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Mayfly Species Ecdyonurus simpliciodes (Western Ginger Quill)

This is an important Western hatch.  

Where & When


Region: West

Time Of Year (?): Mid-July to late September

This is one of the most widely distributed of the former Heptagenia species in the West.

Hatching Behavior


The emergence is implied to be of some importance, but not much has been written about it in the books I've studied.

Spinner Behavior


Time Of Day: Evening, sometimes morning

The spinner fall is the most important activity of this species for the angler.



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