Mayfly

phylum	Arthropoda	Mayflies or shadflies are insects belonging to the order Ephemeroptera. They have been placed into an ancient group of insects termed the Palaeoptera, which also contains dragonflies and damselflies. They are aquatic insects whose immature stage (called "naiad" or, colloquially, "nymph") usually lasts one year in fresh water. The adults are short-lived, from a few minutes to a few days, depending on the species. About 2,500 species are known worldwide. For more information, visit the Wikipedia entry. Get back to Insects
Class	Insecta
superorder	Ephemeropteroidea
order	Ephemeroptera

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