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Hiwassee River, Tennessee Hatch Chart

Insect Size Begin End
Early Brown Stone 12 February 15 March 31
Hendrickson 12-14 April 1 April 30
BWO   18-24   April 1 June 30
BWO 18-24   September 15   November 30
Grannom 16 April 1 April 30
Brown Caddis 12 March 15 November 15
Sulphur 16 May 1 June 15
Golden Stonefly 10-12 May 1 June 30
Isonychia 12 May 1 September 30
Light Cahill 14-16 May 15 June 30
Yellow Sally 14 June 1 June 30
Trico 22 July 1 October 15
White Mayfly 14 September 1   September 30  
October Caddis 8-10 October 1 October 31
Stonefly 10-12 November 15 February 15
Midges 22 November 15 February 15

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