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 one pretty clearly keys to Kogotus, but it also looks fairly different from specimens I caught in the same creek about a month later in the year. With only one species of the genus known in Washington, I'm not sure about the answer to this ID.
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Booger Sulphurs
This name is used in parts of Wisconsin to describe species nearly identical in form and behavior to yellow "Sulphurs" like Ephemerella invaria, but with a distinct green color.
This common name refers to only one species. Click its scientific name to learn more.
Mayfly Species Attenella attenuata
These are sometimes called Booger Sulphurs.
This intriguing species has received a lot of attention in past angling books. Recent authors suspect that much of this credit was a case of mistaken identity, with Attenella attenuata receiving praise for the hatches of Drunella lata and Dannella simplex. Much of the credit was legitimate and accurate, but this species is no longer thought to be on par with its most popular cousins in Ephemerella and Drunella.
I have several specimens listed under this species, but I'm not positive the identification is correct.
I have several specimens listed under this species, but I'm not positive the identification is correct.
This specimen came from the same hatch as a male.
See 2 more specimens...