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''Orthetrum caledonicum'', the blue skimmer, is a common Australian dragonfly. Males have a powder blue thorax and abdomen pruinescent blue when mature. The females are brownish grey in colour while the teneral are yellow with black markings. They are medium in size, with a body length of 4.5 cm (2 in) and a wingspan of 7 cm (3 in). The species is widespread throughout mainland Australia and extending to Tasmania. It is also found in New Guinea, New Caledonia, Loyalty Islands and Lesser Sunda Islands. It inhabits a range of still and flowing water habitats including temporary waters. ==Gallery== File:Blue Skimmer Dragonfly.jpg|Adult in Margaret River, Western Australia File:Orthetrum caledonicum Gibb Creek.jpg|Male blue skimmer side aspect, hind wing damage File:Orthetrum caledonicum 5270.jpg|Mature female 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「Orthetrum caledonicum」の詳細全文を読む スポンサード リンク
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