Hatches Made Easy:

American March Brown (Stenonema vicarium) Fly Pattern Colors

02/27/08

Clinger Nymph
Hook: 10-12
Thread: Brown
Weight: Lead or Lead Substitute                        
Tails: Brown                
Abdomen: Amber                
Thorax: Amber                
Wing Case: Dark Brown
Legs: Amber

Emerger
Hook: 10-12
Thread: Brown
Tails: Brown
Unfolding Wings: Light Brown
Abdomen: Amber
Thorax: Amber
Legs: Amber

Trailing Shuck Emerger
Hook: 10-12
Thread: Brown
Tail (T.S.) Lt. Brown  
Body  Reddish Brown                       
Thorax: Reddish Brown
Wings: Brown
Ribbing: Cream
Legs: Lt. Brown
Use cream ribbing between the segmentation of the abdomen.

Dun
Hook: 10-12
Thread: Brown
Tail: Brown
Body: Reddish Brown                       
Thorax: Reddish Brown
Wings: Lt. Brown
Legs (Hackle): Light Amber
Ribbing: Cream
Use cream ribbing between the segmentation of the abdomen.


Spinner
Hook: 10-12
Thread: Dark Brown
Tail: Dark Brown
Abdomen: Dark Reddish Brown
Thorax: Dark Reddish Brown
Wings: White (Clear)
Wing Case: Dark Brown
Legs (Hackle): Dark Brown

Use cream ribbing between the
segmentation of the abdomen.

Note: We are showing hook sizes at 10 and 12 but you may find some that are
closer to a 14 than a 12.

These are the best
commercially available flies we have found. We don't
think any of the March Brown duns or spinners are very good imitations for the
smooth water these mayflies hatch in. We didn't find a suitable emerger
imitation. The nymph imitation is a fairly good one. If possible, you should tie
your own.


Coming Up Next:
Green Sedges (Rhyacophila sp) - Larvae

Copyright 2008 James Marsh
Spinner with a stuck shuck
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Close up of spinner:Thumbnail: Click
on image to enlarge
Check out the long legs.
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