A nymph, tied #6–12, carried year round. It is tied against 1 named insect in this book, and stands in when nothing is hatching — June–July.
A heavy bottom nymph tied to the golden stonefly, which spends three years underwater before emerging, so a version of it is in the drift in every month of the year. It is tied on a 3X long nymph hook in sizes 6–12 with tan 6/0 thread: two amber goose biots for the tail, a ribbed body of amber and brown mottled dubbing, a two-segment mottled turkey wingcase, brown-mottled hen legs, and flattened lead wire to get the profile down and keep it there. The insect it matches, Acroneuria, is on the water in June and July in temperatures of 55 to 68 degrees. The fly is fished in riffles and broken water in early summer, weighted enough to tick along the bottom through the drift. It is also carried for stoneflies generally and as a searching pattern when nothing is hatching, since a nymph with a three-year life cycle is never out of season. Trout are the target.
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.
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.
It is also tagged for stoneflies generally, no hatch at all — a searching pattern.
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 | 3X long nymph hook, sizes 6–12 |
|---|---|
| Thread | Tan 6/0 |
| Tail | Two amber goose biots |
| Body | Amber and brown mottled dubbing, ribbed |
| Wingcase | Mottled turkey, two segments |
| Legs | Brown-mottled hen |
| Weight | Lead wire, flattened |
Riffles and broken water in early summer. Fish it heavy and let it tick the bottom.
Carried all year. The insects it matches are active june–july, in water from 55°F to 68°F.
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.
Same type of fly, or tied for the same insects.