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Fly Fishing Nymph

Connecticut: Farmington River Hatch Chart

FlySizeJanFebMarAprMayJunJulAugSepOctNovDec
Blue Quill16 - 18            
Blue Winged Olive18            
Brown Stonefly14            
Quill Gordon12 - 14             
Hendrickson10 - 12             
Red Quill10 - 12             
March Brown10 - 12             
Sulphur14 - 16            
Green Drake10 (2XL)             
Light Cahill12 - 16            
Golden Drake10 - 12             
Slate Drake12 - 14           
Green Caddis20 - 22             
Terrestrials (various)16 - 20           
Trico22 - 24            
Blue Dun22 - 26           
Blue Winged Olive20 - 24           
White Fly12 - 14             
Click Fly Name to see patterns that imitate it.