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Checklist for Superfamily Gnaphosoidea Simon, 1893
and region Butler County (Pennsylvania, USA)


Class
 		Arachnida
Lamarck, 1801
Arachnids		30
44
48		Families
Genera
Species		 
Taxom
 

Subclass
 		Micrura
Ehrenberg, 1831
27
41
44		Families
Genera
Species		 
Taxom
 

Infraclass
 		Megoperculata
Börner, 1902
16
26
34		Families
Genera
Species		 
Taxom
 

Order
 		Araneae
Clerck, 1757
Spider, Spiders, True Spiders		15
25
33		Families
Genera
Species		 
Taxom
 

Suborder
 		Araneomorphae
Smith, 1902
True Spiders		14
24
32		Families
Genera
Species		 
Taxom
 

Infraorder
 		Araneomorphi
Smith, 1902
14
24
32		Families
Genera
Species		 
Taxom
 

Superfamily
 		Gnaphosoidea
Simon, 1893
1
2
2		Family
Genera
Species		 
Taxom
 


List of families for Butler County (Pennsylvania)
1 Family width 2 Species
Gnaphosidae (Pocock, 1898)Flat-bellied ground spiders2SpeciesTaxom


Genera for Butler County (Pennsylvania)
2 Genera with 2 Species
Haplodrassus Chamberlin, 18391SpeciesTaxom
Scotophaeus Simon, 18711SpeciesTaxom


Species list for Butler County (Pennsylvania)
2 Species
Haplodrassus signifer (C. L. Koch, 1839)⇒ Haplodrassus pugnans Simon, 1880
Scotophaeus blackwalli (Thorell, 1871)⇒ Scotophaeus peninsularis Carl Friedri..., 1928

Subnodes of Gnaphosoidea with occurrences in Butler County (Pennsylvania)
FamilyGnaphosidae
Pocock, 1898
Flat-bellied ground spiders, Ground spiders, Running spiders, Stealthy ground spiders		2
2		Genera
Species
Taxom