Common Name (Hook Size) |
Scientific Name |
Insect Group |
Emergence Dates* |
Emergence Times* |
Tiny Black Stonefly (16-20) |
Allocapnia granulata, Nemouridae sp. |
Stonefly |
1/14 - 5/14 |
12:00 - 16:00 |
Early Black Stonefly (10-14) |
Taeniopteryx nivalis |
Stonefly |
3/7 - 5/14 |
12:00 - 16:00 |
Early Brown Stonefly (12-14) |
Brachyptera fasciata |
Stonefly |
3/29 - 5/24 |
13:00 - 19:00 |
Slate Wing Mahogany, Little Red Quill (16-18) |
Paraleptophlebia adoptiva |
Mayfly |
4/29 - 7/22
Peak: 5/14 - 5/28
|
10:00 - 16:00 |
Blue-Winged Olive (16-20) |
Baetis tricaudatus (formerly, Baetis vagans) |
Mayfly |
4/29 - 9/7
Peak: 5/15 - 5/21
& 6/21 - 7/5
|
12:00 - 15:00 |
Dark Hendrickson, Red Quill (12-14) |
Ephemerella subvaria |
Mayfly |
5/4 - 6/3
Peak: 5/14 - 5/21
|
10:00 -16:00 |
Little Black Caddis (16-18) |
Chimarra aterrima |
Caddis |
5/4 - 8/14
Peak: 5/14 - 5/21
|
12:00 -22:00 |
Grannom Caddis (14-16) |
Brachycentrus americanus |
Caddis |
5/4 -8/14 |
14:00 - Dark |
Borcher's Drake (12-14) |
Leptophlebia cupida |
Mayfly |
5/4 - 8/29 |
10:00 - 16:00 |
Green Caddis, Green Rock Worm (10-18) |
Rhyacophilidae fenestra |
Caddis |
5/14 - 7/14 |
14:00 - Dark |
Medium Brown Stonefly (8-14) |
Perlodidae isogenus |
Stonefly |
5/14 - 8/14 |
Afternoons |
Light Hendrickson (14-16) |
Ephemerella rotunda |
Mayfly |
5/17 - 7/4 |
12:00 - 17:00 |
Giant Stonefly, Salmonfly (2-8) |
Pteronarcys dorsata |
Stonefly |
5/29 - 7/14 |
Anytime |
Great Speckled Olive Mayfly (10-14) |
Siphloplecton baslae |
Mayfly |
5/29 - 7/29
Peak: 5/28 - 5/14
|
12:00 - 17:00 |
True Hendrickson (14-16)
|
Ephemerella invaria |
Mayfly |
5/29 - 8/3
Peak: 6/4 - 6/21
|
12:00 - 17:00 |
Sulphur Dun Mayfly (16-18) |
Ephemerella dorothea |
Mayfly |
5/29 - 7/22
Peak: 6/21 - 7/14
|
12:00 - 17:00 |
Blue-Winged Olive (14-16) |
Baetis sp. |
Mayfly |
5/29 - 7/26 |
20:00 - 22:00 |
Tiny Blue-Winged Olive (20-22) |
Baetis cingulatis |
Mayfly |
5/29 - 9/13 |
10:00 - 21:00 |
Green Oak Worm (8-12) |
Lepidoptera sp. |
Terrestrial |
5/29 - 7/24
Peak: 6/21 - 7/5
|
Daytime |
Little Yellow or Green Stonefly (14-18) |
Alloperla sp. |
Stonefly |
5/29 - 11/13 |
Afternoons |
White Miller Caddis (14-16) |
Nectopsyche |
Caddis |
5/29 - 11/13 |
Afternoons |
March Brown (10-12) |
Stenonema vicarium |
Mayfly |
5/31 - 8/3 |
12:00 - 16:00 |
Early Gray Drake (12-14) |
Siphlonurus rapidus |
Mayfly |
6/3 - 6/29
Peak 6/14 - 6/21
|
Dark |
Cinnamon Caddis (14-20) |
Hydropsyche sp. |
Caddis |
6/3 - 10/14 |
16:00 - Dark |
Sand Drake Mayfly (12-14) |
Stenonema fuscum |
Mayfly |
6/3 - 8/3
Peak: 6/14 - 6/28
|
20:00 - 24:00 |
Quill Gordon (12-14) |
Epeorus pleuralis |
Mayfly |
6/7 - 7/26 |
13:00 - 16:00 |
Pale Evening Dun (16-18) |
Ephemerella dorothea |
Mayfly |
6/15 - 7/29 |
20:00 - 24:00 |
Brown Drake Mayfly (8-12) |
Ephemera simulans |
Mayfly |
6/15 - 7/18
Peak: 6/14 - 6/28
|
20:00 - 24:00 |
Great Orange Sedge (8-10) |
Phryganlidae ptilostomis |
Caddis |
6/15 - 8/14 |
Evenings |
Beetles |
Coleoptera |
Terrestrial |
6/15 - 10/14 |
Daytime & Evenings |
Midges (20-28) |
Diptera |
Midges |
6/15 - 11/13 |
Anytime |
Light Cahill (12-14) |
Stenonema sp. |
Mayfly |
6/20 - 8/28 |
14:00 - 22:00 |
Giant Michigan Mayfly (4-8) |
Hexagenia limbata |
Mayfly |
6/24 - 7/24
Peak: 7/5 - 7/21
|
22:00 - 04:00 |
Late Gray Drake (10-12) |
Sephlonurus alternatus |
Mayfly |
6/24 - 8/9
Peak: 7/15 - 7/28
|
Dark |
Mahogany Dun (10-12) |
Isonychia sadleri |
Mayfly |
6/29 - 8/13
Peak: 6/7 - 7/28
|
16:00 - 22:00 |
Golden Drake (10-12) |
Ephemera varia |
Mayfly |
6/29 - 8/21 |
- |
Leadwing Coachman (10-12) |
Isonychia bicolor |
Mayfly |
6/29 - 9/29 |
16:00 - 22:00 |
Ants - Black & Cinnamon (12-24) |
Hymenoptera: Formicidae |
Terrestrial |
6/29 - 10/14 |
Daytime & Evenings |
Big Golden Stonefly (6-8) |
Paragentina media |
Stonefly |
7/5 - 8/21 |
- |
Slate Winged Olive (14-18) |
Ephemerella lata |
Mayfly |
7/5 - 8/28 |
- |
Dark Slate Wing Olive (18-20) |
Ephemerella simplex |
Mayfly |
7/5 - 10/14 |
- |
Tiny Blue Winged Olive (22-24) |
Pseudocloen anoka |
Mayfly |
7/5 - 10/14 |
- |
Crickets
|
Orthoptera sp. |
Terrestrial |
7/15 - 10/29 |
Anytime |
Grasshoppers (6-12) |
Orthoptera sp. |
Terrestrial |
7/29 - 10/14 |
Daytime |
Tiny White-Winged Black, Trico (22-26) |
Tricorythodes stygiatus |
Mayfly |
8/3 - 11/3 |
06:00 - 10:00 |
Small Slate Mahogany (16-18) |
Paraleptophlebia debilis |
Mayfly |
8/3 - 11/13 |
- |
Black Dancer Caddisfly (18-20) |
Mystocides sepulchralis |
Caddis |
8/15 - 10/14 |
- |
Little Medium Olive (22-24) |
Baetis brunneicolor (formerly, Baetis pygmalus) |
Mayfly |
8/21 - 10/14 |
- |
White Fly (12-14) |
Ephoron album, Ephoron leukon |
Mayfly |
8/28 - 10/14 |
- |
Blue-Winged Olive (14-16) |
Baetis tricaudatus |
Mayfly |
8/29 - 11/15 |
11:00 - 16:00 |
Slate Wing Brown Mayfly (14-16) |
Baetis heimalis |
Mayfly |
9/15 - 11/15 |
- |
Source: Michigan Hatch Chart. Trails to Trout. [accessed 2017 Oct 9]. http://www.trailstotrout.com/mihatch.html
*Note: Emergence dates and times are approximate; actual dates and times may vary.
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