BirdTrout Open the map

Brown Drake Spinner

A dry fly, tied #10–12, a summer pattern. It is tied against 1 named insect in this book — June.

The spent stage of a large mayfly, tied on a 2X long dry-fly hook in sizes 10 and 12 with tan 6/0 thread. Three moose hairs are splayed for the tail, the body is rusty-tan dubbing, and the wings are white poly yarn tied spent and lying flat over the body. There is no hackle at all, or at most a turn clipped flat underneath, so the fly lies in the surface the way a dead spinner does. It is tied against the Brown Drake, Ephemera simulans, of June, in water from 55 to 65 degrees, and it follows the dun after dark. The presentation is a downstream slack-line drift, dead in the film, aimed at a rise heard rather than seen, since the white wings are the only part of it visible and often not even that. It is carried in summer and fished for trout.

What it looks like

A drawing, not a photograph, and not traced from one. Its proportions were read off 5 independent reference photographs of the pattern and written down as 5 measured characteristics — wing angle, tail length against the shank, how far a hackle fibre reaches — every one of which had to hold across more than one of them before it could be drawn. What survives across many photographs of a fly is the fly.

The same insect, dead on the water at the end of the night. Wings flat, body rusty, no hackle to lift it — this is the last twenty minutes of a brown drake evening. Drawn at #12 — 14.0 mm of shank and 5.0 mm of gape on a Tiemco 100.
#10#1210 mm
The bare hook at every size this pattern is tied in, all to the same scale. There is no industry standard behind a hook number, so these are Tiemco 100 measurements and another maker's 10 will differ a little.

What it imitates

Each of these is the same hatch record the app's own panel reads, so a pattern recommended on a river card in the app is recommended for one of the insects below.

Tying recipe

In tying order. This dressing is the standard one — these patterns have been in the publicrecord for decades — and materials substitute freely: the proportions and the silhouette are the pattern, not the brand of dubbing.

Hook2X long dry-fly hook, sizes 10–12
ThreadTan 6/0
TailThree moose hairs, splayed
BodyRusty-tan dubbing
WingsWhite poly yarn, spent, flat over the body
HackleNone, or clipped underneath

When to fish it

After the dun, in the dark. Fish it on a downstream slack-line drift over a rise you heard rather than saw.

A summer pattern. The insects it matches are active june, in water from 55°F to 65°F.

Target species

Rivers it fishes well

Rivers with a page here that sit in the regions where the insects this pattern imitates are recorded. It is a claim about coverage, not a report of a fish caught.

Related patterns

Same type of fly, or tied for the same insects.

Open the trout map →Every trout stream near you, coloured by today's water temperature.