North Washington guide service

Emergence – March until May
Prime water temps – 44-48 degrees
General hatch time – 12noon to 3pm
Latin name – Rithrogena Germanica

NYMPH CHARACTERISTCS Size #10-12
Length 9 – 10 mm.; 3 tails..
Color Body dark reddish brown;

1. Pattern Suggestions

2. Hares Ear Soft Hackle

3. Pheasant Tail Soft Hackle

4. Pheasant Tail

5. Hares Ear Soft Hackle

6. Iron Dun Wet fly

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ADULT  Characteristics #10-12
Color Body tannish olive -Wings mottled medium gray
length 9-11 mm.; 2 tails;

Pattern Suggestions

1. Std. Thorax March Brown

2. Parachute Adams

3. Comparadun/Sparkle Dun

4. IIrresistable Wulff

5. Parachute Hares Ear

6. March Brown Parachute

The March Brown nymph is a clinger. The nymph is found in the faster flowing riffles and runs of many wetern streams. Prior to the actual hatch, the March Brown nymph is not readily available to the trout. However, the trout will especially key in on the insect as it is in it’s emergence . The March Brown hatch can be quite intense and sometimes short lived. Many times, the hatch will last for 45 minutes and other times up to 2 hours; Rarely does it last much longer. At times, the surface can be covered by adults. The hatch tends to come in waves of activity. The trout’s feeding activity will replicate the waves of activity. The hatch can also occur like clockwork. For example, if you experience a hatch of March Browns one day in a riffle at 1pm, The next day given the same conditions the hatch will most likely take place at the same time!

Methods of Presentation

1. The Dry fly presented mostly drag free
2. The emerger presented mostly drag free with a slight “hatching twitch”
3. A traditional wet fly swing down and across
4. A nymph drag free

My favorite pattern