Species list, Checklist of Subfamily Latrodectinae for LaSalle County (Northwestern Illinois, Illinois, USA)

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Checklist for Subfamily Latrodectinae Petrunkevitch, 1928
and region LaSalle County (Northwestern Illinois, Illinois, USA)

Class	Arachnida Lamarck, 1801 Arachnids	48 146 211	Families Genera Species	Taxom
Subclass	Micrura Ehrenberg, 1831	43 139 202	Families Genera Species	Taxom
Infraclass	Megoperculata Börner, 1902	26 119 187	Families Genera Species	Taxom
Order	Araneae Clerck, 1757 Spider, Spiders, True Spiders	26 119 187	Families Genera Species	Taxom
Suborder	Araneomorphae Smith, 1902 True Spiders	24 116 181	Families Genera Species	Taxom
Infraorder	Araneomorphi Smith, 1902	24 116 181	Families Genera Species	Taxom
Superfamily	Araneoidea Latreille, 1806	4 44 70	Families Genera Species	Taxom
Family	Theridiidae Sundevall, 1833 Cobweb And Widow Spiders, Cobweb spider, Cobweb spiders	9 16	Genera Species	Taxom
Subfamily	Latrodectinae Petrunkevitch, 1928	2 4	Genera Species	Taxom

Genera for LaSalle County
2 Genera with 4 Species

Latrodectus Walckenaer, 1837	Black widow spider	2	Species	Taxom
Steatoda Sundevall, 1802	False black widows	2	Species	Taxom

Species list for LaSalle County
4 Species

Latrodectus mactans (Fabricius, 1775)	⇒ Latrodectus tredecimguttatus Rossi, 1790
Latrodectus variolus (Walckenaer, 1837)	⇒ Latrodectus hesperus Chamberlin &..., 1935
Steatoda borealis Nicholas Mar..., 1850	Boreal Combfoot
Steatoda triangulosa Walckenaer, 1802	Triangulate bud spider