Gall type #20
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This gall is similar to Heteroecus melanoderma but is different in a few ways: 1) the exit hole is not at
the base of the gall; 2) the hairs are sparser and not golden; 3) the tips of the galls get brown and bent while
the rest of the galls is still green.
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Russo (2021) Page 146, Plate 205. [Squash Neck Gall Wasp, Unknown #18]
Monothalamous stem gall. Wasp exits near top. Approximately 10-15 mm.
Have seen on Quercus palmeri.
Kern and Riverside Counties (California)
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IMAGE 1
March 25, 2008
Kern County
Host Quercus palmeri.
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IMAGE 2
January 30, 2009
Riverside County
Host Quercus palmeri.
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IMAGE 3
January 30, 2009
Riverside County
Host Quercus palmeri.
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IMAGE 4
March 25, 2008
Kern County
Host Quercus palmeri.
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