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Caddisfly Species Rhyacophila grandis (Green Sedge)

This is an especially large species of Rhyacophila, with a maximum size of 30mm.  

Where & When


Region: West

Time Of Year (?): February to August

Preferred Waters: Small streams


Rhyacophila grandis Fly Fishing Tips


Gary LaFontaine notes in Caddisflies that imitataions of these larvae work well during non-hatch periods because the widely spread emergence dates mean the mature larvae are available year-round.

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