Wheeler, W.M., 1913
Nests are found in the soil, with the entrance surrounded by a small mound. It also nests at the base of desert plants, especially grass clumps, in areas of fine sand to loam. It occasionally nests under stones or pieces of wood.
The clypeus is usually concave or notched and it is an abundantly hairy, black (gaster) and red (head and mesosoma) ant. Most surfaces are moderately shining, including the gaster. It is difficult to place this species in a species complex, and it is presently considered to be a member of the neogagates group, but it doesn’t seem to be closely related to the others in the complex. It was previously considered to be a member of the sanguinea group, based on the notched clypeus. (Mackay and Mackay 2002)
Canada, Alberta. United States: Wyoming south to Texas, west to California. Mexico: Chihuahua, Coahuila.
Distribution based on Regional Taxon Lists
Distribution based on AntMaps
Distribution based on AntWeb specimens
Check data from AntWeb
In New Mexico (Mackay and Mackay 2002) - Chihuahuan Desert (mesquite woodlands, playas), especially common in loose sand, up to foothill meadows and low elevation forests (pinyon-juniper) (below 1850 meters), riparian (cottonwoods, sycamore forests). It is abundant in urban environments.
It is preeminently a species peculiar to irrigated lands and river bottoms in the deserts of the southwest. There it nests in rather populous colonies about the roots of bushes or trees, often forming obscure craters or low mound nests ... I have never found it nesting under stones. It is a very active and aggressive ant (W.M. Wheeler, 1913).
For New Mexico (Mackay and Mackay 2002) - This is one of the few species of Formica, which occurs in the Chihuahuan Desert, especially in sandy soils. It is also common in lawns in urban environments. Reproductives were found in nests in July, flights occurred in July, dealate females were found during July. Workers forage on the flowers of Yucca elata. This species apparently does not enslave other species of Formica. It is the host of the cricket Myrmecophila sp. It may be an important predator of the boll weevil. This species shows division of labor, and the workers undertake 38 different behavioral acts.
Nevada, Wheeler and Wheeler (1986) – F. perpilosa presents a seeming paradox in Nevada: it has been found only within the boundaries of the Hot Desert, but it cannot be classed as a Hot Desert ant, because it occurs only near streams and other well-watered places. It is our only truly riparian species. Our 16 records are from 8 localities, all in the southern part of the state. We ourselves have found it only once: in Beatty, in a gravel sidewalk beside a hedge which bordered a tree-filled lawn. The low messy crater was 40 cm in diameter, with numerous entrances 6-12 mm in diameter. The workers moved swiftly. Elasmosoma vigilans Ckll. (Hymenoptera: Braconidae; det. P.M. Marsh) was collected at Las Vegas by D.F. Zoller, who noted that the wasps were darting at the ants. This braconid is known to be an ant parasitoid.
The following information is derived from Barry Bolton's Online Catalogue of the Ants of the World.
- perpilosa. Formica perpilosa Wheeler, W.M. 1913f: 421 (w.q.m.) U.S.A. [First available use of Formica fusca subsp. subpolita var. perpilosa Wheeler, W.M. 1902b: 141; unavailable name.] Combination in F. (Raptiformica): Emery, 1925b: 259.
- Mackay, W. P. and E. Mackay. 2002. The ants of New Mexico (Hymenoptera: Formicidae). Edwin Mellen Press, Lewiston, NY.
- Wheeler, G. C. and J. Wheeler. 1986. The ants of Nevada. Natural History Museum of Los Angeles County, Los Angeles.
- Wheeler, W. M. 1902b. Formica fusca Linn. subsp. subpolita Mayr, var. perpilosa, n. var. Mem. Rev. Soc. Cient. "Antonio Alzate" 17: 141-142 (page 141, First available use of Formica fusca subsp. subpolita var. perpilosa Wheeler; unavailable name.)
- Wheeler, W. M. 1913i. A revision of the ants of the genus Formica (Linné) Mayr. Bull. Mus. Comp. Zool. 53: 379-565 (page 421, worker, queen, male described)
References based on Global Ant Biodiversity Informatics
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- Mackay, W.P. and E. Mackay. XXXX. The Ants of New Mexico
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- Wheeler G. C., and J. Wheeler. 1986. The ants of Nevada. Los Angeles: Natural History Museum of Los Angeles County, vii + 138 pp.
- Wheeler W. M. 1902. Formica fusca Linn. subsp. subpolita Mayr, var. perpilosa, n. var. Memorias y Revista de la Sociedad Científica "Antonio Alzate". 17: 141-142.
- 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. 1985. A checklist of Texas ants. Prairie Naturalist 17:49-64.
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