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Gall type #16
Weld (1957) Figure 62.
Russo (2021) Page 144 & 145, Plate 203. [Bent Stem Gall Wasp, Unknown #16]
Polythalamus, integral stem gall, on new growth.
Have seen on Quercus chrysolepis.
Contra Costa, Los Angeles, Kern, and Mendocino Counties (California)
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IMAGE 1
May 22, 2012
Mendocino County
Host Quercus chrysolepis.
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IMAGE 2
March 26, 2008
Kern County
Host Quercus chrysolepis.
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IMAGE 3
April 22, 2010
Kern County
Host Quercus chrysolepis.
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IMAGE 4
December 9, 2012
Contra Costa County
Host Quercus chrysolepis.
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IMAGE 5
Image #4 gall cut open,
showing larval chambers.
December 9, 2012
Contra Costa County
Host Quercus chrysolepis.
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IMAGE 6
December 2, 2012
Los Angeles County
Host Quercus chrysolepis.
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IMAGE 7
Image #6 gall cut open, showing
cynipid adult that never emerged,
with a parasitoid.
December 2, 2012
Los Angeles County
Host Quercus chrysolepis.
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IMAGE 8
Image #6 gall cut open, showing
cynipid adult that never emerged,
with a parasitoid.
December 2, 2012
Los Angeles County
Host Quercus chrysolepis.
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IMAGE 9
Cynipid larva from Image #6 gall.
December 2, 2012
Los Angeles County
Host Quercus chrysolepis.
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