To follow up on my post from earlier this week (
http://www.fishingwithrod.com/yabbse/index.php?topic=43501.0 )
Here are a couple of my favorite mayfly patterns. There patterns are generic mayfly patterns that can match pretty much any natural by varying 1) the size of the pattern and 2) the color. Size is more important than color.
As I mentioned before if a hatch can be anticipated, you can fish a mayfly hatch for an extended period of time. While the duns may only provide an opportunity for at most a few hours or perhaps as little as 20 minutes, nymphs increase their activity for hours or even days before emerging.
The two patterns provided imitate the spring time Callibaetis hacthes common on some lakes in the Thomspson Kamloops region.
Soft Hackle Hare's Ear
Hook: #10 to 16 standard wet fly
Bead: gold (optional)
Rib: gold or copper wire
Body: hare’s ear dubbing or blend
Thorax: Peacock herl or peacock ice dubbing
Hackle: Hungarian partridge 1 or 2 turns
An excellent pattern for the pre-hatch period it represents both an active nymph and a rising 'emerger'. A beaded version will reach 5 or 6 feet below surface when fished on a floating line and a leader of 10 feet or more.
Sparkle Dun
hook- Tiemco 100 #12 or #14 or other standard dry fly hook
Thread –8/0 tan
Tail- Grey antron or similar synthetic yarn
Wing- Fine Deer Hair
Abdomen & thorax - Callibaetis, tan or grey dubbing
This is a slight modification of the well know Compara dun in that it substitutes a bit of yarn for the more traditional hackle or hair tails and thus makes it more of an emerger pattern since the yarn imitates the nymphal shuck. Fish take it well even when feeding on duns.
here is a short video on how to tie the Sparkle Dun:
https://www.youtube.com/watch?v=FQn8Crz0DwkSince the Compara dun is essentially identical I will only provide a photo. In this case the tail uses moose body hair:
One thing that is great about tying mayflies these days is that dubbing blends to match the major hatches are readily available at good fly shops. So look for a bag marked as Callibaetis or if matching another hatch - March Brown, Green Drake, Pale Morning Dun etc as the case may be...or just ask.
All these patterns are effective for many situations and I have used them successfully for March Brown and Baetis hatches in the Fraser Valley in the early spring, in Alberta and Ontario. Just match the size to the natural insect.
Many interior lakes also get a secondary mayfly hatch in the fall. They are the same species but in the fall are much smaller - more like size 16 or even 18.
Some fishing tips will provided in a follow up post.