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

Crematogaster laeviuscula californica obsolete combination U.S.A. (California). Nearctic.
Wheeler, W. M. 1919h. A new paper-making Crematogaster from the southeastern United States. Psyche (Cambridge) 26:107-112.   130138