Unknown c-americana-vein-sac

Complete

The inducer of this gall is unknown or undescribed.

Gallformers Code:

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Family: Unknown (Unknown) | Genus: Unknown (Unknown)

Hosts: Corylus americana / Corylus cornuta

Detachable: Integral

Color: yellow, green

Texture: pubescent, hairy

Abundance:

Shape:

Season: Fall

Alignment: integral

Walls: slit

Location: upper leaf, lower leaf, leaf midrib, on leaf veins

Form: pocket

Cells: monothalamous

Possible Range:

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Synonymy (1)

Name	Type	Notes
Eriophyes coryli	scientific	Amrine suggests this is a midge or aphid gall

1 / 4

on Corylus americana

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.

Further Information (4)

Insect galls of Springfield, Massachusetts, and vicinity - FA Stebbins (1910) [Link]

License: Public Domain / CC0

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

License: Public Domain / CC0

Amrine Catalog - James Amrine (2019) [Link]

Plant Galls and Gall Makers - EP Felt (1940) [Link]

License: CC-BY

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