Unknown f-californica-tapered-twig-gall
The inducer of this gall is unknown or undescribed.
Hosts: Frangula californica / Frangula purshiana
Detachable: integral
Color: brown, gray, red
Texture: bumpy, hairy
Abundance:
Shape: spindle
Season: Fall
Related:
Alignment:
Walls: thin
Location: stem
Form: tapered swelling
Cells:
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.
Gallformers ID Notes
“
Tapered swellings on the twig ends of Frangula californica. The galls are thin-walled, and contain frass, indicating it may be induced by a sawfly, moth or beetle. Observed in California in October. A cross-sectioned gall in California revealed a moth caterpillar. In addition, a Cosmopterigid moth was reared from a very similar terminal stem gall on F. purshiana in Oregon.
”- Gallformers Contributors: (2024) Gallformers ID Notes©
Further Information:
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See Also:
Unless noted otherwise in the ID Notes, observations of this gall are collected in the Observation Field Gallformers Code with value f-californica-tapered-twig-gall on iNaturalist. You can view them here:
