• [Unresolved junior primary homonym of Pseudomyrmex gracilis Fabricius, 1804 (Bolton, 1995b: 400).]
• Status as species: Cresson, 1887: 256; Dalla Torre, 1893: 199.
• Junior synonym of Tapinoma sessile: Emery, 1895d: 337; Wheeler, 1902g: 20; Emery, 1913a: 40; Creighton, 1950a: 353; Smith, 1951c: 838; Smith, 1979: 1421; Snelling & George, 1979: 160; Shattuck, 1994: 153; Bolton, 1995b: 400; Hamm, 2010: 21.

Obsolete combinations

• Formica gracilis

Citations

• Bolton, B. 1995b. A new general catalogue of the ants of the world. Cambridge, Mass.: Harvard University Press, 504 pp.
• Buckley, S. B. 1866. Descriptions of new species of North American Formicidae. Proceedings of the Entomological Society of Philadelphia 6:152-172. PDF
• Creighton, W. S. 1950a. The ants of North America. Bulletin of the Museum of Comparative Zoology 104:1-585. PDF
• Cresson, E. T. Sr. 1887. Synopsis of the families and genera of the Hymenoptera of America, north of Mexico, together with a catalogue of the described species, and bibliography. Transactions of the American Entomological Society, Suppl. Vol. 1887:1-351. PDF
• Dalla Torre, K. W. 1893. Catalogus Hymenopterorum hucusque descriptorum systematicus et synonymicus. Vol. 7. Formicidae (Heterogyna). Leipzig: W. Engelmann, 289 pp. PDF
• Emery, C. 1895d. Beiträge zur Kenntniss der nordamerikanischen Ameisenfauna. (Schluss). Zoologische Jahrbücher. Abteilung für Systematik, Geographie und Biologie der Tiere 8:257-360. PDF
• Emery, C. 1913a ("1912"). Hymenoptera. Fam. Formicidae. Subfam. Dolichoderinae. Genera Insectorum 137:1-50. PDF
• Hamm, C. A. 2010. Multivariate discrimination and description of a new species of Tapinoma from the western United States. Annals of the Entomological Society of America 103:20-29. PDF
• Shattuck, S. O. 1994. Taxonomic catalog of the ant subfamilies Aneuretinae and Dolichoderinae (Hymenoptera: Formicidae). University of California Publications in Entomology 112:i-xix, 1-241. PDF
• Smith, D. R. 1979. Superfamily Formicoidea. Pp. 1323-1467 in: Krombein, K. V.; Hurd, P. D.; Smith, D. R.; Burks, B. D. (eds.) 1979. Catalog of Hymenoptera in America north of Mexico. Volume 2. Apocrita (Aculeata). Washington, D.C.: Smithsonian Institution Press, pp. i-xvi, 1199-2209.
• Smith, M. R. 1951c. Family Formicidae. Pp. 778-875 in: Muesebeck, C. F. W.; Krombein, K. V.; Townes, H. K. (eds.) 1951. Hymenoptera of America north of Mexico. Synoptic catalogue. United States Department of Agriculture. Agriculture Monograph 2:1-1420. PDF
• Snelling, R. R.; George, C. D. 1979. The taxonomy, distribution and ecology of California desert ants. Report to California Desert Plan Program, Bureau of Land Management. Riverside: U.S. Dept. Interior, 335 + 89 pp.
• Wheeler, W. M. 1902g. A consideration of S. B. Buckley's "North American Formicidae.". Transactions of the Texas Academy of Sciences 4:17-31. PDF