STREAMCRAFT 



tion. The sexes come together and drop to the 

 surface of the water where the eggs are de- 

 posited. But even the up- winged flies may 

 assume the spread-winged attitude to preserve 

 their equilibrium in the wind. 



The Olive Dun comes in February, when it 

 is known as the Blue Dun. It has a lighter 

 body a few weeks later, when the weather is 

 warmer, and is called the Cocked- Winged Dun. 

 By the first of April it "is of a general olive color 

 with a yellow-ribbed body. According to other 

 changes it is variously known as the Yellow Dun 

 of April (light and dark), Pale Blue Dun, Yellow 

 Dun of May, Hare's Ear Dun, Pale Evening 

 White, Common Yellow Dun, Golden Dun, 

 July Dun, Dull Blue Dun, Pale Evening 

 Dun. 



The Iron Blue Dun is a species distinct from 

 the Olive Dun, and only about half the size. 

 Jennie Spinner is the source of the Iron Blue 

 Dun range. 



Such well-known standard flies as the Red- 

 fly, Cinnamon, Willow, Grannom, Alder, Stone, 

 Bluebottle, Oak, and Sand-fly are copied more 

 accurately in a flat-winged, and some in a 

 spread -winged style, than in the erect- winged 

 form which is correct only for the ephemerals. 

 Therefore to use a cocked-winged copy (in the 

 dry fly) of a living flat-winged insect is at least 

 incongruous. [And yet sometimes successful.] 

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