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Heterarthrus nemoratus (Fallén, 1808)
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Food Plant: Betula spp. (Birch)

Mine: Summer

Notes: The older part of the mine is characteristically a red-brown colour and the mine contains little frass as the larva ejects it through a slit (shown by the red arrow) A large blotch mine is formed. The larva pupates in the mine in a disc structure (as shown). Mine shown on Betula pendula.

Data: 10.viii.2014, ex mine 03.viii.2014, Koersel, (Limburg), Belgium

Image:© Carina Van Steenwinkel

sponsored by Colin Plant Associates (UK) LLP/Consultant Entomologists