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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 Crataerina pallida ： ウィキペディア英語版 Crataerina pallida ''Crataerina pallida'', the swift lousefly, is a species of biting fly in the family of louse flies Hippoboscidae. These flies are commonly encountered in the nests of the common swift (''Apus apus'') in Europe and Asia. The lousefly spends its entire life cycle associated with swifts. The adult lousefly produce larvae in the late summer months which then pupate and lie dormant during the winter months inside the vacated swift nest. These parasites have highly aggregated population distribution and high levels of host prevalence. The adult fly then hatch out in spring when the first swift eggs are laid, by the returning adults, and feed on the blood of the nestlings and the adults, sucking about 25 mg of blood every 5 days. They can be a serious pest of adult and nestling swifts. ''Crataerina pallida'' is vertically transmitted ectoparasite, in that it is passed from parent host on to offspring. ''C. pallida'' are relatively benign, because their own species fitness will depend on successful reproduction of swifts. Evidence suggests that ''C. pallida'' had little if any effect on nestling growth or fledging success rate. Image:ApusApusKlausRoggel06.jpg|Eggs of the common swift and (below) pupae of ''Crataerina pallida'' == 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「Crataerina pallida」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.