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Spined turban gall wasp (Cynips douglasii)

The spined turban gall wasp (Cynips douglasii, previously Antron douglasii) induces remarkably-shaped galls which vary in color from purple to pink to white. In addition to the main larval chamber, each gall contains an additional empty chamber, whose purpose remains a scientific mystery.


Spined turban gall wasp (Cynips douglasii), summer-generation gall on valley oak (Quercus lobata). Focus-stacked composite of 47 exposures at ~2x lifesize. Vacaville, Solano County, California, USA.
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Spined turban gall wasp (Cynips douglasii) [right] and red cone gall wasp (Andricus kingi) [left], galls on valley oak (Quercus lobata). The tiny "dot" beneath the spined turban gall is a California jumping gall. Vacaville, Solano County, California, USA.
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Spined turban gall wasp (Cynips douglasii) galls on valley oak (Quercus lobata). Yolo County, California.
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Spined turban gall wasp (Cynips douglasii) galls on valley oak (Quercus lobata). Yolo County, California.
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Spined turban gall wasp (Cynips douglasii) gall on valley oak (Quercus lobata). Yolo County, California.
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Next Gall: Manzanita leaf gall aphid (Tamalia coweni)



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All images copyright Timothy Boomer. All rights reserved worldwide.