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Checklist for Class Arachnida Lamarck, 1801 (Arachnids)
and region El Cerrito (Riverside County, California, USA)


Class
 		Arachnida
Lamarck, 1801
Arachnids		7
8
8		Families
Genera
Species		 
Taxom
 


List of families for El Cerrito (Riverside County)
7 Families width 8 Species
Tenuipalpidae Berlese, 1913False spider mites1SpeciesTaxom
Carabodidae Koch, 18371SpeciesTaxom
Amblyommidae Banks, 19071SpeciesTaxom
Laelapidae Berlese, 18921SpeciesTaxom
Theridiidae Sundevall, 1833Cobweb And Widow Spiders2SpeciesTaxom
Tetranychidae Donnadieu, 1875Spider mites1SpeciesTaxom
Gnaphosidae (Pocock, 1898)Flat-bellied ground spiders1SpeciesTaxom


Genera for El Cerrito (Riverside County)
8 Genera with 8 Species
Brevipalpus Donnadieu, 19491SpeciesTaxom
Carabodes Koch, 19141SpeciesTaxom
Dermacentor Koch, 1869Dog Ticks1SpeciesTaxom
Haemogamasus Berlese, 19031SpeciesTaxom
Latrodectus Walckenaer, 1775Black widow spider1SpeciesTaxom
Oligonychus Berlese, 19501SpeciesTaxom
Scotophaeus Simon, 18711SpeciesTaxom
Steatoda Sundevall, 1838False black widows1SpeciesTaxom


Species list for El Cerrito (Riverside County)
8 Species
Brevipalpus pini Baker, 1949
Carabodes scymnus Hull, 1914
Dermacentor (Americentor) albipictus Packard, 1869Elk tick
Haemogamasus pontiger Berlese, 1903
Latrodectus mactans (Fabricius, 1775)⇒ Latrodectus tredecimguttatus Rossi, 1790
Oligonychus (Oligonychus) milleri McGregor, 1950Pine spider mite
Scotophaeus blackwalli (Thorell, 1871)⇒ Scotophaeus peninsularis Carl Friedri..., 1928
Steatoda grossa C. L. Koch, 1838Brown house spider

Subnodes of Arachnida with occurrences in El Cerrito (Riverside County)
SubclassMicrura
Ehrenberg, 1831
7
8
8		Families
Genera
Species
Taxom



Arachnida (Lamarck 1801)
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