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). 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

References:
Hering, E M (1957) - Bestimmungstabellen der Blattminen von Europa.
Hering, EM (1951) - Biology of the Leaf Miners,35,203
Robbins, J (1990) - A Provisional Atlas of The Leaf Miners of Warwickshire.
Turner, CR (20110 - Bagous alismatis (Marsham) (Curculionidae) in Devon, The Coleopterist (20) 3, 118