Mayfly
(noun)
An aquatic insect that hatches in large numbers in May and early June.
Origin:
Early 17th century; from may + fly, it is an aquatic insect that hatches in large numbers in may and early june.
Examples:
- The mayfly hatch draws large numbers of fly fisherman to the river.
- The mayflies are an important food source for fish.
- The mayfly's brief adult life is spent mainly in mating and laying eggs.
- The mayflies are known for their large, fragile wings and delicate bodies.
- The mayfly is a type of ephemeroptera, which means it has a short lifespan as an adult.