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Phytomyza crassiseta Zetterstedt, 1860
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Food Plant: Veronica chamaedrys (Germander Speedwell), V.montana (Wood Speedwell), V. officinalis (Heath Speedwell)

Mine: June-July; September-November

Notes: Forms a narrow mine which follows the leaf margin, then turns and forms a secondary blotch (as shown). Pupation is in the mine. The puparium is formed lower surface and is white with a dark ventral strip. The spiracula protrude through the leaf surface. The puparium may be dark in colour. Widespread in the UK and common throughout Europe. Mine shown is on Veronica chamaedrys (Germander Speedwell)

Data: 24.vi.2018, Downham Market, Norfolk, VC28

Image:© Rob Edmunds

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