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. Pupation occurs within the mine (as shown). 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