Hym:Tenthredinidae
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Heterarthrus aceris (Kaltenbach, 1856)
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Food Plant: Acer pseudoplatanus (Sycamore) only.

Mine: Univoltine: early summer.

Notes: A large, upper surface marginal blotch, usually going brown and usually with an excised hole, which is characteristic of Heterarthrus species. A widespread miner of Sycamore. The larva is pale green and has the characteristic Heterarthrus 'collar' on the prothorax, with two further spots on the meso and metathorax.

Data: 31.v.2008, Krems, Austria, Ewald Altenhofer

Image:© Rob Edmunds

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