Macrodiplosis q-agrifolia-vein-fold

The inducer of this gall is unknown or undescribed.
Family: Cecidomyiidae | Genus: Macrodiplosis
Detachable: integral
Color: green, tan
Texture: hairless
Abundance:
Shape:
Season: Fall
Related:
Alignment: integral
Walls: thin
Location: upper leaf, leaf midrib, on leaf veins
Form: pocket
Cells:
Possible Range:i
Common Name(s):
Synonymy:
Pending...
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image of Macrodiplosis q-agrifolia-vein-fold
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image of Macrodiplosis q-agrifolia-vein-fold
image of Macrodiplosis q-agrifolia-vein-fold
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image of Macrodiplosis q-agrifolia-vein-fold

Gallformers ID Notes

A midrib or lateral vein fold/swelling elevated above the leaf, with a long slit opening below. Sometimes multiple observed on a single leaf. The galls contain midge larvae. Observed on Quercus agrifolia in California in September and October.

According to Joyce Gross, Dr Gagne has identified larvae from similar galls as Macrodiplosis and Dasineura. Based on other galls, it seems likely that the Dasineura larva is an inquiline.

- Gallformers Contributors: (2023) Gallformers ID Notes©


Further Information:
Pending...

See Also:
Unless noted otherwise in the ID Notes, observations of this gall are collected in the Observation Field Gallformers Code with value q-agrifolia-vein-fold on iNaturalist. You can view them here:
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