Middle Bear Picnic Area
Pima County, Arizona
Coordinates: 32.373421, -110.691918
Elevation: 5,863 ft
July 11, 2021
Size: 3.5 mm
Attracted to mercury vapor and ultraviolet lights
Determined by Salvador Vitanza
Confirmed by Vassili Belov
FAMILY DYTISCIDAE (Predaceous Diving Beetles)