noun
- Plural of dayfly; small insects of the order Ephemeroptera that live for only a short time, typically one day, in their adult winged form.
Usage: Also called mayflies; commonly used in entomology and fishing contexts.; The singular form is 'dayfly,' though 'mayfly' is more standard in modern usage.
Examples
- The river was covered with dayflies during the spring hatch.
- Anglers wait for the dayflies to emerge before casting their lines.
- Dayflies are an important food source for trout and other freshwater fish.
- The brief adult life of dayflies lasts only a few hours to a single day.
- Entomologists study dayflies to understand aquatic ecosystem health.