Nylanderia faisonensis

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Nylanderia faisonensis
Scientific classification
Kingdom: Animalia
Phylum: Arthropoda
Class: Insecta
Order: Hymenoptera
Family: Formicidae
Subfamily: Formicinae
Tribe: Lasiini
Genus: Nylanderia
Species: N. faisonensis
Binomial name
Nylanderia faisonensis
(Forel, 1922)

Paratrechina faisonensis casent0104218 profile 1.jpg

Paratrechina faisonensis casent0104218 dorsal 1.jpg

Specimen labels

Nylanderia faisonensis nests are found in leaf litter, rotten wood, and soil (Trager, 1984). Observed nests are shallow and likely temporal. Reproductives are reared in August through December, at which point they overwinter in the nest and fly between March and May, with southern populations flying earlier (Trager, 1984; Colby & Prowell, 2006) (Kallal & LaPolla, 2012).


Kallal & LaPolla (2012) - Uniformly brown in color (or with slightly darker gaster) with lighter, yellowish-brown mandibles and scapes, and strongly contrasting, pale whitish mesocoxae and metacoxae.

Compare with: Nylanderia austroccidua, Nylanderia concinna, Nylanderia flavipes, Nylanderia steinheili, Nylanderia terricola, Nylanderia vividula, and Nylanderia wojciki.

Nylanderia faisonensis is sympatric with numerous morphologically similar species. Most similar to this species is N. wojciki, as both share pale mesocoxae and metacoxae. The latter is typically bicolored, possesses less macrosetae on its scape and its known range is limited to the southeastern U.S. Nylanderia faisonensis is never truly bicolored, although its gaster may be darker brown than the rest of its body. Nylanderia concinna is also morphologically similar to N. faisonensis, but two major diagnostic features set them apart: N. faisonensis has very pale whitish mesocoxae and metacoxae, while N. concinna has medium brown (lighter than mesosoma) mesocoxae and metacoxae; N. faisonens also typically lacks the neat band of pubescence across the anterior edge of the propodeum. In the northeastern U.S., N. faisonensis is most likely to be confused with the introduced species, N. flavipes. Nylanderia flavipes is typically bicolored and possesses ocelli that are apparent, which N. faisonensis lacks. Nylanderia vividula and N. terricola are both known to possess lighter mesocoxae and metacoxae, however, both of these species have very sparse cephalic pubescence whereas it is dense in N. faisonensis. Finally, the worker of the Caribbean species N. steinheili, may be confused with N. faisonensis, but N. steinheili has a distinctly pubescent mesosoma.

Identification Keys including this Taxon


Eastern US, west to Texas and Arkansas.

Latitudinal Distribution Pattern

Latitudinal Range: 42.33166667° to 24.48472222°.

Tropical South

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


Mesic decidous forest and pine forest.


Kallal & LaPolla (2012) - This species is a common member of the ant fauna in mesic, deciduous forests and, to a lesser extent, pine forests, making it one of the most numerous ants in the eastern half of the United States. Along with Aphaenogaster rudis and Prenolepis imparis, Nylanderia faisonensis is one of the dominant species in the northeastern U.S. (Lynch et al., 1980; Lynch, 1981; Lynch & Johnson, 1988). It has been observed as far west as Texas and Arkansas (General & Thompson, 2008). In general, they are tolerant and submissive to sympatric species in studies on dominance and coexistence with other ants (Lessard et al., 2009). An undescribed socially parasitic Nylanderia species (n. sp. 1) is known to parasitize N. faisonensis populations in northern Florida (Cover et al., in prep).

Flight Period

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

Source: antkeeping.info.

Association with Other Organisms

This species is a host for the ant Nylanderia parasitica (a workerless inquiline) in United States (Messer et al., 2020).




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

  • faisonensis. Prenolepis (Nylanderia) arenivaga var. faisonensis Forel, 1922: 98 (w.) U.S.A. Kallal & LaPolla, 2012: 19 (q.m.). Combination in Paratrechina (Nylanderia): Emery, 1925b: 221; in Nylanderia: LaPolla, Brady & Shattuck, 2010a: 127. Junior synonym of arenivaga: Creighton, 1950a: 408. Revived from synonymy and raised to species: Trager, 1984b: 93.

Type Material

Unless otherwise noted the text for the remainder of this section is reported from the publication that includes the original description.



Kallal & LaPolla (2012) - Measurements (n=24) TL: 1.85–2.56; HW: 0.44–0.59; HL: 0.59–0.74; EL: 0.14–0.17; SL: 0.62–0.82; PW: 0.34–0.46; WL: 0.59–0.85; GL: 0.67–1.23; PH: 0.17–0.29; PFL: 0.52–0.65; PFW: 0.14–0.20. SMC: 5–12; PMC: 2–6; MMC: 2–4. Indices: CI: 80–85; REL: 20–27; SI: 107–124; FI: 88–98.

Uniform brown in color, or often with darker brown gaster; antennae and mandibles yellow; mesocoxae and metacoxae pale and whitish, strongly contrasting with mesosoma; cuticle smooth and shiny; cephalic pubescence dense; mesosoma and gastral pubescence virtually absent. Head ovate; posterior margin slightly emarginated medially; scapes surpass posterior margin by first 3–4 funicular segments; ocelli generally not apparent. Pronotal anterior face at approximately 45°; pronotum inflected with pronotal anterior face slightly shorter than pronotal dorsal face; anterior margin of mesonotum continuous with pronotal margin; propodeum gently rounded with shorter dorsal face.


Kallal & LaPolla (2012) - Measurements (n=5) TL: 3.37–4.14; HW: 0.75–0.80; HL: 0.69–0.79; EL: 0.23–0.25; SL: 0.80–0.87; PW: 0.74–0.90; MW: 0.66–0.81; WL: 1.01–1.25; GL: 1.59–2.20; PH: 0.37–0.50; PFL: 0.65–0.75; PFW: 0.20–0.23. SMC: 4–10; PMC: 4–6; MMC: 4–14; MtMC: 1–3. Indices: CI: 91–102; REL: 30–33; SI: 102–112; FI: 81–95.

Uniform light brown in color; mesocoxae and metacoxae slightly lighter brown; gaster slightly darker brown; cuticle smooth ad shiny; body with dense pubescence; macrosetae brown. Head as broad as it is long; scapes surpass posterior margin by first 3 funicular segments. Propodeum with very short dorsal face and long declivitous face.


Kallal & LaPolla (2012) - Measurements (n=6) TL: 1.91–2.37; HW: 0.47–0.52; HL: 0.51–0.59; EL: 0.17–0.21; SL: 0.53–0.74; PW: 0.40–0.54; MW: 0.38–0.48; WL: 0.62–0.81; GL: 0.61–0.98; PH: 0.23–0.30; PFL: 0.47–0.66; PFW: 0.13–0.17; PL: 0.16–0.25. SMC: 4–7; MMC: 6–12; MtMC: 2–3. Indices: CI: 87–94; REL: 34–36; SI: 104–129; FI: 92–113.

Overall medium brown; scapes and joints of legs yellowish-brown; mesocoxae and metacoxae pale and whitish, strongly contrasting with the rest of the body; gaster often darker brown; cuticle smooth and shiny; cephalic pubescence moderate to dense; mesosoma with dense pubescence on the mesonotum; gastral pubescence absent; macrosetae dark brown. Head as broad as it is long; eyes weakly convex, scarcely extending beyond lateral margins of the head in full face view; scapes surpass posterior margin by first 3–4 segments; mandibles with long, straight inner mandibular margin, a basal angle of approximately 90°, and a smooth masticatory margin with large apical tooth and sometime smaller subapical teeth (up to 4 denticles present in one specimen). Mesosoma enlarged to accommodate flight muscles; in lateral view, pronotal margin short and relatively straight; propodeum with long, sloped dorsal face becoming steeply sloped at inflection point to declivitous face. Genitalia: parameres laterally oriented, triangular; digiti slightly angled; cuspides about half as long, curving dorsally; rounded teeth present on both structures where they meet; aedeagal valves triangular, teeth absent; ninth sternite with long lateral apodemes and thin medial apodeme.


  • Creighton, W. S. 1950a. The ants of North America. Bull. Mus. Comp. Zool. 104: 1-585 (page 408, Junior synonym of arenivaga)
  • Emery, C. 1925d. Hymenoptera. Fam. Formicidae. Subfam. Formicinae. Genera Insectorum 183: 1-302 (page 221, Combination in Paratrechina (Nylanderia))
  • Forel, A. 1922b. Glanures myrmécologiques en 1922. Rev. Suisse Zool. 30: 87-102 (page 98, worker described)
  • Kallal, R.J. & LaPolla, J.S. 2012. Monograph of Nylanderia (Hymenoptera: Formicidae) of the World, Part II: Nylanderia in the Nearctic. Zootaxa 3508, 1-64.
  • Trager, J. C. 1984b. A revision of the genus Paratrechina (Hymenoptera: Formicidae) of the continental United States. Sociobiology 9: 49-162 (page 93, Revived from synonymy, and raised to species)

References based on Global Ant Biodiversity Informatics

  • Annotated Ant Species List Ordway-Swisher Biological Station. Downloaded at http://ordway-swisher.ufl.edu/species/os-hymenoptera.htm on 5th Oct 2010.
  • Atchison R. A., J. Hulcr, and A. Lucky. 2018. Managed fire frequency significantly influences the litter arthropod community in longleaf pine flatwoods. Environmental Entomology 20(10): 1-11.
  • Campbell K. U., and T. O. Crist. 2017. Ant species assembly in constructed grasslands isstructured at patch and landscape levels. Insect Conservation and Diversity doi: 10.1111/icad.12215
  • Carroll T. M. 2011. The ants of Indiana (Hymenoptera: Formicidae). Master's Thesis Purdue university, 385 pages.
  • Colby, D. and D. Prowell. 2006. Ants (Hymenoptera: Formicidae) in Wet Longleaf Pine Savannas in Louisiana. Florida Entomologist 89(2):266-269
  • Coovert G. A. 2005. The Ants of Ohio (Hymenoptera: Formicidae). Ohio Biological Survey, Inc. 15(2): 1-207.
  • Coovert, G.A. 2005. The Ants of Ohio (Hymenoptera: Formicidae) Ohio Biological Survey Bulletin New Series Volume 15(2):1-196
  • Dash S. T. and L. M. Hooper-Bui. 2008. Species diversity of ants (Hymenoptera: Formicidae) in Louisiana. Conservation Biology and Biodiversity. 101: 1056-1066
  • Deyrup M. 1998. Smithistruma memorialis (Hymenoptera: Formicidae), a new species of ant from the Kentucky Cumberland Plateau. Entomological News 109: 81-87.
  • Deyrup M., C. Johnson, G. C. Wheeler, J. Wheeler. 1989. A preliminary list of the ants of Florida. Florida Entomologist 72: 91-101
  • Deyrup, M. 2003. An updated list of Florida ants (Hymenoptera: Formicidae). Florida Entomologist 86(1):43-48.
  • Deyrup, M. and J. Trager. 1986. Ants of the Archbold Biological Station, Highlands County, Florida (Hymenoptera: Formicidae). Florida Entomologist 69(1):206-228
  • Epperson, D.M. and C.R. Allen. 2010. Red Imported Fire Ant Impacts on Upland Arthropods in Southern Mississippi. American Midland Naturalist, 163(1):54-63.
  • Forel A. 1922. Glanures myrmécologiques en 1922. Revue Suisse de Zoologie. 30: 87-102.
  • Forster J.A. 2005. The Ants (hymenoptera: Formicidae) of Alabama. Master of Science, Auburn University. 242 pages.
  • Frye J. A., T. Frye, and T. W. Suman. 2014. The ant fauna of inland sand dune communities in Worcester County, Maryland. Northeastern Naturalist, 21(3): 446-471.
  • General D.M. & Thompson L.C. 2008. New Distributional Records of Ants in Arkansas for 2008. Journal of the Arkansas Academy of Science. 63: 182-184
  • Graham, J.H., A.J. Krzysik, D.A. Kovacic, J.J. Duda, D.C. Freeman, J.M. Emlen, J.C. Zak, W.R. Long, M.P. Wallace, C. Chamberlin-Graham, J.P. Nutter and H.E. Balbach. 2008. Ant Community Composition across a Gradient of Disturbed Military Landscapes at Fort Benning, Georgia. Southeastern Naturalist 7(3):429-448
  • Guénard B., K. A. Mccaffrey, A. Lucky, and R. R. Dunn. 2012. Ants of North Carolina: an updated list (Hymenoptera: Formicidae). Zootaxa 3552: 1-36.
  • Hill J. V. 2012. The ant (Hymenoptera: Formicidae) fauna of the cedar glades and xeric limestone prairies of the Central Basin of Tennessee. Journal of the Tennessee Academy of Science 87(3): 135.
  • Hill, J.G. 2006. Ants collected at Okatibbee Lake, Lauderdale County, Mississippi
  • Ipser R. M. 2004. Native and exotic ants (Hymenoptera: Formicidae) of Georgia: Ecological Relationships with implications for development of biologically-based management strategies. Doctor of Philosophy thesis, University of Georgia. 165 pages.
  • Ivanov K. 2019. The ants of Ohio (Hymenoptera, Formicidae): an updated checklist. Journal of Hymenoptera Research 70: 65–87.
  • Ivanov K., L. Hightower, S. T. Dash, and J. B. Keiper. 2019. 150 years in the making: first comprehensive list of the ants (Hymenoptera: Formicidae) of Virginia, USA. Zootaxa 4554 (2): 532–560.
  • Johnson C. 1986. A north Florida ant fauna (Hymenoptera: Formicidae). Insecta Mundi 1: 243-246
  • Kallal R. J, and J. S. Lapolla. 2012. Monograph of Nylanderia (Hymenoptera: Formicidae) of the world, part II: Nylanderia in the Nearctic. Zootaxa 3508: 1-64.
  • King J. R. 2007. Patterns of co-occurrence and body size overlap among ants in Florida's upland ecosystems. Ann. Zool. Fennici. 44: 189-201
  • Kjar D. 2009. The ant community of a riparian forest in the Dyke Marsh Preserve, Fairfax County, Virginiam and a checklist of Mid-Atlantic Formicidae. Banisteria 33: 3-17.
  • Kjar D., and E. M. Barrows. 2004. Arthropod community heterogeneity in a mid-Atlantic forest highly invaded by alien organisms. Banisteria 23: 26-37.
  • Kjar D., and Z. Park. 2016. Increased ant (Hymenoptera: Formicidae) incidence and richness are associated with alien plant cover in a small mid-Atlantic riparian forest. Myrmecological News 22: 109-117.
  • Klotz, J.H., J.R. Mangold, K.M. Vail, L.R. Davis Jr., R.S. Patterson. 1995. A survey of the urban pest ants (Hymenoptera: Formicidae) of Peninsular Florida. Florida Entomologist 78(1):109-118
  • Lessard, J.-P., R. R. Dunn and N. J. Sanders. 2009. Temperature-mediated coexistence in temperate forest ant communities. Insectes Sociaux 56(2):149-456.
  • Lubertazzi D. and Tschinkel WR. 2003. Ant community change across a ground vegetation gradient in north Florida’s longleaf pine flatwoods. 17pp. Journal of Insect Science. 3:21
  • Lynch J. F. 1988. An annotated checklist and key to the species of ants (Hymenoptera: Formicidae) of the Chesapeake Bay region. The Maryland Naturalist 31: 61-106
  • Lynch J. F., and A. K. Johnson. 1988. Spatial and temporal variation in the abundance and diversity of ants (Hymenoptera: Formicidae) in the soild and litter layers of a Maryland forest. American Midland Naturalist 119(1): 31-44.
  • MacGown J. A., J. G. Hill, R. L. Brown, T. L. Schiefer, J. G. Lewis. 2012. Ant diversity at Noxubee National Wildlife Refuge in Oktibbeha, Noxubee, and Winston Counties, Mississippi. Mississippi Agricultural and Forestry Experiment Station Bulletin 1197: 1-30
  • MacGown J. A., J. G. Hill, and M. Deyrup. 2009. Ants (Hymenoptera: Formicidae) of the Little Ohoopee River Dunes, Emanuel County, Georgia. J. Entomol. Sci. 44(3): 193-197.
  • MacGown J. A., J. G. Hill, and R. L. Brown. 2010. Native and exotic ant in Mississippi state parks. Proceedings: Imported Fire Ant Conference, Charleston, South Carolina, March 24-26, 2008: 74-80.
  • MacGown J. A., and R. L. Brown. 2006. Survey of the ants (Hymenoptera: Formicidae) of the Tombigbee National Forest in Mississippi. Journal of the Kansas Entomological Society 79(4):325-340.
  • MacGown, J. and J.G. Hill. Ants collected at Palestinean Gardens, George County Mississippi.
  • MacGown, J.A and J.A. Forster. 2005. A preliminary list of the ants (Hymenoptera: Formicidae) of Alabama, U.S.A. Entomological News 116(2):61-74
  • MacGown, J.A. and JV.G. Hill. Ants of the Great Smoky Mountains National Park (Tennessee and North Carolina).
  • MacGown, J.A. and R.L. Brown. 2006. Observations on the High Diversity of Native Ant Species Coexisting with Imported Fire Ants at a Microspatial Scale in Mississippi. Southeastern Naturalist 5(4):573-586
  • MacGown, J.A. and R.L. Brown. 2006. Survey of the ants (Hymenoptera: Formicidae) of the Tombigbee National Forest in Mississippi. Journal of the Kansas Entomological Society 79(4):325-340.
  • MacGown, J.A., J.G. Hill, R.L. Brown and T.L. 2009. Ant Diversity at Noxubee National Wildlife Refuge in Oktibbeha, Noxubee, and Winston Counties, Mississippi Report #2009-01. Schiefer. 2009.
  • MacGown. J. 2011. Ants collected during the 25th Annual Cross Expedition at Tims Ford State Park, Franklin County, Tennessee
  • Macgown J. A., S. Y. Wang, J. G. Hill, and R. J. Whitehouse. 2017. A List of Ants (Hymenoptera: Formicidae) Collected During the 2017 William H. Cross Expedition to the Ouachita Mountains of Arkansas with New State Records. Transactions of the American Entomological Society, 143(4): 735-740.
  • Mann H. R., E. Rowe, J. Selfridge, and D. L. Price. 2018. Leaf litter and arboreal ants (Hymenoptera: Formicidae) in a Mid-Atlantic Forest. Northeastern Naturalist 25(2): 341-354.
  • Martelli, M.G., M.M. Ward and Ann M. Fraser. 2004. Ant Diversity Sampling on the Southern Cumberland Plateau: A Comparison of Litter Sifting and Pitfall Trapping. Southeastern Naturalist 3(1): 113-126
  • McDonald D. L., D. R. Hoffpauir, and J. L. Cook. 2016. Survey yields seven new Texas county records and documents further spread of Red Imported Fire Ant, Solenopsis invicta Buren. Southwestern Entomologist, 41(4): 913-920.
  • O'Keefe S. T., J. L. Cook, T. Dudek, D. F. Wunneburger, M. D. Guzman, R. N. Coulson, and S. B. Vinson. 2000. The Distribution of Texas Ants. The Southwestern Entomologist 22: 1-92.
  • Resasco J., S. L. Pelini, K. L. Stuble, N. J. Sanders, R. R. Dunn, S. E. Diamond, A. M. Ellison, N. J. Gotelli, and D. J. Levey. 2014. Using Historical and Experimental Data to Reveal Warming Effects on Ant Assemblages. PLoS ONE 9(2): e88029. doi:10.1371/journal.pone.0088029
  • Toennisson T. A., N. J. Sanders, W. E. Klingeman, and K. M. Vail. 2011. Influences on the Structure of Suburban Ant (Hymenoptera: Formicidae) Communities and the Abundance of Tapinoma sessile. Environ. Entomol. 40(6): 1397-1404.
  • Trager J. C. 1984. A revision of the genus Paratrechina (Hymenoptera: Formicidae) of the continental United States. Sociobiology 9: 49-162
  • Uno S., J. Cotton, and S. M. Philpott. Diversity, abundance, and species composition of ants in urban green spaces. Urban Ecosyst 13: 425–441.