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The Bagworm Moth (''Dahlica triquetrella'') is a moth of the Psychidae family. It is found in Europe and North America. The wingspan is 9–13 mm for males. Females are wingless. Though winged males occur in some sites in Europe, only the parthenogenetic wingless female form of Dahlica triquetrella has been recorded in Britain. The adult lives a very short time. The larvae feed on lichen and algae on trunks, rocks and old walls. This diet has to be supplemented by dead insects for development to be successful. The larva is active as the snow melts in Europe. ==Gallery== File:Dahlica triquetrella1.jpg File:Dahlica triquetrella2.jpg File:Dahlica triquetrella3.jpg 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「Dahlica triquetrella」の詳細全文を読む スポンサード リンク
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