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For Insects, Spiders & Their Kin
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Bottom - Zeugophora

Bottom - Zeugophora
Angel Lake, Elko County, Nevada, USA
August 28, 2012

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Aspen gall - Zeugophora Bottom - Zeugophora


Due to the dark, discolored patch on the underside of the mine, where the egg was presumably inserted, along with the nearby patch of feeding punctures, I think it is very likely that this mine was made by a weevil (subtribe Rhamphina). Two genera are associated with Populus, and mines have not been described for all of the species.

Moved from Unidentified Galls.