Hatch Charts

Michigan has tens of thousands of miles of rivers that both cold and warm water species of fish call home. Many of them feed on the insects that also live in the river, many of which emerge from a subsurface nymph or larva, to a flying insect that fish feed on. It’s this “dry fly fishing” that lures many anglers to the stream to test their skills at fly fishing.

We are truly blessed to have some epic insect hatches, especially in west Michigan that bring fish to the surface in search of floating insects that fish eat. From “blizzard” hatches of caddis and gray drakes, to the elegant emergence of a sulphur and the fly “copters” we call Hex’s, Michigan is rich with insect filled rivers and fish that reside in them.

Below is a chart that outlines what hatches and when. We certainly welcome any calls or emails with specific questions.

*Best Hatches

Common Name  Latin Name Group Emergence Dates Emergence Times
Tiny Black Stonefly #16-20 Allocapnia sp., Nemoura aldipennis Stonefly 1/1-4/30 noon-4pm
Early Black Stonefly #10-14 Taeniopteryx nivalis Stonefly 2/21-4/30 noon-4pm
Early Brown Stonefly #12, 14 Brachyptera fasciata Stonefly 3/15-5/10 1pm-7pm
Blue-winged Olive #16 Baetis tricaudatus Mayfly 4/15-11/1 noon-3pm
Dark Hendrickson #12, 14 (Hendrickson, Red Quill) Ephemerella subvaria  Mayfly 4/20-5/20Peak: 5/1-7 10am-4pm
Little Black Caddis #16-18 Chimarra aterrima Caddisfly 4/20-5/31Peak: 5/1-14 noon-10pm
Grannom Caddis #14-16 Brachycentrus americanus Caddisfly 4/20-7/31 2pm-dark
Medium Bown Stonefly Perlodia isoperla Stonefly 5/10-7/31 afternoons
Little Yellow Stonefly #14-18 Allloperla sp. Stonefly 5/15-8/15Peak: 5/28-6/21 and 7/1-7/14 afternoons
Giant Stonefly #2-8 (Salmonfly) Pteronarcys dorsata Stonefly 5/15-6/30 any time
Green Oak Worm #8-12 Lepidoptera sp. Terrestrial 5/15-7/10 day
Green Caddis #10-18 (Green Rock Worm) Rhycophila fenestra Caddisfly 5/1-6/30Peak: 5/21-6/14 2pm-dark
March Brown #10, 12 Stenonema vicarium Mayfly 5/17-6/20 noon-4pm
Cinnamon Caddis #14-20 Hydropsyche sp. Caddisfly 5/20-9/30Peak: 5/31-6/31 4pm-dark
Quill Gordon #12, 14 Epeorus pleuralis Mayfly 5/24-7/12 1pm-4pm
Light Hendrickson #14 Ephemerella rotunda Mayfly 5/3-6/20Peak: 5/7-14 noon-5pm
Slate-winged Mahogany #16, 18 (Little Red Quill) Paraleptophlebia adoptiva Mayfly 5/3-7/8 11am-2pm
Gray Drake #8, 10 (Spinner Fall) Siphlonurus alternatus  Mayfly 5/15-7/26Peak 5/21-6/15 dark
Giant Michigan Mayfly #4, 6 (Hex, Michigan ) Hexagenia limbata Mayfly 6/10-7/10 10pm-4am
Blue-winged Olive #14, 16 Baetis spp. Mayfly 6/15-7/12Peak: 5/7-5/31 8pm-10pm
Leadwing Coachman #10 Isonychia bicolor Mayfly 6/15-8/15 4pm-10pm
Ants #12-24 (Black and Cinnamon) Hymenoptera: Formicidae Terrestrial 6/15-9/30 day, evening
Pale Evening Dun #16, 18 Ephemerella dorothea Mayfly 6/1-7/15 8pm-midnight
Great Orange Sedge Phryganglia ptilostomis Caddisfly 6/1-7/31 evenings
Brown Drake #8, 12 Ephemera simulans Mayfly 6/1-7/4Peak: 6/7-14 8pm-midnight
Beetles Coleoptera Terrestrial 6/1-9/30 day, evening
Tiny Blue-winged Olive #22* Baetis punctiventris Mayfly 6/23-9/8 10am-9pm
Light Cahill #12, 14 Stenonema sp. Mayfly 6/5-8/14 2pm-10pm
Crickets Orthoptera sp. Terrestrial 7/1-10/15 any time
Grasshoppers #6-12 Orthoptera sp. Terrestrial 7/1-9/30Peak: 7/15-8/30 day
Tiny White-winged Black #22 (Trico)* Tricorythodes spp. Mayfly 7/20-9/1Peak: 7/21-8/7 6am-10am