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Fly Fishing Nymph

Michigan: Jordan River Hatch Chart

FlySizeJanFebMarAprMayJunJulAugSepOctNovDec
Streamers (various)6 - 12 
Black Stonefly10 - 14             
Blue Winged Olive18 - 20          
Little Black Caddis16 - 18          
Caddis (various)16 - 18        
Grannom14 - 16           
Hendrickson12 - 14              
March Brown12 - 14             
Sulphur16 - 18            
Brown Drake10 - 12             
Gray Drake12 - 14             
Terrestrials (various)6 - 12         
Hexagenia4 - 8             
Trico22 - 28         
White Fly12 - 14             
Click Fly Name to see patterns that imitate it.