Latrodectus mactans was first described by Johan Christian Fabricius in 1775, placing it in the genus Aranea.[1][3] It was transferred to the genus Latrodectus in 1837 by Charles Walckenaer and is currently placed in the Theridiidae family of the order Araneae.[1] The species is closely related to Latrodectus Hesperus (western black widow) and Latrodectus variolus (northern black widow). Members of the three species are often confused with the genus Steatoda, the false widows. Prior to 1970, when the current taxonomic divisions for North American black widows were set forth by Kaston,[4] all three varieties were classified as a single species, L. mactans. As a result, there exist numerous references which claim that "black widow" (without any geographic modifier) applies to L. mactans alon
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| - Latrodectus mactans was first described by Johan Christian Fabricius in 1775, placing it in the genus Aranea.[1][3] It was transferred to the genus Latrodectus in 1837 by Charles Walckenaer and is currently placed in the Theridiidae family of the order Araneae.[1] The species is closely related to Latrodectus Hesperus (western black widow) and Latrodectus variolus (northern black widow). Members of the three species are often confused with the genus Steatoda, the false widows. Prior to 1970, when the current taxonomic divisions for North American black widows were set forth by Kaston,[4] all three varieties were classified as a single species, L. mactans. As a result, there exist numerous references which claim that "black widow" (without any geographic modifier) applies to L. mactans alon
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| - Latrodectus mactans was first described by Johan Christian Fabricius in 1775, placing it in the genus Aranea.[1][3] It was transferred to the genus Latrodectus in 1837 by Charles Walckenaer and is currently placed in the Theridiidae family of the order Araneae.[1] The species is closely related to Latrodectus Hesperus (western black widow) and Latrodectus variolus (northern black widow). Members of the three species are often confused with the genus Steatoda, the false widows. Prior to 1970, when the current taxonomic divisions for North American black widows were set forth by Kaston,[4] all three varieties were classified as a single species, L. mactans. As a result, there exist numerous references which claim that "black widow" (without any geographic modifier) applies to L. mactans alone. Common usage of the term "black widow" makes no distinction between the three species.
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