Aulacidea podagrae
Knotty enlargements scattered along stem at bases of leaves. On Lactuca canadensis.
[Photo caption]
352. On Lactuca canadensis. The adults emerged the first week in June (Chi); in May (VA).
- LH Weld: (1959) Cynipid galls of the eastern United States©
Reference: https://www.biodiversitylibrary.org/item/273718#page/96/mode/1up