Species list, Checklist of Family Theridiidae (Cobweb And Widow Spiders) for Pacific (Pierce County, Washington, 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

Taxonomy & Distribution
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INSECTOIDGERENGDARK LIGHT

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Checklist for Family Theridiidae Sundevall, 1833 (Cobweb And Widow Spiders)
and region Pacific (Pierce County, Washington, USA)

Class	Arachnida Lamarck, 1801 Arachnids	25 47 59	Families Genera Species	Taxom
Subclass	Micrura Ehrenberg, 1831	21 42 55	Families Genera Species	Taxom
Infraclass	Megoperculata Börner, 1902	20 41 54	Families Genera Species	Taxom
Order	Araneae Clerck, 1757 Spider, Spiders, True Spiders	20 41 54	Families Genera Species	Taxom
Suborder	Araneomorphae Smith, 1902 True Spiders	19 40 53	Families Genera Species	Taxom
Infraorder	Araneomorphi Smith, 1902	19 40 53	Families Genera Species	Taxom
Superfamily	Araneoidea Latreille, 1806	5 24 31	Families Genera Species	Taxom
Family	Theridiidae Sundevall, 1833 Cobweb And Widow Spiders, Cobweb spider, Cobweb spiders	4 4	Genera Species	Taxom

Genera for Pacific (Pierce County Washington)
4 Genera with 4 Species

Enoplognatha Pavesi, 1758		1	Species	Taxom
Robertus O. P.-Cambridge, 1933		1	Species	Taxom
Rugathodes Archer, 1882		1	Species	Taxom
Theridion Walckenaer, 1833	Tangle-Web Spiders	1	Species	Taxom

Species list for Pacific (Pierce County Washington)
4 Species

Enoplognatha ovata (Clerck, 1758)	⇒ Enoplognatha latimana Hippa & Oksala, 1982
Robertus vigerens Ralph Vary C..., 1933
Rugathodes sexpunctatus James Henry ..., 1882
Theridion varians Carl Wilhelm..., 1833	Red spruce

Subnodes of Theridiidae with occurrences in Pacific (Pierce County Washington)

Subfamily	Pholcommatinae Simon, 1894	2 2	Genera Species	Taxom
Subfamily	Theridiinae Sundevall, 1833	2 2	Genera 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