Formicoxenus provancheri

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Formicoxenus provancheri
Conservation status
Scientific classification
Kingdom: Animalia
Phylum: Arthropoda
Class: Insecta
Order: Hymenoptera
Family: Formicidae
Subfamily: Myrmicinae
Tribe: Crematogastrini
Genus: Formicoxenus
Species: F. provancheri
Binomial name
Formicoxenus provancheri
(Emery, 1895)



Specimen Label


This species nests under stones, and is a guest in the nests of Myrmica incompleta and Myrmica fracticornis. Apparently it cannot live without its host in the laboratory, although it can be found nesting alone in the field. Sexuals occur in the nests in July and August. (Mackay and Mackay 2002)

At a Glance • Xenobiotic  


This species has several erect hairs on the eyes, and the clypeus of the worker is weakly depressed in the middle and is without a medial carina, although several lateral carinae are present. The scapes have numerous suberect hairs. The propodeal spines are well developed, and thickened throughout. The anterior face of the petiole meets the dorsum in a sharp angle, the posterior face is also straight. The dorsum of the postpetiole is nearly completely free of sculpture. The mesosoma has heavy and dense sculpture, con-sisting of punctures interspersed among poorly defined striae. (Mackay and Mackay 2002)

Keys including this Species


Eastern US south and west to New Mexico.

Distribution based on Regional Taxon Lists

Nearctic Region: Canada (type locality), United States.
Formicoxenus provancheri Distribution.png

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Distribution based on specimens

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The above specimen data are provided by AntWeb. Please see Formicoxenus provancheri for further details







The following information is derived from Barry Bolton's New General Catalogue, a catalogue of the world's ants.

  • provancheri. Leptothorax (Leptothorax) provancheri Emery, 1895c: 320 (w.) CANADA. Francoeur, Loiselle & Buschinger, 1985: 377 (q.m.); Wheeler, G.C. & Wheeler, J. 1973b: 73 (l.); Buschinger, Francoeur & Fischer, 1981: 8 (k.). Combination in L. (Mychothorax): Emery, 1924d: 262; in Formicoxenus: Francoeur, Loiselle & Buschinger, 1985: 377. Senior synonym of emersoni, hirtipilis: Creighton, 1950a: 279; of glacialis: Cole, 1954d: 241. See also: Wheeler, W.M. 1903c: 229. [Mackay, Lowrie, et al. 1988: 89 (in key) and Wheeler, G.C. & Wheeler, J. 1989a: 323, recombine provancheri in Leptothorax, apparently unaware of the revision by Francoeur et al., whose combination is reaffirmed by Bolton, 1995b: 207.]
  • emersoni. Leptothorax emersoni Wheeler, W.M. 1901a: 433, figs. 2, 3 (w.q.m.) U.S.A. Combination in L. (Mychothorax): Emery, 1924d: 261. Junior synonym of provancheri: Creighton, 1950a: 279. See also: Wheeler, W.M. 1903c: 230.
  • glacialis. Leptothorax emersoni subsp. glacialis Wheeler, W.M. 1907b: 71 (w.q.m.) U.S.A. Subspecies of provancheri: Creighton, 1950a: 280. Junior synonym of provancheri: Cole, 1954d: 241.
  • hirtipilis. Leptothorax emersoni subsp. hirtipilis Wheeler, W.M. 1917a: 515 (w.) CANADA. Junior synonym of provancheri: Creighton, 1950a: 279.



  • Cole, A. C., Jr. 1954d. Studies of New Mexico ants. X. The genus Leptothorax (Hymenoptera: Formicidae). J. Tenn. Acad. Sci. 29: 240-241 (page 241, Senior synonym of glacialis)
  • Creighton, W. S. 1950a. The ants of North America. Bull. Mus. Comp. Zool. 104: 1-585 (page 279, Senior synonym of emersoni and hirtipilis)
  • Emery, C. 1895d. Beiträge zur Kenntniss der nordamerikanischen Ameisenfauna. (Schluss). Zool. Jahrb. Abt. Syst. Geogr. Biol. Tiere 8: 257-360 (page 320, worker described)
  • Emery, C. 1922c. Hymenoptera. Fam. Formicidae. Subfam. Myrmicinae. [part]. Genera Insectorum 174B: 95-206 (page 262, Combination in L. (Mycothorax))
  • Francoeur, A.; Loiselle, R.; Buschinger, A. 1984. Taxonomic revision of the ant genus Formicoxenus (Formicidae, Hymenoptera). [Abstract.] P. 528 in: XVII International Congress of Entomology. Hamburg, Federal Republic of Germany, August 20-26, 1984. Abst (page 528, new combination in Formicoxenus)
  • MacKay, W. P.; Lowrie, D.; Fisher, A.; MacKay, E. E.; Barnes, F.; Lowrie, D. 1988. The ants of Los Alamos County, New Mexico (Hymenoptera: Formicidae). Pp. 79-131 in: Trager, J. C. (ed.) Advances in myrmecology. Leiden: E. J. Brill, xxvii + 551 pp. (page 89, see also)
  • Mackay, W. P. and E. Mackay. 2002. The ants of New Mexico (Hymenoptera: Formicidae). Edwin Mellen Press, Lewiston, NY.
  • Wheeler, G. C.; Wheeler, J. 1973b. Ant larvae of four tribes: second supplement (Hymenoptera: Formicidae: Myrmicinae). Psyche (Camb.) 80: 70-82 (page 73, larva described)
  • Wheeler, G. C.; Wheeler, J. 1989a [1988]. Notes on ant larvae: Myrmicinae. Trans. Am. Entomol. Soc. 114: 319-327 (page 323, see also)
  • Wheeler, W. M. 1903d. A revision of the North American ants of the genus Leptothorax Mayr. Proc. Acad. Nat. Sci. Phila. 55: 215-260 (page 229, see also)