Food Plant: Food Plant: Populus nigra (Black Poplar) and var.italica (Lombardy Poplar), Populus x canadensis (Canadian Poplar).

Egg: Underside of leaf

Mine: end of June - July, September - October

Notes: A gallery leading to a blotch. The larva is greenish-yellow, head brown.

Data: Lancashire

Image:© Ian Kimber