Mastigoproctus - Mastigoproctus tohono
Chiricahua National Monument, Cochise County, Arizona, USA
September 25, 2021
Size: ~50 mm TL
Found in the restroom at Bonita Canyon Campground. Measurement was from front of face to end of abdomen. Except for possibly range, I cannot see a way to differentiate between giganteus and tohono.