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Checklist for Class Arachnida Lamarck, 1801 (Arachnids)
and region Devon (Chester County, Pennsylvania, USA)


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


List of families for Devon (Chester County Pennsylvania)
7 Families width 7 Species
Corinnidae Karsch, 1880Ant-like Sac Spiders1SpeciesTaxom
Cheliferidae Risso, 18261SpeciesTaxom
Dysderidae (C. L. Koch, 1837)Dysderid spiders1SpeciesTaxom
Linyphiidae Blackwall, 1859Dwarf spiders1SpeciesTaxom
Phalangiidae Latreille, 1802Daddy-Long-Legs1SpeciesTaxom
Philodromidae (Thorell, 1870)False crab spiders1SpeciesTaxom
Tetranychidae Donnadieu, 1875Spider mites1SpeciesTaxom


Genera for Devon (Chester County Pennsylvania)
7 Genera with 7 Species
Apochinomma Pavesi, 18961SpeciesTaxom
Chelifer Geoffroy, 17581SpeciesTaxom
Dysdera Latreille, 18381SpeciesTaxom
Neriene Blackwall, 18301SpeciesTaxom
Phalangium Linnaeus, 17611SpeciesTaxom
Philodromus Walckenaer, 1826Running Crab Spider1SpeciesTaxom
Tetranychus Dufour, 18361SpeciesTaxom


Species list for Devon (Chester County Pennsylvania)
7 Species
Apochinomma formica Eugène Simon, 1896
Chelifer cancroides Linnaeus, 1758Book pseudoscorpion
Dysdera crocata (Koch, 1838)⇒ Dysdera maurusia Tord Tamerla..., 1873
Neriene clathrata Sundevall, 1830
Phalangium opilio Linnaeus, 1761Brown daddy-long-legs
Philodromus rufus (Walckenaer, 1826)⇒ Philodromus albidus Wladislaus K..., 1911
Tetranychus (Tetranychus) urticae C. L. Koch, 1836Carmine spider mite

Subnodes of Arachnida with occurrences in Devon (Chester County Pennsylvania)
SubclassDromopoda
Shultz, 1990
2
2
2		Families
Genera
Species
Taxom

SubclassMicrura
Ehrenberg, 1831
5
5
5		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