The hatch chart · Caddis
Sedges
Trichoptera
- Natural’s size
- Hook 10–16
- Time of day
- Dusk and into dark
- At its peak
- June, July, August, September
- Fly to try
- Elk Hair Caddis or Klinkhåmer, size 12–14
The year
- JJanuary: not expected
- FFebruary: not expected
- MMarch: not expected
- AApril: not expected
- MMay: some about
- JJune: main hatch
- JJuly: main hatch
- AAugust: main hatch
- SSeptember: main hatch
- OOctober: some about
- NNovember: not expected
- DDecember: not expected
In the hand
Moth-like flies with four hairy wings folded in a tent over the body and long antennae pointing forward. No tails. Colours run from pale cinnamon to dark brown, sizes from 8 to 25 mm. They flutter rather than drift.
On the river
Larvae live on the riverbed, many in cases of sand or twigs. Adults hatch mostly in the evening; splashy rises near the banks at dusk are trout chasing pupae and scuttling adults.