Fly Fishing Trout Fly
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Fly Fishing Nymph

California: Lower Owens River Hatch Chart

FlySizeJanFebMarAprMayJunJulAugSepOctNovDec
Blue Winged Olive18 - 20      
Caddis (various)12 - 20 
Pale Morning Dun16 - 20     
Scud6 - 14 
Streamers (various)6 - 14 
Callibaetis14 - 18    
Brown Stonefly10 - 14       
Golden Stonefly6 - 10      
Little Yellow Stonefly10 - 12       
Olive Stonefly10 - 16       
Trico20 - 22         
Yellow Quill14 - 18           
Click Fly Name to see patterns that imitate it.