Hydropsyche Larva

I believe fish react to tiny details which set an edible item apart from a piece of debris floating in the water column.

A big part of this is the correct presentation of the fly; the appropriate size, shape and colour and tiny details like the legs.


The silhouette of insect legs is very characteristic. Even from a long distance these tiny legs can be identified. This, in my mind is a prime trigger for fish.

The fly shown is an upside-down tied variation of the famous pattern by Oliver Edwards. It fish’s very well and is a lot of fun to tie. You need a pheasant tail feather; take a few fibres off the the main stem by ripping them at a 90 degrees angle from the main stem. The fibre roots make nice little feet. These are also known as Veli Autti legs.

The problem is how to angle the fibres sort of 90 degrees from the body of the fly. This is solved by «pulling» the fibre into a softer material. The fibre is held by the tying thread in the softer material. The remaining fibre is clipped off.

So this «soft material» is the basis for the fly. You can use all sorts of materials for that task. One very common solution is latex strips in 3mm width offered by various manufacturers. Make sure it is not too thin. I am very happy with a product called “Nymphskin” made by Virtual Nymph Products in England.

USD Hydropsyche Larva
USD = upside-down – why upside-down?

Generally, flies are fished with hook point on the underside of the fly. Upside-down is when the fly is tied so that it fishes with the hook point upwards. The Hydropsyche Larva is easier to tie this way. You can of course use the same type of hook in regular fashion and have the legs on the same side as the hook point, under the hook eye. For fishing, it makes little or no difference.

Anatomy & Materials

Grub Hook (Partridge CZ or CZF), lead foil or wire, a filoplume (small feather found under the main feather on a partridge), ostrich feather, pheasant tail, latex strip 3mm, marker pens, UV cured resin. two bobbin holders, Dyneema 55 thread & UNI 8/0 thread black.

Note: If you do not have UV curing resin you can use normal head cement, but be aware that this takes longer to dry.

Fly Tying at Skålestrømmen

Fly tying classes are part of the inclusive packages we offer at Skålestrømmen. You can learn to make these all these flies yourself. Tying materials and tools will be supplied if cannot bring your own.

The fly shown works very well in Skålestrømmen (and around the world). There are of course many other, mostly more complicated types of flies that also work, but we like it simple and efficient.

This fly and video are part of “Fly Tying – Modern Classics for Trout and Grayling – by Thomas Züllich” Fly Tying by Thomas Züllich is a digital book available on the apple bookstore and also via the Skålestrømmen online store. You can order and download a pdf version, which you can use in conjunction with the instructional videos on YouTube. https://www.skalestrommen.no/product/fly-tying-by-thomas-zullich/

The book includes 90 minutes of video, over 100 pages of text and a many interactive graphics. The beauty is that you can read and learn about fly tying techniques at your own pace and then use the videos on your computer.

The intention is to make the fly angler understand and fabricate effective trout flies and also being able to improve and simplify the flies he’s been tying so far. The approach is to use old techniques and take them further to modern flies. While the reader can learn semi realistic nymphs and extended body flies, as well as patterns just based on one or two materials.

Staying true to his German craftsman roots, the author approaches fly tying in very efficient way. Thomas Züllich is a well respected fly tier known for his engaging and fresh approach.

The book features crisp interactive graphic content, videos and over 100 pages of informative and entertaining text. The book’s glossary explains over 100 fly fishing specific terms. To even learn more and discuss the fly patterns in the book the author maintains a facebook group. – https://www.facebook.com/groups/tzflyfishing

ALSO AVAILABLE AS IBOOK The book is available for download with iBooks on your Mac or iOS device. Multi-touch books can be read with iBooks on your Mac or iOS device. Books with interactive features may work best on an iOS device. iBooks on your Mac requires OS X 10.9 or later. https://itunes.apple.com/us/book/id1333532292

THIS MATERIAL IS PROTECTED BY COPYRIGHT. Excerpt From Fly Tying by Thomas Züllich available on Apple iBooks
THIS MATERIAL IS PROTECTED BY COPYRIGHT. Excerpt From Fly Tying by Thomas Züllich available on Apple iBooks