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Mayfly Species Eurylophella lutulenta (Chocolate Dun)

The only account of this species I've found in angling literature is in the Leonards' Mayflies of Michigan Trout Streams. They remark that it is the size of Ephemerella subvaria, much larger than any Eurylophella nymphs I've collected, and its color is a "rather bright yellowish-brown."  

Where & When


Regions: East, Midwest

Time Of Year (?): Late May through early June

Preferred Waters: Lakes and large rivers


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