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 fracticornis and Myrmica incompleta. 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.

Distribution based on AntMaps


Distribution based on AntWeb specimens

Check data from AntWeb







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.



  • n = 11, 2n = 22 (Canada) (Buschinger et al., 1980; Fischer, 1987) (as Leptothorax provancheri).