Mosquito Mayfly Every serious fly fisher should carry a selection of flying Fly in their fly box at the first sign of new leaves on trees and bushes. These tender leaves attract aphids that leave sweet droppings ants love to sip. Its also a signal that there will soon be a flying ant fall and trout go nuts over flying ants. Experienced workers hand tied fishing flies FLY RECIPE: Hook Size: #10 #14 #16 Products include: 6Pcs