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Cinnamon Flying Ant

A terrestrial, tied #16–20, a summer pattern. It is tied against 1 named insect in this book — August–September.

A terrestrial tied on a standard dry-fly hook in sizes 16–20 with rust 8/0 thread, the body cinnamon-brown dubbing or foam in two segments, wings of white or light dun poly laid flat and swept back, and a sparse brown hackle. The two-segment body and the flat wing are what the fly is: an alate ant on the water, the winged form of Formicidae, which the pattern is tied against for August–September at water temperatures of 58–78°F. The fall comes on one or two humid afternoons in late August, and when it does every fish in the river eats them and nothing else will do. A few carried through summer covers it. The fish are trout, and the fly is fished dead drift as a dry, small and low in the film the way the naturals lie once their wings have wetted. Outside those afternoons it has no other job, which is why it is carried in small numbers rather than large.

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 late-summer fall that empties a river's fish onto the surface for an hour. Two cinnamon humps, a waist, and a pair of flat white wings lying back over it. Drawn at #18 — 6.0 mm of shank and 3.0 mm of gape on a Tiemco 100.
#16#18#205 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 16 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.

HookStandard dry-fly hook, sizes 16–20
ThreadRust 8/0
BodyCinnamon-brown dubbing or foam, two segments
WingsWhite or light dun poly, flat and swept back
HackleBrown, sparse

When to fish it

One or two humid afternoons in late August, and every fish in the river eats them. Carry it and be ready.

A summer pattern. The insects it matches are active august–september, in water from 58°F to 78°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.