White fly (ephoron leukon) FAMILY polymitarcidae GENUS ephoron SPECIES leukon NAME White Fly HOOK SIZE DRY #12 2x long HOOK SIZE WET #12 WATER TEMPERATURE HATCH DATE Aug 15 - Sept 25 HATCH TIME Evening SPECIES LIFE STAGE HOOK BODY COLOR WING COLOR TAIL COLOR leukon dun #12 cream white medium texture medium gray leukon spinner #12 clear antron lite gray White fly fishing tips Water Type Slower sections Nymph Dun Emerger come off in clouds. Spinner Leukon duns mate soon after hatching followed thereafter by oviposting. Return to Trout Entomology Return to flyfishing