| Insect | Size | Begin | End | |
 |
Scud |
12-16 | April 1st | October 31st |
 |
Leeches | 6-10 | April 1st | October 31st |
 |
Midges | 12-16 | April 1st | October 31st |
 |
Streamers | 6-10 | April 1st | October 31st |
 |
Caddis |
10-16 | May 1st | October 31st |
 |
Callibaetis | 14-18 | May 1st | October 31st |
 |
Dragonflies | 6-8 | May 1st | September 30th |
 |
Damselfly | 10-12 | June 1st | August 31st |
