#ephemerid__ephemeropteran  short-lived insect
  supertype:  insect  small air-breathing arthropod
  member of:  order_Ephemeroptera
  subtype:  Plectophera  in some former classifications: name for the Ephemeroptera
  subtype:  mayfly__dayfly__shadfly  slender insect with delicate membranous wings having an aquatic larval stage and terrestrial adult stage usually lasting less than two days

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