Blue-winged Olives
Baetis
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.
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This specimen keys to the Epeorus albertae group of species. Of the five species in that group, the two known in Washington state are Epeorus albertae and Epeorus dulciana. Of the two, albertae has been collected in vastly more locations in Washington than dulciana, suggesting it is far more common. On that basis alone I'm tentatively putting this nymph in albertae, with the large caveat that there's no real information to rule out dulciana.
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Taxon's blog & contributions
Taxon's blog & contributions
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About Taxon (Roger Rohrbeck): My interest in identification of aquatic insects developed as a natural byproduct of transitioning from other methods of fishing to fly fishing during my early 40�s. However, it was not until my retirement, which followed a 35-year career in information technology, that I was afforded the opportunity to fully pursue study of aquatic entomology and taxonomy.
Within several years following retirement, I had accumulated an enormity of texts and notes on aquatic entomology and taxonomy. And, it was becoming readily apparent that some manner of organizing and accessing that information was sorely needed, as accurate memory of minutia was definitely not my strong suit.
My initial approach was to organize all the information in an Access database, but it didn�t take long to realize that this approach (alone) would not allow sharing the information with other flyfishers. So, I developed a website, which was initially just many entomology-related pages on the website of the flyfishing club to which I belonged. However, as my ever-increasing need for storage began to cause a problem, I took the big plunge, and got my own domain name and hosting provider. To date my website has received in excess of (300,000) separate visits, from (125) countries, representing all (6) inhabited continents.
Within several years following retirement, I had accumulated an enormity of texts and notes on aquatic entomology and taxonomy. And, it was becoming readily apparent that some manner of organizing and accessing that information was sorely needed, as accurate memory of minutia was definitely not my strong suit.
My initial approach was to organize all the information in an Access database, but it didn�t take long to realize that this approach (alone) would not allow sharing the information with other flyfishers. So, I developed a website, which was initially just many entomology-related pages on the website of the flyfishing club to which I belonged. However, as my ever-increasing need for storage began to cause a problem, I took the big plunge, and got my own domain name and hosting provider. To date my website has received in excess of (300,000) separate visits, from (125) countries, representing all (6) inhabited continents.