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Blue-winged Olives

Tiny Baetis mayflies are perhaps the most commonly encountered and imitated by anglers on all American trout streams due to their great abundance, widespread distribution, and trout-friendly emergence habits.

Mayfly Species Ephoron leukon (White Fly)

This is page 10035 of specimens of Ephoron leukon. Visit the main Ephoron leukon page for:

  • The behavior and habitat of Ephoron leukon.


  • Caucci, Al and Nastasi, Bob. 2004. Hatches II. The Lyons Press.
Species Range
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