Our ID Notes may contain important tips necessary for distinguishing this gall from similar galls and/or important information about the taxonomic status of this gall inducer.
Plant Galls of the Western United States
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Rhopalomyia sp. B
Bud-gall midge
[Plate 420; Page 248]
This gall midge species induces clustered, monothalamous terminal bud galls on desert broom [Baccharis sarothroides].
Unless noted otherwise in the ID Notes, observations of this gall are collected in the Observation Field Gallformers Code with value b-sarothroides-bud-gall on iNaturalist. You can view them here: