Steatoda americana (Emerton, 1882)
twospotted cobweb spider
| FAMILY: THERIDIIDAE Sundevall, 1833 Genus: Steatoda Sundevall, 1833 Species: Steatoda americana (Emerton, 1882)  |
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Common Names
Family Common Name:
cobweb weavers
Genus Common Name:
none
Species Common Name:
twospotted cobweb spider
Distribution
Global Distribution: USA, Canada, China
Nearctic States & Provinces: (from the Nearctic Spider Database) 
AZ CO IL NH PA SC TX UT
Collection Locales Mapped by Year Collected: (from the Nearctic Spider Database)
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Specimen Search
Specimen list |
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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. PDF
Recorded Habitats: (not yet recorded or unknown)
Life & Natural History: (not yet recorded or unknown)
Seasonality of Specimen Records: (from the Nearctic Spider Database - Requires Flash plug-in - refresh this page if not visible)
Image(s) of Habitus:
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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‡
Taxonomic References‡
Agnarsson, I. 2004. Morphological phylogeny of cobweb spiders and their relatives (Araneae, Araneoidea, Theridiidae). Zool. J. Linnean Soc. 141: 447-626. 
Bishop, S. C. 1925. Singing spiders. New York Stat. Mus. Bull. 260: 65-69.
Emerton, J. H. 1902. The common spiders of the United States. Boston, pp. 1-225.
Emerton, J. H. 1882. New England spiders of the family Theridiidae. Trans. Conn. Acad. Arts Sci. 6: 1-86.
Hu, J. L. & W. G. Wu. 1989. Spiders from agricultural regions of Xinjiang Uygur Autonomous Region, China. Shandong Univ. Publ. House, Jinan, 435 pp.
Kaston, B. J. 1948. Spiders of Connecticut. Bull. Conn. St. geol. nat. Hist. Surv. 70: 1-874.
Keyserling, E. 1886. Die Spinnen Amerikas. Theridiidae. Nürnberg, 2: 1-295.
Knoflach, B. 1996. Die Arten der Steatoda phalerata-Gruppe in Europa (Arachnida: Araneae, Theridiidae). Mitt. schweiz. ent. Ges. 69: 377-404.
Levi, H. W. 1957. The spider genera Crustulina and Steatoda in North America, Central America, and the West Indies (Araneae, Theridiidae). Bull. Mus. comp. Zool. Harv. 117: 367-424.
Paquin, P. & N. Dupérré. 2003. Guide d'identification des araignées de Québec. Fabreries, Suppl. 11 1-251.
Simon, E. 1894. Histoire naturelle des araignées. Paris, 1: 489-760.
Song, D. X., M. S. Zhu & J. Chen. 1999. The Spiders of China. Hebei Sci. Technol. Publ. House, Shijiazhuang, 640 pp.
Zhu, M. S. 1998. Fauna Sinica: Arachnida: Araneae: Theridiidae. Science Press, Beijing, xi + 436 pp.
‡Nomenclature and taxonomic references from the World Spider Catalog
Latest Literature from uBio: 