Dip:Anthomyiidae
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Pegomya steini (Hendel,1925)
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larva in mine

 

Food Plant: Cirsium arvense (Creeping Thistle), C.heleniodies (Melancholy Thistle), C.palustre (Marsh Thistle), Cynara colymus (Globe Artichoke)

Egg: underside of leaf

Mine: May-August

Notes: A large clear mine is formed in the centre of the leaf , with a black frass pile. Mines may coalesce and so a mine may contain several larvae. A white egg is laid at the start of the mine, on the leaf underside. Mine shown is on C.arvense and the larva is shown in the mine (right, below midrib).

Data: 28.vi.2013, Ham, (Limburg), Belgium

Image:© Carina van Steenwinkel

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

www.leafmines.co.uk