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Genus: Formicoxenus   Mayr, 1855 


Current Valid Name:

Taxonomic History (provided by Barry Bolton, 2022)

Extant: 7 valid species

Formicoxenus Mayr, 1855 PDF: 413. Type-species: Myrmica nitidula, by monotypy. AntCat AntWiki

Taxonomic history

Formicoxenus in Myrmicinae, Leptothoracini: Emery, 1914e PDF: 42; Forel, 1917 PDF: 245; Wheeler, 1922: 664; Emery, 1924f PDF: 264; all subsequent authors except the following.
Formicoxenus as junior synonym of Leptothorax: Brown, 1973b PDF: 180 [provisional].
Formicoxenus as genus: Emery, 1882a: 273; all subsequent authors except the above; Francoeur et al., 1985 PDF: 343.
Genus Formicoxenus references
Emery, 1882a: 273 (Europe & Algeria species); Dalla Torre, 1893 PDF: 62 (catalogue); Emery, 1924f PDF: 263 (Symmyrmica diagnosis, catalogue); Emery, 1924f PDF: 264 (diagnosis, catalogue); Bernard, 1967a PDF: 225 (diagnosis); Smith, 1979: 1398 (Symmyrmica catalogue); Francoeur et al., 1985 PDF: 374 (diagnosis, all species revision, key); Kupyanskaya, 1990a: 148 (Far Eastern Russia species key); Radchenko, 1994b: 111 (South Siberia species key); Bolton, 1995a PDF: 1049 (census); Bolton, 1995b: 206 (catalogue); Mackay & Mackay, 2002 PDF: 91 (U.S.A., New Mexico species key).

Taxon Page Images:

Formicoxenus diversipilosus male. This species in unusual in the extent to which males resemble the workers. Sagehen Creek, California, USA.
Image © Alex Wild. // Distribution


  Geographic regions (According to curated Geolocale/Taxon lists):
    Americas: Canada, United States
    Asia: Turkey
    Europe: Austria, Belarus, Belgium, Bulgaria, Croatia, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Italy, Latvia, Lithuania, Luxembourg, Moldova, Netherlands, Norway, Poland, Romania, Russia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Ukraine, United Kingdom
  Biogeographic regions (According to curated Bioregion/Taxon lists):
    Nearctic, Palearctic
  Native biogeographic regions (according to species list records):
    Nearctic, Palearctic

Taxonomic Treatment (provided by Plazi)

Scientific Name Status Publication Pages ModsID GoogleMaps
Formicoxenus   Collingwood, C. A., 1979, The Formicidae (Hymenoptera) of Fennoscandia and Denmark., Fauna Entomologica Scandinavica 8, pp. 1-174: 77, (download) 77 6175
Formicoxenus   Ward, P. S., 2005, A synoptic review of the ants of California (Hymenoptera: Formicidae)., Zootaxa 936, pp. 1-68: 32, (download) 32 21008

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