Common resident.

Most easily recorded from leaf mines on Ulmus spp. with larva feeding in August to October. In a sinuous gallery mine which turns back and forth on itself forming a false blotch with gut-like arrangement of dispersed frass; larva green.

	Mine: Either the leaf or a good photograph required

Recorded in 44 (31%) of 140 10k Squares.
First Recorded in 1887.
Last Recorded in 2021.
(Data up to end 2022)