Location: upper leaf, lower leaf, leaf midrib, on leaf veins, between leaf veins
Form:
Cells: monothalamous
Possible Range:i
Common Name(s):
Synonymy:
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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Harmandia sp C
Bead-gall midge
[Page 68]
Hosts: Populus tremuloides
These galls protrude on either side of leaves and show a hairy slit on the ventral side.
Unless noted otherwise in the ID Notes, observations of this gall are collected in the Observation Field Gallformers Code with value p-tremuloides-bumpy-bead-gall on iNaturalist. You can view them here: