... Mortonagrion hirosei (discovered in Hinuma, Ibaraki Prefecture in 1971) is a species endemic to Japan, found only in large salty rivers and coastal salt lakes in Honshu, Aciagrion migratum is the only adult overwintering species in this family, Nehalennia speciosa is found only in the marshes of Hokkaido and the Tohoku region and in Ozegahara, Agrion lanceolatum and A. ecornulum are northern highland species shared with eastern Siberia. Ceriagrion melanurum (illustration), C. nipponicum and Mortonagrion selenion are plain species found south of Honshu, and also in central China. The most common of these are the Asian skimmer Ischnura asiatica (illustration), the blue skimmer I. senegalensis , and the black skimmer Cercion calamorum (illustration), and the Asian skimmer Ischnura is known to migrate over the ocean. *Some of the terminology explanations that mention "Mortonagrion selenion" are listed below. Source | Heibonsha World Encyclopedia 2nd Edition | Information |
…ヒヌマイトトンボMortonagrion hirosei(1971年に茨城県の涸沼で発見された)は塩分を含んだ本州の大きな川や海岸の塩湖にだけ発見された日本特産種,ホソミイトトンボAciagrion migratumはこの科で唯一の成虫越冬種,カラカネイトトンボNehalennia speciosaは北海道,東北地方の湿原と尾瀬ヶ原だけに,エゾイトトンボAgrion lanceolatum,キタイトトンボA.ecornulumは北方の高地種で東部シベリアと共通種である。キイトトンボCeriagrion melanurum(イラスト),ベニイトトンボC.nipponicum,モートンイトトンボMortonagrion selenionは本州以南に見られる平地種で,中国の中部にも産する。これらのうちもっともふつうなのは,アジアイトトンボIschnura asiatica(イラスト)とアオモンイトトンボI.senegalensis,クロイトトンボCercion calamorum(イラスト)で,アジアイトトンボは海洋上を移動することも知られている。… ※「Mortonagrion selenion」について言及している用語解説の一部を掲載しています。 出典|株式会社平凡社世界大百科事典 第2版について | 情報 |
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