[Undescribed. Genus assigned to Iteomyia based on appearance.]
Willow [Salix discolor assigned as a placeholder]
Mass. July. Conical, smooth above leaf; fleshy with small cavity below.
”- MT Thompson: (1915) An illustrated catalogue of American insect galls©
Reference: https://www.biodiversitylibrary.org/page/33339925#page/70/mode/1up