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Live oak gallfly (Callirhytis quercuspomiformis)

The live oak gallfly or live oak apple gall wasp (Callirhytis quercuspomiformis) galls vary considerably depending on the time of year. The following images demonstrate the extreme dimorphism between the summer unisexual generation gall, which forms on stems, and the spring bisexual generation gall, which forms on leaves.

Live oak gallfly or live oak apple gall wasp (Callirhytis quercuspomiformis or Amphibolips quercuspomiformis).  Stebbins Cold Canyon, Solano county, CA. Stock Photo ID=GAL0026
Live oak gallfly (Callirhytis quercuspomiformis), summer unisexual generation gall on interior live oak (Quercus wislizenii). Stebbins Cold Canyon Reserve, Solano County, California.
GAL0026

Live oak gallfly or live oak apple gall wasp (Callirhytis quercuspomiformis or Amphibolips quercuspomiformis).  Stebbins Cold Canyon, Solano county, CA. Stock Photo ID=GAL0027
Live oak gallfly (Callirhytis quercuspomiformis), close-up view of a summer unisexual generation gall on interior live oak (Quercus wislizenii). Stebbins Cold Canyon Reserve, Solano County, California.
GAL0027

Live oak gallfly or live oak apple gall wasp (Callirhytis quercuspomiformis or Amphibolips quercuspomiformis).  Stebbins Cold Canyon, Solano county, CA. Stock Photo ID=GAL0046
Live oak gallfly (Callirhytis quercuspomiformis), spring bisexual generation gall on interior live oak (Quercus wislizenii). Black Diamond Mines Regional Preserve, Contra Costa County, California.
GAL0046

Next Gall: Oak apple wasp (Trichoteras vaccinifoliae)



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All images copyright Timothy Boomer. All rights reserved worldwide.