Pale evening dun (vitreus) Ephemeroptera(Mayfly) Family: heptogeniidae Genus: epeorus Species: vitreus Common Name: Pale Evening Dun Important vitreous Statistics Size: 9-12 mm Water Temp: 55-60 degrees Hook: #12 2x long Emerging: Afternoon - Evening Hatch Date: Early June into July Habitat: Very fast current and pocket water SPECIES LIFE STAGE HOOK BODY COLOR WING COLOR TAIL COLOR vitreus dun #12 light medium gray fine texture lite ginger vitreus spinner #12 clear antron lite ginger vitreus emerger #12 cream antron Pale Evening Dun Comments: Nymph Epeorus nymphs are not generally available to trout as they hatch on the bottom. Emerger Fish the fast water with wet fly imitations and emerger patterns below the surface. Dun If feeding activity switches to the surface, tie on a dun pattern and continue to fish the fast water. Other light colored mayflies are hatching at this time so varify the species if trout are not taking your pattern. Adjust as necessary. Spinner Use a full spent pattern. Cast to the spots where naturals are falling and allow to float with the currents. Mayfly |Entomology |Trout |flyfishing copyright©2000flyfisherusa