Unknown q-alba-new-growth-swelling
The inducer of this gall is unknown or undescribed.
Hosts: Quercus alba
Detachable: integral
Color: brown, gray
Texture: stiff, hairless, ruptured/split
Abundance:
Shape:
Season: Fall
Related:
Alignment: integral
Walls: thick
Location: stem
Form: tapered swelling, hidden cell
Cells: polythalamous
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
“
A slight tapered swelling at the base of new growth twigs on Quercus alba. Polythalamous, containing multiple larvae with no apparent larval cells. The exterior of the gall is unusual in nearly always being marked by one or more splits or divots, sometimes concealed by atypically persistent bud scales. Observed containing larvae in Michigan in October.
This gall bears some resemblance to those ascribed to Lasioptera querciperda, also known on Quercus alba, but differs from descriptions and illustrations of that species in being apparently confined to the area just above the base of new growth. Additionally, larvae extracted from this gall seem to be cynipids rather than cecidomyiids.
”- 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 q-alba-new-growth-swelling on iNaturalist. You can view them here:
