A dry fly, tied #14–18, a summer pattern.
It is tied against 1 named insect in this
book — July–September.
#14–18Hook size
dry flyType
SummerSeason
1Hatch matched
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.
A white caddis that comes off at dusk in late summer, sometimes in numbers that whiten the air. Pale all through, which makes it one of the few flies you can actually see at last light.
Drawn at #16 — 7.0 mm of shank and
3.5 mm of gape on a Tiemco 100.
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 14 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.
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.
Hook
Standard dry-fly hook, sizes 14–18
Thread
White 8/0
Body
Cream dubbing
Wing
White deer hair or pale elk
Hackle
Cream, palmered
When to fish it
Midsummer evenings on driftless and lower-peninsula water. Start before the swarm is visible; much of the eating happens on the pupa beforehand.
A summer pattern. The insects it matches are active july–september, in water from
60°F to
74°F.
Target species
Trout
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.