Pheidole californica valid U.S.A. (California). Nearctic.
Mayr, G. 1870b. Neue Formiciden. Verhandlungen der Kaiserlich-Königlichen Zoologisch-Botanischen Gesellschaft in Wien 20:939-996.   127229

Pheidole californica hagermani synonym of Pheidole californica U.S.A. (Idaho). Nearctic.
Cole, A. C., Jr. 1936a. An annotated list of the ants of Idaho (Hymenoptera: Formicidae). Canadian Entomologist 68:34-39.   123685

Pheidole californica incenata synonym of Pheidole californica 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

Pheidole californica micula obsolete combination U.S.A. (Arizona). 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

Pheidole californica nevadensis homonym replaced by Pheidole californica pyramidensis U.S.A. (Nevada). 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

Pheidole californica pyramidensis synonym of Pheidole californica
Emery, C. 1922c. Hymenoptera. Fam. Formicidae. Subfam. Myrmicinae. [part]. Genera Insectorum 174B:95-206.   124756

Pheidole californica satura synonym of Pheidole californica 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

Pheidole californica shoshoni synonym of Pheidole californica U.S.A. (Idaho). Nearctic.
Cole, A. C., Jr. 1933b. Descriptions of two new ants of the genus Pheidole (Hymenoptera: Formicidae). Annals of the Entomological Society of America 26:616-618.   123680