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The green darner or common green darner〔Dunkle, S.W. (2000). ''Dragonflies through Binoculars: A Field Guide to Dragonflies of North America.'' New York:Oxford University Press, p.33.〕 (''Anax junius''), after its resemblance to a darning-needle, is a species of dragonfly in the family Aeshnidae. One of the most common and abundant species throughout North America and it ranges south to Panama. It is well known for its great migration distance from the northern United States south into Texas and Mexico. It also occurs in the Caribbean, Tahiti, and Asia from Japan to mainland China.〔University of Michigan Zoology (''Anax junius'' )〕 It is the official insect for the state of Washington in the United States. The green darner is one of the largest dragonflies existent: males grow to in length with a wingspan of up to .〔 Females oviposit in aquatic vegetation, eggs laid beneath the water surface. Nymphs (naiads) are aquatic carnivores, feeding on insects, tadpoles and small fish. Adult darners catch insects on the wing, including ant royalty, moths, mosquitoes and flies. File:Img 041538 mating anax junius.jpg|Mating, wheel position File:Anax_junius-Laying_eggs-2.jpg|Egg-laying File:Dragonfly_Common_Green_Darner_Female_Anax_junius_2010-04-18.jpg|Female File:Common Green Darner, female.jpg|Uncommon blue form female, Ottawa, Canada ==References== 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「Green darner」の詳細全文を読む スポンサード リンク
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