Hym:Tenthredinidae
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Fenella nigrita Westwood, 1839
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there may be several mines in a leaf

 

Food Plant: Normally Potentilla reptans (Creeping cinquefoil) and Agrimonia (Agrimony) but also Rubus fructicosus (Bramble)

Mine: Bivoltine: summer & autumn.

Pupa: Outside the mine.

Notes: A full depth gallery-blotch. Often several in a leaf (as shown). Widespread. .The mines are on Potentilla sp.

Data: 18.x.2014, bos T'Ename, Oudenaarde, (Oost Vlaanderen)

Image:© Carina Van Steenwinkel

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www.leafmines.co.uk