Green, leafy bud gall...Rhopalomyia ambrosiae Gagné

This species causes a foreshortening of the stem. The gall has green leaves growing out of its apex...Specimens from Texas are somewhat different from the type series taken on A. artemisiifolia in Florida and may be a different species. Hosts: A. artemisiifolia, A. psilostachya.

forms bud-galls. Hosts: Ambrosia sp.

Rhopalomyia ambrosiae

CE Stegmaier, Jr writes that R ambrosiae forms a bud gall on the terminal tips of A artemisiifolia.