Polystepha q-nigra-leaf-spot

Complete

The inducer of this gall is unknown or undescribed.

Gallformers Code:

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Family: Cecidomyiidae (Midge) | Genus: Polystepha

Hosts: Quercus nigra
Detachable: Integral
Color: yellow, green
Texture: hairless
Abundance:
Shape:
Season: Fall
Alignment: integral
Walls: thin
Location: upper leaf, lower leaf, between leaf veins
Form: leaf spot
Cells: monothalamous
Possible Range:
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Gall image
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On Quercus nigra

Image by ncb1221 © CC-BY

Image Details

Gall image
Source:
License: CC-BY
Attribution:
Creator: ncb1221
Uploader: adamjameskranz
Last Modified: adamjameskranz
Caption: On Quercus nigra
Gall image
Image by ncb1221 © CC-BY
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Further Information (1)

Gallformers ID Notes - Gallformers Contributors (2026) [Link]

License: Public Domain / CC0

Created Feb 4, 2026 1:47 PM UTC • Last updated Feb 4, 2026 1:47 PM UTC