Latrodectus variolus Walckenaer, 1837
northern black widow
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FAMILY: THERIDIIDAE Sundevall, 1833 Genus: Latrodectus Walckenaer, 1805 Species: Latrodectus variolus Walckenaer, 1837  |
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Common Names
Family Common Name:
cobweb weavers
Genus Common Name:
widow spiders
Species Common Name:
northern black widow
Point Collections & Seasonality
Global Distribution: USA, Canada
Nearctic States & Provinces: 
IL OK SC
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Seasonality
Specimen Search
Specimen list |
, 2
Natural History & Image(s)
Feeding Guild:† space web builders
†Feeding guild when noted defined by Uetz, G. W., J. Halaj, and A. B. Cady. 1999. Guild structure of spiders in major crops. Journal of Arachnology 27:270-280. PDF
Habitat (published): (not yet published or unknown)
Life & Natural History: (not yet recorded or unknown)
Image(s) of Habitus:
Details About Males
Description: (not yet recorded or unknown)
| Male Dimensions: (Dimensions not yet available) |
Image of External Male Genitalia: email an image |
Details About Females
Description: (not yet recorded or unknown)
| Female Dimensions: (Dimensions not yet available) |
Image of Epigynum: email an image |
Synonyms and Chresonyms‡
| Latrodectus variolus Walckenaer 1837 |
| Latrodectus curacaviensis Levi 1959 |
| Latrodectus variolus McCrone & Levi 1964 |
| Latrodectus variolus Kaston 1970 |
Taxonomic References‡
Kaston, B. J. 1970. Comparative biology of American black widow spiders. Trans. San Diego Soc. nat. Hist. 16: 33-82.
Levi, H. W. 1959. The spider genus Latrodectus (Araneae, Theridiidae). Trans. Am. microsc. Soc. 78: 7-43. 
McCrone, J. D. & H. W. Levi. 1964. North American widow spiders of the Latrodectus curacaviensis group (Araneae: Theridiidae). Psyche, Camb. 71: 12-27. 
Walckenaer, C. A. 1837. Histoire naturelle des insectes. Aptères. Paris, 1: 1-682.
‡Nomenclature and taxonomic references from the World Spider Catalog
Latest Literature from uBio: 