Food Plant: Salix alba (White Willow), Salix babylonica (Weeping Willow), Salix purpurea (Purple Willow), Salix fragilis (Crack Willow). Salix triandra (Almond Leaved Willow), Salix pentandra (Bay Willow)

Egg: Lower surface of leaf

Mine: June, August -October

Pupa: Under a membrane on the margin of leaf

Notes: A tortuous lower epidermal mine with a central brownish frass-line (as shown). The larva then mines into the petiole and subsequently into a second leaf, normally opposite, where it creates another similar epidermal mine.

Data: herbarium specimen, coll.Rob Edmunds, Somerset

Image:© Rob Edmunds