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Pere Marquette River, Michigan Hatch Chart

Insect Size Begin End
Hendrickson  12-14  May 1 May 31
BWO   18-22   May 1   August 31  
March Brown 12-14   March 15   April 30
Pale Evening Dun 14-16 May 15 July 15
Gray Drake 10-12 May 15 June 30
Hexagenia 4-6 May 1 June 30
Trico 22-24 June 1 July 31
Mahogany Dun 10-12 May 1 July 31
Brown Drake 8-10 May 10 June 30
Light Cahill 12-14 May 1 July 31
Little Black Caddis    16-18 May 1 July 31
Tan Caddis 14-16 May 1 July 31
Little Black Stone 14-16 May 1 May 31
Giant Stone 4-8 May 1 July 31
Yellow Sally 14-16 May 1 August 31
Terrestrials 6-14 May 1 August 31
Damsel 10-12 May 1 July 31

Visit our Michigan Flies by Location page here:

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