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Distribution path and Subregions of USA (More Checklists)
Path: Continents - America - North America - USA
Subregions: Alabama (Florence-Muscle Shoals, Huntsville, Mobile, Tuscaloosa), Alaska (Alaska North Slope, Southeast Alaska), Arizona (Coconino, Graham, La Paz, Yuma), Arkansas, California (Alameda County, Alpine County, Calaveras County, El Dorado County, Fresno County, Imperial County, Inyo County, Kern County, Los Angeles County, Marin County, Mariposa County, Mendocino County, Monterey County, Napa County, Placer County, Riverside County, San Benito County, San Bernardino County, San Diego County, San Mateo County, Santa Barbara County, Santa Clara County, Santa Cruz County, Shasta County, Siskiyou County, Sonoma County, South California, Stanislaus County, Tulare County, Ventura County, Yolo County), Colorado (Arapahoe County, Denver, El Paso County, Larimer County, Mesa County, Montezuma County, Pueblo County, Teller County, Weld County, Yuma County), Connecticut, Delaware, East USA, Florida (Alachua County, Brevard County, Citrus County, Glades County, Highlands County, Indian River County, Leon County, Miami-Dade County, Palm Beach County, Volusia County), Idaho (Bear Lake County), Illinois (Vermilion County), Indiana, Iowa (Story County), Kansas (Edwards County, Riley County, Wellington Formation), Kentucky (Barren County, Bell County, Edmonson County, Hart County), Lake Erie Islands (Green Island), Louisiana (Cameron Parish), Maine, Maryland (Baltimore), Massachusetts (Barnstable County), Michigan (Allegan County, Dickinson County, Ingham County, Kalamazoo County, Keweenaw County, Osceola County), Minnesota (Pope County), Mississippi, Missouri (Dade County, Stone County), Montana (Liberty County, Ravalli County), Nebraska (Banner County, Cheyenne County, Hall County), Nevada (Carson City, Nye County, Washoe County, White Pine County), New Hampshire (Grafton County, Hillsborough County), New Jersey, New Mexico (Bernalillo County, Chaves County, Cibola County, Doña Ana County, Hidalgo County, Luna County, Otero County, San Miguel County, Sandoval County, Santa Fe County, Socorro County, Torrance County), New York (Livingston County, Tompkins County), North Carolina (Carteret County, Graham County, Martin County, Yancey County), North Dakota (Eddy County), Northeast USA, Ohio (Belmont County, Champaign County, Ross County), Oklahoma (Adair County, Kiowa County), Oregon (Clatsop County, Coos County, Curry County, Deschutes County, Harney County, Josephine County, Lane County, Multnomah County, Wasco County), Pennsylvania (Cameron County, Philadelphia County), Rhode Island, South Carolina, South Dakota (Pennington County), South USA, Southeast USA, Southwest USA, Tennessee (Bledsoe County, Blount County, Claiborne County, Grundy County, Haywood County, Lake County, Lawrence County, Overton County, Perry County, Pickett County, Van Buren County, Williamson County), Texas (Bexar County, Brazos County, Brewster County, Comal County, Coryell County, Culberson County, Fannin County, Gillespie County, Hays County, Jeff Davis County, Kerr County, Kinney County, Kleberg County, La Salle County, Llano County, Maverick County, Presidio County, Starr County, Sutton County, Travis County, Uvalde County, Val Verde County, Victoria County, Webb County), Utah (Box Elder County, Cache County, Grand County, Kane County, Rich County, Salt Lake County, Sevier County, Uintah County, Utah County), Vermont, Virginia (Augusta County, Bath County, Charlotte County, Cumberland County, Fairfax County, Lee County, Madison County, Middlesex County, Northampton County, Orange County, Page County, Scott County, Shenandoah County, Tazewell County, Warren County), Washington (Benton County, Franklin County, Garfield County, Puget Sound, San Juan County, Thurston County), West USA (Green River Formation), West Virginia (Greenbrier County, Harrison County, Marion County, Marshall County, Mason County, Mineral County, Monongalia County, Morgan County, Putnam County, Roane County, Tucker County, Wayne County), Wisconsin (Adams County, Clark County, Columbia County, Crawford County, Douglas county, Grant County, Jackson County, Jefferson County, Monroe County, Pierce County, Polk County, Washington County, Winnebago County), Wyoming (Albany County, Carbon County, Fremont County, Lincoln County, Park County)
Taxonomy for Arachnida (Arachnids) in USA
Class
USA
Arachnida (Lamarck, 1801) (Arachnids) - Systematics
 470 families, 2040 genera, 9540 species
Site
Tree
Show Info
Families1.063    worldwide
Genera15.295    worldwide
Species143.413    worldwide
Common namesArachnids
German namesSpinnentiere
Dutch namesSpinachtigen
Danish namesSpindlere
Finnish namesHämähäkkieläimet
Norwegian namesEdderkoppdyr
Swedish namesSpindeldjur
Spanish namesArácnido
French namesArachnides
Portuguese namesAracnídeo
AuthorLamarck, 1801
Distribution
Continents:

Eurasia (Asia, Europe, Russia, Caucasus, Kaukasia)

America (North America, South America, Central America, Caribbean)

Africa (East Africa, Southern Africa, Central Africa, North Africa, West Africa)

Oceania (Australasia, Polynesia, Melanesia, Micronesia)

Antarctica (Antarctic, Subantarctic Islands, Antarctic Islands)


Ecozones:

Palaearctic (West Palaearctic, South Palaearctic, North Palaearctic)

Nearctic, Afrotropical, Neotropical, Indo-Australian region (Oriental)

Holarctic


Fossils:

Cenozoic (Paleogene, Neogene, Quaternary)

Paleozoic (Cambrian, Permian, Ordovician, Carboniferous, Silurian, Devonian)

Mesozoic (Cretaceous, Jurassic, Triassic)


World Oceans:

Pacific Ocean (South Pacific, Pacific Islands, North Pacific, East Pacific, West Pacific, Bering Sea)

Atlantic Ocean (British overseas territory Atlantic, Mediterranean Sea, South Georgia and the South Sandwich Islands, North Sea)

Indian Ocean (Bay of Bengal, Southeast Indian Ocean)


Countries
Checklists
Afghanistan, Albania, Algeria, Andorra, Angola, Antigua and Barbuda, Argentina, Armenia, Australia, Austria, Azerbaijan, Bahamas, Bahrain, Bangladesh, Barbados, Belarus, Belgium, Belize, Benin, Bhutan, Bolivia, Bosnia and Herzegovina, Botswana, Brazil, Brunei, Bulgaria, Burkina Faso, Burundi, Cambodia, Cameroon, Canada, Cape Verde, Central African Republic, Chad, Chile, China, Colombia, Comoros, Cook Islands, Costa Rica, Croatia, Cuba, Cyprus, Czech Republic, Democratic Republic of the Congo, Denmark, Djibouti, Dominica, Dominican Republic, East Timor, Ecuador, Egypt, El Salvador, Equatorial Guinea, Eritrea, Estonia, Ethiopia, Fiji, Finland, France, Gabon, Gambia, Georgia, Germany, Ghana, Greece, Grenada, Guatemala, Guinea, Guinea-Bissau, Guyana, Haiti, Honduras, Hungary, Iceland, India, Indonesia, Iran, Iraq, Ireland, Israel, Italy, Ivory Coast, Jamaica, Japan, Jordan, Kazakhstan, Kenya, Kiribati, Kuwait, Kyrgyzstan, Laos, Latvia, Lebanon, Lesotho, Liberia, Libya, Liechtenstein, Lithuania, Luxembourg, Macedonia, Madagascar, Malawi, Malaysia, Maldives, Mali, Malta, Marshall Islands, Mauritania, Mauritius, Mexico, Micronesia, Moldova, Monaco, Mongolia, Montenegro, Morocco, Mozambique, Myanmar, Namibia, Nauru, Nepal, Netherlands, New Zealand, Nicaragua, Niger, Nigeria, Niue, North Korea, Norway, Oman, Pakistan, Palau, Palestine, Panama, Papua New Guinea, Paraguay, Peru, Philippines, Poland, Portugal, Qatar, Republic of the Congo, Romania, Russia, Rwanda, São Tomé and Príncipe, Saint Kitts and Nevis, Saint Lucia, Saint Vincent and the Grenadines, Samoa, San Marino, Saudi Arabia, Senegal, Serbia, Seychelles, Sierra Leone, Singapore, Slovakia, Slovenia, Solomon Islands, Somalia, Somaliland, South Korea, South Sudan, Spain, Sri Lanka, Sudan, Suriname, Swaziland, Sweden, Switzerland, Syria, Taiwan, Tajikistan, Tanzania, Thailand, Togo, Tonga, Trinidad and Tobago, Tunisia, Turkey, Turkmenistan, Tuvalu, USA, Uganda, Ukraine, United Arab Emirates, United Kingdom, Uruguay, Uzbekistan, Vanuatu, Vatican City, Venezuela, Vietnam, Yemen, Zambia, Zimbabwe
Distr. infoWorldwide
Links and ReferencesArachnida in bie.ala.org.au
Arachnida in biolcoll.utu.fi
Arachnida in bug.tamu.edu
Arachnida in wiki.spinnen-forum.de
Arachnida in darwinfoundation.org
Arachnida in faunaeur.org
Arachnida in itis.gov
Arachnida in spiderling.de
Arachnida in wsc.nmbe.ch
Arachnida in dyntaxa.se
Subclass
USA
    Dromopoda (Shultz, 1990)
     74 families, 268 genera, 1268 species
Subclass
USA
    Micrura (Ehrenberg, 1831)
     392 families, 1722 genera, 8197 species
Subclass
USA
    Tetrapulmonata (Schultz, 1990)
     0 species
Order
USA
    Phalangiotarbi (Haase, 1890) -> Phalangiotarbida
     4 families, 12 genera, 16 species

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Family overview for Arachnida (Arachnids) in USA
Acalyptonotidae (Walter, 1911) - 1 Species
Acanthoscorpionidae (Kjellesvig-waering, 1986) - 1 Species
Acaridae (Latreille, 1802) - 37 Species
Acarophenacidae (Cross, 1965) - 5 Species
Achipteriidae (Thor, 1929) - 6 Species
Actinopodidae (Simon, 1892) - 1 SpeciesMouse Spiders
Adamystidae (Cunliffe, 1957) - 2 Species
Agelenidae (C. L. Koch, 1837) - 97 SpeciesAraneomorph funnel-web spiders
Algophagidae (Fain, 1974) - 5 Species
Alicorhagiidae (Grandjean, 1939) - 1 Species
Alloptidae (Gaud, 1957) - 4 Species
Alycidae (Canestrini & Fanzago, 1877) - 2 Species
Amaurobiidae (Thorell, 1870) - 115 SpeciesTangled nest spiders
Amblyommidae (Banks, 1907) - 44 Species
Ameridae (Grandjean, 1965) - 7 Species
Ameronothridae (Willmann, 1931) - 5 Species
Ameroseiidae (Evans In Hughs, 1961) - 5 Species
Ametroproctidae (Subías, 2004) - 1 Species
Ammotrechidae (Roewer, 1934) - 20 SpeciesSand runner
Amphinectidae (Forster & Wilton, 1973) - 1 SpeciesForest Hunters
Analgidae (Trouessart & Mégnin, 1884) - 3 SpeciesFeather mites
Anapidae (Simon, 1895) - 2 SpeciesTiny Orbweavers
Anisitsiellidae (Koenike, 1910) - 5 Species
Antennophoridae (Berlese, 1892) - 1 Species
Anthracomartidae (Haase, 1890) - 2 Species
Anthracosironidae (Pocock, 1903) - 1 Species
Anthracotarbidae (Kjellesvig-waering, 1969) - 1 Species
Antrodiaetidae (Gertsch, 1940) - 36 SpeciesFolding trapdoor spiders
Anyphaenidae (Bertkau, 1878) - 40 SpeciesAnyphaenid sac spiders
Anystidae (Oudemans, 1936) - 4 SpeciesWhirligig Mites
Aphantomartidae (Petrunkevitch, 1945) -> Trigonomartidae - 1 Species
Apheviderulicidae (Gerecke, Smith & Cook, 1999) - 1 Species
Apionacaridae (Gaud & Atyeo, 1977) - 1 Species
Araneidae (Simon, 1895) - 240 SpeciesOrb-weaver spiders
Architarbidae (Karsch, 1882) - 13 Species
Arctacaridae (Evans, 1955) - 2 Species
Arenohydracaridae (Cook, 1974) - 1 Species
Argasidae (C. L. Koch, 1844) - 46 SpeciesSoft ticks
Arrenuridae (Thor, 1900) - 91 Species
Arthrolycosidae (Fritsch, 1904) - 2 Species
Arthromygalidae (Petrunkevitch, 1923) - 1 Species
Ascidae (Oudemans, 1905) - 28 Species
Ascouracaridae (Gaud & Atyeo, 1976) - 2 Species
Astegistidae (Balogh, 1961) - 1 Species
Atemnidae (Chamberlin, 1931) - 6 Species
Athienemanniidae (Viets, 1922) - 5 Species
Atopomelidae (Fain, 1972) - 2 Species
Aturidae (Thor, 1900) - 80 Species
Atypidae (Thorell, 1870) - 8 SpeciesPurse web spiders
Audycoptidae (Lavoipierre, 1964) -> Rhyncoptidae - 1 Species
Autognetidae (Grandjean, 1960) - 1 Species
Avenzoariidae (Oudemans, 1905) - 10 Species
Banksinomidae (Kunst, 1971) - 3 Species
Barbutiidae (Robaux, 1975) - 1 Species
Bdellidae (Dugès, 1834) - 14 SpeciesSnout Mites
Belbidae (Willmann, 1931) - 2 Species
Belbodamaeidae (Bulanova-zachvatkina, 1967) -> Damaeidae - 1 Species
Blattisociidae (Garman, 1948) - 14 Species
Bochicidae (Chamberlin, 1930) - 1 Species
Bogatiidae (Motas & Tanasachi, 1948) - 1 Species
Brachychthoniidae (Thor, 1934) - 13 Species
Branchioscorpionidae (Kjellesvig-waering, 1986) - 1 Species
Buthidae (C. L. Koch, 1837) - 19 SpeciesBark scorpions
Caddidae (Banks, 1892) - 3 Species
Caeculidae (Berlese, 1883) - 1 Species
Calcitronidae (Petrunkevitch, 1945) - 1 Species
Caleremaeidae (Grandjean, 1965) - 3 Species
Caligonellidae (Grandjean, 1944) - 8 Species
Camerobiidae (Southcott, 1957) - 27 Species
Camisiidae (Oudemans, 1900) - 17 Species
Canestriniidae (Berlese, 1884) - 0 Species
Caponiidae (Simon, 1890) - 10 SpeciesTwo-Eyed-Spiders
Caraboacaridae (Mahunka, 1970) - 1 Species
Carabodidae (Koch, 1837) - 29 Species
Carpoglyphidae (Oudemans, 1923) - 2 SpeciesDriedfruit mites
Celaenopsidae (Berlese, 1892) - 3 Species
Cepheidae (Berlese, 1896) - 5 Species
Ceratolasmatidae (Shear, 1986) - 10 Species
Ceratoppiidae (Kunst, 1971) - 3 Species
Ceratozetidae (Jacot, 1925) - 31 Species
Cercomegistidae (Trägårdh, 1937) - 1 Species
Ceresellidae (P. G. Pavlitshenko, 1993) - 1 Species
Ceromidae (Purcell, 1903) - 1 Species
Chactidae (Reginald Innes Pocock, 1893) - 1 SpeciesFatclaw scorpions
Chaetodactylidae (Zakhvatkin, 1941) - 2 Species
Chamobatidae (Thor, 1937) - 3 Species
Chappuisididae (Motas & Tanasachi, 1946) - 6 Species
Chapuisididae - 5 Species
Cheiridiidae (Hansen, 1893) - 17 Species
Cheliferidae (Risso, 1826) - 53 Species
Chernetidae (Menge, 1855) - 124 Species
Cheylabididae (Gaud, 1983) - 1 Species
Cheyletidae (Leach, 1815) - 68 Species
Chirodiscidae (Trouessart, 1892) - 1 Species
Chortoglyphidae (Berlese, 1897) - 3 Species
Chthoniidae (Daday, 1888) - 153 Species
Cithaeronidae (Simon, 1893) - 1 SpeciesCithaeronid spiders
Cloacaridae (Camin, Moss, Oliver & Singer, 1967) - 1 Species
Clubionidae (Wagner, 1887) - 14 SpeciesSac spiders
Corinnidae (Karsch, 1880) - 130 SpeciesDark sac spiders
Cosmetidae (C. L. Koch, 1839) - 6 Species
Cosmochthoniidae (Grandjean, 1946) - 8 Species
Crotalomorphidae (Lindquist & Krantz, 2002) - 1 Species
Cryptognathidae (Luxton, 1973) - 14 Species
Ctenacaridae (Grandjean, 1954) - 1 Species
Ctenidae (Keyserling, 1877) - 9 SpeciesTropical wolf spiders
Ctenizidae (Thorell, 1887) - 15 SpeciesCork-lid trapdoor spiders
Cunaxidae (Thor, 1902) - 15 SpeciesPredatory Mites
Curculioididae (Cockerell, 1916) - 6 Species
Cybaeidae (Banks, 1892) - 50 SpeciesWater spiders
Cyrtaucheniidae (Simon, 1892) - 64 SpeciesWafer trapdoor spiders
Damaeidae (Berlese, 1896) - 29 Species
Dasythyreidae (Walter & Gerson, 1998) - 2 Species
Deinopidae (C. L. Koch, 1850) - 1 SpeciesNet-casting spiders
Demodecidae (Nicolet, 1855) - 18 SpeciesFollicle mites
Dermanyssidae (Kolenati, 1859) - 10 Species
Dermationidae (Fain, 1965) - 1 Species
Dermoglyphidae (Mégnin & Trouessart, 1884) - 2 Species
Desidae (Pocock, 1895) - 2 SpeciesIntertidal spiders
Devonacaridae (Norton, 1988) - 1 Species
Diarthrophallidae (Trägårdh, 1946) - 1 Species
Dictynidae (O. P-cambridge, 1871) - 304 SpeciesDictynid spiders
Digamasellidae (Evans, 1957) - 20 Species
Diguetidae (F. O. Pickard-cambridge, 1899) - 7 SpeciesConeweb spiders
Dinychidae (Berlese, 1916) - 2 Species
Diplogyniidae (Trägårdh, 1941) - 1 Species
Dipluridae (Simon, 1889) - 5 SpeciesFunnel-web tarantulas
Diptilomiopidae (Boczek, 1964) - 7 Species
Dolichocybidae (Mahunka, 1970) - 1 Species
Dracochelidae (Schawaller, Shear & Bonamo, 1991) - 1 Species
Dysderidae (C. L. Koch, 1837) - 6 SpeciesWoodlouse hunter spiders
Elliptochthoniidae (Norton, 1975) - 1 Species
Entonyssidae (Ewing, 1922) - 1 Species
Eophrynidae (Karsch, 1882) - 6 Species
Eoscorpiidae (Scudder, 1884) - 5 Species
Epidermoptidae (Trouessart, 1892) - 8 Species
Epilohmanniidae (Oudemans, 1923) - 2 Species
Eremaeidae (Oudemans, 1900) - 29 Species
Eremobatidae (Kraepelin, 1899) - 175 Species
Eremulidae (Grandjean, 1965) - 1 Species
Ereynetidae (Schrank, 1776) - 9 Species
Eriophyidae (Nalepa, 1898) - 109 SpeciesGall mites
Erythraeidae (Oudemans, 1902) - 28 Species
Euglycyphagidae (Fain & Philips, 1977) - 2 Species
Eukoeneniidae (Condé, 1965) - 2 Species
Eulohmanniidae (Grandjean, 1931) - 1 Species
Eupalopsellidae (Willmann, 1952) - 3 Species
Euphthiracaridae (Jacot, 1930) - 6 Species
Eupodidae (Strandtmann, 1967) - 6 SpeciesEupodid mites
Euzerconidae (Trägårdh, 1938) - 1 Species
Eviphididae (Berlese, 1913) - 5 Species
Eylaidae (Leach, 1815) - 19 Species
Falculiferidae (Oudemans, 1905) - 1 Species
Fedrizziidae (Trägårdh, 1937) - 1 Species
Feltriidae (Viets, 1926) - 29 Species
Filistatidae (Ausserer, 1867) - 9 SpeciesCrevice weavers
Freyanidae (Dubinin, 1953) - 2 Species
Frontipodopsidae (Viets, 1931) - 2 Species
Gabuciniidae (Gaud & Atyeo, 1975) - 2 Species
Galeodidae (Sundevall, 1833) - 2 Species
Galumnidae (Jacot, 1925) - 9 Species
Garnettiidae (Dubinin, 1962) - 1 Species
Garypidae (Simon, 1879) - 5 Species
Garypinidae (Daday, 1888) - 17 Species
Gastronyssidae (Fain, 1956) - 1 Species
Gaudiellidae (Atyeo, Baker & Delfinado, 1974) - 1 Species
Gaudoglyphidae (W.a. Bruce & Johnston, 1976) -> Dermoglyphidae - 1 Species
Geogarypidae (Chamberlin, 1930) - 5 Species
Glycyphagidae (De Geer, 1778) - 29 Species
Gnaphosidae (Pocock, 1898) - 323 SpeciesFlat-bellied ground spiders
Gonyleptidae (Sundevall, 1833) - 1 Species
Guanolichidae (Fain, 1968) - 1 Species
Gymnodamaeidae (Grandjean, 1954) - 13 Species
Hahniidae (Bertkau, 1878) - 61 SpeciesDwarf sheet spiders
Halacaridae (Murray, 1877) - 42 Species
Halarachnidae (Oudemans, 1906) - 7 Species
Halolaelapidae (Karg, 1965) - 4 Species
Haplochthoniidae (Van Der Hammen, 1959) - 1 Species
Haplozetidae (Grandjean, 1936) - 4 Species
Harpyrhynchidae (Dubinin, 1957) - 7 Species
Hemisarcoptidae (Oudemans, 1904) - 2 Species
Hermanniidae (Sellnick, 1928) - 6 Species
Hersiliidae (Thorell, 1870) - 3 SpeciesTree trunk spiders
Heterocheylidae (Trägårdh, 1950) - 1 Species
Heterotarbidae (Petrunkevitch, 1913) - 1 Species
Heterozetidae (Kunst, 1971) - 1 Species
Hexathelidae (Simon, 1892) - 1 SpeciesVenomous funnel-web tarantulas
Histiostomatidae (Berlese, 1897) - 20 Species
Homalonychidae (Simon, 1893) - 2 SpeciesDusty desert spiders
Homocaligidae (Wood, 1969) - 1 Species
Hubbardiidae (Cook, 1899) - 16 SpeciesHubbardiid shorttailed whipscorpions
Humerobatidae (Grandjean, 1970) - 3 Species
Hyadesiidae (Halbert, 1915) - 9 Species
Hydrachnidae (Leach, 1815) - 20 Species
Hydrodromidae (Viets, 1936) - 1 Species
Hydrovolziidae (Thor, 1905) - 2 Species
Hydrozetidae (Grandjean, 1954) - 1 Species
Hydryphantidae (Piersig, 1896) - 25 Species
Hygrobatidae (Koch, 1842) - 22 Species
Hypochilidae (Marx, 1888) - 10 SpeciesLampshade spiders
Hypochthoniidae (Berlese, 1910) - 4 Species
Hypoderatidae (Murray, 1877) - 7 Species
Hypoderidae (Murray, 1877) - 6 Species
Ideoroncidae (Chamberlin, 1930) - 7 Species
Idiopidae (Simon, 1892) - 4 SpeciesTrapdoor Spiders
Iolinidae (Pritchard, 1956) - 3 Species
Ischyropsalididae (Simon, 1879) - 2 Species
Isobuthidae (Petrunkevitch, 1913) - 1 Species
Iuridae (Thorell, 1876) - 6 SpeciesLargetooth scorpions
Ixodidae (C. L. Koch, 1844) - 45 SpeciesHard ticks
Ixodorhynchidae (Ewing, 1923) - 2 Species
Johnstonianidae (Thor, 1935) - 1 Species
Knemidokoptidae (Lavoipierre & Griffiths, 1951) - 3 Species
Kodiakellidae (Hammer, 1967) - 1 Species
Kramerellidae (Gaud & Mouchet, 1961) - 1 Species
Krendowskiidae (Viets, 1926) - 3 Species
Kronoscorpionidae (Kjellesvig-waering, 1986) - 1 Species
Kustarachnidae (Petrunkevitch, 1949) - 1 Species
Labidostommidae (Oudemans, 1906) -> Labidostommatidae - 1 Species
Labriscorpionidae (Kjellesvig-waering, 1986) - 1 Species
Laelapidae (Berlese, 1892) - 55 Species
Laelaptonyssidae (Womersley, 1956) - 1 Species
Lagonomegopidae (Eskov & Wunderlich, 1995) - 1 Species
Laminosioptidae (Vitzthum, 1931) - 1 Species
Larcidae (Harvey, 1992) - 10 Species
Lardoglyphidae (Oudemans, 1927) - 3 Species
Laversiidae (Cook, 1955) - 1 Species
Lebertiidae (Thor, 1900) - 4 Species
Lechytiidae (J.c. Chamberlin, 1929) - 4 Species
Leeuwenhoekiidae (Womersley, 1944) - 2 Species
Leptonetidae (Simon, 1890) - 72 SpeciesLeptonetid spiders
Liacaridae (Sellnick, 1928) - 9 Species
Limnesiidae (Thor, 1900) - 38 Species
Limnocharidae (Grube, 1859) - 2 Species
Limnozetidae (Thor, 1937) - 2 Species
Linotetranidae (Baker & Pritchard, 1953) - 1 Species
Linyphiidae (Blackwall, 1859) - 1056 SpeciesDwarf spiders
Liochelidae (Fet & Bechley, 2001) - 1 SpeciesRockloving scorpions
Liocranidae (Simon, 1897) - 13 SpeciesLiocranid sac spiders
Liodidae (Grandjean, 1954) - 1 Species
Lissomartidae (Dunlop, 1995) - 2 Species
Listrophoridae (Mégnin & Trouessart, 1884) - 50 Species
Lohmanniidae (Berlese, 1916) - 6 Species
Lycosidae (Lehtinen & Hippa, 1979) - 310 SpeciesWolf spiders
Macrochelidae (Vitzthum, 1930) - 34 Species
Macronyssidae (Oudemans, 1936) - 12 Species
Malaconothridae (Berlese, 1916) - 5 Species
Mazoniidae (Petrunkevitch, 1913) - 1 Species
Mecicobothriidae (Holmberg, 1882) - 6 SpeciesDwarf tarantulas
Mecognathidae (Gerson & Walter, 1998) - 1 Species
Megeremaeidae (Woolley & Higgins, 1968) - 1 Species
Menthidae (J.c. Chamberlin, 1930) - 1 Species
Mesoplophoridae (Ewing, 1917) - 4 Species
Metagynuridae (Baker & Wharton, 1952) - 2 Species
Metrioppiidae (Balogh, 1943) - 5 Species
Microdispidae (Cross, 1965) - 1 Species
Microgyniidae (Trägårdh, 1942) - 1 Species
Microtrombidiidae (Womersley, 1936) - 10 SpeciesMicro velvet mites
Microzetidae (Grandjean, 1936) - 1 Species
Mideidae (Thor, 1911) - 1 Species
Mideopsidae (Koenike, 1910) - 20 Species
Mimetidae (Simon, 1881) - 15 SpeciesPirate spiders
Miturgidae (Simon, 1885) - 16 SpeciesLong-legged sac spiders
Mochlozetidae (Grandjean, 1960) - 3 Species
Momoniidae (Viets, 1926) - 13 Species
Monoscutidae (Forster, 1948) -> Neopilionidae - 1 Species
Mummuciidae (Mello-leitão, 1938) - 1 Species
Mycobatidae (Grandjean, 1954) - 14 Species
Myobiidae (Megnin, 1877) - 27 Species
Myocoptidae (Gunther, 1942) - 4 Species
Mysmenidae (Petrunkevitch, 1928) - 6 SpeciesSpurred orb-weavers
Nanhermanniidae (Sellnick, 1928) - 3 Species
Nanorchestidae (Luxton, 1984) - 5 Species
Nehypochthoniidae (Norton & Metz, 1980) - 1 Species
Nemastomatidae (Simon, 1872) - 10 Species
Nemastomoididae (Petrunkevitch, 1955) - 2 Species
Nematalycidae (Strenzke, 1954) - 1 Species
Neoacaridae (Motas & Tanasachi, 1947) - 10 Species
Neobisiidae (Chamberlin, 1930) - 82 Species
Neoliodidae (Sellnick, 1928) - 2 Species
Neopilionidae (Lawrence, 1931) - 25 Species
Neopygmephoridae (Cross, 1965) - 2 Species
Nesticidae (Simon, 1894) - 39 SpeciesCave cobweb spiders
Nosybelbidae (Mahunka, 1994) - 8 Species
Nothridae (Berlese, 1896) - 11 Species
Ochyroceratidae (Fage, 1912) - 1 SpeciesMidget ground weavers
Oecobiidae (Blackwall, 1862) - 9 SpeciesDisc web spiders
Ologamasidae (Ryke, 1962) - 4 Species
Olpiidae (Banks, 1895) - 13 Species
Omartacaridae (Cook, 1963) - 1 Species
Oonopidae (Simon, 1890) - 47 SpeciesDwarf hunting spiders
Opilioacaridae (With, 1902) - 1 Species
Opiliotarbidae (Petrunkevitch, 1945) - 1 Species
Oplitidae (Johnston, 1968) - 3 Species
Oppiidae (Sellnick, 1937) - 13 Species
Opsieobuthidae (Kjellesvig-waering, 1986) -> Centromachidae - 1 Species
Oribatellidae (Jacot, 1925) - 17 Species
Oribatulidae (Thor, 1929) - 18 Species
Oribotritiidae (Grandjean, 1954) - 11 Species
Oripodidae (Jacot, 1925) - 1 Species
Otopheidomenidae (Treat, 1955) - 1 Species
Oxidae (Viets, 1926) - 3 Species
Oxyopidae (Thorell, 1870) - 20 SpeciesLynx spiders
Pachylaelapidae (Berlese, 1913) - 1 Species
Palaeacaridae (Grandjean, 1932) - 1 Species
Palaeobuthidae (Kjellesvig-waering, 1986) - 1 Species
Palaeocharinidae (Hirst, 1923) - 8 Species
Palaeophonidae (Thorell & Lindström, 1885) - 1 Species
Palaeopisthacanthidae (Kjellesvig-waering, 1986) - 1 Species
Paracharontidae (Weygoldt, 1996) - 2 Species
Paraisobuthidae (Kjellesvig-waering, 1986) - 1 Species
Parakalummidae (Grandjean, 1936) - 3 Species
Parantennulidae (Willmann, 1940) - 1 Species
Parasitidae (Oudemans, 1901) - 28 Species
Parattidae (Petrunkevitch, 1922) - 4 Species
Parholaspididae (Evans, 1956) - 4 Species
Passalozetidae (Grandjean, 1954) - 1 Species
Pentanychidae (Briggs, 1971) - 5 Species
Penthaleidae (Oudemans, 1931) - 2 SpeciesEarth Mites
Penthalodidae (Strandtmann, 1964) - 1 Species
Phalangiidae (Latreille, 1802) - 24 Species
Phalangodidae (Simon, 1879) - 74 Species
Phenopelopidae (Petrunkevitch, 1955) - 8 Species
Philodanidae (Kethley, 1977) - 1 Species
Philodromidae (Thorell, 1870) - 117 SpeciesPhilodromid crab spiders
Pholcidae (C. L. Koch, 1851) - 114 SpeciesDaddy long-legs spiders
Phrynichidae (Simon, 1892) - 1 Species
Phrynidae (Blanchard, 1852) - 8 Species
Phthiracaridae (Perty, 1841) - 20 Species
Phytoptidae (Manson, 1970) - 11 Species
Phytoseiidae (Berlese, 1916) - 132 Species
Piersigiidae (Oudemans, 1902) - 2 Species
Pimoidae (Wunderlich, 1986) - 15 SpeciesPimoid spiders
Pionidae (Thor, 1900) - 70 Species
Pisauridae (Simon, 1890) - 14 SpeciesNursery web spiders
Plateremaeidae (Trägårdh, 1931) - 1 Species
Plectreuridae (Simon, 1893) - 16 SpeciesPlectreurid spiders
Pneumocoptidae (Fain, 1957) - 2 Species
Podapolipidae (Husband, 1990) - 22 Species
Podocinidae (Berlese, 1913) - 3 Species
Poliocheridae (Scudder, 1884) - 3 Species
Polyaspidae (Berlese, 1913) -> Polyaspididae - 1 Species
Polyaspididae (Berlese, 1913) - 14 Species
Pontarachnidae (Koenike, 1910) - 1 Species
Proctophyllodidae (Trouessart & Mégnin, 1884) - 6 Species
Prodidomidae (Simon, 1882) - 2 SpeciesLong-spinneret ground spiders
Prokoeneniidae (Condé, 1991) - 2 Species
Proscorpiidae (Scudder, 1885) - 4 Species
Protochthoniidae (Norton, 1988) - 1 Species
Protoribatidae (J. & P. Balogh, 1984) - 1 Species
Protosolpugidae (Petrunkevitch, 1953) - 0 Species
Pseudochiridiidae (Chamberlin, 1923) - 1 Species
Pseudogarypidae (J.c. Chamberlin, 1923) - 6 Species
Psoralgidae (Oudemans, 1908) - 1 Species
Psorergatidae (Womersley, 1941) - 3 Species
Psoroptidae (Hering, 1838) - 7 SpeciesScab mites
Pterolichidae (Trouessart, 1899) - 4 Species
Pteronyssidae (Oudemans, 1941) - 3 Species
Pterygosomatidae (Womersley, 1941) - 5 Species
Ptiloxenidae (Gaud, 1982) - 1 Species
Pulmonatstem - 0 Species
Pyemotidae (Newport, 1850) - 5 Species
Pygmephoridae (Krczal, 1964) - 24 Species
Pyroglyphidae (Cunliffe, 1958) - 9 Species
Quadroppiidae (Balogh, 1983) - 1 Species
Raillietiidae (Vitzthum, 1943) - 2 Species
Raphignathidae (Kramer, 1877) - 8 Species
Resinacaridae (Mahunka, 1976) - 1 Species
Rhagidiidae (Zacharda, 1980) - 34 Species
Rhinonyssidae (Trouessart, 1895) - 12 Species
Rhodacaridae (Oudemans, 1902) - 8 Species
Rhyncoptidae (Lawrence, 1956) - 1 Species
Ricinoididae (Ewing, 1929) - 1 SpeciesHooded tickspiders
Rosensteiniidae (Cooreman, 1954) - 5 Species
Sabaconidae (Dresco, 1970) - 17 Species
Salticidae (Blackwall, 1842) - 597 SpeciesJumping spiders
Sarcoptidae (Megnin, 1877) - 8 SpeciesItch mites
Scheloribatidae (Jacot, 1935) - 2 Species
Schizogyniidae (Trägårdh, 1950) - 1 Species
Sclerosomatidae (Simon, 1879) - 80 Species
Scorpionidae (Pierre André Latreille, 1802) - 10 SpeciesLargeclaw scorpions
Scutacaridae (Paoli, 1911) - 3 Species
Scutoverticidae (Grandjean, 1954) - 1 Species
Scytodidae (Blackwall, 1864) - 8 SpeciesSpitting spiders
Segestriidae (Simon, 1893) - 14 SpeciesTubeweb spiders
Sejidae (Berlese, 1885) - 6 Species
Selenopidae (Simon, 1897) - 10 SpeciesWall spiders
Sicariidae (Keyserling, 1880) - 15 SpeciesRecluse spiders
Sironidae (Simon, 1879) - 9 Species
Siteroptidae (Martin, 1978) - 6 SpeciesSiteroptid mites
Smarididae (Kramer, 1878) - 1 Species
Sparassidae (Bertkau, 1872) - 24 SpeciesHuntsman spiders
Sperchontidae (Thor, 1900) - 10 Species
Spinturnicidae (Oudemans, 1902) - 3 Species
Steganacaridae (NiedbaÅa, 1986) - 3 Species
Sternophoridae (J.c. Chamberlin, 1923) - 4 Species
Stigmaeidae (Wood, 1967) - 62 Species
Stoermeroscorpionidae (Kjellesvig-waering, 1986) - 1 Species
Stygnommatidae (Roewer, 1923) - 2 Species
Stygothrombiidae (Thor, 1935) - 3 Species
Suctobelbidae (Jacot, 1938) - 5 Species
Suidasiidae (Hughes, 1948) - 5 Species
Superstitioniidae (Stahnke, 1940) - 1 Species
Syarinidae (Chamberlin, 1930) - 22 Species
Symphytognathidae (Hickman, 1931) - 1 SpeciesDwarf orb-weavers
Synichotritiidae (Walker, 1965) - 2 Species
Synotaxidae (Simon, 1894) - 1 SpeciesSynotaxid spiders
Syringobiidae (Trouessart, 1897) - 15 Species
Syringophilidae (Lavoipierre, 1953) - 9 Species
Tanaupodidae (Thor, 1935) - 2 Species
Tarsocheylidae (Berlese, 1904) - 3 Species
Tarsonemidae (Kramer, 1877) - 122 SpeciesWhite mites
Tectocepheidae (Grandjean, 1954) - 2 Species
Tegeocranellidae (P. Balogh, 1987) - 4 Species
Tegoribatidae (Grandjean, 1954) - 3 Species
Telemidae (Fage, 1913) - 4 SpeciesLong-legged cave spiders
Telmatoscorpionidae (Kjellesvig-waering, 1986) - 1 Species
Tengellidae (Dahl, 1908) - 42 SpeciesTengellid spiders
Tenuialidae (Jacot, 1929) - 3 Species
Tenuipalpidae (Berlese, 1913) - 58 SpeciesFalse spider mites
Tetragnathidae (Menge, 1866) - 82 SpeciesLong jawed orb-weavers
Tetranychidae (Donnadieu, 1875) - 258 SpeciesSpider mites
Teutoniidae (Koenike, 1910) - 1 Species
Thelyphonidae (Lucas, 1835) - 6 Species
Theraphosidae (Thorell, 1870) - 74 SpeciesTarantulas
Theridiidae (Sundevall, 1833) - 360 SpeciesCobweb spiders
Theridiosomatidae (Simon, 1881) - 3 SpeciesRay spiders
Thermacaridae (Sokolow, 1927) - 2 Species
Thomisidae (Sundevall, 1833) - 184 SpeciesCrab spiders
Thyrisomidae (Grandjean, 1953) - 5 Species
Titanoecidae (Lehtinen, 1967) - 6 SpeciesTitanoecid spiders
Torrenticolidae (Thor, 1902) - 18 SpeciesTorrent Mites
Trachytidae (Tragärdh, 1938) - 1 Species
Trachyuropodidae (Kramer, 1881) - 27 Species
Travuniidae (Absolon & Kratochvíl, 1932) - 11 Species
Trechaleidae (Simon, 1890) - 1 SpeciesTrechaleid spiders
Trematuridae (Berlese, 1917) - 35 Species
Trhypochthoniidae (Willmann, 1931) - 5 Species
Triaenonychidae (Sörensen In Koch, 1886) - 31 Species
Tridenchthoniidae (Balzan, 1892) - 2 Species
Trigonomartidae (Petrunkevitch, 1949) - 2 Species
Trigonotarbidae (Petrunkevitch, 1949) - 1 Species
Trogloraptoridae (Griswold, Audisio & Ledford, 2012) - 1 Species
Trombellidae (Thor, 1935) - 1 Species
Trombiculidae (Ewing, 1929) - 15 SpeciesChiggers
Trombidiidae (Leach, 1815) - 13 SpeciesBeer Bahuti
Tuckerellidae (Baker & Pritchard, 1953) - 2 SpeciesPeacock mites
Turbinoptidae (Fain, 1957) - 4 Species
Tydeidae (Kramer, 1877) - 8 SpeciesTydeid mites
Uloboridae (Thorell, 1869) - 17 SpeciesHackled orb-weaver
Unionicolidae (Oudemans, 1909) - 76 Species
Urodacidae (Pocock, 1893) - 1 SpeciesAustralian burrowing scorpions
Urodinychidae (Berlese, 1917) - 21 Species
Uropodellidae (Camin, 1955) - 2 Species
Uropodidae (Kramer, 1881) - 20 Species
Vaejovidae (Thorell, 1876) - 138 Species
Varroidae (Delfinado & Baker, 1974) - 1 Species
Veigaiidae (Oudemans, 1939) - 12 Species
Walchiidae (Ewing, 1946) - 2 Species
Wettinidae (Cook, 1956) - 2 Species
Winterschmidtiidae (Oudemans, 1923) - 4 Species
Withiidae (Chamberlin, 1931) - 6 Species
Xenillidae (Woolley & Higgins, 1966) - 2 Species
Xenocaligonellididae (González, 1978) - 1 Species
Xolalgidae (Dubinin, 1953) - 2 Species
Zerconidae (Berlese, 1892) - 8 Species
Zetomimidae (Shaldybina, 1966) - 1 Species
Zodariidae (Thorell, 1881) - 7 SpeciesZodariid ground spiders
Zoridae (F. O. P-cambridge, 1893) - 2 SpeciesZorid spiders
Zorocratidae (Dahl, 1913) - 6 SpeciesZorocratid spiders
Zoropsidae (Bertkau, 1882) - 1 SpeciesZoropsid spiders
471 Families with 9475 Species in USA
ABCDEFGHIJKLMNOPQRSTUVWXYZ


ABCDEFGHIJKLMNOPQRSTUVWXYZ
Species overview - Checklist for Arachnida in USA without family allocation
Buthiscorpius lemayi (E. N. Kjellesvig-waering, 1986)Info
Cerogarypus agassizi ()Info
Eoctonus miniatus (A. I. Petrunkevitch, 1913)Info
Palaeopisthacanthus schucherti (A. I. Petrunkevitch, 1913)Info
Palaeopisthacanthus vogelandurdeni (A. J. Jeram, 1994)Info
Petrunkevitchiana oculata (A. I. Petrunkevitch, 1922)Info
Phoberocheirus cribellus ()Info
Sorellophrynus carbonarius (A. I. Petrunkevitch, 1913)Info
8 Species in Arachnida for USA listed without family allocation
Taxonomy
ClassArachnida
Arachnids
AuthorLamarck, 1801

Keywords
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NOPQRSTUVWXYZ
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