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Checklist for Infraorder Araneomorphi Smith, 1902
and region San Lorenzo (Alameda County, California, USA)


Class
 
Arachnida
Lamarck, 1801
Arachnids
4
6
6
Families
Genera
Species
 
Taxom
 

Subclass
 
Micrura
Ehrenberg, 1831
4
6
6
Families
Genera
Species
 
Taxom
 

Infraclass
 
Megoperculata
Börner, 1902
3
5
5
Families
Genera
Species
 
Taxom
 

Order
 
Araneae
Clerck, 1757
Spider, Spiders, True Spiders
3
5
5
Families
Genera
Species
 
Taxom
 

Suborder
 
Araneomorphae
Smith, 1902
True Spiders
3
5
5
Families
Genera
Species
 
Taxom
 

Infraorder
 
Araneomorphi
Smith, 1902
3
5
5
Families
Genera
Species
 
Taxom
 


List of families for San Lorenzo (Alameda County)
3 Families width 5 Species
Corinnidae Karsch, 1880Ant-like Sac Spiders1SpeciesTaxom
Araneidae Simon, 1895Golden orb web spiders1SpeciesTaxom
Theridiidae Sundevall, 1833Cobweb And Widow Spiders3SpeciesTaxom


Genera for San Lorenzo (Alameda County)
5 Genera with 5 Species
Apochinomma Pavesi, 18961SpeciesTaxom
Araneus Clerck, 1859Angulate & roundshouldered orbweavers1SpeciesTaxom
Argyrodes Simon, 1842Dewdrop spiders1SpeciesTaxom
Latrodectus Walckenaer, 1775Black widow spider1SpeciesTaxom
Steatoda Sundevall, 1838False black widows1SpeciesTaxom


Species list for San Lorenzo (Alameda County)
5 Species
Apochinomma formica Eugène Simon, 1896
Araneus balanus Doleschall, 1859
Argyrodes argyrodes (Walckenaer, 1842)⇒ Neospintharus trigonum Nicholas Mar..., 1850
Latrodectus mactans (Fabricius, 1775)⇒ Latrodectus tredecimguttatus Rossi, 1790
Steatoda grossa C. L. Koch, 1838Brown house spider