Insect mine on honeysuckle (Lonicera) leaf.
Honeysuckle recorded separately here: https://www.inaturalist.org/observations/193871442
Ocupied linear mine on upper surface of Meadow buttercup. Frass close together like string of pearls.
Upper leaf mine with terminal lower leaf blotch on Honeysuckle, Lonicera, probably L.periclymenum. Only mine observed in area, on only plant with growth above 1.5m.