In this category of artificial flies you will find indispensable nymph patterns for the hatching of large May flies. At the moment when big beige and yellow colored May flies fly over the water and fish do not react too much, you will surely be able to catch fish on the Mayfly Nymphs when you will fish in the water column and under the surface. These flies are excellent on the river and the lake when fishing trout and chub from coarse waters.
