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Asphondylia s-sempervirens-bud-rosette-gall

The inducer of this gall is unknown or undescribed.
Family: Cecidomyiidae | Genus: Asphondylia
Hosts: Solidago sempervirens
Detachable: integral
Color: green
Texture: leafy
Abundance: frequent
Shape: cluster, rosette
Season: Summer, Fall
Related:
Alignment: erect, integral
Walls: thin
Location: bud, stem
Form:
Cells: monothalamous
Possible Range:i
Common Name(s):
Synonymy:
Taxonomy and phylogeny of the Asphondylia species (Diptera: Cecidomyiidae) of North American goldenrods: challenging morphology, complex host associations, and cryptic speciation
“

Aggregated bud galls that are very similar to those of A. monacha are also found on S. sempervirens ... and S. bicolor ..., and although we could not find morphological differences between A. monacha and individuals from these populations, our molecular analysis indicates that the latter belong to one or more undescribed species.

[this genus on goldenrods was researched extensively for this paper; please refer to it for many more details of gall biology, insect life history, anatomy, and phylogeny]

”

- Netta Dorchin, Jeffrey B. Joy, Lukas K. Hilke, Michael J. Wise, Warren G. Abrahamson: (2015) Taxonomy and phylogeny of the Asphondylia species (Diptera: Cecidomyiidae) of North American goldenrods: challenging morphology, complex host associations, and cryptic speciation©

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Unless noted otherwise in the ID Notes, observations of this gall are collected in the Observation Field Gallformers Code with value s-sempervirens-bud-rosette-gall on iNaturalist. You can view them here:
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