Checklist for Class Arachnida Lamarck, 1801 (Arachnids)
and region Richmond (Contra Costa County, California, USA)
List of families for Richmond (Contra Costa County)
20 Families width 25 Species | Eriophyidae Nalepa, 1898 | Blister mites | 1 | Species | Taxom | | Anyphaenidae Bertkau, 1878 | Anyphaenid sac spiders | 1 | Species | Taxom | | Dictynidae O. P-Cambridge, 1871 | Dictynid spiders | 1 | Species | Taxom | | Tetranychidae Donnadieu, 1875 | Spider mites | 2 | Species | Taxom | | Miturgidae Simon, 1885 | Long-legged sac spiders | 1 | Species | Taxom | | Cheyletidae Leach, 1815 | | 0 | Species | Taxom | | Gnaphosidae (Pocock, 1898) | Flat-bellied ground spiders | 3 | Species | Taxom | | Dysderidae C. L. Koch, 1837 | Dysderid spiders | 1 | Species | Taxom | | Cheliferidae Risso, 1826 | | 1 | Species | Taxom | | Salticidae Blackwall, 1842 | Jumping Spider | 2 | Species | Taxom | | Ereynetidae Schrank, 1776 | | 1 | Species | Taxom | | Ixodidae C. L. Koch, 1844 | Hard Tick | 1 | Species | Taxom | | Theridiidae Sundevall, 1833 | Cobweb And Widow Spiders | 2 | Species | Taxom | | Araneidae (Simon, 1895) | Golden orb web spiders | 2 | Species | Taxom | | Camerobiidae Southcott, 1957 | Stilt-legged mites | 0 | Species | Taxom | | Oxyopidae Thorell, 1870 | Lynx spiders | 1 | Species | Taxom | | Pholcidae C. L. Koch, 1851 | Carpenter spider | 1 | Species | Taxom | | Amblyommidae (Banks, 1907) | | 1 | Species | Taxom | | Philodromidae (Thorell, 1870) | False crab spiders | 2 | Species | Taxom | | Thomisidae Sundevall, 1833 | Crab Spider | 1 | Species | Taxom |
Genera for Richmond (Contra Costa County)
28 Genera with 25 Species #ABCDEGHILMNOPRSTXZ
| Aculops Keifer, 1972 | | 1 | Species | Taxom | | Anyphaena Sundevall, 1896 | | 1 | Species | Taxom | | Blabomma Chamberlin &..., 1895 | | 1 | Species | Taxom | | Bryobia Koch, 1835 | | 1 | Species | Taxom | | Cheiracanthium C. L. Koch, 1847 | Longlegged sac spiders | 1 | Species | Taxom | Cheletomimus Oudemans, 1904 | | 0 | Species | Taxom | | Drassyllus Chamberlin, 1900 | | 1 | Species | Taxom | | Dysdera Latreille, 1910 | | 1 | Species | Taxom | | Ellingsenius J. C. Chambe..., 1903 | | 1 | Species | Taxom | | Gnaphosa Latreille, 1872 | | 1 | Species | Taxom | | Habronattus F. O. P.-Cam..., 1901 | Paradise Spiders | 1 | Species | Taxom | | Hydranetes Kethley, 1971 | | 1 | Species | Taxom | | Ixodes Latreille, 1911 | | 1 | Species | Taxom | | Latrodectus Walckenaer, 1841 | Black widow spider | 1 | Species | Taxom | | Mangora O. P.-Cambridge, 1847 | | 1 | Species | Taxom | Neophyllobius Berlese, 1886 | | 0 | Species | Taxom | | Oligonychus Berlese, 1950 | | 1 | Species | Taxom | | Oxyopes Latreille, 1845 | Lynx Spiders | 1 | Species | Taxom | | Phidippus C. L. Koch, 1883 | | 1 | Species | Taxom | | Pholcophora Banks, 1896 | | 1 | Species | Taxom | | Rhipicephalus Ziemanni Neu..., 1806 | | 1 | Species | Taxom | | Rhysodromus Schick, 1819 | | 1 | Species | Taxom | | Scotophaeus Simon, 1871 | | 1 | Species | Taxom | | Steatoda Sundevall, 1838 | False black widows | 1 | Species | Taxom | | Tibellus Simon, 1802 | Slender Crab Spider | 1 | Species | Taxom | Tricholathys Chamberlin &..., 1935 | | 0 | Species | Taxom | | Xysticus Koch, 1880 | Ground Crab Spider | 1 | Species | Taxom | | Zygiella F. O. P.-Cam..., 1757 | | 1 | Species | Taxom |
Species list for Richmond (Contra Costa County)
25 Species | Aculops fuchsiae Keifer, 1972 | Fuchsia gall mite | | Anyphaena pacifica Richard C. B..., 1896 | | | Blabomma californicum Eugène Simon, 1895 | | | Bryobia (Bryobia) praetiosa (C. L. Koch, 1835) | ⇒ Bryobia macrotibialis Mathys, 1962 | | Cheiracanthium inclusum Hentz, 1847 | Agrarian sac spider | | Drassyllus insularis Banks, 1900 | | | Dysdera nomada Eugène Simon, 1910 | Stocky cerith | | Ellingsenius sculpturatus Lewis, 1903 | | | Gnaphosa petrobia Carl Ludwig ..., 1872 | | | Habronattus klauseri Peckham & Pe..., 1901 | | | Hydranetes tropisternus Kethley, 1971 | | | Ixodes rugosus Bishopp, 1911 | | | Latrodectus geometricus C. L. Koch, 1841 | Brown black widow | | Mangora placida Hentz, 1847 | Tuft-Legged Orb Weaver | | Oligonychus (Wainsteiniella) subnudus McGregor, 1950 | | | Oxyopes scalaris Nicholas Mar..., 1845 | Western lynx spider | | Phidippus johnsoni Peckham & Pe..., 1883 | Johnson jumper | | Pholcophora americana Banks, 1896 | | | Rhipicephalus (Rhipicephalus) sanguineus (Latreille, 1806) | ⇒ Rhipicephalus sanguineus Latreille, 1806 | | Rhysodromus histrio (Latreille, 1819) | ⇒ Philodromus histrio Latreille, 1819 | | Scotophaeus blackwalli (Thorell, 1871) | ⇒ Scotophaeus peninsularis Carl Friedri..., 1928 | | Steatoda grossa C. L. Koch, 1838 | Brown house spider | | Tibellus oblongus (Walckenaer, 1802) | ⇒ Tibellus maritimus Menge, 1875 | | Xysticus californicus Eugen von Ke..., 1880 | | | Zygiella x-notata (Clerck, 1757) | ⇒ Guizygiella nadleri Heimer, 1984 |
Subnodes of Arachnida with occurrences in Richmond (Contra Costa County)
 | | 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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