Nearctic Region Species List

Nearctic Region
Statistics
Countries	2
Subfamilies	9
Genera	80
Endemic Genera	1
% Endemic Genera	1.3
Species/Subspecies	833
Endemic Species	315
% Endemic Species	37.8
First Species Described	1758
Last Species Described	2023

This is an AntWiki Report

The following species and subspecies are known from the Nearctic Region. The countries listed are only those within this region. Species noted as 'introduced' are considered to be introduced into at least one country within the region (but may be native in other countries). Endemic species (those known only from this region) are noted except where the genus is endemic, in which case all of the listed species are endemic.

Acanthostichus

Acanthostichus arizonensis Mackay, W.P., 1996 (United States)
Acanthostichus davisi (Smith, M.R., 1942) (United States)
Acanthostichus punctiscapus Mackay, W.P., 1996 (United States)
Acanthostichus texanus Forel, 1904 (United States)

Acromyrmex

Acromyrmex versicolor (Pergande, 1893) (United States)

Acropyga

Acropyga epedana Snelling, R.R., 1973 (United States) Endemic to this region

Anochetus

Anochetus mayri Emery, 1884 (United States) (introduced)

Aphaenogaster

Aphaenogaster ashmeadi (Emery, 1895) (United States) Endemic to this region
Aphaenogaster boulderensis Smith, M.R., 1941 (United States)
Aphaenogaster carolinensis Wheeler, W.M., 1915 (United States) Endemic to this region
Aphaenogaster flemingi Smith, M.R., 1928 (United States) Endemic to this region
Aphaenogaster floridana Smith, M.R., 1941 (United States) Endemic to this region
Aphaenogaster fulva Roger, 1863 (United States) Endemic to this region
Aphaenogaster huachucana Creighton, 1934 (United States)
Aphaenogaster lamellidens Mayr, 1886 (United States) Endemic to this region
Aphaenogaster mariae Forel, 1886 (United States) Endemic to this region
Aphaenogaster megommata Smith, M.R., 1963 (United States)
Aphaenogaster miamiana Wheeler, W.M., 1932 (United States)
Aphaenogaster occidentalis (Emery, 1895) (Canada, United States) Endemic to this region
Aphaenogaster patruelis Forel, 1886 (United States)
Aphaenogaster picea (Wheeler, W.M., 1908) (United States) Endemic to this region
Aphaenogaster punctaticeps Mackay, W.P., 1989 (United States)
Aphaenogaster rudis Enzmann, J., 1947 (United States) Endemic to this region
Aphaenogaster smithi Gregg, 1949 (United States) Endemic to this region
Aphaenogaster tennesseensis (Mayr, 1862) (United States) Endemic to this region
Aphaenogaster texana Wheeler, W.M., 1915 (United States)
Aphaenogaster treatae Forel, 1886 (United States) Endemic to this region
Aphaenogaster uinta Wheeler, W.M., 1917 (United States) Endemic to this region
Aphaenogaster umphreyi Deyrup & Davis, 1998 (United States) Endemic to this region

Atta

Atta mexicana (Smith, F., 1858) (United States)
Atta texana (Buckley, 1860) (United States)

Brachymyrmex

Brachymyrmex aphidicola Forel, 1909 (United States)
Brachymyrmex bruchi Forel, 1912 (United States)
Brachymyrmex cordemoyi Forel, 1895 (United States)
Brachymyrmex depilis Emery, 1893 (Canada, United States)
Brachymyrmex obscurior Forel, 1893 (United States) (introduced)
Brachymyrmex patagonicus Mayr, 1868 (United States) (introduced)
Brachymyrmex termitophilus Forel, 1895 (United States)

Brachyponera

Brachyponera chinensis (Emery, 1895) (United States) (introduced)

Camponotus

Camponotus absquatulator Snelling, R.R., 2006 (United States)
Camponotus acutirostris Wheeler, W.M., 1910 (United States)
Camponotus americanus Mayr, 1862 (United States) Endemic to this region
Camponotus anthrax Wheeler, W.M., 1911 (United States)
Camponotus atriceps (Smith, F., 1858) (United States)
Camponotus bakeri Wheeler, W.M., 1904 (United States) Endemic to this region
Camponotus caryae (Fitch, 1855) (United States)
Camponotus castaneus (Latreille, 1802) (United States) Endemic to this region
Camponotus chromaiodes Bolton, 1995 (United States) Endemic to this region
Camponotus clarithorax Creighton, 1950 (United States)
Camponotus cuauhtemoc Snelling, R.R., 1988 (United States)
Camponotus decipiens Emery, 1893 (United States)
Camponotus discolor (Buckley, 1866) (United States) Endemic to this region
Camponotus dumetorum Wheeler, W.M., 1910 (United States)
Camponotus essigi Smith, M.R., 1923 (United States)
Camponotus festinatus (Buckley, 1866) (United States)
Camponotus floridanus (Buckley, 1866) (United States) Endemic to this region
Camponotus fragilis Pergande, 1893 (United States)
Camponotus herculeanus (Linnaeus, 1758) (Canada, United States)
Camponotus hyatti Emery, 1893 (United States)
Camponotus inaequalis Roger, 1863 (United States)
Camponotus incensus Wheeler, W.M., 1932 (United States) Endemic to this region
Camponotus laevigatus (Smith, F., 1858) (United States, United States)
Camponotus laevissimus Mackay, 2019 (Canada, United States)
Camponotus maccooki Forel, 1879 (United States)
Camponotus maritimus Ward, 2005 (United States) Endemic to this region
Camponotus microps Snelling, R.R., 2006 (United States)
Camponotus mina Forel, 1879 (United States)
Camponotus modoc Wheeler, W.M., 1910 (Canada, United States)
Camponotus nearcticus Emery, 1893 (Canada, United States) Endemic to this region
Camponotus novaeboracensis (Fitch, 1855) (Canada, United States) Endemic to this region
Camponotus novogranadensis Mayr, 1870 (United States) (introduced)
Camponotus ocreatus Emery, 1893 (United States)
Camponotus pennsylvanicus (De Geer, 1773) (Canada, United States)
Camponotus planatus Roger, 1863 (United States)
Camponotus pudorosus Emery, 1925 (United States)
Camponotus sansabeanus (Buckley, 1866) (United States)
Camponotus sayi Emery, 1893 (United States)
Camponotus schaefferi Wheeler, W.M., 1909 (United States) Endemic to this region
Camponotus semitestaceus Snelling, R.R., 1970 (United States)
Camponotus sexguttatus (Fabricius, 1793) (United States)
Camponotus snellingi Bolton, 1995 (United States) Endemic to this region
Camponotus socius Roger, 1863 (United States)
Camponotus subbarbatus Emery, 1893 (United States) Endemic to this region
Camponotus texanus Wheeler, W.M., 1903 (United States) Endemic to this region
Camponotus trepidulus Creighton, 1965 (United States)
Camponotus ulcerosus Wheeler, W.M., 1910 (United States)
Camponotus vafer Wheeler, W.M., 1910 (United States)
Camponotus vicinus Mayr, 1870 (Canada, United States)
Camponotus yogi Wheeler, W.M., 1915 (United States)

Cardiocondyla

Cardiocondyla emeryi Forel, 1881 (United States) (introduced)
Cardiocondyla mauritanica Forel, 1890 (United States) (introduced)
Cardiocondyla minutior Forel, 1899 (United States) (introduced)
Cardiocondyla obscurior Wheeler, W.M., 1929 (United States) (introduced)
Cardiocondyla venustula Wheeler, W.M., 1908 (United States) (introduced)
Cardiocondyla wroughtonii (Forel, 1890) (United States) (introduced)

Carebara

Carebara longii (Wheeler, W.M., 1903) (United States) Endemic to this region

Cephalotes

Cephalotes rohweri (Wheeler, W.M., 1916) (United States)
Cephalotes texanus (Santschi, 1915) (United States)
Cephalotes varians (Smith, F., 1876) (United States) (introduced)

Colobopsis

Colobopsis acuta Mackay, 2018 (United States) Endemic to this region
Colobopsis etiolata (Wheeler, W.M., 1904) (United States)
Colobopsis impressa Roger, 1863 (United States)
Colobopsis mississippiensis (Smith, M.R., 1923) (United States) Endemic to this region
Colobopsis obliqua (Smith, M.R., 1930) (United States) Endemic to this region
Colobopsis papago (Creighton, 1953) (United States)
Colobopsis riehlii Roger, 1863 (United States)

Crematogaster

Crematogaster ashmeadi Mayr, 1886 (United States)
Crematogaster browni Buren, 1968 (United States)
Crematogaster californica Wheeler, W.M., 1919 (United States)
Crematogaster cerasi (Fitch, 1855) (Canada, United States)
Crematogaster coarctata Mayr, 1870 (United States)
Crematogaster colei Buren, 1968 (United States) Endemic to this region
Crematogaster corvina Mayr, 1870 (United States)
Crematogaster crinosa Mayr, 1862 (United States)
Crematogaster dentinodis Forel, 1901 (United States)
Crematogaster depilis Wheeler, W.M., 1919 (United States)
Crematogaster detecta Ward & Blaimer, 2022 (United States) Endemic to this region
Crematogaster distans Mayr, 1870 (United States)
Crematogaster emeryana Creighton, 1950 (United States)
Crematogaster hespera Buren, 1968 (United States)
Crematogaster isolata Buren, 1968 (United States)
Crematogaster laeviuscula Mayr, 1870 (United States)
Crematogaster larreae Buren, 1968 (United States)
Crematogaster lineolata (Say, 1836) (United States)
Crematogaster marioni Buren, 1968 (United States)
Crematogaster minutissima Mayr, 1870 (United States)
Crematogaster missouriensis Emery, 1895 (United States) Endemic to this region
Crematogaster mutans Buren, 1968 (United States) Endemic to this region
Crematogaster navajoa Buren, 1968 (United States) Endemic to this region
Crematogaster nocturna Buren, 1968 (United States) Endemic to this region
Crematogaster obscurata Emery, 1895 (United States) (introduced)
Crematogaster opaca Mayr, 1870 (United States)
Crematogaster opuntiae Buren, 1968 (United States)
Crematogaster parapilosa Ward & Blaimer, 2022 (United States) Endemic to this region
Crematogaster pilosa Emery, 1895 (United States) Endemic to this region
Crematogaster pinicola Deyrup & Cover, 2007 (United States) Endemic to this region
Crematogaster punctulata Emery, 1895 (United States)
Crematogaster rifelna Buren, 1968 (United States)
Crematogaster torosa Mayr, 1870 (United States)
Crematogaster vermiculata Emery, 1895 (United States)
Crematogaster vetusta Ward & Blaimer, 2022 (United States)

Cryptopone

Cryptopone gilva (Roger, 1863) (United States) Endemic to this region

Cyphomyrmex

Cyphomyrmex flavidus Pergande, 1896 (United States)
Cyphomyrmex minutus Mayr, 1862 (United States) (introduced)
Cyphomyrmex rimosus (Spinola, 1851) (United States) (introduced)
Cyphomyrmex wheeleri Forel, 1900 (United States)

Discothyrea

Discothyrea testacea Roger, 1863 (United States)

Dolichoderus

Dolichoderus mariae Forel, 1885 (United States)
Dolichoderus plagiatus (Mayr, 1870) (Canada, United States)
Dolichoderus pustulatus Mayr, 1886 (United States) Endemic to this region
Dolichoderus taschenbergi (Mayr, 1866) (Canada, United States) Endemic to this region

Dolopomyrmex

Genus endemic to this region

Dolopomyrmex pilatus Cover & Deyrup, 2007 (United States)

Dorymyrmex

Dorymyrmex bicolor Wheeler, W.M., 1906 (United States)
Dorymyrmex bossutus (Trager, 1988) (United States) Endemic to this region
Dorymyrmex bureni (Trager, 1988) (United States)
Dorymyrmex elegans (Trager, 1988) (United States)
Dorymyrmex flavopectus Smith, M.R., 1944 (United States)
Dorymyrmex flavus McCook, 1879 (United States)
Dorymyrmex grandulus (Forel, 1922) (United States) Endemic to this region
Dorymyrmex insanus (Buckley, 1866) (United States)
Dorymyrmex lipan Snelling, R.R., 1995 (United States)
Dorymyrmex medeis (Trager, 1988) (United States) Endemic to this region
Dorymyrmex paiute Snelling, R.R., 1995 (United States) Endemic to this region
Dorymyrmex reginicula (Trager, 1988) (United States) Endemic to this region
Dorymyrmex smithi Cole, 1936 (United States)
Dorymyrmex wheeleri (Kusnezov, 1952) (United States) Endemic to this region

Eurhopalothrix

Eurhopalothrix floridana Brown & Kempf, 1960 (United States)

Forelius

Forelius damiani Guerrero & Fernández, 2008 (United States)
Forelius mccooki (McCook, 1879) (United States)
Forelius pruinosus (Roger, 1863) (United States)

Formica

Formica accreta Francoeur, 1973 (Canada, United States) Endemic to this region
Formica adamsi Wheeler, W.M., 1909 (Canada, United States) Endemic to this region
Formica adamsi alpina Wheeler, W.M., 1909 (United States) Endemic to this region
Formica adamsi whymperi Wheeler, W.M., 1917 (Canada, United States) Endemic to this region
Formica aerata Francoeur, 1973 (United States) Endemic to this region
Formica altipetens Wheeler, W.M., 1913 (Canada, United States)
Formica archboldi Smith, M.R., 1944 (United States) Endemic to this region
Formica argentea Wheeler, W.M., 1912 (Canada, United States)
Formica aserva Forel, 1901 (Canada, United States) Endemic to this region
Formica aterrima Cresson, 1865 (United States) Endemic to this region
Formica biophilica Trager, 2007 (United States) Endemic to this region
Formica bradleyi Wheeler, W.M., 1913 (Canada, United States) Endemic to this region
Formica californica (Creighton, 1950) (United States) Endemic to this region
Formica calviceps Cole, 1954 (United States)
Formica canadensis Santschi, 1914 (Canada, United States) Endemic to this region
Formica ciliata Mayr, 1886 (United States) Endemic to this region
Formica coloradensis Creighton, 1940 (United States) Endemic to this region
Formica comata Wheeler, W.M., 1909 (United States) Endemic to this region
Formica creightoni Buren, 1968 (United States) Endemic to this region
Formica criniventris Wheeler, W.M., 1912 (United States) Endemic to this region
Formica curiosa Creighton, 1935 (Canada, United States) Endemic to this region
Formica dakotensis Emery, 1893 (Canada, United States) Endemic to this region
Formica densiventris Viereck, 1903 (Canada, United States)
Formica difficilis Emery, 1893 (United States) Endemic to this region
Formica dirksi Wing, 1949 (United States) Endemic to this region
Formica dolosa Buren, 1944 (United States) Endemic to this region
Formica emeryi Wheeler, W.M., 1913 (Canada, United States) Endemic to this region
Formica exsectoides Forel, 1886 (Canada, United States)
Formica ferocula Wheeler, W.M., 1913 (United States) Endemic to this region
Formica foreliana Wheeler, W.M., 1913 (United States)
Formica fossaceps Buren, 1942 (Canada, United States) Endemic to this region
Formica francoeuri Bolton, 1995 (United States)
Formica fusca Linnaeus, 1758 (Canada) (introduced)
Formica glacialis Wheeler, W.M., 1908 (Canada, United States) Endemic to this region
Formica gnava Buckley, 1866 (United States)
Formica gynocrates Snelling, R.R. & Buren, 1985 (United States) Endemic to this region
Formica hewitti Wheeler, W.M., 1917 (Canada, United States)
Formica impexa Wheeler, W.M., 1905 (Canada, United States) Endemic to this region
Formica incerta Buren, 1944 (United States) Endemic to this region
Formica indianensis Cole, 1940 (United States) Endemic to this region
Formica integra Nylander, 1856 (Canada, United States) Endemic to this region
Formica integroides Wheeler, W.M., 1913 (Canada, United States)
Formica knighti Buren, 1944 (United States) Endemic to this region
Formica laeviceps Creighton, 1940 (United States) Endemic to this region
Formica lasioides Emery, 1893 (Canada, United States)
Formica lepida Wheeler, W.M., 1913 (United States) Endemic to this region
Formica limata Wheeler, W.M., 1913 (Canada, United States)
Formica longipilosa Francoeur, 1973 (United States) Endemic to this region
Formica manni Wheeler, W.M., 1913 (United States) Endemic to this region
Formica microgyna Wheeler, W.M., 1903 (Canada, United States)
Formica microphthalma Francoeur, 1973 (United States) Endemic to this region
Formica moki Wheeler, W.M., 1906 (United States)
Formica montana Wheeler, W.M., 1910 (Canada, United States)
Formica morsei Wheeler, W.M., 1906 (United States) Endemic to this region
Formica mucescens Wheeler, W.M., 1913 (United States) Endemic to this region
Formica neoclara Emery, 1893 (Canada, United States)
Formica neogagates Viereck, 1903 (Canada, United States)
Formica neorufibarbis Emery, 1893 (Canada, United States)
Formica nepticula Wheeler, W.M., 1905 (United States) Endemic to this region
Formica nevadensis Wheeler, W.M., 1904 (United States) Endemic to this region
Formica obscuripes Forel, 1886 (Canada, United States) Endemic to this region
Formica obscuriventris Mayr, 1870 (Canada, United States) Endemic to this region
Formica obtusopilosa Emery, 1893 (Canada, United States)
Formica occulta Francoeur, 1973 (United States)
Formica opaciventris Emery, 1893 (Canada, United States) Endemic to this region
Formica oreas Wheeler, W.M., 1903 (Canada, United States) Endemic to this region
Formica oregonensis Cole, 1938 (United States) Endemic to this region
Formica pacifica Francoeur, 1973 (United States) Endemic to this region
Formica pallidefulva Latreille, 1802 (Canada, United States) Endemic to this region
Formica paralugubris Seifert, 1996 (Canada)
Formica pergandei Emery, 1893 (United States) Endemic to this region
Formica perpilosa Wheeler, W.M., 1913 (Canada, United States)
Formica planipilis Creighton, 1940 (Canada, United States) Endemic to this region
Formica podzolica Francoeur, 1973 (Canada, United States)
Formica postoculata Kennedy & Dennis, 1937 (United States) Endemic to this region
Formica prociliata Kennedy & Dennis, 1937 (United States) Endemic to this region
Formica propinqua Creighton, 1940 (United States) Endemic to this region
Formica puberula Emery, 1893 (United States) Endemic to this region
Formica querquetulana Kennedy & Dennis, 1937 (United States) Endemic to this region
Formica ravida Creighton, 1940 (Canada, United States) Endemic to this region
Formica reflexa Buren, 1942 (Canada, United States) Endemic to this region
Formica rubicunda Emery, 1893 (Canada, United States)
Formica scitula Wheeler, W.M., 1913 (United States) Endemic to this region
Formica sibylla Wheeler, W.M., 1913 (United States) Endemic to this region
Formica spatulata Buren, 1944 (United States) Endemic to this region
Formica subaenescens Emery, 1893 (Canada, United States)
Formica subelongata Francoeur, 1973 (United States) Endemic to this region
Formica subintegra Wheeler, W.M., 1908 (Canada, United States) Endemic to this region
Formica subnitens Creighton, 1940 (Canada, United States) Endemic to this region
Formica subpolita Mayr, 1886 (Canada, United States)
Formica subsericea Say, 1836 (United States) Endemic to this region
Formica talbotae Wilson, 1977 (United States) Endemic to this region
Formica transmontanis Francoeur, 1973 (Canada, United States) Endemic to this region
Formica ulkei Emery, 1893 (Canada, United States) Endemic to this region
Formica vinculans Wheeler, W.M., 1913 (United States) Endemic to this region
Formica wheeleri Creighton, 1935 (United States)
Formica xerophila Smith, M.R., 1939 (United States)

Formicoxenus

Formicoxenus chamberlini (Wheeler, W.M., 1904) (United States) Endemic to this region
Formicoxenus diversipilosus (Smith, M.R., 1939) (United States) Endemic to this region
Formicoxenus hirticornis (Emery, 1895) (Canada, United States) Endemic to this region
Formicoxenus provancheri (Emery, 1895) (Canada, United States) Endemic to this region
Formicoxenus quebecensis Francoeur, 1985 (Canada, United States) Endemic to this region

Fulakora

Fulakora orizabana (Brown, 1960) (United States)

Gnamptogenys

Gnamptogenys hartmani (Wheeler, W.M., 1915) (United States)

Harpagoxenus

Harpagoxenus canadensis Smith, M.R., 1939 (Canada, United States) Endemic to this region

Hypoponera

Hypoponera inexorata (Wheeler, W.M., 1903) (United States)
Hypoponera opaciceps (Mayr, 1887) (United States) (introduced)
Hypoponera opacior (Forel, 1893) (United States)
Hypoponera punctatissima (Roger, 1859) (Canada, United States) (introduced)
Hypoponera ragusai (Emery, 1894) (United States) (introduced)

Labidus

Labidus coecus (Latreille, 1802) (United States)

Lasius

Lasius americanus Emery, 1893 (Canada, United States)
Lasius aphidicola (Walsh, 1863) (Canada, United States)
Lasius arizonicus Wheeler, W.M., 1917 (United States)
Lasius atopus Cole, 1958 (United States) Endemic to this region
Lasius brevicornis Emery, 1893 (Canada, United States) Endemic to this region
Lasius bureni (Wing, 1968) (United States) Endemic to this region
Lasius californicus Wheeler, W.M., 1917 (United States)
Lasius claviger (Roger, 1862) (United States) Endemic to this region
Lasius colei (Wing, 1968) (United States) Endemic to this region
Lasius coloradensis Wheeler, W.M., 1917 (Canada, United States) Endemic to this region
Lasius creightoni (Wing, 1968) (United States) Endemic to this region
Lasius crypticus Wilson, 1955 (Canada, United States)
Lasius emarginatus (Olivier, 1792) (United States)
Lasius fallax Wilson, 1955 (Canada, United States) Endemic to this region
Lasius humilis Wheeler, W.M., 1917 (United States) Endemic to this region
Lasius interjectus Mayr, 1866 (United States) Endemic to this region
Lasius latipes (Walsh, 1863) (Canada, United States)
Lasius minutus Emery, 1893 (Canada, United States) Endemic to this region
Lasius murphyi Forel, 1901 (United States) Endemic to this region
Lasius nearcticus Wheeler, W.M., 1906 (Canada, United States) Endemic to this region
Lasius neoniger Emery, 1893 (Canada, United States)
Lasius nevadensis Cole, 1956 (United States) Endemic to this region
Lasius niger (Linnaeus, 1758) (Canada, United States) (introduced)
Lasius occidentalis Wheeler, W.M., 1909 (United States)
Lasius pallitarsis (Provancher, 1881) (Canada, United States)
Lasius plumopilosus Buren, 1941 (United States) Endemic to this region
Lasius pogonogynus Buren, 1950 (United States) Endemic to this region
Lasius ponderosae Schär, Talavera, Rana, Espadaler, Cover, Shattuck & Vila, 2022 (Canada, United States)
Lasius pubescens Buren, 1942 (United States) Endemic to this region
Lasius sitiens Wilson, 1955 (United States)
Lasius speculiventris Emery, 1893 (United States) Endemic to this region
Lasius subglaber Emery, 1893 (Canada, United States) Endemic to this region
Lasius subumbratus Viereck, 1903 (Canada, United States)
Lasius vestitus Wheeler, W.M., 1910 (Canada, United States) Endemic to this region
Lasius xerophilus Mackay, W.P. & Mackay, E.E., 1994 (United States) Endemic to this region

Leptanilloides

Leptanilloides chihuahuaensis MacGown, Schiefer & Branstetter, 2015 (United States) Endemic to this region

Leptogenys

Leptogenys elongata (Buckley, 1866) (United States)
Leptogenys manni Wheeler, W.M., 1923 (United States) Endemic to this region

Leptothorax

Leptothorax acervorum (Fabricius, 1793) (United States)
Leptothorax athabasca Buschinger & Schulz, 2008 (Canada) Endemic to this region
Leptothorax calderoni Creighton, 1950 (United States) Endemic to this region
Leptothorax canadensis Provancher, 1887 (Canada, United States)
Leptothorax crassipilis Wheeler, W.M., 1917 (United States)
Leptothorax faberi Buschinger, 1983 (Canada, United States) Endemic to this region
Leptothorax paraxenus Heinze & Alloway, 1992 (Canada) Endemic to this region
Leptothorax pocahontas (Buschinger, 1979) (Canada) Endemic to this region
Leptothorax retractus Francoeur, 1986 (Canada) Endemic to this region
Leptothorax sphagnicola Francoeur, 1986 (Canada) Endemic to this region
Leptothorax wilsoni Heinze, 1989 (Canada, United States) Endemic to this region

Linepithema

Linepithema humile (Mayr, 1868) (United States) (introduced)

Liometopum

Liometopum apiculatum Mayr, 1870 (United States)
Liometopum luctuosum Wheeler, W.M., 1905 (United States)
Liometopum occidentale Emery, 1895 (United States)

Manica

Manica bradleyi (Wheeler, W.M., 1909) (United States) Endemic to this region
Manica hunteri (Wheeler, W.M., 1914) (Canada, United States) Endemic to this region
Manica invidia Bolton, 1995 (Canada, United States) Endemic to this region

Monomorium

Monomorium cyaneum Wheeler, W.M., 1914 (United States)
Monomorium ebeninum Forel, 1891 (United States) (introduced)
Monomorium emarginatum DuBois, 1986 (United States) Endemic to this region
Monomorium ergatogyna Wheeler, W.M., 1904 (United States)
Monomorium floricola (Jerdon, 1851) (United States) (introduced)
Monomorium minimum (Buckley, 1867) (Canada, United States)
Monomorium pergandei (Emery, 1893) (United States) Endemic to this region
Monomorium pharaonis (Linnaeus, 1758) (Canada, United States) (introduced)
Monomorium talbotae DuBois, 1981 (United States) Endemic to this region
Monomorium trageri DuBois, 1986 (United States) Endemic to this region
Monomorium viridum Brown, 1943 (United States)

Mycetomoellerius

Mycetomoellerius jamaicensis (André, 1893) (United States)
Mycetomoellerius turrifex (Wheeler, W.M., 1903) (United States)

Mycetosoritis

Mycetosoritis hartmanni (Wheeler, W.M., 1907) (United States)

Myrmecina

Myrmecina americana Emery, 1895 (United States)
Myrmecina cooperi Deyrup, 2015 (United States) Endemic to this region
Myrmecina davisoni MacGown, 2023 (United States) Endemic to this region

Myrmecocystus

Myrmecocystus arenarius Snelling, R.R., 1982 (United States) Endemic to this region
Myrmecocystus christineae Snelling, R.R., 1982 (United States) Endemic to this region
Myrmecocystus colei Snelling, R.R., 1976 (United States) Endemic to this region
Myrmecocystus creightoni Snelling, R.R., 1971 (United States)
Myrmecocystus depilis Forel, 1901 (United States)
Myrmecocystus ewarti Snelling, R.R., 1971 (United States) Endemic to this region
Myrmecocystus flaviceps Wheeler, W.M., 1912 (United States)
Myrmecocystus hammettensis Cole, 1938 (United States)
Myrmecocystus kathjuli Snelling, R.R., 1976 (United States) Endemic to this region
Myrmecocystus kennedyi Snelling, R.R., 1969 (United States)
Myrmecocystus koso Snelling, R.R., 1976 (United States) Endemic to this region
Myrmecocystus lugubris Wheeler, W.M., 1909 (United States) Endemic to this region
Myrmecocystus melliger Forel, 1886 (United States)
Myrmecocystus mendax Wheeler, W.M., 1908 (United States)
Myrmecocystus mexicanus Wesmael, 1838 (United States)
Myrmecocystus mimicus Wheeler, W.M., 1908 (United States)
Myrmecocystus navajo Wheeler, W.M., 1908 (United States)
Myrmecocystus placodops Forel, 1908 (United States)
Myrmecocystus pyramicus Smith, M.R., 1951 (United States) Endemic to this region
Myrmecocystus romainei Snelling, R.R., 1975 (United States)
Myrmecocystus semirufus Emery, 1893 (United States)
Myrmecocystus tenuinodis Snelling, R.R., 1976 (United States)
Myrmecocystus testaceus Emery, 1893 (United States)
Myrmecocystus wheeleri Snelling, R.R., 1971 (United States)
Myrmecocystus yuma Wheeler, W.M., 1912 (United States)

Myrmica

Myrmica alaskensis Wheeler, W.M., 1917 (Canada, United States) Endemic to this region
Myrmica americana Weber, 1939 (Canada, United States) Endemic to this region
Myrmica brevispinosa Wheeler, W.M., 1917 (Canada, United States) Endemic to this region
Myrmica colax (Cole, 1957) (United States) Endemic to this region
Myrmica crassirugis Francoeur, 2007 (Canada, United States) Endemic to this region
Myrmica detritinodis Emery, 1921 (Canada, United States) Endemic to this region
Myrmica discontinua Weber, 1939 (United States) Endemic to this region
Myrmica fracticornis Forel, 1901 (Canada, United States) Endemic to this region
Myrmica glacialis Emery, 1921 (Canada, United States) Endemic to this region
Myrmica hamulata Weber, 1939 (United States) Endemic to this region
Myrmica incompleta Provancher, 1881 (Canada, United States) Endemic to this region
Myrmica lampra Francoeur, 1968 (Canada, United States) Endemic to this region
Myrmica latifrons Stärcke, 1927 (Canada, United States) Endemic to this region
Myrmica lobifrons Pergande, 1900 (Canada, United States) Endemic to this region
Myrmica monticola Creighton, 1950 (United States) Endemic to this region
Myrmica nearctica Weber, 1939 (Canada, United States) Endemic to this region
Myrmica pinetorum Wheeler, W.M., 1905 (United States) Endemic to this region
Myrmica punctinops Francoeur, 2007 (United States) Endemic to this region
Myrmica punctiventris Roger, 1863 (United States) Endemic to this region
Myrmica quebecensis Francoeur, 1981 (Canada) Endemic to this region
Myrmica rubra (Linnaeus, 1758) (Canada, United States) (introduced)
Myrmica rubra neolaevinodis Forel, 1901 (United States) Endemic to this region
Myrmica rugiventris (Smith, M.R., 1943) (United States) Endemic to this region
Myrmica scabrinodis Nylander, 1846 (United States) (introduced)
Myrmica semiparasitica Francoeur, 2007 (United States) Endemic to this region
Myrmica spatulata Smith, M.R., 1930 (United States) Endemic to this region
Myrmica specioides Bondroit, 1918 (United States) (introduced)
Myrmica striolagaster Cole, 1953 (United States)
Myrmica tahoensis Weber, 1948 (United States)
Myrmica trullicornis Buren, 1944 (United States) Endemic to this region
Myrmica wheeleri Weber, 1939 (United States) Endemic to this region
Myrmica wheelerorum Francoeur, 2007 (United States) Endemic to this region

Neivamyrmex

Neivamyrmex agilis Borgmeier, 1953 (United States)
Neivamyrmex andrei (Emery, 1901) (United States)
Neivamyrmex baylori Watkins, 1973 (United States) Endemic to this region
Neivamyrmex californicus (Mayr, 1870) (United States)
Neivamyrmex carolinensis (Emery, 1894) (United States)
Neivamyrmex fuscipennis (Smith, M.R., 1942) (United States)
Neivamyrmex graciellae (Mann, 1926) (United States)
Neivamyrmex halidaii (Shuckard, 1840) (United States)
Neivamyrmex harrisii (Haldeman, 1852) (United States)
Neivamyrmex kiowapache Snelling, G.C. & Snelling, R.R., 2007 (United States)
Neivamyrmex leonardi (Wheeler, W.M., 1915) (United States)
Neivamyrmex mandibularis (Smith, M.R., 1942) (United States)
Neivamyrmex melanocephalus (Emery, 1895) (United States)
Neivamyrmex melshaemeri (Haldeman, 1852) (United States)
Neivamyrmex microps Borgmeier, 1955 (United States) Endemic to this region
Neivamyrmex minor (Cresson, 1872) (United States)
Neivamyrmex mojave (Smith, M.R., 1943) (United States)
Neivamyrmex moseri Watkins, 1969 (United States)
Neivamyrmex ndeh Snelling, G.C. & Snelling, R.R., 2007 (United States) Endemic to this region
Neivamyrmex nigrescens (Cresson, 1872) (United States)
Neivamyrmex nyensis Watkins, 1977 (United States)
Neivamyrmex opacithorax (Emery, 1894) (United States)
Neivamyrmex pauxillus (Wheeler, W.M., 1903) (United States)
Neivamyrmex pilosus (Smith, F., 1858) (United States)
Neivamyrmex rugulosus Borgmeier, 1953 (United States)
Neivamyrmex swainsonii (Shuckard, 1840) (United States)
Neivamyrmex texanus Watkins, 1972 (United States)
Neivamyrmex wilsoni Snelling, G.C. & Snelling, R.R., 2007 (United States) Endemic to this region

Neoponera

Neoponera villosa (Fabricius, 1804) (United States)

Nesomyrmex

Nesomyrmex wilda (Smith, M.R., 1943) (United States)

Nomamyrmex

Nomamyrmex esenbeckii (Westwood, 1842) (United States)

Novomessor

Novomessor albisetosus (Mayr, 1886) (United States)
Novomessor cockerelli (André, 1893) (United States)

Nylanderia

Nylanderia arenivaga (Wheeler, W.M., 1905) (United States)
Nylanderia austroccidua (Trager, 1984) (United States)
Nylanderia bourbonica (Forel, 1886) (United States) (introduced)
Nylanderia bruesii (Wheeler, W.M., 1903) (United States)
Nylanderia concinna (Trager, 1984) (United States) Endemic to this region
Nylanderia deceptrix Messer, Cover & LaPolla, 2016 (United States) Endemic to this region
Nylanderia deyrupi Messer, Cover & Rabeling, 2020 (United States) Endemic to this region
Nylanderia faisonensis (Forel, 1922) (United States) Endemic to this region
Nylanderia flavipes (Smith, F., 1874) (United States)
Nylanderia fulva (Mayr, 1862) (Canada, United States) (introduced)
Nylanderia guatemalensis (Forel, 1885) (United States) (introduced)
Nylanderia hystrix (Trager, 1984) (United States)
Nylanderia magnella Kallal & LaPolla, 2012 (United States) Endemic to this region
Nylanderia parasitica Messer, Cover & Rabeling, 2020 (United States) Endemic to this region
Nylanderia parvula (Mayr, 1870) (United States) Endemic to this region
Nylanderia phantasma (Trager, 1984) (United States) Endemic to this region
Nylanderia pubens (Forel, 1893) (United States) (introduced)
Nylanderia querna Kallal & LaPolla, 2012 (United States) Endemic to this region
Nylanderia steinheili (Forel, 1893) (United States)
Nylanderia terricola (Buckley, 1866) (United States)
Nylanderia trageri Kallal & LaPolla, 2012 (United States) Endemic to this region
Nylanderia vividula (Nylander, 1846) (United States) (introduced)
Nylanderia wojciki (Trager, 1984) (United States) Endemic to this region

Ochetellus

Ochetellus glaber (Mayr, 1862) (United States) (introduced)

Odontomachus

Odontomachus brunneus (Patton, 1894) (United States)
Odontomachus clarus Roger, 1861 (United States)
Odontomachus desertorum Wheeler, W.M., 1915 (United States) Endemic to this region
Odontomachus haematodus (Linnaeus, 1758) (United States) (introduced)
Odontomachus relictus Deyrup & Cover, 2004 (United States) Endemic to this region
Odontomachus ruginodis Smith, M.R., 1937 (United States) (introduced)

Pachycondyla

Pachycondyla harpax (Fabricius, 1804) (United States)

Paratrechina

Paratrechina longicornis (Latreille, 1802) (United States) (introduced)

Pheidole

Pheidole absurda Forel, 1886 (United States)
Pheidole adrianoi Naves, 1985 (United States) Endemic to this region
Pheidole aurea Wilson, 2003 (United States) Endemic to this region
Pheidole barbata Wheeler, W.M., 1908 (United States)
Pheidole bicarinata Mayr, 1870 (United States) Endemic to this region
Pheidole bureni Wilson, 2003 (United States) Endemic to this region
Pheidole californica Mayr, 1870 (United States)
Pheidole carrolli Naves, 1985 (United States) Endemic to this region
Pheidole casta Wheeler, W.M., 1908 (United States) Endemic to this region
Pheidole cavigenis Wheeler, W.M., 1915 (United States)
Pheidole cerebrosior Wheeler, W.M., 1915 (United States)
Pheidole ceres Wheeler, W.M., 1904 (United States)
Pheidole clementensis Gregg, 1969 (United States)
Pheidole clydei Gregg, 1950 (United States)
Pheidole cockerelli Wheeler, W.M., 1908 (United States)
Pheidole constipata Wheeler, W.M., 1908 (United States) Endemic to this region
Pheidole crassicornis Emery, 1895 (United States)
Pheidole creightoni Gregg, 1955 (United States) Endemic to this region
Pheidole davisi Wheeler, W.M., 1905 (United States)
Pheidole dentata Mayr, 1886 (United States)
Pheidole dentigula Smith, M.R., 1927 (United States)
Pheidole desertorum Wheeler, W.M., 1906 (United States)
Pheidole diversipilosa Wheeler, W.M., 1908 (United States)
Pheidole elecebra (Wheeler, W.M., 1904) (United States) Endemic to this region
Pheidole fervens Smith, F., 1858 (United States)
Pheidole flavens Roger, 1863 (United States) (introduced)
Pheidole floridana Emery, 1895 (United States)
Pheidole furtiva Wilson, 2003 (United States) Endemic to this region
Pheidole gilvescens Creighton & Gregg, 1955 (United States)
Pheidole grundmanni Smith, M.R., 1953 (United States) Endemic to this region
Pheidole hoplitica Wilson, 2003 (United States)
Pheidole humeralis Wheeler, W.M., 1908 (United States) Endemic to this region
Pheidole hyatti Emery, 1895 (United States)
Pheidole indica Mayr, 1879 (United States)
Pheidole inquilina (Wheeler, W.M., 1903) (United States) Endemic to this region
Pheidole juniperae Wilson, 2003 (United States) Endemic to this region
Pheidole lamia Wheeler, W.M., 1901 (United States) Endemic to this region
Pheidole littoralis Cole, 1952 (United States) Endemic to this region
Pheidole macclendoni Wheeler, W.M., 1908 (United States) Endemic to this region
Pheidole marcidula Wheeler, W.M., 1908 (United States)
Pheidole megacephala (Fabricius, 1793) (United States) (introduced)
Pheidole mera Wilson, 2003 (United States)
Pheidole metallescens Emery, 1895 (United States) Endemic to this region
Pheidole micula Wheeler, W.M., 1915 (United States)
Pheidole militicida Wheeler, W.M., 1915 (United States)
Pheidole moerens Wheeler, W.M., 1908 (United States) (introduced)
Pheidole morrisii Forel, 1886 (United States) Endemic to this region
Pheidole nuculiceps Wheeler, W.M., 1908 (United States)
Pheidole obscurithorax Naves, 1985 (United States) (introduced)
Pheidole obtusospinosa Pergande, 1896 (United States)
Pheidole paiute Gregg, 1959 (United States) Endemic to this region
Pheidole pelor Wilson, 2003 (United States) Endemic to this region
Pheidole perpilosa Wilson, 2003 (United States) Endemic to this region
Pheidole pilifera (Roger, 1863) (United States)
Pheidole pilosior Wilson, 2003 (United States) Endemic to this region
Pheidole pinealis Wheeler, W.M., 1908 (United States)
Pheidole porcula Wheeler, W.M., 1908 (United States)
Pheidole portalensis Wilson, 2003 (United States)
Pheidole psammophila Creighton & Gregg, 1955 (United States)
Pheidole rhea Wheeler, W.M., 1908 (United States)
Pheidole rugulosa Gregg, 1959 (United States)
Pheidole sciara Cole, 1955 (United States)
Pheidole sciophila Wheeler, W.M., 1908 (United States)
Pheidole senex Gregg, 1952 (United States)
Pheidole sitiens Wilson, 2003 (United States) Endemic to this region
Pheidole soritis Wheeler, W.M., 1908 (United States)
Pheidole spadonia Wheeler, W.M., 1915 (United States)
Pheidole tepicana Pergande, 1896 (United States)
Pheidole tetra Creighton, 1950 (United States)
Pheidole texana Wheeler, W.M., 1903 (United States) Endemic to this region
Pheidole titanis Wheeler, W.M., 1903 (United States)
Pheidole tysoni Forel, 1901 (United States)
Pheidole vallicola Wheeler, W.M., 1915 (United States)
Pheidole virago Wheeler, W.M., 1915 (United States) Endemic to this region
Pheidole vistana Forel, 1914 (United States)
Pheidole wheelerorum Mackay, W.P., 1988 (United States) Endemic to this region
Pheidole xerophila Wheeler, W.M., 1908 (United States)
Pheidole yaqui Creighton & Gregg, 1955 (United States)

Platythyrea

Platythyrea punctata (Smith, F., 1858) (United States) (introduced)

Pogonomyrmex

Pogonomyrmex anergismus Cole, 1954 (United States)
Pogonomyrmex anzensis Cole, 1968 (United States) Endemic to this region
Pogonomyrmex apache Wheeler, W.M., 1902 (United States)
Pogonomyrmex badius (Latreille, 1802) (United States) Endemic to this region
Pogonomyrmex barbatus (Smith, F., 1858) (United States)
Pogonomyrmex bicolor Cole, 1968 (United States)
Pogonomyrmex bigbendensis Francke & Merickel, 1982 (United States)
Pogonomyrmex brevispinosus Cole, 1968 (United States) Endemic to this region
Pogonomyrmex californicus (Buckley, 1867) (United States)
Pogonomyrmex colei Snelling, R.R., 1982 (United States) Endemic to this region
Pogonomyrmex comanche Wheeler, W.M., 1902 (United States) Endemic to this region
Pogonomyrmex desertorum Wheeler, W.M., 1902 (United States)
Pogonomyrmex hoelldobleri Johnson, Overson & Moreau, 2013 (United States) Endemic to this region
Pogonomyrmex huachucanus Wheeler, W.M., 1914 (United States)
Pogonomyrmex imberbiculus Wheeler, W.M., 1902 (United States)
Pogonomyrmex magnacanthus Cole, 1968 (United States)
Pogonomyrmex maricopa Wheeler, W.M., 1914 (United States)
Pogonomyrmex mohavensis Johnson, 2009 (United States) Endemic to this region
Pogonomyrmex montanus Mackay, W.P., 1980 (United States)
Pogonomyrmex occidentalis (Cresson, 1865) (Canada, United States)
Pogonomyrmex pima Wheeler, W.M., 1909 (United States)
Pogonomyrmex rugosus Emery, 1895 (United States)
Pogonomyrmex salinus Olsen, 1934 (Canada, United States) Endemic to this region
Pogonomyrmex subdentatus Mayr, 1870 (United States) Endemic to this region
Pogonomyrmex subnitidus Emery, 1895 (United States)
Pogonomyrmex tenuispinus Forel, 1914 (United States)
Pogonomyrmex texanus Francke & Merickel, 1982 (United States)

Polyergus

Polyergus bicolor Wasmann, 1901 (Canada, United States) Endemic to this region
Polyergus breviceps Emery, 1893 (Canada, United States)
Polyergus longicornis Smith, M.R., 1947 (United States) Endemic to this region
Polyergus lucidus Mayr, 1870 (Canada, United States) Endemic to this region
Polyergus mexicanus Forel, 1899 (United States)
Polyergus montivagus Wheeler, W.M., 1915 (Canada, United States) Endemic to this region
Polyergus oligergus Trager, 2013 (United States) Endemic to this region
Polyergus ruber Trager, 2013 (United States) Endemic to this region
Polyergus sanwaldi Trager, 2013 (United States) Endemic to this region
Polyergus topoffi Trager, 2013 (United States)
Polyergus vinosus Trager, 2013 (United States)

Ponera

Ponera exotica Smith, M.R., 1962 (United States)
Ponera pennsylvanica Buckley, 1866 (United States)

Poneracantha

Poneracantha triangularis (Mayr, 1887) (United States) (introduced)

Prenolepis

Prenolepis imparis (Say, 1836) (United States)

Prionopelta

Prionopelta antillana Forel, 1909 (United States) (introduced)

Proceratium

Proceratium californicum Cook, 1953 (United States) Endemic to this region
Proceratium chickasaw De Andrade, 2003 (United States) Endemic to this region
Proceratium compitale Ward, 1988 (United States)
Proceratium crassicorne Emery, 1895 (United States) Endemic to this region
Proceratium creek De Andrade, 2003 (United States) Endemic to this region
Proceratium croceum (Roger, 1860) (United States) Endemic to this region
Proceratium pergandei (Emery, 1895) (United States) Endemic to this region
Proceratium silaceum Roger, 1863 (Canada, United States)

Pseudomyrmex

Pseudomyrmex apache Creighton, 1953 (United States)
Pseudomyrmex caeciliae (Forel, 1913) (United States)
Pseudomyrmex cubaensis (Forel, 1901) (United States) (introduced)
Pseudomyrmex ejectus (Smith, F., 1858) (United States)
Pseudomyrmex elongatulus (Dalla Torre, 1892) (United States) (introduced)
Pseudomyrmex elongatus (Mayr, 1870) (United States) (introduced)
Pseudomyrmex gracilis (Fabricius, 1804) (United States) (introduced)
Pseudomyrmex leptosus Ward, 1985 (United States) Endemic to this region
Pseudomyrmex pallidus (Smith, F., 1855) (United States)
Pseudomyrmex seminole Ward, 1985 (United States)
Pseudomyrmex simplex (Smith, F., 1877) (United States)

Pseudoponera

Pseudoponera stigma (Fabricius, 1804) (United States) (introduced)

Rogeria

Rogeria creightoni Snelling, R.R., 1973 (United States)
Rogeria foreli Emery, 1894 (United States)

Solenopsis

Solenopsis abdita Thompson, 1989 (United States)
Solenopsis amblychila Wheeler, W.M., 1915 (United States)
Solenopsis aurea Wheeler, W.M., 1906 (United States)
Solenopsis carolinensis Forel, 1901 (United States) Endemic to this region
Solenopsis corticalis Forel, 1881 (United States)
Solenopsis geminata (Fabricius, 1804) (Canada, United States) (introduced)
Solenopsis globularia (Smith, F., 1858) (United States)
Solenopsis impolita Moreno, Mackay & Pacheco, 2013 (United States) Endemic to this region
Solenopsis invicta Buren, 1972 (United States) (introduced)
Solenopsis krockowi Wheeler, W.M., 1908 (United States)
Solenopsis melina Pacheco & Mackay, 2013 (United States) Endemic to this region
Solenopsis molesta (Say, 1836) (Canada, United States)
Solenopsis nickersoni Thompson, 1982 (United States) Endemic to this region
Solenopsis ocellata Moreno, Mackay & Pacheco, 2013 (United States) Endemic to this region
Solenopsis pergandei Forel, 1901 (United States) Endemic to this region
Solenopsis phoretica Davis & Deyrup, 2006 (United States) Endemic to this region
Solenopsis picta Emery, 1895 (United States) Endemic to this region
Solenopsis pilosula Wheeler, W.M., 1908 (United States)
Solenopsis pulleni Pacheco, Mackay & Moreno, 2013 (United States) Endemic to this region
Solenopsis quadridentata Pacheco, Mackay & Moreno, 2013 (United States) Endemic to this region
Solenopsis richteri Forel, 1909 (United States)
Solenopsis rosella Kennedy, 1938 (Canada) Endemic to this region
Solenopsis salina Wheeler, W.M., 1908 (United States)
Solenopsis subterranea Mackay, W.P. & Vinson, 1989 (United States)
Solenopsis tennesseensis Smith, M.R., 1951 (United States)
Solenopsis texana Emery, 1895 (Canada, United States)
Solenopsis tonsa Thompson, 1989 (United States) Endemic to this region
Solenopsis validiuscula Emery, 1895 (United States)
Solenopsis whitfordi Mackay, Moreno & Pacheco, 2013 (United States) Endemic to this region
Solenopsis xyloni McCook, 1879 (United States)

Stenamma

Stenamma brevicorne (Mayr, 1886) (United States) Endemic to this region
Stenamma californicum Snelling, R.R., 1973 (United States)
Stenamma chiricahua Snelling, R.R., 1973 (United States) Endemic to this region
Stenamma diecki Emery, 1895 (Canada, United States)
Stenamma dyscheres Snelling, R.R., 1973 (United States) Endemic to this region
Stenamma exasperatum Snelling, R.R., 1973 (United States) Endemic to this region
Stenamma foveolocephalum Smith, M.R., 1930 (United States) Endemic to this region
Stenamma heathi Wheeler, W.M., 1915 (United States)
Stenamma huachucanum Smith, M.R., 1957 (United States)
Stenamma impar Forel, 1901 (United States) Endemic to this region
Stenamma meridionale Smith, M.R., 1957 (United States) Endemic to this region
Stenamma punctatoventre Snelling, R.R., 1973 (United States) Endemic to this region
Stenamma schmittii Wheeler, W.M., 1903 (United States) Endemic to this region
Stenamma sequoiarum Wheeler, W.M., 1917 (United States) Endemic to this region
Stenamma smithi Cole, 1966 (United States) Endemic to this region
Stenamma snellingi Bolton, 1995 (United States)
Stenamma wheelerorum Snelling, R.R., 1973 (United States) Endemic to this region

Stigmatomma

Stigmatomma oregonense Wheeler, W.M., 1915 (Canada, United States) Endemic to this region
Stigmatomma pallipes (Haldeman, 1844) (Canada, United States) Endemic to this region
Stigmatomma trigonignathum (Brown, 1949) (United States) Endemic to this region

Strumigenys

Strumigenys abdita Wesson, L.G. & Wesson, R.G., 1939 (United States) Endemic to this region
Strumigenys alberti Forel, 1893 (United States)
Strumigenys ananeotes Longino & Booher, 2019 (United States) Endemic to this region
Strumigenys angulata Smith, M.R., 1931 (United States) Endemic to this region
Strumigenys apalachicolensis (Deyrup & Lubertazzi, 2001) (United States) Endemic to this region
Strumigenys archboldi (Deyrup & Cover, 1998) (United States) Endemic to this region
Strumigenys arizonica (Ward, 1988) (United States)
Strumigenys bimarginata Wesson, L.G. & Wesson, R.G., 1939 (United States) Endemic to this region
Strumigenys boltoni (Deyrup, 2006) (United States) Endemic to this region
Strumigenys boneti Brown, 1959 (United States)
Strumigenys brevisetosa Smith, M.R., 1935 (United States) Endemic to this region
Strumigenys bunki (Brown, 1950) (United States) Endemic to this region
Strumigenys californica (Brown, 1950) (United States) Endemic to this region
Strumigenys carolinensis (Brown, 1964) (United States) Endemic to this region
Strumigenys chiricahua (Ward, 1988) (United States) Endemic to this region
Strumigenys cloydi (Pfitzer, 1951) (United States) Endemic to this region
Strumigenys clypeata Roger, 1863 (United States) Endemic to this region
Strumigenys collinsae Booher, 2021 (United States) Endemic to this region
Strumigenys creightoni Smith, M.R., 1931 (United States) Endemic to this region
Strumigenys dietrichi Smith, M.R., 1931 (United States)
Strumigenys eggersi Emery, 1890 (United States) (introduced)
Strumigenys emmae (Emery, 1890) (United States) (introduced)
Strumigenys epinotalis Weber, 1934 (United States) (introduced)
Strumigenys filirrhina (Brown, 1950) (United States) Endemic to this region
Strumigenys filitalpa (Brown, 1950) (United States) Endemic to this region
Strumigenys godeffroyi Mayr, 1866 (United States)
Strumigenys gundlachi (Roger, 1862) (United States) (introduced)
Strumigenys hexamera (Brown, 1958) (United States) (introduced)
Strumigenys hyalina (Bolton, 2000) (United States) Endemic to this region
Strumigenys inopina (Deyrup & Cover, 1998) (United States) Endemic to this region
Strumigenys laevinasis Smith, M.R., 1931 (United States) Endemic to this region
Strumigenys lanuginosa Wheeler, W.M., 1905 (United States) (introduced)
Strumigenys louisianae Roger, 1863 (United States)
Strumigenys lucky Booher, 2021 (United States) Endemic to this region
Strumigenys macgowni Booher, 2021 (United States) Endemic to this region
Strumigenys margaritae Forel, 1893 (United States) (introduced)
Strumigenys membranifera Emery, 1869 (United States) (introduced)
Strumigenys memorialis (Deyrup, 1998) (United States) Endemic to this region
Strumigenys mendezi Booher, 2021 (United States) Endemic to this region
Strumigenys metazytes (Bolton, 2000) (United States) Endemic to this region
Strumigenys missouriensis Smith, M.R., 1931 (United States) Endemic to this region
Strumigenys mixta Brown, 1953 (United States)
Strumigenys moreauviae Booher, 2021 (United States) Endemic to this region
Strumigenys nevermanni Brown, 1959 (United States)
Strumigenys ornata Mayr, 1887 (United States)
Strumigenys pergandei Emery, 1895 (Canada, United States)
Strumigenys pilinasis Forel, 1901 (United States) Endemic to this region
Strumigenys pulchella Emery, 1895 (Canada, United States) Endemic to this region
Strumigenys reflexa Wesson, L.G. & Wesson, R.G., 1939 (United States) Endemic to this region
Strumigenys reliquia (Ward, 1988) (United States) Endemic to this region
Strumigenys rogeri Emery, 1890 (Canada, United States) (introduced)
Strumigenys rohweri Smith, M.R., 1935 (United States) Endemic to this region
Strumigenys rostrata Emery, 1895 (United States) Endemic to this region
Strumigenys silvestrii Emery, 1906 (United States) (introduced)
Strumigenys subnuda (MacGown & Hill, 2010) (United States) Endemic to this region
Strumigenys subtilis Booher, 2021 (United States) Endemic to this region
Strumigenys superstes Booher & Uhey, 2020 (United States) Endemic to this region
Strumigenys talpa Weber, 1934 (United States) Endemic to this region
Strumigenys wrayi (Brown, 1950) (United States) Endemic to this region

Syllophopsis

Syllophopsis subcoeca (Emery, 1894) (United States)

Syscia

Syscia augustae (Wheeler, W.M., 1902) (United States)
Syscia madrensis Longino & Branstetter, 2021 (United States)
Syscia quisquilis Longino & Branstetter, 2021 (United States) Endemic to this region

Tapinoma

Tapinoma litorale Wheeler, W.M., 1905 (United States) (introduced)
Tapinoma melanocephalum (Fabricius, 1793) (Canada, United States) (introduced)
Tapinoma schreiberi Hamm, 2010 (United States) Endemic to this region
Tapinoma sessile (Say, 1836) (Canada, United States)

Technomyrmex

Technomyrmex difficilis Forel, 1892 (United States) (introduced)
Technomyrmex vitiensis Mann, 1921 (United States) (introduced)

Temnothorax

Temnothorax adustus (Mackay, W.P., 2000) (United States)
Temnothorax allardycei (Mann, 1920) (United States) (introduced)
Temnothorax ambiguus (Emery, 1895) (Canada, United States) Endemic to this region
Temnothorax americanus (Emery, 1895) (United States) Endemic to this region
Temnothorax anaphalantus Snelling, Borowiec & Prebus, 2014 (United States)
Temnothorax andersoni (Mackay, W.P., 2000) (United States)
Temnothorax andrei (Emery, 1895) (United States)
Temnothorax arboreus Snelling, Borowiec & Prebus, 2014 (United States) Endemic to this region
Temnothorax bestelmeyeri (Mackay, W.P., 2000) (United States) Endemic to this region
Temnothorax bradleyi (Wheeler, W.M., 1913) (United States) Endemic to this region
Temnothorax bristoli (Mackay, W.P., 2000) (United States)
Temnothorax caguatan Snelling, Borowiec & Prebus, 2014 (United States)
Temnothorax carinatus (Cole, 1957) (United States)
Temnothorax chandleri (Mackay, W.P., 2000) (United States) Endemic to this region
Temnothorax cokendolpheri (Mackay, W.P., 2000) (United States) Endemic to this region
Temnothorax coleenae (Mackay, W.P., 2000) (United States) Endemic to this region
Temnothorax curvispinosus (Mayr, 1866) (United States) Endemic to this region
Temnothorax duloticus (Wesson, L.G., 1937) (United States) Endemic to this region
Temnothorax emmae (Mackay, W.P., 2000) (United States)
Temnothorax fragosus (Mackay, W.P. & Buschinger, 2002) (Canada) Endemic to this region
Temnothorax furunculus (Wheeler, W.M., 1909) (United States) Endemic to this region
Temnothorax gallae (Smith, M.R., 1949) (United States) Endemic to this region
Temnothorax hispidus (Cole, 1957) (United States)
Temnothorax josephi (Mackay, W.P., 2000) (United States) Endemic to this region
Temnothorax liebi (Mackay, W.P., 2000) (United States) Endemic to this region
Temnothorax longispinosus (Roger, 1863) (Canada, United States)
Temnothorax minutissimus (Smith, M.R., 1942) (United States) Endemic to this region
Temnothorax misomoschus Prebus, 2021 (United States)
Temnothorax morongo Snelling, Borowiec & Prebus, 2014 (United States)
Temnothorax myrmiciformis Snelling, Borowiec & Prebus, 2014 (United States)
Temnothorax neomexicanus (Wheeler, W.M., 1903) (United States)
Temnothorax nevadensis (Wheeler, W.M., 1903) (United States)
Temnothorax nitens (Emery, 1895) (United States)
Temnothorax nuwuvi Snelling, Borowiec & Prebus, 2014 (United States) Endemic to this region
Temnothorax obliquicanthus (Cole, 1953) (United States)
Temnothorax obturator (Wheeler, W.M., 1903) (United States) Endemic to this region
Temnothorax oxynodis (Mackay, W.P., 2000) (United States) Endemic to this region
Temnothorax paiute Snelling, Borowiec & Prebus, 2014 (United States) Endemic to this region
Temnothorax palustris (Deyrup & Cover, 2004) (United States) Endemic to this region
Temnothorax pergandei (Emery, 1895) (United States)
Temnothorax pilagens Seifert, Kleeberg, Feldmeyer, Pamminger, Jongepier & Foitzik, 2014 (United States) Endemic to this region
Temnothorax politus (Smith, M.R., 1939) (United States)
Temnothorax pseudandrei Snelling, Borowiec & Prebus, 2014 (United States) Endemic to this region
Temnothorax quasimodo Snelling, Borowiec & Prebus, 2014 (United States) Endemic to this region
Temnothorax quercicola Prebus, 2021 (United States)
Temnothorax rudis (Wheeler, W.M., 1917) (United States) Endemic to this region
Temnothorax rugatulus (Emery, 1895) (Canada, United States)
Temnothorax rugosus (Mackay, W.P., 2000) (United States)
Temnothorax schaumii (Roger, 1863) (United States) Endemic to this region
Temnothorax schmittii (Wheeler, W.M., 1903) (United States)
Temnothorax silvestrii (Santschi, 1911) (United States)
Temnothorax smithi (Baroni Urbani, 1978) (United States) Endemic to this region
Temnothorax stenotyle (Cole, 1956) (United States) Endemic to this region
Temnothorax subditivus (Wheeler, W.M., 1903) (United States)
Temnothorax terrigena (Wheeler, W.M., 1903) (United States)
Temnothorax texanus (Wheeler, W.M., 1903) (United States)
Temnothorax torrei (Aguayo, 1931) (United States)
Temnothorax tricarinatus (Emery, 1895) (United States) Endemic to this region
Temnothorax tuscaloosae (Wilson, 1951) (United States) Endemic to this region
Temnothorax wardi Snelling, Borowiec & Prebus, 2014 (United States) Endemic to this region
Temnothorax whitfordi (Mackay, W.P., 2000) (United States)

Tetramorium

Tetramorium atratulum (Schenck, 1852) (United States) (introduced)
Tetramorium bicarinatum (Nylander, 1846) (United States) (introduced)
Tetramorium caldarium (Roger, 1857) (United States) (introduced)
Tetramorium guineense (Bernard, 1953) (Canada) (introduced)
Tetramorium hispidum (Wheeler, W.M., 1915) (United States)
Tetramorium immigrans Santschi, 1927 (United States) (introduced)
Tetramorium insolens (Smith, F., 1861) (United States)
Tetramorium lanuginosum Mayr, 1870 (United States) (introduced)
Tetramorium pacificum Mayr, 1870 (United States) (introduced)
Tetramorium simillimum (Smith, F., 1851) (Canada, United States) (introduced)
Tetramorium spinosum (Pergande, 1896) (United States)
Tetramorium tsushimae Emery, 1925 (United States) (introduced)

Trachymyrmex

Trachymyrmex arizonensis (Wheeler, W.M., 1907) (United States)
Trachymyrmex carinatus Mackay, W.P. & Mackay, E.E., 1997 (United States)
Trachymyrmex desertorum (Wheeler, W.M., 1911) (United States)
Trachymyrmex nogalensis Byars, 1951 (United States) Endemic to this region
Trachymyrmex pomonae Rabeling & Cover, 2007 (United States) Endemic to this region
Trachymyrmex septentrionalis (McCook, 1881) (United States)
Trachymyrmex smithi Buren, 1944 (United States)

Trichomyrmex

Trichomyrmex destructor (Jerdon, 1851) (United States) (introduced)

Veromessor

Veromessor andrei (Mayr, 1886) (United States)
Veromessor chamberlini (Wheeler, W.M., 1915) (United States) Endemic to this region
Veromessor chicoensis Smith, M.R., 1956 (United States) Endemic to this region
Veromessor lariversi (Smith, M.R., 1951) (United States) Endemic to this region
Veromessor lobognathus (Andrews, 1916) (United States) Endemic to this region
Veromessor pergandei (Mayr, 1886) (United States)
Veromessor pseudolariversi Johnson, Borowiec, Snelling & Cole, 2022 (United States) Endemic to this region
Veromessor smithi Cole, 1963 (United States) Endemic to this region
Veromessor stoddardi (Emery, 1895) (United States)

Vollenhovia

Vollenhovia emeryi Wheeler, W.M., 1906 (United States) (introduced)
Vollenhovia nipponica Kinomura & Yamauchi, 1992 (United States) (introduced)

Wasmannia

Wasmannia auropunctata (Roger, 1863) (Canada, United States) (introduced)

Xenomyrmex

Xenomyrmex floridanus Emery, 1895 (United States)