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Shadow darner
The shadow darner (''Aeshna umbrosa'') is a species dragonfly in the family Aeshnidae. It is found in almost all of Canada and most states in the United States.
== Identification ==
The shadow darner is a large dragonfly with a length of . The base is brownish black in color. Greenish crescent-shaped spots are found at the top of the thorax. The sides of the thorax are marked with two yellowish to yellowish-green diagonal stripes. Its abdomen is marked with bluish green spots. The male shadow darner has paddle-shaped anal appendages.
The naiad of the shadow darner is large in size, with a length of . This naiad is long and slender, which is the typical shape of immature darners. It is mottled green and brown. The shadow darner has a vertically flattened cerci with a spike at the end, which is much brighter than the lance-tipped darner.
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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