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Gall type #17

  • Russo (2021) Page 159, Plate 234. [Little Cup Gall Wasp, Unknown #28]
  • Along midrib vein, underside of leaf, 1.5 - 2mm diameter.
  • Have seen on Quercus vacciniifolia and Quercus chrysolepis, but galls from the two different
         hosts appear somewhat different and it's not clear if they are the same species.
  • Calaveras and Glenn Counties (California)


  • IMAGE 1      November 24, 2007      Calaveras County      Host Quercus vacciniifolia.     


    IMAGE 2
    November 6, 2007
    Calaveras County
    Host Quercus vacciniifolia.

    IMAGE 3
    November 24, 2007
    Calaveras County
    Host Quercus vacciniifolia.

    IMAGE 4
    November 24, 2007
    Calaveras County
    Host Quercus vacciniifolia.

    IMAGE 5
    Emerged from gall
    collected Nov 2007.

    June 7, 2008
    Calaveras County
    Host Quercus vacciniifolia.
    The galls below (Images #6-8) from Quercus chrysolepis may be induced by a different species than the galls on Quercus vacciniifolia above.

    IMAGE 6
    May 23, 2012
    Glenn County
    Host Quercus chrysolepis.

    IMAGE 7
    May 23, 2013
    Glenn County
    Host Quercus chrysolepis.

    IMAGE 8
    May 23, 2013
    Glenn County
    Host Quercus chrysolepis.

    IMAGE 9
    May 23, 2013
    Glenn County
    Host Quercus chrysolepis.

    Back to undescribed galls page.

    all photos and text © Joyce Gross