Andricus tubularius (agamic)
The inducer of this gall is unknown or undescribed.
Hosts: Quercus turbinella / Quercus x undulata
Detachable: bothi
Color: brown, yellow, tan
Texture: stiff, hairless, ruptured/split
Abundance: occasional
Shape: conical, cluster
Season: Fall, Summer
Related:
Alignment:
Walls:
Location: stem
Form: tapered swelling
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.
Field notes on gall-inhabiting cynipid wasps with descriptions of new species
“
Andricus tubularius, new species
Host. — Quercus undulata.
Gall (fig. 22). — Smooth, tan-colored, blunt, cylindrical cells bursting out through the bark singly or in vertical rows of 2-6, only the upper third or less protruding, not deciduous. Single cells measure 3.2 mm. long by 1.7 mm. in diameter with Avail .1-.2 mm. thick.
Occur in early summer on small twigs of previous season's growth. Exit hole at apex and old galls show as a row of holes.
- LH Weld: (1926) Field notes on gall-inhabiting cynipid wasps with descriptions of new species©
Reference: https://www.biodiversitylibrary.org/page/7610635#page/355/mode/1up
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