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Checklist for Infraclass Megoperculata Börner, 1902
and region Steger (Will County, Illinois, USA)


Class
 		Arachnida
Lamarck, 1801
Arachnids		2
2
2		Families
Genera
Species		 
Taxom
 

Subclass
 		Micrura
Ehrenberg, 1831
2
2
2		Families
Genera
Species		 
Taxom
 

Infraclass
 		Megoperculata
Börner, 1902
2
2
2		Families
Genera
Species		 
Taxom
 


List of families for Steger (Will County)
2 Families width 2 Species
Oonopidae Simon, 1890Dwarf Cell Spiders1SpeciesTaxom
Gnaphosidae (Pocock, 1898)Flat-bellied ground spiders1SpeciesTaxom


Genera for Steger (Will County)
2 Genera with 2 Species
Costarina Platnick & D..., 19681SpeciesTaxom
Drassyllus Chamberlin, 19221SpeciesTaxom


Species list for Steger (Will County)
2 Species
Costarina concinna Chickering, 1968Goblin spiders
Drassyllus orgilus (Chamberlin, 1922)⇒ Drassyllus dromeus Chamberlin, 1922

Subnodes of Megoperculata with occurrences in Steger (Will County)
OrderAraneae
Clerck, 1757
Spider, Spiders, True Spiders		2
2
2		Families
Genera
Species
Taxom