Tom Van Devender, Ana Lilia Reina-Guerrero, Mario Cirett-Galan, Nora Villanueva, John Palting, Arelhi Ballesteros
Mexico, Sonora, Nácori Chico, La Presita, near Arroyo La Cueva; SE of junction of Carr. Nacori Chico–Mesa Tres Rios and Carr. Mesa Tres Rios–El Largo; 3.6 km S and 0.5 km W (by air) of Mesa Tres Rios pueblo.