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 plant-feeding gall midges of North America
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Rolled margin of leaflet ... Obolodiplosis robiniae (Haldemann)
Larvae are gregarious, multivoltine, and pupate in the rolled margins. Host: R. pseudoacacia.