Dip:Agromyzidae
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Nemorimyza posticata (Meigen, 1830)
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the mine goes brown as it ages

 

Food Plant: Solidago virgaurea Golden-Rod), cultivated Solidago canadensis (Canadian Golden-Rod) - in Canada also on Aster spp.

Mine: Bivoltine: summer & autumn

Pupa: Outside the mine

Notes: A short broad gallery, normally at the margin, leading to a blotch with obvious feeding lines in whorls. Mines go brown (as shown)

Data: 30.vii.2008, Fleet, Hants, VC12

Image:© Rob Edmunds

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