Hatch Chart

Hatch Chart

Hatch Chart

Click on the Mayfly to see full size shot!

^{Schedule of Major
Hatches on the Au Sable}

April

May

June

July

August

September

October

Early Black Stonefly #12-#14

X

X

X

x

x

x

Blue Winged Olives #18-#20

X

X

X

X

X

X

Mahogany Dun #16-#18

X

X

X

x

Early Black Quill #12

X

X

x

Dark Hendrickson #12-#14

x

X

X

X

x

Little Black Caddis #16-#18

X

X

X

x

Hendrickson #12-#14

X

X

X

Light Hendrickson #14-#16

X

X

x

Great Olive Dun #10-#12

x

x

X

X

x

x

x

Light Olive Stonefly #14-#16

x

X

X

x

x

Sulphur Dun #16-#18

X

X

X

X

x

March Brown #12-#14

X

X

X

x

x

Light Cahill #12-#14

x

X

X

X

X

x

Brown Drake #10-#12

X

X

X

X

Gray Drake #12-#14

x

X

X

X

x

x

Little Yellow Stonefly #14-#16

X

X

X

X

X

x

x

x

x

x

x

x

Olive Caddis #16-#18

x

x

X

X

X

X

X

X

X

X

x

x

x

x

Yellow Bellied Black Stone #10-#12

x

x

X

X

X

x

Cinnamon Sedge #16-#18

x

x

X

X

X

X

X

X

X

X

X

X

X

X

x

x

Giant Golden Stone #4-#6

x

X

X

X

x

Aluminus Flotilla

x

x

X

X

X

X

X

X

X

X

x

Giant Michigan Mayfly #6-#8

X

X

X

x

Green Sedge #16-#18

x

X

X

X

X

X

X

x

Mahogany Drake #10-#12

X

X

X

X

x

x

x

x

x

x

Tiny Blue Winged Olive #22-#24

x

X

X

X

X

X

X

x

Yellow Drake #12-#14

x

X

X

x

Slate Winged Olive #16-#18

X

X

X

X

x

White Winged Black #22-#24

x

x

X

X

X

X

X

x

x

x

Small Slate Mahogany #16-#18

x

X

X

X

X

X

x

Giant Cream Sedge #10-#12

x

X

X

X

X

x

Gray Winged Yellow Drake #16-#18

x

X

X

X

X

X

x

x

White Miller #14-#16

x

X

X

x

White Fly #12-#14

x

X

X

X

x

x

Giant Brown Autumn Sedge #10-#12

x

X

X

X

x

Flying Black Ants #14-#18

x

X

X

X

X

x

Fall Blue Winged Olives #18-#20

x

x

X

X

X

X

X

X

X

X

x

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Last modified: February 16, 2009