Food Plant: Brachypodium sylvaticum (False Brome), Bromus erectus (Upright Brome) and other Gramineae (Grasses).

Egg:  Often two or three close together on the upper side.

Mine: November-May; July.

Pupa: Attached to leaf or stem with silken girdle.

Notes: Initially a narrow brownish mine with blackish frass at its base (as shown). The larva then moves to another leaf, forming a broader mine. Both mines can pucker the blade. Habitat where mines were found in good numbers on scattered Brachypodium sylvaticum plants growing under a dense canopy of Hazel and Beech alongside an old track through woodland on chalk downland.

Data: 24.iv.2022, Oxfordshire, VC23

Image:© Will Langdon