Updated October 15, 2026
    nymph

    Caddis Larva (Green Rockworm)

    Imitates rhyacophila (free-living caddis) larva

    Free-living green caddis larva common in western streams. Chartreuse and deadly.

    Buy at AmazonTie it yourself

    Hook sizes

    #12#14#16

    in bright green, olive

    Type
    nymph
    Imitates
    Rhyacophila (free-living caddis) larva
    Difficulty
    beginner
    Technique
    indicator, euro-nymph
    Water
    freestone

    Tie it yourself

    When to fish it

    Year-round, especially in freestone streams.

    Where to buy

    Amazon→

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