Hym:Tenthredinidae
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Fenusa pumila Leach, 181)
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there may be several mines in a leaf

 

Food Plant: Betula (Birch)

Mine: early Summer and early Autumn

Pupa: outside the mine

Notes: Formerly F.pusilla. The mine is a blotch on the upper side of the leaf. It starts by the midrib and extends towards the leaf edge. The larvae have four spots - the anterior spots being large (as shown) which distinguishes it from P.thomsoni. Mines shown is on Betula pubescens.

Data: 30.viii.2014, Meergoren, Mol, (Antwerpen), Belgium

Image:© Carina Van Steenwinkel

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