Au Sable River
HATCH GUIDE: Au Sable River (The Holy Waters) Grayling, Michigan
| Hatch Timing | Scientific Name | Common Name | Hook Size |
| Apl 20-Jun 1 | Paraleptophlebia adoptive | Mahogany Drake | 14-16 |
| Apl 20-Jun 1 | Chimarra atterrima | Little Black Caddis | 16-18 |
| Apl 25-Aug 30 | Baetis vegans | Blue Winged Olive | 16-20 |
| May 1-May 20 | Ephemerella subvaria | Dark Henderickson | 14-16 |
| May 10-May 30 | Ephemerella invaria | Light Hendrickson | 12-14 |
| May 10-Jun 5 | Ephemerella rotunda | Sulphur | 14-16 |
| May 20-Jun 5 | Leptophlebia nebulosa | Borcher's Drake | 12-14 |
| Jun 1-Jun15 | Ephemera simulans | Brown Drake | 10-12 |
| Jun 1-Jun 30 | Stenonema vicarium | March Brown | 10-12 |
| Jun 1-Jun 30 | Ephemerella dorothea | Sulphur | 18-20 |
| Jun 1-Jul 4 | Pteronarcys dorsata | Giant Black Stonefly | 2-4 |
| Jun 1-Aug 30 | Nectopsyche albida | White Miller | 14-16 |
| Jun 12-Jul 8 | Hexagenia limbata | Great Olive-Winged Drake | 4-6 |
| Jun 15-Aug 30 | Isonychia sadleri | Maroon Dun | 10-12 |
| Jun 20-Jul 20 | Stenacron interpunctatum | Light Cahill | 12-14 |
| Jun 25-Aug 20 | Ephemerella lata | Slate-Winged Olive | 16-18 |
| Jul 1-Aug 30 | Pseudocleon anoka | Tiny Olive | 22-24 |
| Aug 1-Sep 30 | Tricorythodes stygiatus | Trico | 22-26 |
| Aug 20-Sep 30 | Ephoron leukon | White Fly (White Drake) | 12-14 |
| Terrestrials | |||
| Jun 1-Jun 30 | Anisota virginiensis | Oak Worm | 10-12 |
| Jun 1-Aug 30 | Family Formicidae | Flying Ant | 14-16 |
| Jul 20-Sep 30 | Family Tettigoniidae | Grasshoppers | 8-12 |
| Aug 1-Sep 30 | Family Gryllidae | Crickets | 8-12 |