Phanacis hypochoeridis


    The larva of the cynipid wasp Phanacis hypochoeridis causes galls to form in Cat's-ear (Hypochaeris radicata). This takes the form of an elongated swelling, usually in the main stem of the plant, but sometimes in the flower stalk or petiole, succulent at first, later hard often wrinkled inside – up to 50 chambers, each with a yellowish-white larva. The gall is seen more often than the adult wasp.

    Identification difficulty

    Adult Gall


    Where Cat's-ear occurs.

    When to see it

    Summer and autumn.

    UK Status

    Widespread but uncommon or under-recorded in Britain.

    VC55 Status

    Status in Leicestershire and Rutland not known.

    Leicestershire & Rutland Map

    MAP KEY:

    Yellow squares = NBN records (all known data)
    Coloured circles = NatureSpot records: 2020+ | 2015-2019 | pre-2015

    UK Map