Waterhen Bloa Northern Spider Trout Fly

Waterhen Bloa Northern Spider Trout Fly

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Our Part Number:  MH-5005-12
Bar Code:  886741026147
Brand:  The Essential Fly


Waterhen Bloa

The Waterhen Bloa Spider is a great traditional northen spider. When wet, this fly is thought to represent an emerging or drowned Blue Winged Olive

Use The Waterhen Bloa Spider To Catch:

The Waterhen Bloa Spider can be used to catch Rainbow Trout

The Waterhen Bloa Spider can be used to catch Brown Trout

The Waterhen Bloa Spider can be used to catch Grayling

Mike Harding - Heritage Range of Flies

Mike Harding - Heritage Range of Northern Trout Flies

Our Mike Harding Range of Northern Fly patterns are tied to the traditional patterns. The flies are all designed from Mike's excellent book on Northern Spider patterns. Check it out, it is really good!

Tied as part of our Heritage Range these flies are tied with real silk and the best quality materials - just as these flies should be . We love these flies, they look great and most importantly these flies catch fish!

Trout Northen Spider Fly - Waterhen Bloa Spider

Wet flies like Waterhen Bloa Spider are are range of flies that imitate larva, pupa, drowned adults and Lures

The trout finds most of its food beneath the surface of the water, sometimes by grubbing around the weed-beds, at other times by rising in water to take nymphs and pupae on their way to the surface

The wet flies which include Waterhen Bloa fall into various categories: larval and pupal forms of various aquatic insects; drowned adults or even swamped stillborn flies; and drowned terrestrials such as beetles. Many do not represent anything in nature, but are classed as attractor flies or lures, designed to tempt the fish to take out of curiosity. A number of the silver-bodied flies can emulate small fry or minnows. Most of the dry flies have a wet-fly equivalents. The use of heavier hooks, softer hen hackles instead of cock, and in the case of winged flies a backward-sloping wing, changes the dry fly into a wet one which sinks below the surface of the water. Cock hackles are used for these patterns but they are taken from the very young bird where the individual fibres are very soft.

There are two main areas of wet-fly fishing. Firstly, there are the wild rain-fed rivers and streams where it is difficult to see a fish rise let alone see a minute dry fly on the surface. On such waters, wet flies are used almost exclusively upstream and down, as necessity or terrain dictates. The second main area of wet-fly fishing is on atill waters like lakes, lochs and reservoirs, where the angler uses a team of wet flies just below the surface.

On wild streams while searching for the natural Brownie, soft-hackled wet flies like the Partridge and Orange, the Snipe and Purple, the Black Spider, a wet Coch-y-Bonddu, and many others are used.

'When do you fish a wet fly, and when a dry?'

Always fish a dry-fly pattern when you see a trout rising during a hatch of natural insects. However, when the trout refuses to rise to a dry fly, fishing just below the surface with a wet fly can often work. When no activity is obvious, it is a case for the wet fly, pure and simple.

The soft, game-bird hackles of many wet flies have the necessary mobility in the water. They pulsate and 'kick' in the current, attracting the fish by their very movement. They look alive and edible; the two key properties for a successful fly.

Wet Fly Waterhen Bloa Spider fishing techniques

A technique that has stood the test of time, where the fly (e.g. the Waterhen Bloa Spider) is fished sub-surface and is retrieved slowly using a 'Figure-of-Eight' manipulation of the line in the hand. A floating or intermediate line can be used to retrieve the Waterhen Bloa Spider

Waterhen Bloa Spider - Fly Tying Dressing

For the more adventurous among you we have provided tying specifications for the Waterhen Bloa Spider. Remember at The Essential Fly we sell the Waterhen Bloa Spider at incredible prices with a top quality fly and service to back it up. It is certainly worth tying the Waterhen Bloa Spider yourself to understand the pleasure of catching a fish with your own tied fly, however at the price we sell flies it is only worth tying one or two Waterhen Bloa Spider as your can spend more time fishing instead of tying flies - buy volume online with us.

Hook Sizes

12 to 16


Pale yellow silk, thread very lightly dubbed ideally with mole fur so the colour of the thread shines through the dubbing.


Gun metal grey waterhen / moorhen feather

In Mike Harding's book on Northen spiders there is a delightful quote: "The mole fur must be dubbed, according to Malcolm Greenhalgh, very lightly, “as light as your mother-in-law’s beard.”

Critical to tying spiders is the sparseness of the hackles. You should not have more than 2 turns of hackle on a northern spider. Less is more!


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