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Checklist for Class Arachnida Lamarck, 1801 (Arachnids)
and region Washington (Macomb County, Michigan, USA)


Class
 		Arachnida
Lamarck, 1801
Arachnids		4
4
3		Families
Genera
Species		 
Taxom
 


List of families for Washington (Macomb County)
4 Families width 3 Species
Eriophyidae Nalepa, 1898Blister mites0SpeciesTaxom
Dysderidae C. L. Koch, 1837Dysderid spiders1SpeciesTaxom
Phalangiidae Latreille, 1802Daddy-Long-Legs1SpeciesTaxom
Theridiidae Sundevall, 1833Cobweb And Widow Spiders1SpeciesTaxom


Genera for Washington (Macomb County)
4 Genera with 3 Species
Aceria Keifer, 1944
0SpeciesTaxom
Dysdera Latreille, 20011SpeciesTaxom
Phalangium Linnaeus, 17611SpeciesTaxom
Steatoda Sundevall, 1802False black widows1SpeciesTaxom


Species list for Washington (Macomb County)
3 Species
Dysdera pristiphora Carlo Pesarini, 2001
Phalangium opilio Linnaeus, 1761Brown daddy-long-legs
Steatoda triangulosa Walckenaer, 1802Triangulate bud spider

Subnodes of Arachnida with occurrences in Washington (Macomb County)
SubclassDromopoda
Shultz, 1990
1
1
1		Family
Genus
Species
Taxom

SubclassMicrura
Ehrenberg, 1831
3
3
2		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