| Insect | Size | Begin | End | |
 |
Midges | 12-20 | January 1st | December 31st |
 |
Golden Stonefly Nymph | 6-8 | January 1st | December 31st |
 |
BWO | 16-22 | January 1st | June 15th |
 |
October Caddis | 6-10 | March 1st | April 15th |
 |
Caddis | 14-18 | May 1st | September 15th |
 |
Green Drake | 8-12 | May 15th | July 15th |
 |
PMD |
18 | May 15th | September 15th |
 |
Yellow Sally | 12-14 | June 15th | July 15th |
 |
Golden Stonefly Adult | 6-8 | June 15th | September 15th |
 |
Flav |
12-16 | September 15th | October 15th |
|
BWO | 16-22 | September 15th | October 31st |
 |
Mahogany Dun | 12-16 | October 1st | October 31st |
|
October Caddis | 6-10 | October 1st | October 31st |
Read more about the Metolius River on our Big Y Blog
Visit our Oregon Flies by Location page here:
