Gallformers

Explore the seasonal timing of gall development and emergence with our phenology tool

🗓️ Phenology Tool

Polystepha q-alba-spot-gall

The inducer of this gall is unknown or undescribed.

Family: Cecidomyiidae | Genus: Polystepha

Hosts: Quercus alba / Quercus stellata

Detachable: integral

Color: green

Texture: hairless

Abundance:

Shape:

Season: Spring

Related:

Alignment: integral

Walls:

Location: between leaf veins

Form: leaf spot

Cells: monothalamous

Possible Range:ⁱ

Common Name(s):

Synonymy:

On Quercus alba

Image by Scott Ulian © CC-BY

On Quercus alba. Upper side of the leaf

Image by P.T. Butterill © CC-BY

On Quercus alba. Lower side of the leaf

Image by P.T. Butterill © CC-BY

On Quercus alba

Image by Scott Ulian © CC-BY

On Quercus alba

Image by Scott Ulian © CC-BY

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 circular leaf spot projecting slightly above and below the leaf of Quercus alba. A similar gall has been observed on Quercus stellata. Observed in Virginia in May. Easily confused with spring sexgen galls of Callirhytis quercusfutilis.

”

Further Information:

Author(s)

▲

Year

▲

Title

▲

License

▲

Gallformers Contributors

2024

Gallformers ID Notes

https://creativecommons.org/publicdomain/mark/1.0/

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-spot-gall on iNaturalist. You can view them here: