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Checklist for Infraclass Megoperculata Börner, 1902
and region Florence (Snohomish County, Washington, USA)


Class
 		Arachnida
Lamarck, 1801
Arachnids		13
14
8		Families
Genera
Species		 
Taxom
 

Subclass
 		Micrura
Ehrenberg, 1831
12
13
7		Families
Genera
Species		 
Taxom
 

Infraclass
 		Megoperculata
Börner, 1902
5
5
5		Families
Genera
Species		 
Taxom
 


List of families for Florence (Snohomish County)
5 Families width 5 Species
Amaurobiidae Thorell, 1870Amaurobiids1SpeciesTaxom
Antrodiaetidae Gertsch, 1940Folding trapdoor spider1SpeciesTaxom
Dictynidae O. P-Cambridge, 1871Dictynid spiders1SpeciesTaxom
Dysderidae C. L. Koch, 1837Dysderid spiders1SpeciesTaxom
Mecicobothriidae Holmberg, 1882Dwarf tarantula1SpeciesTaxom


Genera for Florence (Snohomish County)
5 Genera with 5 Species
Amaurobius Koch, 18301SpeciesTaxom
Antrodiaetus Ausserer, 1884Red Folding Door Trapdoor Spider1SpeciesTaxom
Archaeodictyna Caporiacco, 18711SpeciesTaxom
Dysdera Latreille, 19101SpeciesTaxom
Hexura Simon, 18841SpeciesTaxom


Species list for Florence (Snohomish County)
5 Species
Amaurobius ferox Walckenaer, 1830Black lace-weaver
Antrodiaetus pacificus Simon, 1884
Archaeodictyna ammophila Menge, 1871
Dysdera nomada Eugène Simon, 1910Stocky cerith
Hexura picea Simon, 1884White meadowbeauty

Subnodes of Megoperculata with occurrences in Florence (Snohomish County)
OrderAraneae
Clerck, 1757
Spider, Spiders, True Spiders		5
5
5		Families
Genera
Species
Taxom