hatchchart

Throughout Michigan there are insect hatches throughout most of the year. Fly anglers know that the insect patterns they are using are the most important factor involved with this. The chart below is a guide to Michigan insect hatches along many rivers throughout the state! Although this chart is realitivly true, some factors, such as weather patterns and water may contribute to later emergence times!

Tiny Black Stonefly                       Stonefly             #16 -20            1/1 - 4/-1                 noon - 6pm.
(Allocapnia sp.)

Early Black Stonefly                      Stonefly             #8 - 14             2/16 - 5/1                 noon - 4pm
(Tainiopteryx nivalis)

Green Caddis                                Caddisfly            #18 - 22           1/15 - 6/20              2pm - nightfall
(Rhycophila fenestra)

Early Brown Stonefly                     Stonefly             #10 - 14           3/10 - 5/17              noon - 7pm
(Brachyptera fasciata)

Little Black Caddis                         Caddisfly            #16 - 20           4/16 - 6/1                noon - nightfall
(Chimarra aterrima)

Dark Hendrickson                          Mayfly              #12 - 20           4/20 - 5/25               10am - 6pm
(Ephemerella subvaria)

Blue-Winged Olive                          Mayfly              #16 - 22           4/20 - 10/20             noon - 4pm
(Baetis tricaudatus)

Michigan Mayfly                            Mayfly              #4 - 8               6/1 - 7/20                10am - 4pm
(Hexagenia Limbata)