• Francoeur et al., 1985: 377 (q.m.); Wheeler & Wheeler, 1973b: 73 (l.); Buschinger et al., 1981: 8 (k.)
• Combination in Leptothorax (Mychothorax): Emery, 1924f: 262.
• Combination in Leptothorax: MacKay et al., 1988: 90; Wheeler & Wheeler, 1989a: 323.
• Combination in Formicoxenus: Francoeur et al., 1985: 377; Bolton, 1995b: 207.
• Status as species: Wheeler, 1903d: 229; Wheeler, 1910a: 566; Donisthorpe, 1915f: 83 (referred to Formicoxenus nitidulus); Emery, 1924f: 262; Creighton, 1950a: 279; Smith, 1951c: 822; Cole, 1954d: 241; Smith, 1958c: 134; Smith, 1967a: 360; Francoeur, 1977b: 207; Smith, 1979: 1398; Buschinger, 1981: 213; Buschinger et al., 1981: 1; Francoeur et al., 1985: 377 (redescription); Wheeler & Wheeler, 1986g: 51 (in key); MacKay et al., 1988: 90; Wheeler et al., 1994: 302; Bolton, 1995b: 207; Mackay & Mackay, 2002: 104; Coovert, 2005: 80; Ellison et al., 2012: 241.
• Senior synonym of Formicoxenus emersoni: Creighton, 1950a: 279; Smith, 1958c: 134; Smith, 1979: 1398; Francoeur et al., 1985: 377; Bolton, 1995b: 207; Coovert, 2005: 80.
• Senior synonym of Formicoxenus provancheri glacialis: Cole, 1954d: 241 (in text); Smith, 1958c: 134; Smith, 1979: 1398; Francoeur et al., 1985: 377; Bolton, 1995b: 207.
• Senior synonym of Formicoxenus emersoni hirtipilis: Creighton, 1950a: 279; Smith, 1958c: 134; Smith, 1979: 1398; Francoeur et al., 1985: 377; Bolton, 1995b: 207.

Junior synonyms

• Formicoxenus emersoni (Wheeler, 1901)
  Obsolete combination(s): Leptothorax emersoni
• Formicoxenus emersoni hirtipilis (Wheeler, 1917)
  Obsolete combination(s): Leptothorax emersoni hirtipilis
• Formicoxenus provancheri glacialis (Wheeler, 1907)
  Obsolete combination(s): Formicoxenus emersoni glacialis, Leptothorax emersoni glacialis

Obsolete combinations

• Leptothorax provancheri

Citations

• Bolton, B. 1995b. A new general catalogue of the ants of the world. Cambridge, Mass.: Harvard University Press, 504 pp.
• Buschinger, A. 1981. Biological and systematic relationships of social parasitic Leptothoracini from Europe and North America. Pp. 211-222 in: Howse, P. E.; Clement, J.-L. (eds.) 1981. Biosystematics of social insects. Systematics Association Special Volume No. 19. London: Academic Press, 346 pp. PDF
• Buschinger, A.; Francoeur, A.; Fischer, K. 1981 ("1980"). Functional monogyny, sexual behavior, and karyotype of the guest ant, Leptothorax provancheri Emery (Hymenoptera, Formicidae). Psyche (Cambridge) 87:1-12. PDF
• Cole, A. C., Jr. 1954d. Studies of New Mexico ants. X. The genus Leptothorax (Hymenoptera: Formicidae). Journal of the Tennessee Academy of Science 29:240-241. PDF
• Coovert, G. A. 2005. The ants of Ohio. Bulletin of the Ohio Biological Survey (New Series) 15 (2):1-196. PDF
• Creighton, W. S. 1950a. The ants of North America. Bulletin of the Museum of Comparative Zoology 104:1-585. PDF
• Donisthorpe, H. 1915f. British ants, their life-history and classification. Plymouth: Brendon & Son Ltd., xv + 379 pp. PDF
• Ellison, A. M.; Gotelli, N. J.; Farnsworth, E. J.; Alpert, G. D. 2012. A field guide to the ants of New England. New Haven: Yale University Press, xv + 398 pp.
• 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. 1924f ("1922"). Hymenoptera. Fam. Formicidae. Subfam. Myrmicinae. [concl.]. Genera Insectorum 174C:207-397. PDF
• Francoeur, A. 1977b. Synopsis taxonomique et économique des fourmis du Québec (Formicidae, Hymenoptera). Annales de la Société Entomologique du Québec 22:205-212. PDF
• Francoeur, A.; Loiselle, R.; Buschinger, A. 1985. Biosystématique de la tribu Leptothoracini (Formicidae, Hymenoptera). 1. Le genre Formicoxenus dans la région holarctique. Naturaliste Canadien (Québec) 112:343-403. PDF
• MacKay, W. P.; Lowrie, D.; Fisher, A.; MacKay, E. E.; Barnes, F. 1988. The ants of Los Alamos County, New Mexico (Hymenoptera: Formicidae). Pp. 79-131 in: Trager, J. C. (ed.) 1988. Advances in myrmecology. Leiden: E. J. Brill, xxvii + 551 pp. PDF
• Mackay, W.; Mackay, E. 2002. The ants of New Mexico (Hymenoptera: Formicidae). Lewiston, New York: Edwin Mellen Press, 400 pp. 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
• Smith, M. R. 1958c. Family Formicidae. Pp. 108-162 in: Krombein, K. V. (ed.) 1958. Hymenoptera of America north of Mexico. Synoptic catalogue. First supplement. United States Department of Agriculture. Agriculture Monograph 2(suppl. 1):1-305. PDF
• Smith, M. R. 1967a. Family Formicidae. Pp. 343-374 in: Krombein, K. V.; Burks, B. D. (eds.) 1967. Hymenoptera of America north of Mexico. Synoptic catalog. Second supplement. United States Department of Agriculture. Agriculture Monograph 2(suppl. 2):1-584. PDF
• Wheeler, G. C.; Wheeler, J. 1973b. Ant larvae of four tribes: second supplement (Hymenoptera: Formicidae: Myrmicinae). Psyche (Cambridge) 80:70-82. PDF
• Wheeler, G. C.; Wheeler, J. 1986g. The ants of Nevada. Los Angeles: Natural History Museum of Los Angeles County, vii + 138 pp. PDF
• Wheeler, G. C.; Wheeler, J. 1989a ("1988"). Notes on ant larvae: Myrmicinae. Transactions of the American Entomological Society 114:319-327. PDF
• Wheeler, G. C.; Wheeler, J.; Kannowski, P. B. 1994. Checklist of ants of Michigan (Hymenoptera: Formicidae). Great Lakes Entomologist 26:297-310. PDF
• Wheeler, W. M. 1903d. A revision of the North American ants of the genus Leptothorax Mayr. Proceedings of the Academy of Natural Sciences of Philadelphia 55:215-260. PDF
• Wheeler, W. M. 1910a. Ants: their structure, development and behavior. New York: Columbia University Press, xxv + 663 pp. PDF