Mayflies it's like butterflies they don't eat they floats above water and can be eaten if fish jump for catch them, often they come in swarms and can be eaten by using the suck abillity.

Swarms Edit

They are similar to butterflies and very similar schools. If you eat a swarm, the game will give you a swarm bonus.

ScreenHunter 151 Jan. 02 09.19

Mayflies Swarm