Dayfly and Shadfly

Dayfly noun - Slender insect with delicate membranous wings having an aquatic larval stage and terrestrial adult stage usually lasting less than two days.

Shadfly is a synonym for dayfly. In some cases you can use "Shadfly" instead a noun "Dayfly".

Shadfly noun - Slender insect with delicate membranous wings having an aquatic larval stage and terrestrial adult stage usually lasting less than two days.

Dayfly is a synonym for shadfly. You can use "Dayfly" instead a noun "Shadfly".