Vein Gall Midge
Asphondylia sp.
Galls have sparse hairs and nearly obliterate the midrib. Galls measure 7 mm long by 5 mm wide and bulge out more noticeably than those of the midrib fold-gall midge. Each gall has a corresponding lip or slit on the leaf's dorsal surface.
Host:
Ceanothus velutinus
- Russo, Ronald A. : (2021) Plant Galls of the Western United States©