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Checklist for Infraclass Megoperculata Börner, 1902
and region Alton (Oregon County, Missouri, USA)


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

Subclass
 		Micrura
Ehrenberg, 1831
6
6
6		Families
Genera
Species		 
Taxom
 

Infraclass
 		Megoperculata
Börner, 1902
4
4
4		Families
Genera
Species		 
Taxom
 


List of families for Alton (Oregon County)
4 Families width 4 Species
Agelenidae (C. L. Koch, 1837)Agelenid Spiders1SpeciesTaxom
Salticidae (Blackwall, 1842)Jumping Spider1SpeciesTaxom
Theridiidae (Sundevall, 1833)Cobweb And Widow Spiders1SpeciesTaxom
Thomisidae Sundevall, 1833Crab Spider1SpeciesTaxom


Genera for Alton (Oregon County)
4 Genera with 4 Species
Coras Simon, 1887Funnel Web Spiders1SpeciesTaxom
Evarcha Simon, 18831SpeciesTaxom
Latrodectus Walckenaer, 1837Black widow spider1SpeciesTaxom
Misumena Latreille, 1758Flower crab spiders1SpeciesTaxom


Species list for Alton (Oregon County)
4 Species
Coras lamellosus (Eugen von Ke..., 1887)⇒ Coras aerialis Muma, 1946
Evarcha hoyi (Peckham & Pe..., 1883)⇒ Evarcha proszynskii Marusik & Lo..., 1998
Latrodectus variolus (Walckenaer, 1837)⇒ Latrodectus hesperus Chamberlin &..., 1935
Misumena vatia Clerck, 1758Crab Spider

Subnodes of Megoperculata with occurrences in Alton (Oregon County)
OrderAraneae
Clerck, 1757
Spider, Spiders, True Spiders		4
4
4		Families
Genera
Species
Taxom