Ephemeroptera(redirected from ephemeropterans)
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Related to ephemeropterans: Ephemeroptera
Ephemeropteraan order of the class Insecta, containing the mayflies. They are EXOPTERGYOTES, and spend the great majority of their life in the nymphal stage and only a few minutes or hours in the nonfeeding, adult stage.
Collins Dictionary of Biology, 3rd ed. © W. G. Hale, V. A. Saunders, J. P. Margham 2005