Nearctic States & Provinces: IL OK SC
Collection Locales Mapped by Year Collected:
The Nearctic Spider Database, http://www.canadianarachnology.org/data/spiders/7828
Latrodectus variolus Walckenaer, 1837
northern black widow
FAMILY: THERIDIIDAE Sundevall, 1833
Genus: Latrodectus Walckenaer, 1805
Species: Latrodectus variolus Walckenaer, 1837
Common Names
Family Common Name:
cobweb weavers
Genus Common Name:
widow spiders
Species Common Name:
northern black widow
Distribution
Global Distribution: USA, Canada
Nearctic States & Provinces:
IL OK SC
Collection Locales Mapped by Year Collected:
Natural History, Phenology & 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.
Recorded Habitats:
(not yet recorded or unknown)
Life & Natural History:
(not yet recorded or unknown)
Seasonality of Specimen Records:
Image(s) of Habitus:
Credit: Murray, Tom
Credit: Bartlett, Troy
Details About Males
Description:
(not yet recorded or unknown)
Image of External Male Genitalia:
(image not yet available)
Details About Females
Description:
(not yet recorded or unknown)
Image of Epigynum:
(image not yet available)
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 accessible at http://research.amnh.org/entomology/spiders/catalog/THERIDIIDAE.html
Other Nearctic Members of Genus Latrodectus Walckenaer, 1805‡‡
L. bishopi Kaston, 1938 ...............USA
L. geometricus C. L. Koch, 1841 ...............Cosmopolitan
L. hesperus Chamberlin & Ivie, 1935 ...............North America, Israel
L. mactans (Fabricius, 1775) ...............probably North America only
‡‡May also include species with Palearctic distribution