Checklist for Class Arachnida Lamarck, 1801 (Arachnids)
and region Williamson County (Illinois, USA)
List of families for Williamson County (Illinois)
17 Families width 22 Species | Eviphididae Berlese, 1913 | | 1 | Species | Taxom | | Amblyommidae Banks, 1907 | | 2 | Species | Taxom | | Corinnidae (Karsch, 1880) | Ant-like Sac Spiders | 3 | Species | Taxom | | Carabodidae Koch, 1837 | | 1 | Species | Taxom | | Linyphiidae Blackwall, 1859 | Dwarf spiders | 1 | Species | Taxom | | Araneidae Simon, 1895 | Golden orb web spiders | 1 | Species | Taxom | | Dysderidae C. L. Koch, 1837 | Dysderid spiders | 1 | Species | Taxom | | Dictynidae O. P-Cambridge, 1871 | Dictynid spiders | 1 | Species | Taxom | | Gnaphosidae Pocock, 1898 | Flat-bellied ground spiders | 1 | Species | Taxom | | Ereynetidae Schrank, 1776 | | 1 | Species | Taxom | | Chernetidae Menge, 1855 | | 1 | Species | Taxom | | Theridiidae Sundevall, 1833 | Cobweb And Widow Spiders | 2 | Species | Taxom | | Philodromidae Thorell, 1870 | False crab spiders | 1 | Species | Taxom | | Tengellidae Dahl, 1908 | Tengellid spiders | 1 | Species | Taxom | | Tetragnathidae (Menge, 1866) | Elongated Orb Weavers | 1 | Species | Taxom | | Trombiculidae Ewing, 1929 | Chigger mites | 1 | Species | Taxom | | Thomisidae Sundevall, 1833 | Crab Spider | 2 | Species | Taxom |
Genera for Williamson County (Illinois)
21 Genera with 22 Species #ACDEHMNPSTWX
| Alliphis Halbert, 1976 | | 1 | Species | Taxom | | Amblyomma hirtum. Neumann, 1758 | | 1 | Species | Taxom | | Apochinomma Pavesi, 1896 | | 1 | Species | Taxom | | Carabodes Koch, 1914 | | 1 | Species | Taxom | | Castianeira Keyserling, 1847 | Ant-Mimic Sac Spiders | 1 | Species | Taxom | | Ceraticelus Simon, 1874 | | 1 | Species | Taxom | | Cyclosa Menge, 1772 | Three-lobed Spiders | 1 | Species | Taxom | | Dermacentor Koch, 1869 | Dog Ticks | 1 | Species | Taxom | | Dysdera Latreille, 1910 | | 1 | Species | Taxom | | Emblyna Chamberlin, 1892 | | 1 | Species | Taxom | | Herpyllus Hentz, 1832 | | 1 | Species | Taxom | | Hydranetes Kethley, 1971 | | 1 | Species | Taxom | | Mirochernes Beier, 1895 | | 1 | Species | Taxom | | Neospintharus Exline, 1894 | | 1 | Species | Taxom | | Parasteatoda Archer, 1980 | Comb-Clawed Spider | 1 | Species | Taxom | | Philodromus Walckenaer, 1934 | Running Crab Spider | 1 | Species | Taxom | | Phrurotimpus Chamberlin &..., 1847 | | 1 | Species | Taxom | | Socalchemmis Platnick & U..., 1919 | | 1 | Species | Taxom | | Tetragnatha Latreille, 1758 | Four-jawed spider | 1 | Species | Taxom | | Walchia Ewing, 1964 | | 1 | Species | Taxom | | Xysticus Koch, 1880 | Ground Crab Spider | 2 | Species | Taxom |
Species list for Williamson County (Illinois)
22 Species | Alliphis megalodacne Potter & Joh..., 1976 | | | Amblyomma americanum Linnaeus, 1758 | Lone Star Tick | | Apochinomma formica Eugène Simon, 1896 | | | Carabodes scymnus Hull, 1914 | | | Castianeira descripta Nicholas Mar..., 1847 | Red Spotted Ant Mimic Spider | | Ceraticelus fissiceps Octavius Pic..., 1874 | | | Cyclosa conica Pallas, 1772 | Conical Trashline Orbweaver | | Dermacentor (Americentor) albipictus Packard, 1869 | Elk tick | | Dysdera nomada Eugène Simon, 1910 | Stocky cerith | | Emblyna maxima Richard C. B..., 1892 | | | Herpyllus ecclesiasticus Hentz, 1832 | Eastern parson spider | | Hydranetes tropisternus Kethley, 1971 | | | Mirochernes dentatus Banks, 1895 | | | Neospintharus furcatus O. P.-Cambridge, 1894 | Cobweb spiders | | Parasteatoda tabulata Levi, 1980 | Comb-footed spider | | Philodromus peninsulanus Gertsch, 1934 | | | Phrurotimpus alarius (Nicholas Mar..., 1847) | ⇒ Phrurotimpus borealis James Henry ..., 1911 | | Socalchemmis dolichopus Ralph Vary C..., 1919 | | | Tetragnatha extensa (Linnaeus, 1758) | ⇒ Tetragnatha montana Simon, 1874 | | Walchia (Wenia) isonychia Nadchatram &..., 1964 | | | Xysticus discursans Eugen von Ke..., 1880 | | | Xysticus elegans Eugen von Ke..., 1880 | Elegant crab spider |
Subnodes of Arachnida with occurrences in Williamson County (Illinois)
 | | Arachnida (Lamarck 1801) |
Links, sources and further information Arachnida at biolcoll.utu.fi
Arachnida at wiki.spinnen-forum.de
Arachnida at spiderling.de
Arachnida at wsc.nmbe.ch
Arachnida at artfakta.se
Arachnida at biodiversity.org.au
Arachnida at dyntaxa.se
Arachnida at gbif.org
Arachnida at irmng.org
Arachnida at itis.gov
Arachnida at marinespecies.org
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