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Species: Tapinoma sessile

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Taxonomic History (provided by Barry Bolton, 2014)

Formica sessilis Say, 1836 PDF: 287 (w.q.) U.S.A. Nearctic. AntCat AntWiki

Taxonomic history

See Also:

Tapinoma sessile_cf




Found in virtually all habitats, but most common in riparian, grassland and ruderal sites. Impermanent nests in preformed cavities and spaces.


Snelling list also recognizes a Tapinoma n. sp. From California.


The North American ants going by the name Tapinoma sessile are almost certainly a species complex, even with the exclusion of the following species.

Taxonomic Treatment (provided by Plazi)

Specimen Habitat Summary

Found most commonly in these habitats: 23 times found in agricultural zone, 14 times found in oak woodland, 7 times found in Ponderosa pine forest, 0 times found in Mixed canyon forest, 2 times found in Meadow, 2 times found in Pinyon-cedar woodland, 5 times found in Aspen forest, 6 times found in shrub steppe, 5 times found in coastal scrub, 2 times found in subalpine forest, ...

Collected most commonly using these methods or in the following microhabitats: 31 times under rock, 72 times search, 52 times Bay Area Ant Survey (BAAS), 27 times hand collecting, 23 times pitfall, 3 times log stage 4, 6 times under wood, 1 times log stage 2, 1 times Under boulder, 2 times Davis sifter, 1 times hand coll., ...

Elevations: collected from 5 - 3202 meters, 1525 meters average

Type specimens: lectotype: casent0172856, casent0172857

(-1 examples)

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