Species list, Checklist of Family Theridiidae (Cobweb And Widow Spiders) for Ravalli County (Montana, USA)

Ants	Arachnids
Bees	Beetles
Booklice	Bugs
Bumblebees	Butterflies
Cicadas	Crane flies
Dragonflies	Earwigs
Flies	Isopods
Locusts	Mantises
Mayflies	Mosquitoes
Myriapods	Net-winged
Plant-parasitic	Scorpion flies
Termites	Wasps

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INSECTOIDGERENGDARK LIGHT

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Checklist for Family Theridiidae Sundevall, 1833 (Cobweb And Widow Spiders)
and region Ravalli County (Montana, USA)

Class	Arachnida Lamarck, 1801 Arachnids	33 68 100	Families Genera Species	Taxom
Subclass	Micrura Ehrenberg, 1831	28 62 95	Families Genera Species	Taxom
Infraclass	Megoperculata Börner, 1902	16 49 84	Families Genera Species	Taxom
Order	Araneae Clerck, 1757 Spider, Spiders, True Spiders	16 49 84	Families Genera Species	Taxom
Suborder	Araneomorphae Smith, 1902 True Spiders	15 48 82	Families Genera Species	Taxom
Infraorder	Araneomorphi Smith, 1902	15 48 82	Families Genera Species	Taxom
Superfamily	Araneoidea Latreille, 1806	4 14 21	Families Genera Species	Taxom
Family	Theridiidae Sundevall, 1833 Cobweb And Widow Spiders, Cobweb spider, Cobweb spiders	4 6	Genera Species	Taxom

Genera for Ravalli County
4 Genera with 6 Species

Latrodectus Walckenaer, 1935	Black widow spider	1	Species	Taxom
Parasteatoda Archer, 1841	Comb-Clawed Spider	1	Species	Taxom
Steatoda Sundevall, 1901	False black widows	2	Species	Taxom
Theridion Walckenaer, 1901	Tangle-Web Spiders	2	Species	Taxom

Species list for Ravalli County
6 Species

Latrodectus hesperus Chamberlin &..., 1935	Western black widow
Parasteatoda tepidariorum C. L. Koch, 1841	American house false widow spider
Steatoda albomaculata (De Geer, 1778)	⇒ Chrysso albomaculata O. P.-Cambridge, 1882
Steatoda grandis (Richard C. B..., 1901)	⇒ Steatoda mexicana Herbert Walt..., 1957
Theridion differens (James Henry ..., 1882)	⇒ Theridion glaucescens Lawrence Becker, 1879
Theridion neomexicanum Richard C. B..., 1901

Subnodes of Theridiidae with occurrences in Ravalli County

Subfamily	Latrodectinae Petrunkevitch, 1928	2 3	Genera Species	Taxom
Subfamily	Theridiinae Sundevall, 1833	1 2	Genus Species	Taxom

Theridiidae (Sundevall 1833)

Links, sources and further information

Theridiidae at artfakta.se
Theridiidae at biodiversity.org.au
Theridiidae at dyntaxa.se
Theridiidae at gbif.org
Theridiidae at irmng.org
Theridiidae at itis.gov