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Mayfly Species Eurylophella funeralis (Chocolate Dun)

According to the Leonards in Mayflies: An Angler's Study of Trout Water Ephemeroptera , this species and Eurylophella bicolor are the two most likely hatches for fly fishermen to encounter in Michigan. Based on my sampling, it seems other species may be more prevalent elsewhere.  

Where & When


Regions: East, Midwest

Time Of Year (?): May and June


Hatching Behavior


Time Of Day (?): Early afternoon




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