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Pink Albert | Barbless.co

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Mayfly

Pink Albert

Epeorus albertae · species

A western flatheaded mayfly that matters when trout key on pinkish mayfly duns and spinners.

Overview

About Pink Albert

Pink Albert is the angler name for Epeorus albertae, a species of flatheaded mayfly in the family Heptageniidae. It occurs across Canada, the western United States, and Alaska, making it a relevant hatch to know on Idaho freestone and riffled rivers.

Life Cycle

EggsNymphEmergerDun / AdultSpinnerEgg Laying SpinnerSpent Spinner

Stages

Egg, nymph, emerger, dun, spinner, egg-laying spinner, and spent spinner. As a mayfly, it begins as an aquatic nymph and ends with brief winged adult stages that can create focused dry-fly feeding.

Emergence cues

Look for activity in the broader mayfly season when water is warming and riffles come alive; hatches are often most noticeable from late morning into afternoon, with spinner activity commonly near lower light.

Behavior

Nymphs hold in current-facing positions on streambed structure. Emergers and duns are vulnerable as they leave fast water, and trout may switch hard to egg-laying or spent spinners when adults collect over riffles and seams.

Where It Hatches

Pink Albert

One species, multiple rivers.

RiverJANFEBMARAPRMAYJUNJULAUGSEPOCTNOVDEC

Henrys Fork of the Snake River
South Fork Boise River
South Fork Snake River

Angler Notes

Why it matters: When this hatch is on, trout can get selective to both the pink-toned adult and the vulnerable transition stages. Because it is a flatheaded mayfly from fast water, fish often feed where riffles soften into seams, slicks, and edges.
Imitation tips: Carry a simple progression: a slim clinger nymph, a soft-hackle or emerger, a pinkish upright dun, and a flush-floating spinner. Keep bodies lean, avoid overdressing the hackle, and match the overall rosy tone more than an exact shade.
Key life stages: NymphEmergerDun / AdultSpinnerSpent Spinner
Presentation: Start subsurface with short-drift nymphs through riffles and pocketwater. As adults appear, target seam lines and softer cushions with a dead-drift emerger or dun; if fish refuse high-riders, drop to a lower-floating or spent pattern and prioritize drag-free drifts.

Identification

Key features: A clinger-style mayfly with a flattened nymph built for fast current; adults are recognized by a slim mayfly profile and the soft pink-to-rose cast anglers associate with the hatch.
Size: Generally medium mayfly range; fish imitations around #12–16 to match local naturals.
Coloration: Nymphs are typically mottled and stream-camouflaged in tan, brown, or olive-brown tones; adults are usually pale to medium pink with lighter wings, while spinners often show a slightly richer rosy cast.
Similar bugs: Pale Morning DunFlavMahogany DunMarch Brown

Habitat

Water types: Freestone riversRiffled runsPocketwater streams
Substrate: Rocky bottoms, especially cobble and boulder structure where clinger nymphs can stay pinned in current.
Conditions: Clean, cool, well-oxygenated moving water with moderate to fast flow.

Eaten By

Yellowstone Cutthroat Trout