Sponge Gall Midge
Rhopalomyia pomum

Gall from
            Rhopalomyia pomum
These round galls are found on Big Sagebrush and
made by a Gall Midge (Rhopalomyia pomum). You
 can find out more about them on Western North
 American Naturalist
© Carol Davis 4-12-2017,
Antelope Island, Davis County, UT

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