Hym:Tenthredinidae
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Heterarthrus wuestneii (Konow, 1905)
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ventral view of larva

 

Food Plant: Acer campestre (Field maple) only.

Mine: Bivoltine: summer & autumn

Pupa: Outside the mine, inside an excised cut out disc.

Notes: A blotch like H.aceris, but smaller and usually including the tip of a lobe. There is always an excised hole and the mines go brown. Uncommon. The larva is seen in ventral view.

Synonymy: Heterarthrus healyi

Data: 20.v.2014, Balen, (Antwerpen), Belgium

Image:© Carina Van Steenwinkel

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