| Insect | Size | Begin | End | |
 |
Midge | 18-22 | January 1 | November 30 |
 |
Sculpin | 2-12 | January 1 | November 30 |
 |
Baitfish | 2-8 | January 1 | November 30 |
 |
BWO | 16-22 | June 1 | June 30 |
 |
Giant Salmonfly | 10-14 | July 1 | July 31 |
 |
Spotted Caddis | 10-14 | June 1 | July 15 |
 |
PMD | 14-18 | July 1 | September 30 |
 |
Golden Stone | 6-8 | July 1 | August 31 |
 |
Beetle | 10-20 | August 1 | September 30 |
 |
Ant | 10-16 | August 1 | September 15 |
 |
Hopper | 4-10 | July 1 | September 30 |
 |
Green Caddis | 8-14 | July 1 | September 30 |
 |
Yellow Sally | 10-16 | July 1 | September 30 |
 |
October Caddis | 6-8 | September 1 | November 30 |
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