HOST: Allionia sp., Umbrella-wort.
The gall (PI. 2, fig. 1) is a regular swelling of the stem 2.5 to 6 cm. long with a maximum of 1 cm. in width. Each gall is confined to a single node of the stem. The larvae burrow and feed in the pith, each gall containing many of them. The adults emerge by separate holes at any part of the gall. In all, five galls were collected near the small town of Dripping Springs, about 40 miles north west of Austin.

- RH Painter: (1935) The Biology of some Dipterous Gall-makers from Texas^©