Lep:Yponomeutinae
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16.015 Swammerdamia caesiella (Hübner,1796)
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initial mine

Food Plant: Betula pendula (Birch)

Egg: Laid on a leaf

Mine: June-July, September-October

Notes: The initial tiny mine (as shown) was identified as S.caesiella by Chris Snyers in 2012. The larva then feeds mostly on the upper surface of the leaf, under a slight web. The young larva is green but it changes colour as it matures. The final instar larva is darker green dorsally with yellow-green blocks on its side and subdorsally.

National Status: Common

Bradley No: 437

Data: 29.ix.2012, Zutendaal de Lieteberg, Belgium

Image:© Chris Snyers

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