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Eriophyes neoessigi
This particular gall was about the size of a large bunch of grapes....and pretty heavy.
Found in a cottonwood in an artificial riparian area surrounded by Sonoran Desert mesquite and cactus scrubland, vacant lots, and industrial parks.
Eriophyid mites are gall-makers.
Spotted on May 15, 2009
Submitted on Dec 20, 2012
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