Species list, Checklist of Family Theridiidae (Cobweb And Widow Spiders) for Sonora (Northwest Mexico, Mexico)

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 Sonora (Northwest Mexico, Mexico)

Class	Arachnida Lamarck, 1801 Arachnids	81 157 194	Families Genera Species	Taxom
Subclass	Micrura Ehrenberg, 1831	63 120 149	Families Genera Species	Taxom
Infraclass	Megoperculata Börner, 1902	39 85 117	Families Genera Species	Taxom
Order	Araneae Clerck, 1757 Spider, Spiders, True Spiders	37 82 114	Families Genera Species	Taxom
Suborder	Araneomorphae Smith, 1902 True Spiders	34 79 108	Families Genera Species	Taxom
Infraorder	Araneomorphi Smith, 1902	33 78 106	Families Genera Species	Taxom
Superfamily	Araneoidea Latreille, 1806	4 15 19	Families Genera Species	Taxom
Family	Theridiidae Sundevall, 1833 Cobweb And Widow Spiders, Cobweb spider, Cobweb spiders	4 6	Genera Species	Taxom

Genera for Sonora
4 Genera with 6 Species

Anelosimus Simon, 1924	Social cobweb spiders	1	Species	Taxom
Latrodectus Walckenaer, 1775	Black widow spider	3	Species	Taxom
Steatoda Sundevall, 1838	False black widows	1	Species	Taxom
Theridion Walckenaer, 1963	Tangle-Web Spiders	1	Species	Taxom

Species list for Sonora
6 Species

Anelosimus analyticus Ralph Vary C..., 1924
Latrodectus geometricus C. L. Koch, 1841	Brown black widow
Latrodectus hesperus Chamberlin &..., 1935	Western black widow
Latrodectus mactans (Fabricius, 1775)	⇒ Latrodectus tredecimguttatus Rossi, 1790
Steatoda grossa C. L. Koch, 1838	Brown house spider
Theridion opuntia Herbert Walt..., 1963

Subnodes of Theridiidae with occurrences in Sonora

Subfamily	Latrodectinae Petrunkevitch, 1928	2 4	Genera Species	Taxom
Subfamily	Theridiinae Sundevall, 1833	1 1	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