Denmark, Grenaa - 10 msm - Annebjerg plantation - 200 m to the sea - 3. of September, 2013. Outdoor photo, dayfind / Freelandphotos.
Found on Betula. Length: 9 mm - Foto: Kjeld Brem

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And here another younger larva:
Denmark, Grenaa - 10 msm - Grenaa skovsø - About 2 km from the sea - 27. of August, 2013. Outdoor photo, dayfind / Freelandphotos.
Found on Betula. Length: 10 mm - Foto: Kjeld Brem

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And here a grown-up larva:
Denmark, Grenaa - 10 msm - Grenaa Heath - About 2 km from the sea - 1. of October, 2013. Outdoor photo, dayfind / Freelandphotos.
Found on Betula pendula. Length: 15 mm - Foto: Kjeld Brem

Young larvae is missed on the site:
http://www.lepiforum.de/lepiwiki.pl?Falcaria_Lacertinaria