 4 mm
Attracted to mercury vapor and ultraviolet lights
Determined by Steven Wang who said: “This is a male of the rarely seen subterranean army ant Acanthostichus. Workers are nomadic and at least a few species seem to be termite predators.”