Hym:Tenthredinidae
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Heterarthrus cuneifrons Altenhofer & Zombori, 1987
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excised pupal discs

 

Food Plant: Acer pseudoplatanus (Sycamore)

Egg: laid in the centre of the leaf

Mine: early Summer

Notes: Forms a large central blotch mine, which rarely reaches the leaf edge. There may be more than one mine in a leaf and two excised pupal discs are shown. The pupa forms inside a disc in the mine, which is made furthest away from the leaf centre. First discovered in Kent in 2005.It is a scarce leaf miner in Europe

Data: 30.v.2014, Mol, (Antwerpen), Belgium

Image:© Carina Van Steenwinkel

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