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Disc gall wasp (Feron parmula)

The disc gall wasp (Feron parmula, previously Andricus parmula) induces tiny (up to 3mm), glossy, disc-shaped galls on the leaves of several white oak species. The galls are adorned with streaks of red and are raised slightly in the center, as well as along the periphery.


Disc gall induced by Feron parmula. Stacked and stitched micro panorama of 881 exposures at 7.5x lifesize. Lake Berryessa, Napa County, California, USA.
GAL0112


Crop of the GAL0112, showcasing the nature's incredible details captured by a 7.5x microscope objective.


Disc gall induced by Feron parmula. Focus-stacked composite of 263 exposures at 7.5x lifesize. Lake Berryessa, Napa County, California, USA.
GAL0117


Disc gall wasp (Feron parmula), individual gall on California scrub oak (Quercus berberidifolia). Focus-stacked composite of 69 exposures at 5x lifesize. Lake Berryessa, Napa County, California, USA.
GAL0110


Disc gall wasp (Feron parmula), highly-detailed focus-stacked composite of galls on California scrub oak (Quercus berberidifolia). Stebbins Cold Canyon Reserve, Solano County, California, USA.
GAL0065


Disc gall wasp (Feron parmula) galls on a California scrub oak leaf. Stebbins Cold Canyon Reserve, Solano County, California, USA.
GAL0064


Disc gall wasp (Feron parmula) galls on a California scrub oak leaf. Stebbins Cold Canyon Reserve, Solano County, California, USA.
GAL0019


Disc gall wasp (Feron parmula), close-up of gall on California scrub oak leaf. Stebbins Cold Canyon Reserve, Solano County, California, USA.
GAL0020


Disc gall wasp (Feron parmula), extreme close-up of gall on California scrub oak leaf. Stebbins Cold Canyon Reserve, Solano County, California, USA.
GAL0021


Disc gall wasp (Feron parmula) galls on a California scrub oak leaf. Stebbins Cold Canyon Reserve, Solano County, California, USA.
GAL0030


Disc gall wasp (Feron parmula), several galls on the underside of a valley oak leaf. Cosumnes River Preserve, Sacramento County, California, USA.
GAL0040

Next Gall: Fimbriate gall wasp (Andricus opertus)



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All images copyright Timothy Boomer. All rights reserved worldwide.