This is an especially large species of Rhyacophila, with a maximum size of 30mm. Where & WhenRegion: West
» Species grandis (Green Sedge)
Time Of Year (?): February to August
Preferred Waters: Small streams
Rhyacophila grandis Fly Fishing TipsGary 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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