| Insect | Size | Begin | End | |
 |
Midge | 16-22 | January 1st | December 31st |
 |
BWO |
14-20 | January 1st | June 15th |
 |
Little Brown Stonefly | 14-18 | January 15th | March 31st |
 |
March Brown | 10-14 | February 15th | May 15th |
 |
Saddle-Cased Caddis | 14-18 | April 1st | October 31st |
 |
McKenzie Caddis | 12-16 | April 1st | June 15th |
 |
Green Caddis | 12-14 | May 1st | September 15th |
 |
Spotted Caddis | 12-14 | May 15th | August 30th |
 |
PMD | 16-20 | June 1st | July 15th |
 |
Yellow Sally | 12-14 | June 15th | July 15th |
 |
October Caddis | 6-10 | September 15th | October 31st |
|
BWO |
16-20 | September 15th | October 31st |
Visit our Oregon Flies by Location page here:
