The hatch chart · Stonefly
Needle fly
Leuctra fusca
- Natural’s size
- Hook 16–18
- Time of day
- Mild autumn afternoons
- At its peak
- September, October
- Fly to try
- Partridge & Orange, size 16
The year
- JJanuary: not expected
- FFebruary: not expected
- MMarch: not expected
- AApril: not expected
- MMay: not expected
- JJune: not expected
- JJuly: not expected
- AAugust: some about
- SSeptember: main hatch
- OOctober: main hatch
- NNovember: not expected
- DDecember: not expected
In the hand
The thinnest of the stoneflies: a dark brown fly 6–9 mm long whose wings wrap tightly round the body, so that at rest it looks like a short dark needle. Runs quickly over stones.
On the river
Abundant on stony rivers in September and October. Grayling in particular take the egg-laying females; a tiny dark spider fished upstream is the traditional answer.