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翻訳と辞書　辞書検索 [ 開発暫定版 ] スポンサード リンク Pisaurina brevipes ： ウィキペディア英語版 Pisaurina brevipes ''Pisaurina brevipes'' is a species of "nursery web spider" that is found in the eastern half of the North American continent, from Ontario down to Florida and west to Kansas.〔"The Nearctic Spider Genus ''Pisaurina'' (Pisauridae), by James E. Carico. In ''Psyche'' magazine, for December 1972, p. 305〕 These spiders are distinguished from the rather similar ''Pisaurina mira'' spiders by having relatively shorter legs. The ratio of leg length I to cephalothorax length is less than 2.0 in males and less than 1.4 in females, whereas for ''P. mira'' the leg length I is more than 2.0 in males and more than 1.4 in females.〔Carico, p. 299〕 The edges of the abdominal band are more straight edged than in ''P. mira''. The natural history of this species is not well known. The only records known to Carico seem to indicate that they favor grasslands, bogs, and swamps. These spiders rear their young in nurseries, which are bell-like structures of spider web laid out in a sheet form. These spiders are difficult to distinguish from ''P. mira,'' unless the pedipalps of the males are examined.〔Carico, p. 306〕 The reason is that their coloration patterns fall within the natural range of variation of the more numerous ''P. mira'' spiders.〔Carico, p. 306.〕 The females of ''P. brevipes'' have a body length of 11 to 13 mm, and the males are about 10.8 mm.〔Benjamin Julian Kaston, ''Spiders of Connecticut'', p. 297.〕 ==References== 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Pisaurina brevipes」の詳細全文を読む スポンサード リンク 翻訳と辞書 : 翻訳のためのインターネットリソース Copyright(C) kotoba.ne.jp 1997-2016. All Rights Reserved.