Red Pea Gall Wasp - Cynips divisa

    Alt Name
    Pea Gall

    Cynips divisa is a Cynipid gall wasp that causes Pea Galls to form on Pendunculate and Sessile Oak. A Red Wart Gall is the sexual generation gall and can be found in axillary or terminal buds on the twig, and leaf, it is inconspicuous so less often seen. The gall of the agamic generation is the Red Pea Gall and this is common on the underside of the Oak leaves. These galls are more likely to be seen than the adult wasps.

    Identification difficulty

    Adult Gall


    Anywhere that the host trees grow

    Life History

    Cynips divisa has a life cycle which encompasses a sexual generation as well as an agamic (all female with no need to mate) generation. The two generations cause different galls in different locations of the Pendunculate Oak trees (see above)

    UK Status

    Common and widespread in Britain

    VC55 Status

    It appears to be uncommon in Leicestershire and Rutland but is probably under recorde.

    Leicestershire & Rutland Map

    MAP KEY:

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

    UK Map