Food Plant: Alnus glutinosa (Alder)

Egg: Upper side of leaf

Mine: May-July:August-October

Pupa: Under a silk membrane on underside of leaf

Notes: Initially in an irregular gallery becoming a blotch usually over a vein (as shown). Later in two successive longitudinally rolled leave

Data: 14.viii.2011, Saxilby Flood, Lincolnshire, VC54

Image:© Martin Gray