| Insect | Size | Begin | End | |
 |
Sculpin | 2-12 | January 1 | December 31 |
 |
Baitfish | 2-8 | January 1 | December 31 |
 |
Midge | 18-22 | February 1 | November 30 |
 |
BWO |
16-22 | May 1 | June 30 |
 |
PMD | 14-18 | June 1 | July 31 |
 |
Callibaetis | 12-18 | June 1 | October 31 |
 |
Green Drake |
8-12 | June 1 | June 30 |
 |
Brown Drake |
8-10 | June 1 | June 30 |
 |
Beetle | 10-16 | June 1 | October 31 |
 |
Ant | 10-16 | June 1 | October 31 |
 |
Spotted Caddis |
10-14 | June 1 | August 31 |
 |
Green Caddis | 8-14 | July 1 | September 30 |
 |
Yellow Sally | 10-16 | July 1 | August 31 |
 |
Hopper |
4-10 | July 1 | September 30 |
 |
Trico | 18-22 | August 1 | September 30 |
 |
Mahogany Dun | 12-16 | September 1 | September 30 |
Visit our Idaho Flies by Location page here:
