Galls are irregularly shaped and about 4 mm in diameter. When larvae exit the galls for pupation, galls collapse and become dark brown, sunken spots that could be mistaken for leaf spots ... Circular exit holes of 1-2 mm diameter ...
[See source for photos.]
- Dara, Surendra K.: (2015) New invasive pest, the ficus eye-spot midge, Horidiplosis ficifolii in California©