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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. Pupation is in the mine. The white puparium has a distinctive dark ventral strip. The puparium may also be dark in colour (as shown from exuviae). Widespread in the UK and common throughout Europe.

Data: mine coll 18.ii.2019, adults emerged 02.iii.2019/03.iii.2019, Silfield, East Norfolk, VC27, Graham Moates

Image:© Barry Warrington

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