Proto Canyon, Santa Cruz County, Arizona
Coordinates: 31.386736, -110.875002
Elevation: 3,619 ft
April 19, 2020
Size: 11 mm
Found on Argemone platyceras (white prickly poppy). Almost every plant, that I checked, had more than one beetle.
Determined by Salvador Vitanza
FAMILY EROTYLIDAE (Pleasing Fungus Beetles)