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mayfly

mayfly

4 7.5
A small insect with thin wings that lives only a short time as an adult
  • noun
  • /ˈmeɪˌflaɪ/
translation icon : efímera
  • Mayflies are unique insects that only live for a couple of days as mayflies.
  • mayfly hatch
  • mayfly nymphs
  • swarm of mayflies

You know, insects like mayflies who live just for a brief period.

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Examples

  • While some endure year after year, others have the lifespan of a mayfly.

    Academic text (2011)
  • Plus, nearly all mayflies are a staple of freshwater fish diets.

  • You know, insects like mayflies who live just for a brief period.

  • You could see the water all pocked and busy, but it wasn't rain yet, only gnats and mayflies and the lapping rings of fish sipping off the surface.

    Fiction book (1996)
  • The sky was cloudless, blue as periwinkle; the air, warm and summery, seethed with insects, mayflies, and yellow-winged butterflies.

    Fiction book (1994)
  • During the summer, large groups of mayflies can often be seen flitting around the riverbank.

  • The presence of mayflies indicates that the water is clean and well-oxygenated.

Synonyms

ephemeropteran
vsmayfly
  • Specialized
9.9

An insect like a mayfly that lives only a few hours as an adult

is the common everyday name rather than the scientific term
dayfly
vsmayfly
9.2

A small insect with thin wings whose young live in water and adults live less than two days

is the more widely used common name instead of this alternative
shadfly
vsmayfly
9.9

An insect with thin clear wings whose young live in water and adults live only a few days

is the standard common name used more widely than this regional term

Idioms

life of a mayfly
  • Informal
7.7

A very short time before something ends

Surface Forms

mayfly singular
mayflies plural

Morphology

mayfly = May + fly (transparent) = May + fly

A straightforward compound of the month 'May' and the insect 'fly', indicating a fly associated with May.

Etymology

Mayfly comes from the month May and the common word fly meaning 'insect'. These small insects often appear in May and the adult stage usually lasts only a day or two, so mayfly reminds us that this is a very short-lived insect.