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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 Hemilepistus reaumuri ： ウィキペディア英語版 Hemilepistus reaumuri ''Hemilepistus reaumuri'' is a species of woodlouse that lives in and around the deserts of North Africa and the Middle East, "the driest habitat conquered by any species of crustacean".〔 It reaches a length of and a width of up to , and has seven pairs of legs which hold its body unusually high off the ground. The species was described in the ''フランス語:Description de l'Égypte'' after the French Campaign in Egypt and Syria of 1798–1801, but was first formally named by Henri Milne-Edwards in 1840 as ''Porcellio reaumuri''. It reached its current scientific name in 1930 after the former subgenus ''Hemilepistus'' was raised to the rank of genus. ''H. reaumuri'' occurs at great population densities and fills an important niche in the desert ecosystem. It feeds on plant leaves, obtains most of its water from moisture in the air and sand, and is in turn an important prey item for the scorpion ''Scorpio maurus''. ''H. reaumuri'' is only able to survive in such arid conditions because it has developed parental care of its offspring. Adults dig burrows which are inhabited by family groups, which are recognised using pheromones. The burrows are deep, and the woodlice retreat to the relatively cool and moist conditions of the burrow when surface conditions are unfavourable. The territorial limit of each colony is marked with a faecal embankment. ==Description== ''Hemilepistus reaumuri'' is approximately long, and wide. In common with other woodlice, it has seven pairs of legs and a pair of conspicuous antennae. It is classified in the family Trachelipodidae; within that family, it is placed in the genus ''Hemilepistus'' because of the presence of tubercles only on the head and the nearby parts of the thorax.〔 ''H. reaumuri'' differs from other desert woodlice in a number of respects. It is crepuscular, while other species are nocturnal.〔 Apart from at the highest temperatures, it is also positively phototactic (is attracted to sunlight), while other species are negatively phototactic (move away from bright light).〔 Compared to other woodlice, ''H. reaumuri'' walks in an unusual manner, with its body held high off the ground. 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「Hemilepistus reaumuri」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.