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''Phylloporia bistrigella'' is a moth of the Incurvariidae family. It is found in western, northern and central Europe and north-eastern North America. The wingspan is 7–9 mm. The larvae feed on ''Betula'' species. They mine the leaves of their host plant, usually encircling a good part of the leaf, and finishing in a whitish blotch with scattered frass. It then cuts out an oval case from this position and drops to the ground. The leaf area enclosed within the mine becomes paler and vacated mines are quite distinctive. ==External links== *(Swedish Moths ) *(UKmoths ) *(Images ) *(Bug Guide ) *(Fauna Europaea ) 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「Phylloporia bistrigella」の詳細全文を読む スポンサード リンク
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