Food Plant: Alisma plantago-aquatica (Water-plantain)
Recorded Elsewhere: Luronium natans (Floating Water-plantain), Sagittaria sagittifolia (Arrowhead)

Mine: Summer

Notes: Makes long mines which are blotch like with small galleries formed when the larvae are young. The blotches turn brown (as shown). A larva is shown in the mine. Little frass is in the mine. The larvae swap leaves and wander around on the leaf surface until they can find a suitable entry point. Pupation is external to the leaf.

Data: 25.viii.2021, Dungeness, East kent, VC15

Image:© Tony Witts