Food Plant: Ballota nigra (Black Horehound), Lamium spp. (Dead-nettle), Marrubium vulgare ( White Horehound), Stachys spp. (Woundwort)

Mine: Summer and early autumn

Notes: The frass is conspicuous in the mine and the mine is initially linear (as shown), then develops into a white blotch, often enveloping this early mine

Agromyzidae Recording Scheme Grade: 2

Data: 27.vii.2003, Fleet, Hants,VC12

Image:© Rob Edmunds

References:
Hering, M (1957) - Bestimmungstabellen der Blattminen von Europa.
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.