Updated October 15, 2026
    nymph

    Micro Caddis Larvae (Green Rock Worm)

    Imitates rhyacophila (Green Rock Worm) Caddis

    Imitation of the bright green Rhyacophila caddis larva (green rock worm). One of the most abundant free-living caddis species.

    Hook sizes

    #14#16#18

    in green, olive

    Type
    nymph
    Imitates
    Rhyacophila (Green Rock Worm) Caddis
    Difficulty
    beginner
    Technique
    indicator, euro nymph
    Water
    freestone, tailwater

    When to fish it

    Year-round in rocky freestone streams where Rhyacophila are present.

    Catches

    More nymph patterns

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    nymphFlashback Scud Wet Hare's Ear#14 #16 #18nymphMidge#20 #22 #24nymphAlbino Midge#20 #22 #24nymphTunghead Hot Spot Pheasant Tail Jig#14 #16 #18

    Read before you go

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