Thesium
Upper Thumb Rock Picnic Area
Pena Blanca Lake, Santa Cruz County, Arizona
Coordinates: 31.399708, -111.088079
Elevation: 3,842 ft
February 20, 2023
Size: 1.3 mm
Found by sifting leaf litter, and extracting the arthropods using a Berlese funnel
Determined by Donald S. Chandler