Formica criniventris

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Formica criniventris
Scientific classification
Kingdom: Animalia
Phylum: Arthropoda
Class: Insecta
Order: Hymenoptera
Family: Formicidae
Subfamily: Formicinae
Tribe: Formicini
Genus: Formica
Species group: rufa
Species: F. criniventris
Binomial name
Formica criniventris
Wheeler, W.M., 1912

Formica criniventris casent0104874 profile 1.jpg

Formica criniventris casent0104874 dorsal 1.jpg

Specimen labels


These ants usually nest under stones and build thatched nests around the stone. It may enslave Formica argentea or Formica neoclara.


This is an attractive, bicolored ant (head and mesosoma red, gaster black), in which the mid and hind tibiae normally have only 1 or 2 erect or suberect hairs, located near the apices of the tibiae. The scapes are without erect hairs (except at the apex). The clypeal fossa is shallow and the surface of the clypeus is broadly convex. The suberect hairs on the gaster are widely scattered and sparse. (Mackay and Mackay 2002)

Keys including this Species


United States: Montana and North Dakota, south Colorado and New Mexico.

Distribution based on Regional Taxon Lists

Nearctic Region: United States (type locality).

Distribution based on AntMaps


Distribution based on AntWeb specimens

Check data from AntWeb


Forested areas, open meadows.




The following information is derived from Barry Bolton's Online Catalogue of the Ants of the World.

  • crinita. Formica crinita Wheeler, W.M. 1909e: 87 (w.q.) U.S.A. [Junior primary homonym of crinita Smith, F. 1858b: 13, above.] Replacement name: criniventris Wheeler, W.M. 1912c: 90. [Formica crinita Wheeler, W.M. 1908g: 408. Nomen nudum.]
  • criniventris. Formica criniventris Wheeler, W.M. 1912c: 90. Replacement name for crinita Wheeler, W.M., above. [Junior primary homonym of crinita Smith, F. 1858b: 13.]



  • Mackay, W. P. and E. Mackay. 2002. The ants of New Mexico (Hymenoptera: Formicidae). Edwin Mellen Press, Lewiston, NY.
  • Smith, F. 1858a. Catalogue of hymenopterous insects in the collection of the British Museum. Part VI. Formicidae. London: British Museum, 216 pp. (page 13, junior primary homonym of crinita)
  • Wheeler, W. M. 1912c. New names for some ants of the genus Formica. Psyche (Camb.) 19: 90 (page 90, replacement name for crinita)

References based on Global Ant Biodiversity Informatics

  • Allred D. M. 1982. Ants of Utah. The Great Basin Naturalist 42: 415-511.
  • Allred, D.M. 1982. The ants of Utah. Great Basin Naturalist 42:415-511.
  • Beck D. E., D. M. Allred, W. J. Despain. 1967. Predaceous-scavenger ants in Utah. Great Basin Naturalist 27: 67-78
  • Borchert, H.F. and N.L. Anderson. 1973. The Ants of the Bearpaw Mountains of Montana (Hymenoptera: Formicidae). Journal of the Kansas Entomological Society 46(2):200-224
  • Gregg, R.T. 1963. The Ants of Colorado.
  • Lavigne R., and T. J. Tepedino. 1976. Checklist of the insects in Wyoming. I. Hymenoptera. Agric. Exp. Sta., Univ. Wyoming Res. J. 106: 24-26.
  • Mackay W. P., and E. E. Mackay. 2002. The ants of New Mexico (Hymenoptera: Formicidae). Lewiston, New York: Edwin Mellen Press, 400 pp.
  • Mackay, W., and E. Mackay. The ants of New Mexico. The Edwin Mellen Press, 2002.
  • Mackay, W.P. and E. Mackay. XXXX. The Ants of New Mexico
  • Shattuck S. O. 1985. Illustrated key to ants associated with western spruce budworm. United States Department of Agriculture. Agriculture Handbook 632: 1-36.
  • Trager J. Distributions of Nearctic Formica rufa group species. Personal communication 05 February 2014.
  • Wheeler G. C., and E. W. Wheeler. 1944. Ants of North Dakota. North Dakota Historical Quarterly 11:231-271.
  • Wheeler G. C., and J. Wheeler. 1987. A Checklist of the Ants of South Dakota. Prairie Nat. 19(3): 199-208.
  • Wheeler W. M. 1913. A revision of the ants of the genus Formica (Linné) Mayr. Bulletin of the Museum of Comparative Zoology 53: 379-565.
  • Wheeler, G.C. and J. Wheeler. 1988. A checklist of the ants of Montana. Psyche 95:101-114
  • Wheeler, G.C. and J. Wheeler. 1988. A checklist of the ants of Wyoming. Insecta Mundi 2(3&4):230-239
  • Yensen, N.P., W.H. Clark and A. Francoeur. 1977. A checklist of Idaho Ants. The Pan-Pacific Entomologist 53:181-187