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Blue-tailed damselfly
The blue-tailed damselfly (''Ischnura elegans'') is a European damselfly.
==Males==
Adult male blue-tailed damselflies have a head and thorax patterned with blue and black. They have a largely black abdomen with very narrow pale markings where each segment joins the next. Segment eight, however, is entirely pale blue. At rest, the wings of most damselfly species are held back together, unlike dragonflies, which rest with their wings out flat. The thorax of juvenile males has a green tinge. A male can try to interfere with a mating pair, by attaching itself to the mating male.
File:Blue-tailed damselfly (Ischnura elegans) immature male.jpg|Immature male
File:Blue-tailed Damselfies (Ischnura elegans) two males and female (typica).jpg|Two males and a female form ''typica''
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「Blue-tailed damselfly」の詳細全文を読む
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