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Liriomyza valerianae Hendel, 1932
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thread like frass

Food Plant: Valeriana dioica (Marsh Valerian), V.officinalis (Common Valerian)

Mine: Spring and Summer

Notes: Forms a short broad linear mine with black frass, in strings. Mines shown on V.officinalis (Common Valerian)

Data: 19.vii.2019, Pegsdon Hills NR, Bedfordshire, VC30, M G Banthorpe

Image:© A M Banthorpe

Recording Grade: 3

Hering, E M (1957) - Bestimmungstabellen der Blattminen von Europa.
Papp L & Cerný M (2017), Agromyzidae (Diptera) of Hungary. 3. Phytomyzinae
Robbins, J (1990) - A Provisional Atlas of The Leaf Miners of Warwickshire.
Spencer, K A (1976) - The Agromyzidae of Fennoscandia and Denmark.
Spencer, K.A (1972) - "Diptera: Agromyzidae" Handbooks for the Identification of British Insects, Royal Entomological Society of London.

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