The giant Salmonflies of the Western mountains are legendary for their proclivity to elicit consistent dry-fly action and ferocious strikes.
I collected this female dun together with a female spinner, a male dun, and a larger, damaged male dun.
This mayfly was collected from Mystery Creek #23 in New York on September 6th, 2006 and added to Troutnut.com by Troutnut on October 3rd, 2006.
At least one of us believes that a thorough search of suitable, higher elevation, cold streams in the White Mountains of New Hampshire, the Adirondacks of New York, and the Gaspe area of Quebec should result in the discovery of several new records [of frisoni].
The habitat association of E. frisoni with cold (even in summer), high gradient, minimally disturbed streams at or above 1200' (~365m) could be used to identify some of the best high elevation lotic habitats for conservation purposes. Variation among the New England subset of the eastern Nearctic genus Epeorus strongly points to the need for a full revision of this genus.