An Order of aquatic INSECTS comprising about 2,500 species worldwide. It is the only insect group with two flying stages, each with relatively large forewings. The immature stage called naiad or nymph lasts one year in fresh water, and the adult stage is shortlived, lasting from a few minutes to a few days, depending on the species. The Ephemeroptera includes mayflies (also called shadflies)

Annotation

for killing Ephemeroptera with insecticides, see note at INSECTICIDES

DUI

D065133 MeSH Browser

CUI

M0587501

Previous indexing

Insects (1963-2014)

History note

2015

Public note

2015