Food Plant: Carex spp, - usually Carex acutiformis (Lesser Pond Sedge), C.paniculata (Great Tussock Sedge) or C.versicaria (Bladder Sedge)

Egg: laid on a leaf

Mine: March-May

Notes: The initial mine is towards the leaf tip but then it changes direction to form an elongated blotch, which may occupy half the width of a leaf. The greenish or grey frass mostly is found in the early part of the mine. The mine is yellow white to grey. The pupa is shown and is formed in a leaf angle. Found in wet bogs or on acid heaths

Data: 04.2014, river Windrush valley, East Gloucestershire, VC33

Image:© Guy Meredith