Pheidole hyatti valid U.S.A. (California). Nearctic.
Emery, C. 1895d. Beiträge zur Kenntniss der nordamerikanischen Ameisenfauna. (Schluss). Zoologische Jahrbücher. Abteilung für Systematik, Geographie und Biologie der Tiere 8:257-360.   124591

Pheidole hyatti ecitonodora synonym of Pheidole hyatti U.S.A. (Texas, New Mexico, Colorado). Nearctic.
Wheeler, W. M. 1908h. The ants of Texas, New Mexico and Arizona. (Part I.). Bulletin of the American Museum of Natural History 24:399-485.   130031

Pheidole hyatti solitanea synonym of Pheidole hyatti U.S.A. (California). Nearctic.
Wheeler, W. M. 1915b. Some additions to the North American ant-fauna. Bulletin of the American Museum of Natural History 34:389-421.   130089