Upper Midwest Stem Insect Survey

Local feeder (Diptera: Cecidomyiidae) in midribs of Acer

Record Details

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Record no.:0003
Feeding guild:Local feeder in midrib
Taxonomy:Diptera: Cecidomyiidae: cf. Contarinia negundinis
Stages observed:trace
Hosts in Acer:A. negundo (boxelder)

This local feeder forms a large succulent gall on the midrib of a leaflet. The culprits had already evacuated one gall I observed in early June. The gall keys to Contarinia negundinis in Gagné (1989), and its characteristics are also consistent with those described for C. negundinis in Gallformers Contributors (2024a).

References

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Page created: February 9, 2026. Last update: none