Rhopalomyia s-fistulosa-stem-cluster-gall

The inducer of this gall is unknown or undescribed.
Family: Cecidomyiidae | Genus: Rhopalomyia
Detachable:
Color: gray
Texture: hairy
Abundance: rare
Shape: conical, globular, cluster
Season: Summer
Related:
Alignment: erect, supine, leaning
Walls: thin
Location: stem
Form:
Cells: monothalamous
Possible Range:i
Common Name(s):
Synonymy:
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image of Rhopalomyia s-fistulosa-stem-cluster-gall
image of Rhopalomyia s-fistulosa-stem-cluster-gall
image of Rhopalomyia s-fistulosa-stem-cluster-gall

Revision of the goldenrod-galling Rhopalomyia species (Diptera: Cecidomyiidae) in North America

The galls of this species were found by E. Fontes in May and June of 1982 around Gainesville, Florida (Fontes et al. 1994). They developed on young stems, and seemed to have stunted the growth of the apical meristem, because galled ramets were usually only 30 cm tall and atypically branched under the galls. The galls are oval with a tapered tip, single-chambered, grayish, and are typically aggregated around a stem to form a “star-like” structure. Galls found in August were already dry except for one or two records.

- Netta Dorchin, Miles V. McEvoy, Todd A. Dowling, Warren G. Abrahamson, Joseph G. Moore: (2009) Revision of the goldenrod-galling Rhopalomyia species (Diptera: Cecidomyiidae) in North America©


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 s-fistulosa-stem-cluster-gall on iNaturalist. You can view them here:
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