The adults of many mayfly species don't even have mouths and digestive systems, because they don't live long enough to need them. Mayflies fly in swarms, and mate in flight. After mating and laying eggs, mayfly adults die and fall back into the water, becoming food for fish, frogs, and other aquatic life.
In respect to this, how long does a mayfly lives for?
The subimago stage does not survive for long, rarely for more than 24 hours. In some species, it may last for just a few minutes, while the mayflies in the family Palingeniidae have sexually mature subimagos and no true adult form at all.
Do mayflies bite you?
Mayflies don't bite. They don't sting. They don't have mouths, so they don't even eat. They can live with that because they die in a day.
What does a mayfly eat?
None of the Mayfly species feed during their short adult lives because they have only vestigial mouthparts. The aquatic immature Mayflies feed by scavenging small pieces of plants or algae that live on rocks under the water.
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