Nylanderia parvula

Nests often occur in open areas, especially at forest edges and under stones (Trager, 1984). In the northeastern United States, they are particularly common in sandy substrates where small craters mark their nests, with much of their nest near the surface. Chambers have been found up to 30 cm below the surface (Trager, 1984). Reproductives are reared in mid summer in the north and late summer in the south, which then overwinter and fly the following spring (Trager, 1984) (Kallal & LaPolla, 2012).

Identification
Kallal & LaPolla (2012) - Small (TL: 1.6–2.2); uniformly dark brown to black in color; scape macrosetae absent.

Compare with: Nylanderia trageri and Nylanderia wojciki.

Nylanderia parvula is one of only two species in the Nearctic that lacks scape macrosetae in the worker caste. The other is N. trageri, which is yellow. While some western populations of N. parvula are lighter than eastern populations they are always brown to darker in coloration, never being yellow as is observed in N. trageri.

Identification Keys including this Taxon

 * Key to Nearctic Nylanderia workers
 * Key to Nearctic Nylanderia males

Distribution
Eastern US.

Distribution based on Regional Taxon Lists
Nearctic Region: United States.

Biology
Nylanderia parvula can be found in nearly every state in the eastern half the United States. They are among the most common ants in the sandy, moist pine barrens of the Northeast, the mixed deciduous forests of the Great Smoky Mountains, and sandy pine-oak dune woodlands of the Southeast. This species is found the furthest north of any Nylanderia species in the Nearctic, occurring into Ontario, Canada. This species serves as the host for workerless inquiline in Massachusetts, the lone parasitic ant known from and preying upon Nylanderia.

Nomenclature

 *  parvula. Prenolepis parvula Mayr, 1870b: 948 (w.q.m.) U.S.A. Wheeler, G.C. & Wheeler, J. 1968: 211 (l.). Combination in Pr. (Nylanderia): Forel, 1922: 98; in Paratrechina (Nylanderia): Emery, 1925b: 222; in Nylanderia: LaPolla, Brady & Shattuck, 2010a: 127. Subspecies of vividula: Forel, 1885a: 348; Mayr, 1886d: 431. Revived status as species: Emery, 1893i: 636. See also: Trager, 1984b: 104; Kallal & LaPolla, 2012: 27.

Worker
Kallal & LaPolla (2012) - Measurements (n=15) TL: 1.63–2.31; HW: 0.43–0.56; HL: 0.515–0.64; EL: 0.14–0.17; SL: 0.47–0.67; PW: 0.22–0.41; WL: 0.57–0.76; GL: 0.50–0.92; PH: 0.16–0.30; PFL: 0.45–0.52; PFW: 0.12–0.19. SMC: 0; PMC: 2–5; MMC: 2–3. Indices: CI: 78–90; REL: 24–30; SI: 84–118; FI: 80–95.

Dark brown in color; antennae and mandibles distinctly lighter, often grayish yellow; leg joints yellowish, especially tarsi; mesocoxae and metacoxae infrequently less dark than mesosoma; cuticle smooth and shiny; cephalic pubescence moderate; mesosoma and gastral pubescence virtually absent. Head ovate; posterior margin slightly emarginated medially; scapes surpass posterior margin by first 2–3 funicular segments; ocelli not apparent. Pronotal anterior face at least 45°; pronotum weakly inflected with approximately equally long pronotal anterior and pronotal dorsal faces; anterior margin mesonotum continuous with, or slightly higher than, pronotal margin; propodeum gently rounded with declivitous face slightly longer than the dorsal face.

Queen
Kallal & LaPolla (2012) - Measurements (n=4) TL: 3.31–4.84; HW: 0.68–0.83; HL: 0.73–0.82; EL: 0.24–0.26; SL: 0.77–0.81; PW: 0.80–0.93; MW: 0.76–0.86; WL: 1.15–1.41; GL: 1.31–2.62; PH: 0.41–0.51; PFL: 0.63–0.80; PFW: 0.21–0.22. SMC: 0; PMC: 3–6; MMC: 8–20; MtMC: 3–5. Indices: CI: 92–104; REL: 31–35; SI: 96–111; FI: 83–110.

Dark brown to nearly black in color; scapes and mandibles lighter brown; leg joints and tarsi yellowish-brown; cuticle smooth and shiny; body with dense pubescence; macrosetae brown. Head as broad as it is long; scapes surpass posterior margin by first 3–4 funicular segments. Propodeum with short, sloped dorsal face and steeply sloped declivitous face.

Male
Kallal & LaPolla (2012) - Measurements (n=4) TL: 1.75–2.35; HW: 0.48–0.54; HL: 0.48–0.59; EL: 0.20–0.22; SL: 0.50–0.66; PW: 0.44–0.61; MW: 0.34–0.50; WL: 0.65–0.80; GL: 0.62–0.98; PH: 0.22–0.32; PFL: 0.45–0.56; PFW: 0.13–0.16; PL: 0.19–0.24. SMC: 0; MMC: 3–9; MtMC: 2. Indices: CI: 89–100; REL: 36–42; SI: 100–115; FI: 81–99.

Overall brown with yellowish-brown scapes and legs; gaster often slightly darker brown; cuticle smooth and shiny; cephalic pubescence moderate to dense; mesonotum with dense pubescence; gastral pubescence virtually absent. Head slightly longer than broad; eyes weakly convex, scarcely extending beyond lateral margins of the head in full face view; scapes surpass posterior margin by first 3–4 segments; mandible with long, straight inner mandibular margin; basal angle of approximately 90°; and a smooth masticatory margin large apical tooth and smaller subapical tooth. Mesosoma enlarged to accommodate flight muscles; in lateral view, pronotal margin short and relatively straight; propodeum with long, sloped dorsal face and shorter, nearly vertical declivitous face. Genitalia: parameres laterally oriented, short, triangular; digiti and cuspides as in faisonensis and concinna, but overall shorter, particular the cuspides; aedeagal valves triangular, with small notch toward the base of the ventral edge, teeth absent; ninth sternite with moderately long ventral apodeme and short, blunt lateral apodemes.

References based on Global Ant Biodiversity Informatics

 * Allred D. M. 1982. Ants of Utah. The Great Basin Naturalist 42: 415-511.
 * Allred, D.M. 1982. The ants of Utah. Great Basin Naturalist 42:415-511.
 * 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.
 * Bare O. S. 1929. A taxonomic study of Nebraska ants, or Formicidae (Hymenoptera). Thesis, University of Nebraska, Lincoln, USA.
 * Belcher A. K., M. R. Berenbaum, and A. V. Suarez. 2016. Urbana House Ants 2.0.: revisiting M. R. Smith's 1926 survey of house-infesting ants in central Illinois after 87 years. American Entomologist 62(3): 182-193.
 * Buren W. F. 1941. A preliminary list of Iowa ants. Iowa State College Journal of Science 15: 111-117
 * Callcott A. M. A., D. H. oi, H. L. Collins, D. F. Williams, and T. C. Lockley. 2000. Seasonal Studies of an Isolated Red Imported Fire Ant (Hymenoptera: Formicidae) Population in Eastern Tennessee. Environmental Entomology, 29(4): 788-794.
 * 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.
 * Clark Adam. Personal communication on November 25th 2013.
 * Cole A. C., Jr. 1949. The ants of Mountain Lake, Virginia. Journal of the Tennessee Academy of Science 24: 155-156.
 * Cole A. C., Jr. 1953. A checklist of the ants (Hymenoptera: Formicidae) of the Great Smoky Mountains National Park, Tennessee. Journal of the Tennessee Academy of Science 28: 34-35.
 * 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
 * Dattilo W. et al. 2019. MEXICO ANTS: incidence and abundance along the Nearctic-Neotropical interface. Ecology https://doi.org/10.1002/ecy.2944
 * Davis W. T., and J. Bequaert. 1922. An annoted list of the ants of Staten Island and Long Island, N. Y. Bulletin of the Brooklyn Entomological Society 17(1): 1-25.
 * Del Toro I., K. Towle, D. N. Morrison, and S. L. Pelini. 2013. Community Structure, Ecological and Behavioral Traits of Ants (Hymenoptera: Formicidae) in Massachusetts Open and Forested Habitats. Northeastern Naturalist 20: 1-12.
 * Del Toro, I. 2010. PERSONAL COMMUNICATION. MUSEUM RECORDS COLLATED BY ISRAEL DEL TORO
 * 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.
 * DuBois M. B. 1981. New records of ants in Kansas, III. State Biological Survey of Kansas. Technical Publications 10: 32-44
 * Dubois, M.B. and W.E. Laberge. 1988. An Annotated list of the ants of Illionois. pages 133-156 in Advances in Myrmecology, J. Trager
 * Ellison A. M. 2012. The Ants of Nantucket: Unexpectedly High Biodiversity in an Anthropogenic Landscape. Northeastern Naturalist 19(1): 43-66.
 * Ellison A. M., and E. J. Farnsworth. 2014. Targeted sampling increases knowledge and improves estimates of ant species richness in Rhode Island. Northeastern Naturalist 21(1): NENHC-13NENHC-24.
 * Emery C. 1893. Beiträge zur Kenntniss der nordamerikanischen Ameisenfauna. Zoologische Jahrbücher. Abteilung für Systematik, Geographie und Biologie der Tiere 7: 633-682.
 * 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.
 * 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.
 * Graham J.H., H.H. Hughie, S. Jones, K. Wrinn, A.J. Krzysik, J.J. Duda, D.C. Freeman, J.M. Emlen, J.C. Zak, D.A. Kovacic, C. Chamberlin-Graham, H. Balbach. 2004. Habitat disturbance and the diversity and abundance of ants (Formicidae) in the Southeastern Fall-Line Sandhills. 15pp. Journal of Insect Science. 4: 30
 * 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.
 * 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
 * Kittelson P. M., M. P. Priebe, and P. J. Graeve. 2008. Ant Diversity in Two Southern Minnesota Tallgrass Prairie Restoration Sites. Jour. Iowa Acad. Sci. 115(14): 2832.
 * 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
 * MacGown J. A. 2015. Report on the ants collected on Spring Island, Beaufort County, South Carolina. A report submitted to Spring Island Nature Preserve, May 2015. Mississippi Entomological Museum Report #2015-01. 8 pp
 * 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.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. 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.
 * Menke S. B., E. Gaulke, A. Hamel, and N. Vachter. 2015. The effects of restoration age and prescribed burns on grassland ant community structure. Environmental Entomology http://dx.doi.org/10.1093/ee/nvv110
 * Menke S. B., and N. Vachter. 2014. A comparison of the effectiveness of pitfall traps and winkler litter samples for characterization of terrestrial ant (Formicidae) communities in temperate savannas. The Great Lakes Entomologist 47(3-4): 149-165.
 * Messer S.J., S. P. Cover, and J. S. LaPolla. 2016. Nylanderia deceptrix sp. n., a new species of obligately socially parasitic formicine ant (Hymenoptera, Formicidae). ZooKeys 552: 49–65.
 * Munsee J. R. 1968. Nine species of ants (Formicidae) recently recorded from Indiana. Proc. Indiana Acad. Sci. 77: 222-227.
 * 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.
 * Sturtevant A. H. 1931. Ants collected on Cape Cod, Massachusetts. Psyche (Cambridge) 38: 73-79
 * Talbot M. 1976. A list of the ants (Hymenoptera: Formicidae) of the Edwin S. George Reserve, Livingston County, Michigan. Great Lakes Entomologist 8: 245-246.
 * Trager J. C. 1984. A revision of the genus Paratrechina (Hymenoptera: Formicidae) of the continental United States. Sociobiology 9: 49-162
 * Van Pelt A. F. 1956. The ecology of the ants of the Welaka Reserve, Florida (Hymenoptera: Formicidae). American Midland Naturalist 56: 358-387
 * Van Pelt A. F. 1966. Activity and density of old-field ants of the Savannah River Plant, South Carolina. Journal of the Elisha Mitchell Scientific Society 82: 35-43.
 * Van Pelt A., and J. B. Gentry. 1985. The ants (Hymenoptera: Formicidae) of the Savannah River Plant, South Carolina. Dept. Energy, Savannah River Ecology Lab., Aiken, SC., Report SRO-NERP-14, 56 p.
 * Warren, L.O. and E.P. Rouse. 1969. The Ants of Arkansas. Bulletin of the Agricultural Experiment Station 742:1-67
 * Wheeler G. C., J. N. Wheeler, and P. B. Kannowski. 1994. Checklist of the ants of Michigan (Hymenoptera: Formicidae). The Great Lakes Entomologist 26(4): 297-310
 * Wheeler, G.C. and J. Wheeler. 1985. A checklist of Texas ants. Prairie Naturalist 17:49-64.
 * Wheeler, G.C., J. Wheeler and P.B. Kannowski. 1994. CHECKLIST OF THE ANTS OF MICHIGAN (HYMENOPTERA: FORMICIDAE). Great Lakes Entomologist 26:1:297-310