This gall is similar to Russo's photo and consistent with his description, but it hasn't been confirmed that this gall was induced by his undescribed species rather than Disholandricus lasius.
This gall is similar to Russo's photo and consistent with his description, but it hasn't been confirmed that this gall was induced by his undescribed species rather than Disholandricus lasius.
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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Unknown #30
Petiole-gall wasp
Hosts: Quercus vacciniifolia
This wasp induces round to ovoid galls on the lower petioles of huckleberry oak leaves.
Unless noted otherwise in the ID Notes, observations of this gall are collected in the Observation Field Gallformers Code with value q-vacciniifolia-petiole-gall on iNaturalist. You can view them here: