Rhopalomyia hirtipes is a species of gall midges, insects in the family Cecidomyiidae.

They are found in the eastern part of North American on buds and stems of Solidago juncea Galls of a this species form at the base of the stem in mid-June to mid-July, surrounded by a rosette of long leaves, and develop from vegetative buds.

As the gall matures, it becomes ovoid, 8-25mm long and 6-36mm wide, often changing its color from green to brownish.

The adult emerges from early to late September and galls are spongy, usually multi-chambered, and split open at the apex into several lobes.

The galls can be difficult to locate, and were rare even in fields where S. juncea was the dominant plant.