Polystepha americana
The inducer of this gall is unknown or undescribed.
Family: Cecidomyiidae | Genus: Polystepha
Hosts: Quercus rubra
Detachable: integral
Color: brown, green, black
Texture: hairless
Abundance:
Shape: spindle
Season: Fall
Related:
Alignment: integral
Walls: thin
Location: lower leaf, leaf midrib, on leaf veins
Form: tapered swelling, hidden cell
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.
31st Report of the State Entomologist on Injurious and Other Insects of the State of New York
“
Cincticornia americana
This small, broad- winged form was reared in April 1908 from a slight blisterlike swelling on the lateral veins of red oak, Quercus rubra taken at Albany, N. Y., November 12, 1907.
Gall. The gall is a slight, circular, blisterlike swelling on the lateral veins beneath and of very nearly the same color as the leaf. It is some 3 mm long and 1 mm wide, and may extend along the vein as well as into the leaf tissues beside.
”- EP Felt: (1915) 31st Report of the State Entomologist on Injurious and Other Insects of the State of New York©
Reference: https://www.biodiversitylibrary.org/page/36619989#page/549/mode/1up
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