Food Plant: Food Plant: Betula (Birch)

Mine: April - May

Notes: The largest and commonest of the Eriocraniidae. The mine starts at or near the leaf edge and then widens into a blotch. The young larva has a dark head and sclerotizations on the prothorax (as shown). As the larva matures it loses these dark markings, as shown in the bottom photo ( which is the top mine, but photographed 24 hours later).

Data: 30.iv.2009 (top) 01.v.2009 (bottom), Fleet, Hants

Image:© Rob Edmunds