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Steatoda nobilis
''Steatoda nobilis'' is a spider in the genus ''Steatoda'', known in the United Kingdom as the noble false widow and often referred to as the false widow. As the common name indicates, the spider superficially resembles and is frequently confused for the black widow and other spiders in the genus ''Latrodectus'', which can have medically significant venom. ''Steatoda nobilis'' is native to Madeira and the Canary Islands from where it allegedly spread to Europe, and arrived in England before 1879, perhaps through cargo sent to Torquay. In England it has a reputation as one of the few local spider species which is capable of inflicting a painful bite to humans, with most bites resulting in symptoms similar to a bee or wasp sting.〔(【引用サイトリンク】 publisher =Natural History Museum )〕
==Description==
''Steatoda nobilis'' has a brown bulbous abdomen with cream coloured markings that are often likened to the shape of a skull. The legs are reddish-orange.〔(【引用サイトリンク】 publisher =Natural History Museum )〕 Females range in size from about 9.5 to 14 mm in size, while males are 7 to 11 mm.〔 Males are able to produce stridulation sounds during courtship, by scraping 10-12 teeth on the abdomen against a file on the rear of the carapace.
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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