AB Fish Report
Insect Encyclopedia

Golden Stonefly

Perlidae

Perlidae

StoneflyHook #6-1025-40 mm body

Peak activity

JanFebMarAprMayJunJulAugSepOctNovDec
Golden Stonefly — Nymph

Nymph

Flattened body with two tail cerci; found under rocks in riffles.

Golden Stonefly — Adult

Adult

Four wings folded flat over the back; long antennae.

Habitat & hatch

Found in rivers and tailwaters, most commonly in riffles and bank. Nymphs under rocks; adults crawl out on banks and boulders. Often associated with cobble and boulder. Nymphs crawl to rocks and banks to emerge; adults often found on riparian vegetation.

Timing

Individual emergence windows typically last 7 to 21 days. Strongest surface activity occurs around the morning, and the afternoon.

Sources

  • AB Fish Report synthesis from peer-reviewed Alberta and western North America literature.