Checklist for Class Arachnida Lamarck, 1801 (Arachnids)
and region Lassen County (Eastern California, California, USA)
List of families for Lassen County
24 Families width 29 Species and 2 Subspecies #ASCMTDGPOLHB
| Araneidae Simon, 1895 | Golden orb web spiders | 3 | Species | Taxom | | Alloptidae Gaud, 1957 | | 1 | Species | Taxom | | Salticidae (Blackwall, 1842) | Jumping Spider | 2 | Species | Taxom | | Corinnidae Karsch, 1880 | Ant-like Sac Spiders | 1 | Species | Taxom | | Carabodidae Koch, 1837 | | 1 | Species | Taxom | | Cercomegistidae Trägårdh, 1937 | | 1 | Species | Taxom | | Miturgidae Simon, 1885 | Long-legged sac spiders | 1 | Species | Taxom | | Theridiidae Sundevall, 1833 | Cobweb And Widow Spiders | 1 | Species | Taxom | | Dysderidae C. L. Koch, 1837 | Dysderid spiders | 2 | Species | Taxom | | Geogarypidae Chamberlin, 1930 | | 1 | Species | Taxom | | Agelenidae C. L. Koch, 1837 | Agelenid Spiders | 2 | Species | Taxom | | Phalangodidae Simon, 1879 | | 1 | Species | Taxom | | Gnaphosidae Pocock, 1898 | Flat-bellied ground spiders | 1 | Species | Taxom | | Tetranychidae Donnadieu, 1875 | Spider mites | 1 | Species | Taxom | | Argasidae C. L. Koch, 1844 | Soft tick | 0 | Species | Taxom | | Oxyopidae Thorell, 1870 | Lynx spiders | 1 | Species | Taxom | | Lycosidae (Lehtinen & H..., 1979) | Ground Spiders | 1 | Species | Taxom | | Pholcidae C. L. Koch, 1851 | Carpenter spider | 2 | Species | Taxom | | Tengellidae Dahl, 1908 | Tengellid spiders | 1 | Species | Taxom | | Sperchontidae Thor, 1900 | | 0 | Species | Taxom | | Tetragnathidae Menge, 1866 | Elongated Orb Weavers | 2 | Species | Taxom | | Hydryphantidae Piersig, 1896 | | 1 | Species | Taxom | | Dictynidae O. P-Cambridge, 1871 | Dictynid spiders | 1 | Species | Taxom | | Bothriuridae Simon, 1880 | | 1 | Species | Taxom |
Genera for Lassen County
30 Genera with 29 Species #ACDGHLMNOPSTU
| Aculepeira Chamberlin &..., 1875 | | 1 | Species | Taxom | | Alloptes Canestrini, 1976 | | 1 | Species | Taxom | | Anasaitis Bryant, 1837 | | 1 | Species | Taxom | | Apochinomma Pavesi, 1896 | | 1 | Species | Taxom | | Carabodes Koch, 1914 | | 1 | Species | Taxom | | Cercoleipus Kinn, 1970 | | 1 | Species | Taxom | | Cheiracanthium C. L. Koch, 1864 | Longlegged sac spiders | 1 | Species | Taxom | | Cryptachaea Archer, 1886 | cobweb spiders | 1 | Species | Taxom | | Dysdera Latreille, 2001 | | 2 | Species | Taxom | | Geogarypus J. C. Chambe..., 1981 | | 1 | Species | Taxom | | Hololena Chamberlin &..., 1942 | | 1 | Species | Taxom | | Larinioides Caporiacco, 1758 | Furrow spiders | 1 | Species | Taxom | | Megacina Ubick & Briggs, 1942 | | 1 | Species | Taxom | | Micaria Westring, 1831 | | 1 | Species | Taxom | | Neoscona Simon, 1842 | Spotted orbweavers | 1 | Species | Taxom | Oligonychus Berlese, 1886 | | 0 | Species | Taxom | Ornithodoros C. L. Koch, 1837 | Soft-bodied Tick | 0 | Species | Taxom | | Oxyopes Latreille, 1845 | Lynx Spiders | 1 | Species | Taxom | | Pardosa C. L. Koch, 1885 | Thin-legged Wolf Spider | 1 | Species | Taxom | | Phidippus C. L. Koch, 1845 | | 1 | Species | Taxom | | Pholcophora Banks, 1896 | | 1 | Species | Taxom | | Psilochorus Simon, 1940 | | 1 | Species | Taxom | | Socalchemmis Platnick & U..., 1919 | | 1 | Species | Taxom | Sperchon Kramer, 1877 | Water Mites | 0 | Species | Taxom | | Tegenaria Latreille, 1785 | House spiders | 1 | Species | Taxom | | Tetragnatha Latreille, 1842 | Four-jawed spider | 2 | Species | Taxom | | Tetranychus Dufour, 1836 | | 1 | Species | Taxom | | Thyasella Viets, 1958 | | 1 | Species | Taxom | | Tricholathys Chamberlin &..., 1921 | | 1 | Species | Taxom | | Urophonius Pocock, 1876 | | 1 | Species | Taxom |
Species list for Lassen County
29 Species and 2 Subspecies | Aculepeira packardi Thorell, 1875 | | | Alloptes (Sternalloptes) cyrtolobus Gaud, 1976 | | | Anasaitis canosa Walckenaer, 1837 | Twin-flagged jumping spider | | Apochinomma formica Eugène Simon, 1896 | | | Carabodes scymnus Hull, 1914 | | | Cercoleipus coelonotus ♰ Kinn, 1970 | | | Cheiracanthium mildei L. Koch, 1864 | North Yellow Sac Spider | | Cryptachaea blattea Urquhart, 1886 | Theridiid spider | | Dysdera nomada Eugène Simon, 1910 | Stocky cerith | | Dysdera pristiphora Carlo Pesarini, 2001 | | | Geogarypus rhantus Harvey, 1981 | | | Hololena lassena Ralph Vary C..., 1942 | | | Larinioides patagiatus Clerck, 1758 | Ornamental Orbweaver | | Megacina cockerelli C.J.Goodnigh..., 1942 | Maricopa milkvetch | | Micaria pulicaria Sundevall, 1831 | Glossy ant spider | | Neoscona arabesca Walckenaer, 1842 | Arabesque orbweaver | | Oxyopes salticus Hentz, 1845 | Lynx spider | | Pardosa lapidicina (James Henry ..., 1885) | ⇒ Pardosa mercurialis M. E. Montgo..., 1904 | | Phidippus audax (Nicholas Mar..., 1845) | ⇒ Salticus variegatus Hentz, 1845 | | Pholcophora americana Banks, 1896 | | | Psilochorus imitatus Gertsch & Mu..., 1940 | | | Socalchemmis dolichopus Ralph Vary C..., 1919 | | | Tegenaria parietina Fourcroy, 1785 | Cardinal spider | | Tetragnatha laboriosa Hentz, 1850 | Longjawed orb weavers | | Tetragnatha versicolor Walckenaer, 1842 | | | Tetranychus (Tetranychus) urticae C. L. Koch, 1836 | Carmine spider mite | | Thyasella mandibularis torrenticola Schwoerbel, 1958 | | | Tricholathys hirsutipes Richard C. B..., 1921 | | | Urophonius brachycentrus brachycentrus Thorell, 1876 | |
Subnodes of Arachnida with occurrences in Lassen 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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