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Hebgen Lake, Montana Hatch Chart

Insect Size Begin End
Midge
16-22 May 1st October 31st
Scud 12-16 May 1st October 15th
Leech
2-10 May 1st October 15th
Baitfish 2-10 May 1st October 15th
Crayfish
4-12 May 1st October 15th
12-18 May 1st October 15th
Dragonfly 4-8 May 15th October 31st
Caddis 8-16 May 15th October 15th
Damselfly 8-12 May 15th August 31st
Ant
10-16 June 15th October 15th
Beetle
10-14 June 15th October
Trico
18-24 July 15th September 15th

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