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Liriomyza sonchi Hendel, 1931
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forms blotch mines


Food Plant: Sonchus oleraceus (Smooth Sow-thistle) and other Sonchus (Thistle) spp. (In Germany, Arnoseris (Lambs Succory))

Mine: Bivoltine. late spring & summer

Pupa: Outside the mine

Notes: Forms a large upper surface blotch (as shown). Secondary feeding lines are visible. Scattered frass grains are seen in the mine. Often several larvae feeding together. Widespread in South - London, Middlesex, Berkshire, Warwickshire, Co. Clare, Co. Wexford. Mine shown is on S.oleraceus

Data: 16.viii.2015, Downham Market, Norfolk, VC28

Image:© Rob Edmunds

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