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Photo#296208
Gall Wasp - Neuroterus exiguissimus

Gall Wasp - Neuroterus exiguissimus
Cedar Valley Park, Rochester, Cedar County, Iowa, USA
June 25, 2009
Size: gall ~4 mm diameter
Gall on lower leaf surface of white oak (Quercus alba) in campground in upland woods. View of lower leaf surface.

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Gall Wasp - Neuroterus exiguissimus Gall Wasp - Neuroterus exiguissimus Gall Wasp - Neuroterus exiguissimus Gall Wasp - Neuroterus exiguissimus Gall Wasp - Neuroterus exiguissimus

Moved
Moved from Gall Wasps.

Question
Bur oak or Quercus alba--which is it?

 
White oak
Thanks for catching my use of "bur oak" as the common name and "Quercus alba" as the scientific name. I've corrected it to "white oak (Quercus alba)". I recall this as a white oak, but the leaf in the photo certainly has some "bur-oak-ish" features (probably what caused me to subconsciously say "bur" when I wrote the posting); however, this leaf came from the bottom of a large tree and is a "shade leaf" that is bigger and broader than typical.

Moved
Moved from Galls. Definitely a cynipid gall, but if it is single-celled as it appears to be, it doesn't seem to match any of the woolly galls in Felt (1).

Moved
Moved from ID Request.

Mite Gall?
Just a guess, but these fuzzy ones sometimes are mite galls. I don't know the midwestern galls at all, though... Moving to Galls for now.

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