Photo: Naturalist Observation, c. 1912.
Hatch

Dragonflies

Big, year-round stillwater protein. Dragonfly nymphs live up to four years and grow large, so trout target them hard — especially in summer when surface hatches are over. A top "go deep in the heat" food for the trip window.

Hatch timing / abundance

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Nymphs present year-round (up to ~4 years as nymphs); a summer staple when fish hold deep gofishbc articles 2026 06.
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Summer tactic: full-sink line, big nymph retrieved toward shore gofishbc articles 2026 06.

Imitated by

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Dragonfly nymph patterns; woolly bugger as a close searching approximation.

Found in (waterbodies)

Data & occurrence sources

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Confirm and expand the Found in list and abundance with hard data — benthic-sample communities via CABIN, occurrence records via GBIF (roll up taxa per watershed) and iNaturalist, DNA-barcode IDs via BOLD. Access, licences and the FWA-segment join method are in aquatic invertebrate and river health data sources 2026 07.

Related

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hot weather stillwater — the summer-deep playbook.
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leeches — the other big summer mouthful.

Sources

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Go Fish BC articles — life cycle, summer tactics.