Monomorium minimum

Identification
Key to New World Monomorium workers, queens, males

Distribution based on Regional Taxon Lists
Nearctic Region: Canada, United States. Neotropical Region: Mexico, Paraguay, Saint Lucia.

Habitat
Essentially all habitats, ranging from arid grasslands and shrubs to pinyon-juniper forests to ponderosa pine-riparian sites. It is found most often in open areas. (Mackay and Mackay 2002)

Castes

 * Worker

Nomenclature

 * atra. Myrmica (Monomorium) atra Buckley, 1867: 342 (q.) U.S.A. Junior synonym of minimum: Emery, 1895c: 274.
 *  minimum. Myrmica (Monomorium) minima Buckley, 1867: 338 (w.q.) U.S.A. Emery, 1895c: 274 (m.); Wheeler, G.C. & Wheeler, J. 1955c: 122 (l.); Crozier, 1970: 116 (k.). Combination in Monomorium: Emery, 1895c: 274. Subspecies of minutum: Emery, 1895c: 274; Wheeler, W.M. 1904e: 301; Wheeler, W.M. 1906b: 2. Revived status as species: Wheeler, W.M. 1910g: 562; Wheeler, W.M. 1913c: 115; Wheeler, W.M. 1914b: 42; Dennis, 1938: 279. Senior synonym of atra: Emery, 1895c: 274; of metoecus: Brown, in Ettershank, 1966: 90. See also: Wheeler, G.C. & Wheeler, J. 1973a: 30; DuBois, 1986: 76.
 * metoecus. Monomorium metoecus Brown & Wilson, 1957b: 239, fig. 1 (q.) U.S.A. Wilson & Brown, 1958: 33 (w.). Junior synonym of minimum: Brown, in Ettershank, 1966: 90.