Food Plant: Potamogeton gramineus (Grass-leaved Pondweed)Elsewhere: Hydrocharis morsus-ranae (Frogbit)

Mine: June-August

Notes: Makes very irregular mines with lateral bulges on floating Pondweed. The underside of the leaf is shown. Pupation occurs within the mine. A puparium was extracted from similar mines in this habitat and barcoded to identify the species.

Data: 04.viii.2021, Ainsdale NNR, Merseyside, VC59

Image:© Gary Hedges