Asphondylia thompsonae (spring generation)
The inducer of this gall is unknown or undescribed.
Family: Cecidomyiidae | Genus: Asphondylia
Hosts: Symphyotrichum lanceolatum
Detachable: integral
Color: green
Texture: hairless, leafy
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Season: Spring
Alignment: integral
Walls: thick
Location: bud
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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.
The Gall Midges (Diptera: Cecidomyiidae: Cecidomyiinae) From Allegheny County Pennsylvania
“
...is a multivoltine species. Summer galls occur in the leaf axils of Symphyotrichum lanceolatum ... These galls are green, tightly compacted in the leaf axil with one larva per gall. Females which emerge from late summer galls oviposit into meristematic tissue at the base of the plant where the neonate larvae overwinter. The spring crown gall develops at this location the following May.
”- JD Plakidas: (2016) The Gall Midges (Diptera: Cecidomyiidae: Cecidomyiinae) From Allegheny County Pennsylvania©
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