| Insect | Size | Begin | End | |
 |
Midge | 18-22 | January 1 | March 30 |
 |
Caddis | 14-16 | March 1 | June 30 |
 |
BWO | 16-24 | March 1 | November 30 |
 |
Giant Stonefly | 4-6 | May 15 | June 15 |
 |
Brown Drake | 10-14 | May 15 | June 15 |
 |
Western Green Drake | 10-14 | June 1 | July 15 |
 |
Small Golden Stone | 8-12 | June 1 | July 15 |
 |
PMD | 16-20 | June 1 | September 15 |
 |
Golden Stone | 4-6 | June 1 | July 31 |
 |
Mahogany Dun | 16-18 | August 1 | September 30 |
 |
Gray Drake | 10-12 | August 15 | September 15 |
|
Midge | 18-22 | November 1 | December 31 |
Visit our Idaho Flies by Location page here:
