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The orange swift (''Triodia sylvina''), also known as "orange moth" (but see ''Angerona prunaria''), is a species of moth belonging to the family Hepialidae. It was previously placed in the genus ''Hepialus''. It is distributed throughout Europe. This species has a wingspan of 32–48 mm. The male has rich orange forewings with two white bars forming a "v" shape. The hindwings are dark brown. The female is similar but generally larger and less brightly coloured. It flies at night from June to September and is attracted to light. The larva feeds on the roots of various plants including bracken, dandelion, dock, hop and Viper's Bugloss. This species overwinters twice as a larva. # ''The flight season refers to the British Isles. This may vary in other parts of the range.'' == References == *Chinery, Michael ''Collins Guide to the Insects of Britain and Western Europe'' 1986 (Reprinted 1991) *Skinner, Bernard ''Colour Identification Guide to Moths of the British Isles'' 1984 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「Orange swift」の詳細全文を読む スポンサード リンク
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