| Insect | Size | Begin | End | |
 |
Stoneflies | 6-12 | May 15 | July 15 |
 |
BWO | 18-22 | March 15 | August 31 |
 |
March Brown | 10-12 | May 15 | June 15 |
 |
Gray Drake | 12-14 | May 15 | June 30 |
 |
Sulphur | 14-16 | May 15 | July 15 |
 |
Trico | 22-24 | July 15 | September 15 |
 |
Mahogany Dun | 12 | June 1 | September 15 |
 |
Brown Drake | 8-10 | May 10 | June 30 |
 |
Caddis | 14-18 | April 15 | September 15 |
 |
Midges | 22-24 | March 1 | March 15 |
 |
Little Black Stone | 14-16 | March 15 | April 30 |
 |
Yellow Sally | 12-16 | May 15 | July 31 |
 |
Terrestrials | 6-14 | July 15 | September 15 |
Visit our Michigan Flies by Location page here:
