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. The larva then moves to another leaf, forming a broader mine. Both mines can pucker the blade. A spring mine in a leaf of Brachypodium sylvaticum with frass piled at the bottom and the larva mining upwards.

Data: 20.iii.2023, Aston Rowant NNR, Oxfordshire, VC23

Image:© Will Langdon