Species list, Checklist of Subfamily Latrodectinae for Northwest Mexico (North Mexico, Mexico)

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Checklist for Subfamily Latrodectinae Petrunkevitch, 1928
and region Northwest Mexico (North Mexico, Mexico)

Class	Arachnida Lamarck, 1801 Arachnids	144 395 695	Families Genera Species	Taxom
Subclass	Micrura Ehrenberg, 1831	117 317 527	Families Genera Species	Taxom
Infraclass	Megoperculata Börner, 1902	53 225 438	Families Genera Species	Taxom
Order	Araneae Clerck, 1757 Spider, Spiders, True Spiders	51 221 432	Families Genera Species	Taxom
Suborder	Araneomorphae Smith, 1902 True Spiders	44 211 407	Families Genera Species	Taxom
Infraorder	Araneomorphi Smith, 1902	43 210 405	Families Genera Species	Taxom
Superfamily	Araneoidea Latreille, 1806	5 46 77	Families Genera Species	Taxom
Family	Theridiidae Sundevall, 1833 Cobweb And Widow Spiders, Cobweb spider, Cobweb spiders	11 18	Genera Species	Taxom
Subfamily	Latrodectinae Petrunkevitch, 1928	2 6	Genera Species	Taxom

Genera for Northwest Mexico
2 Genera with 6 Species

Latrodectus Walckenaer, 1775	Black widow spider	3	Species	Taxom
Steatoda Sundevall, 1898	False black widows	3	Species	Taxom

Species list for Northwest Mexico
6 Species

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
Steatoda nobilis Tord Tamerla..., 1875	Cobweb weaver
Steatoda punctulata (Marx, 1898)	⇒ Platnickina tincta Walckenaer, 1802