68 Rock Creek Road - Clinton, MT 59825     Phone: (406) 825-2997  Toll Free: (800) 580-9703    Email: John Perry Outdoors
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Western Montana Hatch Chart

 

January

 February March April May June July August September October November December

Caddis

  
Grannom  

Sizes 12-18, Brown to Light Green

  
Spotted Sedge  

Sizes 12-16, Brown to Tan

  
Brown Sedge  

Sizes 14-18, Brown

  
October Caddis  

Sizes 6 & 8, Burnt Orange

  

January

 February March April May June July August September October November December

Mayfly

  
Baetis  

Sizes 14-22, Blue Winged Olives

  
March Brown  

Sizes 12-14, Brown

  
Ameletus

Sizes 14-16, Red/Gray to Gray

  
Pale Morning Dun  

Dull Yellow

  
Red Quill  

Sizes 10 -12, Rust to Red

  
Green Drake  

Sizes 8-12, Green

  
Gray Drake  

Sizes 10 -14, Gray

  
Mahogany Dun  

Sizes 12-16, Burgundy

  
Trico   Size 18, very tiny  
January February March April May June July August September October November December

Stonefly

  
Capnia

Sizes 16 & 18, Black

  
Nemoura  

Sizes 12 & 14, Brown

  
Skwala  

Sizes 10 & 12, Greens to Browns

  
Large Golden Stone  

Sizes 6 & 8

  
Small Yellows  

Sizes 14-18

  
Salmon Fly  

Sizes 4 & 6

  
January February March April May June July August September October November November

Midges
Small Black Midge

Just about the entire year
Small Green Midge

Just about the entire year