[2] Females in spring and early summer deposit eggs in the leaf buds of Solidago altissima and sometimes Solidago gigantea, leading to the development of galls on the leaves in which the fly larvae live and feed.

[2] Later in the summer leafy rosette galls are formed from buds of Solidago altissima; this species is not known to induce such late-season galls on Solidago gigantea.

[2] These rosette galls are 3-5 centimeters in diameter with a single chamber at the center in which the larvae live.

[2] Adults are very similar in appearance to Asphondylia monacha but the shape of the pupae differ between the two species.

[2] This article related to members of the fly infraorder Bibionomorpha is a stub.