Hosmer Lake

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Importance by half-month
 Super    Major    Minor    Slight    None

Hatches are matched from Westfly's database of "standard" fly patterns.


Size 14-16 Pheasant Tail. Brown


Size 14-16 Quigley Cripple, Film Critic, Hackle Stacker. Gray to tan

Lakes, slow water: chuck-and-sit


Size 14-16 Sparkle Dun, Hairwing Dun, Adams, Comparadun. Gray to tan

Lakes, slow water: chuck-and-sit

► Expect late-morning to mid-afternoon hatches, with the stronger hatches near the end of the month.

► Trout will feed on nymphs for a couple of hours before the hatch. Take advantage of this and cast a nymph pattern, then retrieve it slooooooowly; use an intermediate line with a long leader. A Flashback Pheasant Tail, size 14-16, should work quite well. In my experience, a Flashback PT outfishes a regular PT by 3-to-1 during this hatch. The reason is that many nymphs develop a shiny back just before they hatch, and trout look for this feature.

► During a hatch, use a Callibaetis Cripple, Sparkle Dun, or similar fly with a chuck-and-sit presentation.


Size 8-12 Marabou Damsel. Olive, yellow-olive, browns, greens

Lakes near submerged vegetation: count-down-and-retrieve, slow retrieve, wind drift

► Nymphs should become effective as the water warms up. Imitations work best near weedbeds.

► The standard damselfly retrieve is to pull two inches of line in two seconds, pause two seconds, then repeat. Use an intermediate line; damselfly nymphs move in the top inch or so of water. That said, you can do pretty well just trolling a damsel nymph as you slowly and steadily kick around the lake in your float tube or 'toon.


Size 10-22 Chans Chironomid Pupa, Zebra Midge. Black, gray, olive, red, creams, browns


Size 10-22 Griffiths Gnat, Sprout Midge. Black, gray, olive, red, creams, browns

► You might see hatches of different species throughout the day and evening. Each may require a slightly different fly.

► During a midge hatch, the static midge tactic usually works well. If the hatch is during the bright part of the day, however, you may do better with the deep midge tactic because trout can be reluctant to come to the surface.


Size 2-10 Woolly Bugger, Bunny Leech, Hale Bopp Leech, Possie Bugger. Black, browns, olives

Lakes; backwaters and slow sections of rivers: count-down-and-retrieve, slow retrieve, wind drift

► It's hard to go too far wrong with a leech pattern or a Woolly Bugger on a clear intermediate line. A slow retrieve is usually best.


► A lot of fish hang out in the narrow channel between the two halves of the lake, but canoe and kayak traffic makes them very skittish. But if you fish the channel very early in the morning and at dusk, the traffic is greatly reduced and you will have better fishing.

► The south half of the lake warms up fastest, while the north half stays very cool.

Confluence Fly Shop 541-678-5351

Fin and Fire 541/548-1503

Fly and Field Outfitters 541-318-1616

The Fly Fisher's Place 541-549-3474

The Hook 541-593-2358

The Patient Angler 541-389-6208

Sunriver Fly Shop 541-593-8814

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